Coal-electricity-aluminum integrated production scheduling system and method

Abstract

The invention relates to the technical field of integrated production scheduling, and specifically provides a coal-electricity-aluminum integrated production scheduling system and method. The system comprises a scheduling strategy subsystem, and a production field subsystem, a planning subsystem, a financial subsystem, a plant-level monitoring subsystem, a material subsystem, an environmental protection subsystem and a fuel transportation subsystem which are respectively connected with the scheduling strategy subsystem. The method comprises the following steps: calculating an adjusted operation plan, production data and financial data by using a preset profit and loss balance model, determining a production scheduling optimization strategy according to a calculation result output by the preset profit and loss balance model, and carrying out coal power supply and marketing and power generation strategy optimization to realize coal, power and aluminum product supply and marketing strategy optimization. And scientificity, economical efficiency and high efficiency of coal-electricity-aluminum integrated production scheduling are realized.

Description

Technical Field

[0001] The present invention relates to the technical field of integrated production scheduling, and specifically provides a coal-electricity-aluminum integrated production scheduling system and method. Background Art

[0002] Coal is the main fossil energy in China and also the main raw material for many important chemical products. The coal chemical industry has achieved industrial production with a series of technical supports. However, the rapid development of the coal chemical industry has brought a series of problems, such as the destruction of coal resources and the ecological environment. Some blind plans ignore the carrying capacity of resources and the ecology, which not only have an adverse impact on the sustainable development of the coal chemical industry, but also have an adverse impact on the sustainable, stable and healthy development of the social economy. Moreover, the existing production of electrolytic aluminum and coal-based products has problems such as high energy consumption, high pollution, low efficiency, low recycling rates of carbon dioxide and fly ash, and so on.

[0003] In recent years, industrial integration has developed rapidly in China, which can achieve the integration of the upstream and downstream of the industrial chain and has advantages such as complementary advantages and efficient collaboration in production and operation. The integration of the coal-electricity-aluminum industry can supply the coal produced by the coal mine to the internal power plant of the enterprise as fuel for power generation, and then produce aluminum products for external sales. Different from individual coal mines and power plants, the profits of coal-electricity-aluminum integrated enterprises can come from multiple aspects such as power generation by the power plant, sales of aluminum products, and coal sales.

[0004] Generally speaking, the electricity price of the power plant is often relatively fixed, but the prices of external coal sales and aluminum sales will fluctuate to a certain extent with the market conditions. In some regions where coal-electricity-aluminum integrated units are located, the price fluctuations of coal and aluminum throughout the year are relatively large. However, in the coal supply and sales strategies of most coal-electricity-aluminum integrated enterprises, the coal supply volume from the coal mine to the power plant and the external coal sales volume are uniformly arranged in the production and operation plan formulated at the beginning of the month. In the process of formulating this plan, it is usually based on the principle of meeting the aluminum production and power generation plans to ensure sufficient coal supply for the power plant, and the remaining coal production is sold externally, but it lacks the ability to adapt to the fluctuations in the coal market price.

[0005] Production scheduling in the coal-electricity-aluminum production process is a key link to improve production efficiency, reduce production costs and energy consumption. At present, the production planning of most domestic enterprises is in the stage of manual compilation. Manual planning mostly relies on experience, with a long time cycle, rough intensity, inability to reach specific equipment, difficulty in optimizing based on multiple objectives, low efficiency and unscientific compilation. Most lack a simulation system as support and cannot give an objective judgment before production, thus bringing great production risks. At the same time, during the execution of the production plan, there is a lack of comprehensive monitoring and evaluation of the plan execution situation. In case of abnormal production situations, there is a lack of an effective real-time scheduling decision support system. In addition, the existing production scheduling systems cannot integrate the continuous / intermittent production processes of coal, electricity and aluminum, have insufficient coordination ability for the overall production process management, lack data fusion, coupling calculation and intelligent linkage for cross-process production, the data integration and sharing are not perfect enough, and it is difficult to effectively integrate and share the data of different processes, making it difficult to meet the requirements of dynamic, orderly, continuous and compact operation of metallurgical process engineering.

[0006] The production process in the coal-electricity-aluminum industry has both continuous and discrete characteristics. It is different from the continuous production process in the petrochemical industry and also different from the discrete manufacturing process in the machinery industry. It is a hybrid production process. Therefore, the planning and scheduling work in the coal-electricity-aluminum industry is complex:

[0007] (1) From the input of raw materials to the output of the final product in the coal-electricity-aluminum production process flow, most processes in the whole logistics have both physical and chemical changes at the same time. It is a high-temperature and high-energy-consuming process, and its production activities have characteristics such as real-time, continuity and randomness, so the complexity of production planning and scheduling is very high.

[0008] (2) The key to the production in the coal-electricity-aluminum industry is to ensure production safety, stability, smooth logistics, maximize the capacity of bottleneck equipment, and produce at full load, with high quality and high efficiency. The main production plan should focus on this goal.

[0009] (3) The production plan and scheduling in the coal-electricity-aluminum industry not only need to consider the information flow and material flow, but also must consider the energy supply flow. Its scheduling decision-making function needs to provide the best control strategies for materials and energy. The decision should not only aim to improve production efficiency and reduce production costs, but also take into account goals such as saving energy and reducing pollution.

[0010] (4) The temperature and time of the products are very important in the process. If the temperature is too low, the batches have to be reheated, resulting in an increase in energy costs and time; if the temperature is too high, it may damage the machine. If the time is too early, the machine is occupied; if the time is too late, the continuity of the product will be damaged.

[0011] (5) The main process routes and equipment for coal-electricity-aluminum production remain basically unchanged. The entire process flow has strong continuity or sectional continuity, and sometimes there are multiple process routes coexisting. The duration of operations / tasks depends on the previous and subsequent operations.

[0012] Currently, there are not many specialized planning and scheduling products developed for coal-electricity-aluminum production in China. Some universities and research institutions, for academic research purposes, have developed some specialized scheduling systems in combination with specific enterprises, and their generality is subject to certain limitations. Summary of the Invention

[0013] The present invention provides a coal-electricity-aluminum integrated production scheduling system and method to solve at least one problem or defect existing in the prior art, and to achieve the scientificity, economy, and high efficiency of coal-electricity-aluminum integrated production scheduling.

[0014] In a first aspect, the present invention provides a coal-electricity-aluminum integrated production scheduling system, including: a scheduling strategy subsystem and a production site subsystem, a planning subsystem, a financial subsystem, a plant-level monitoring subsystem, a material subsystem, an environmental protection subsystem, and a fuel transportation subsystem, which are respectively connected to the scheduling strategy subsystem;

[0015] Among them, the production site subsystem is used to preprocess the working status and operating parameters of production equipment and the process parameters of the production process through sensors, such as filtering, buffering, conditioning, and amplifying according to different signals, and then send the signals to the corresponding controller of the production site subsystem after optoelectronic isolation, and through the controller, real-time control and information processing are carried out and sent to the scheduling strategy subsystem;

[0016] The planning subsystem is used to receive external production plans, formulate production plans, dynamically adjust operation plans in real time, compile operation plans for each work station, compile or adjust operation plans for each section, interact operation plans for each section, update downstream operation plans, schedule abnormal production plans (such as duplicates), etc., and send them to the scheduling strategy subsystem;

[0017] Each work station includes: the execution equipment of each system of the production equipment is used as a work station, and each work station receives the scheduling strategy corresponding to the operation plan of each work station, and works together to achieve pollution-free emissions and integrated joint production of products such as coal, power generation, and electrolytic aluminum;

[0018] The interaction of operation plans for each section includes: the coal-electricity dynamic scheduling module, the electricity-aluminum dynamic scheduling module, and the ingot casting dynamic scheduling module can communicate or interact with each other, so that each scheduling module can perform collaborative scheduling according to the operation plans of the upstream and / or downstream;

[0019] The preparation or adjustment of the operation plans for each section includes: preparing or adjusting the operation plan for the power section, preparing or adjusting the operation plan for the coal section, and preparing or adjusting the ingot casting operation plan for the ingot casting section, so as to achieve the coordinated scheduling of the upstream and downstream processes in the coal section, power section, and ingot casting section;

[0020] The operation plan for the coal section includes: coal distribution plan, package allocation plan, and coal package turnover plan; the operation plan for the power section includes: molten aluminum production plan, molten aluminum transfer plan, and aluminum ingot cutting plan; the ingot casting operation plan includes: aluminum ingot warehousing and outbound plan and aluminum production plan; the update of the downstream operation plan can achieve the synchronous adjustment of the coal section, power section, and ingot casting section;

[0021] The financial subsystem is used to statistically calculate the current electricity price, desulfurization agent price, denitration agent price, water intake price, and other material prices, and send the obtained financial data to the dispatching strategy subsystem;

[0022] The plant-level monitoring subsystem is used to obtain the standard coal consumption data for power supply and send the obtained standard coal consumption for power supply to the dispatching strategy subsystem;

[0023] The material subsystem is used to obtain the internal transportation cost data and send the obtained internal transportation cost data to the dispatching strategy subsystem;

[0024] The environmental protection subsystem is used to obtain the desulfurization agent consumption, denitration agent consumption, and water consumption, and send the obtained data to the dispatching strategy subsystem;

[0025] The fuel transportation subsystem is used to obtain the coal calorific value data and coal consumption data and send the obtained data to the dispatching strategy subsystem;

[0026] The dispatching strategy subsystem receives the production plan and operation plan of the planning subsystem, schedules the production process, calculates the obtained production data and financial data, and determines the production dispatching optimization strategy according to the calculation results, so that the enterprise optimizes the production strategy according to the production dispatching optimization strategy;

[0027] The dispatching strategy subsystem includes: a data collection and transmission module, a process rule library, and a dynamic dispatching module;

[0028] The data collection and transmission module forwards the externally received production plan to the dynamic dispatching module through information interaction with the dynamic dispatching module, so that the dynamic dispatching module schedules the production process of coal, electricity, and aluminum according to the production plan;

[0029] The process rule library is used to store the process rule requirements in the production process of coal, electricity, and aluminum;

[0030] The dynamic scheduling module retrieves the process rule requirements stored in the process rule library, and collaboratively schedules the production processes in the coal area, the power area, and the ingot casting section according to the production plan and the process rule requirements, and formulates the operation plans for the coal area, the power area, and the ingot casting section;

[0031] The data acquisition and transmission module is also used to collect the production achievements and logistics achievements in the production process in real time and forward them to the dynamic scheduling module, and the dynamic scheduling module is used to dynamically adjust the operation plan in real time according to the production achievements and logistics achievements;

[0032] The process rule library is also used to store all the constraint conditions in the production process;

[0033] The dynamic scheduling module determines the process route based on the aluminum species to be produced, and determines the main process flow of the production process;

[0034] The dynamic scheduling module combines the actual production situation of the production site subsystem, and based on the process rule requirements and optimization strategies of each process, establishes the task allocation mechanism for the equipment of each process and the task coordination mechanism between the upstream and downstream processes, automatically formulates the operation plans for each work station, and conducts a full-process simulation of the entire production process to optimize the scheduling plan, refine the operation time of each work station, reduce the waiting time, improve the production efficiency, and ensure fine production, completion of production tasks, and smooth logistics;

[0035] The dynamic scheduling module includes: a coal-electricity dynamic scheduling module, an electric-aluminum dynamic scheduling module, and an ingot casting dynamic scheduling module that cooperate with each other;

[0036] The coal-electricity dynamic scheduling module, the electric-aluminum dynamic scheduling module, and the ingot casting dynamic scheduling module can interact with the operation plans of each section, so that each scheduling module conducts collaborative scheduling according to the operation plans of the upstream and / or downstream;

[0037] The electric-aluminum dynamic scheduling module is used to formulate or adjust the operation plan of the power area according to the production plan;

[0038] The coal-electricity dynamic scheduling module is used to formulate or adjust the operation plan of the coal area according to the production plan and the operation plan of the power area;

[0039] The ingot casting dynamic scheduling module is used to formulate or adjust the ingot casting operation plan of the ingot casting section according to the production plan and the operation plan of the power area, so as to realize the collaborative scheduling of the coal area, the power area, and the ingot casting section;

[0040] Among them, the operation plan of the coal area includes: coal distribution plan, package allocation plan, and coal package turnover plan; the operation plan of the power area includes: the aluminum liquid production plan, aluminum liquid transfer plan, and aluminum ingot cutting plan; the operation plan of the ingot casting section includes: aluminum ingot inbound and outbound plan and aluminum production plan;

[0041] The scheduling strategy subsystem receives the production plan formulated by the planning subsystem to schedule the production process according to the production plan;

[0042] The production plan includes an aluminum production plan, an electrolysis plan, a coal power plan, and a coal supply plan;

[0043] When the power-aluminum dynamic scheduling module adjusts the power area operation plan, the coal power dynamic scheduling module dynamically updates the upstream coal area operation plan in real time according to the power area operation plan, and the ingot dynamic scheduling module dynamically updates the downstream ingot operation plan in real time according to the power area operation plan, thus realizing the synchronous adjustment of the coal area, the power area, and the ingot section;

[0044] After the operation plan is compiled, the dynamic scheduling module issues the specific data of the operation plan to the specified equipment to control the equipment to execute the specific production plan. The data acquisition and transmission module collects actual production performance and logistics actual performance and other actual performance information during the production process to facilitate judging the deviation degree of the operation plan execution and the influence degree of event information on the operation plan. The data acquisition and transmission module is also used to update the executed operation information in a timely manner, and the dynamic scheduling module dynamically adjusts the relevant operation plan according to the executed operation information;

[0045] When there is a deviation between the actual production performance and the production plan, the dynamic scheduling module is also used to adjust the operation plan in real time, so as to realize the dynamic adjustment of the production process at any time, optimize the production rhythm, avoid large disturbances in the production process, overcome the disturbance factors in the production process, and perform dynamic management and closed-loop control on the production process;

[0046] The scheduling strategy subsystem classifies and analyzes the disturbance factors of the operation plan in combination with the process rule library, and provides optimization adjustment countermeasures for each disturbance, so that the operation plan can be optimized and adjusted, calculates the optimal production plan and updates the operation plan in real time to cope with various changes and risk problems in the production process;

[0047] When an abnormal working condition occurs, the data acquisition and transmission module is also used to receive the abnormal working condition information, and the dynamic scheduling module is used to recompile the operation plan according to the abnormal working condition information and the executed operation information to realize rescheduling when the production process is abnormal;

[0048] When the production plan is adjusted, the dynamic scheduling system is also used to dynamically adjust the operation plans of each section in real time according to the adjusted production plan and the executed operation information to realize the intelligentization of production scheduling; when the dynamic scheduling module adjusts the operation plan, it can adjust the operation time and duration, adjust the production process path, and adjust the transportation time;

[0049] In addition, the dynamic scheduling module can also be used for scheduling abnormal production plans;

[0050] The scheduling strategy subsystem further includes: an overall display and evaluation module;

[0051] The overall display and evaluation module interacts with the dynamic scheduling module and the data collection and transmission module to receive the job plan prepared by the dynamic scheduling module and the production performance and logistics performance collected by the data collection and transmission module;

[0052] The overall display and evaluation module is used to dynamically display in real time the job plans of the coal area, the power area, and the ingot section, as well as the data collection, production performance, and logistics performance, so as to realize the visualization and digitalization of the entire production process, multi-dimensionally display the job production process, and at the same time assist in production monitoring, so as to optimize and adjust the job plan and help solve sudden problems;

[0053] The overall display and evaluation module is used to compare the production performance with the production plan to evaluate whether the production plan is reasonable and provide a basis for optimizing the plan adjustment;

[0054] The overall display and evaluation module is also used to analyze and determine KPI indicators based on the production performance and logistics performance to comprehensively evaluate the efficiency, output quality, resource utilization rate, environmental protection, etc. of the production process;

[0055] The scheduling strategy subsystem further includes: a supply and marketing strategy optimization module;

[0056] The supply and marketing strategy optimization module is used to solve the problem that when formulating the coal supply and marketing strategy for a coal-electricity-aluminum integrated enterprise, the fluctuations in the coal market are not fully considered, and there is a lack of a judgment basis for adjusting the ratio of internal coal supply to external sales, resulting in the failure to timely adjust the coal supply and marketing strategy, thereby affecting the production efficiency of the enterprise;

[0057] The supply and marketing strategy optimization module includes: a data acquisition unit, a model construction unit, and a strategy generation unit;

[0058] The data acquisition unit is used to acquire the enterprise production data and financial data;

[0059] The model construction unit is used to establish a preset break-even model based on the marginal profit;

[0060] The strategy generation unit is used to calculate the acquired production data and financial data through the preset break-even model, and determine the production scheduling optimization strategy according to the calculation results output by the preset break-even model, so that the enterprise optimizes the production strategy according to the production scheduling optimization strategy;

[0061] The model construction unit is used to establish a preset break-even model based on marginal profit, including:

[0062] Calculate the marginal profit of coal sales and the marginal profit of electricity sales of the enterprise respectively;

[0063] Based on the calculated marginal profit of coal sales and the marginal profit of electricity sales, construct the marginal profit model of the enterprise;

[0064] Under the condition that the marginal profit model realizes profit maximization, determine the preset break-even model;

[0065] Since the output of aluminum products mainly depends on factors such as the process level of electrolysis per unit of electric energy, the level of production equipment, and the natural energy system, etc. However, due to the certainty of the electrolysis process, the output of aluminum products mainly depends on electricity, that is, the marginal profit of aluminum sales is mainly proportional to the marginal profit of electricity sales;

[0066] The production scheduling optimization strategy includes:

[0067] When the calculation result obtained according to the preset break-even model is greater than 0, then determine the production scheduling strategy as: priority power generation strategy;

[0068] When the calculation result obtained according to the preset break-even model is less than 0, then determine the production scheduling strategy as: priority coal sales strategy;

[0069] The data acquisition unit is used to acquire enterprise production data and financial data, including:

[0070] Based on the financial system of the enterprise, acquire the financial data of the enterprise;

[0071] Based on the plant-level monitoring information system, material system, and environmental protection system of the enterprise, acquire the production data of the enterprise;

[0072] The financial data of the enterprise includes: current electricity price, desulfurizer price, denitrator price, water intake price, and other material prices;

[0073] The production data of the enterprise includes: standard coal consumption for power supply, internal transportation cost, desulfurizer consumption, denitrator consumption, and water consumption;

[0074] The coal-electricity-aluminum integrated production scheduling system, in the actual application and implementation process, may include: physical hardware function modules and software function modules;

[0075] The physical hardware function modules include: the PCS layer composed of production equipment, sensors, and controllers; the service layer composed of an interface management server, a database server, an application layer server, and a Web server; the user layer composed of clients, computer devices, and workstations; and the network layer composed of a computer network and a communication network connecting various computer devices, controllers, and sensors.

[0076] The sensors are used to perform preprocessing such as filtering, buffering, conditioning, and amplifying the working status and operating parameters of the production equipment and the process parameters of the production process according to different signals, and then send the signals to the corresponding controllers of the production site subsystem after optoelectronic isolation.

[0077] The controllers are used for real-time control and the processing and uploading of information.

[0078] The interface management server is connected to the controllers of the production site subsystem through the network, stores various status information and process data collected by the production site subsystem in the database after data processing and format conversion, and provides a reference basis for the scheduling strategy subsystem in real time; at the same time, it converts the production orders issued by the planning subsystem or the ERP layer and stores them in the database.

[0079] The database server runs a professional relational database management system and stores the real-time process data, planning and scheduling data, and various system configuration data of the production site subsystem in the database.

[0080] The application server mainly runs software components of planning and scheduling methods, calls the data in the database server as needed, and writes the production plan and scheduling scheme into the database.

[0081] The main function of the Web server is to dynamically publish the results processed by the application server in the form of Web pages to the Internet and Intranet, so that users can display and view them through a browser on the client side.

[0082] The clients are divided into two types: professional clients and thin clients; the professional client runs professional client software on the computer to realize complex data and graphic display, and saves certain data on the local computer to realize offline analysis of the data; the thin client runs a standard browser program on the computer for regular data display and query.

[0083] The data acquisition process is as follows: The working status and operating parameters of the production equipment running in the production site subsystem, as well as the process parameters of the production process, etc., are preprocessed by sensors through filtering, buffering, conditioning, amplification, etc. according to different signals, and then the signals are sent to the corresponding sensors and controllers of the production site subsystem after optoelectronic isolation for real-time control and information upload;

[0084] The production equipment includes: a coal treatment system, a power generation system, a carbon treatment system, a solid-liquid separation system, an aluminum electrolysis system, and a dispatching and monitoring system. The execution equipment of each system serves as a work station, and each work station receives the dispatching strategy corresponding to the operation plan of each work station and works together to achieve pollution-free emissions and integrated joint production of products such as coal, power generation, and electrolytic aluminum;

[0085] The production equipment may further include: a natural energy system, such as further introducing a natural energy system to the power generation system and the aluminum electrolysis system; for example, a solar, air energy, and wind energy power generation system, a solar aluminum electrolyzer, a solar catalyst, etc.;

[0086] The coal treatment system includes: coal supply equipment; the carbon treatment system includes: a carbon treatment device, a CO2 capture device, and a CO2 decomposer; the solid-liquid separation system includes: a fly ash electrofusion solid-liquid separator; the aluminum electrolysis system includes: a solar aluminum electrolyzer; the power generation system includes: a gas power generation system; the dispatching and monitoring system includes: a remote explosion-proof monitoring center; the carbon treatment device includes: a solar catalyst;

[0087] The coal supply equipment is connected to the solar catalyst, the solar catalyst is connected to the gas power generation system and the filter, the filter is connected to the CO2 capture device; the gas power generation system is connected to the fly ash electrofusion solid-liquid separator and the solar aluminum electrolyzer, the fly ash electrofusion solid-liquid separator is connected to the solar aluminum electrolyzer, the solar aluminum electrolyzer is connected to the CO2 capture device and the solar, air energy, and wind energy power generation system, and the CO2 capture device is connected to the CO2 decomposer;

[0088] The solar, air energy, and wind energy power generation system seamlessly switches the electricity generated by solar energy, air energy, wind energy, and coal power to supply power for the power consumption of each system; the coal-electricity-aluminum integrated production dispatching system can also use CO2 as a raw material for recycling to produce products such as oil, natural gas, methanol, dimethyl ether, olefins, urea, and degradable plastics;

[0089] The production equipment further includes: a solar supergravity rotary drum dryer, an ultra-special boiler power generation system, an alumina electrofuser, and a solar water electrolyzer;

[0090] The coal supply equipment is connected to the solar supergravity rotary dryer, which is connected to a filter, an ultra-supercritical boiler power generation system, and another filter. The filter is connected to a CO2 capture device. The ultra-supercritical boiler power generation system is connected to a fly ash electro-fusion solid-liquid separator and a solar aluminum electrolyzer. The fly ash electro-fusion solid-liquid separator is connected to an alumina electro-fusion device and a solar water electrolyzer. The alumina electro-fusion device is connected to the solar aluminum electrolyzer. The solar aluminum electrolyzer is connected to the CO2 capture device and a solar air, solar, and wind power generation system. The CO2 capture device is connected to a CO2 decomposer; The ultra-supercritical boiler power generation system is connected to a fly ash electro-fusion solid-liquid separator and a solar aluminum electrolyzer. The fly ash electro-fusion solid-liquid separator is connected to an alumina capacitor and a solar water electrolyzer. The oxygen obtained from the electrolysis of the solar water electrolyzer is sent to the O2 tank, and the hydrogen obtained is sent to the H2 tank; The alumina capacitor is connected to the solar aluminum electrolyzer. The solar aluminum electrolyzer is connected to the CO2 capture device and a solar air, solar, and wind power generation system. The CO2 capture device is connected to a CO2 decomposer. The oxygen obtained from the CO2 decomposer is sent to the O2 tank, and the carbon black obtained is sent to the carbon black tank;

[0091] The software function modules include: process definition, graphical interface, plan compilation, simulation, real-time scheduling, model library, algorithm library, rule library, and interface management, etc.;

[0092] The plan compilation includes: using various optimization theories and intelligent optimization algorithms to establish mathematical models for the optimal coal-electricity plan, the optimal electrolysis plan, and the aluminum production batch plan, providing an excellent solution for the plan compilation in the coal-electricity-aluminum industry;

[0093] The simulation includes:

[0094] Performing simulations based on the production plans generated by the compilation module, and giving corresponding simulation results and performance evaluations; The mathematical models in the phased process dynamic simulation provide various parameter interfaces, which are modified according to the feedback of actual production to make the simulation effect more accurate;

[0095] Giving prediction models for the alarm parameters or troubleshooting times of various equipment failures, so that the predicted results can fit well with actual production;

[0096] The real-time scheduling includes: real-time monitoring and dynamic scheduling;

[0097] The real-time monitoring mainly monitors and tracks the actual execution of the production plan, especially monitors various abnormal situations that occur during the production process, and then feeds them back to the scheduling department in an intuitive graphical manner; The real-time monitoring module can feed the data monitored by the underlying system back to the management layer so that the scheduling personnel can timely grasp the production progress and control the abnormalities;

[0098] The dynamic scheduling mainly processes the information affecting production obtained from real-time monitoring in real time. With the help of simulation and scheduling rules, it makes practical adjustments to the production plan or re-formulates the production plan. The dynamic scheduling module should provide automatic or semi-automatic real-time scheduling decision-making solutions for workshop managers to assist them in achieving dynamic scheduling.

[0099] The model library includes: various mathematical models related to production scheduling in the main production equipment and technological processes during the production of coal-electricity-aluminum. By using methods such as statistical regression, parameter identification, data fusion, neural networks, and fuzzy logic, production, test, experimental data, and expert experience are combined and fitted to represent the mutual relationship between various parameters and their influencing factors. The mathematical models in the model library can be learned and corrected online during the actual production process to gradually improve the model accuracy.

[0100] The algorithm library includes: different optimization algorithms and artificial intelligence methods used to solve problems such as optimal production scheduling. Each algorithm is encapsulated in the form of components for easy subsequent upgrade and expansion.

[0101] The different optimization algorithms used to solve problems such as optimal production scheduling include: Gantt chart method, constructive method, dynamic programming, branch and bound method, queuing theory method, etc.

[0102] The artificial intelligence methods include: simulated annealing, genetic algorithm, tabu search, evolutionary programming, evolutionary strategy, neural network method, Lagrangian relaxation, and chaotic optimization, etc.

[0103] The rule library includes: various expert rules used in production scheduling and real-time scheduling, such as smelting rules, rules for combining scheduling sequences, rules for handling abnormal situations, etc. The above rules form a rule library in a certain way and can be continuously expanded, updated, and corrected according to the actual situation.

[0104] The interface management includes: the transfer of information between the system and each layer. For example, the downward data between the system and the ERP layer mainly includes various equipment processing capacity information, workshop production calendar, contract plan, process card, processing route sheet, human resources, material inventory, etc. The upward data between the system and the ERP layer mainly includes the completion report of the contract plan, etc., and the correction suggestion information for various production parameters of the production process. The upward data between the system and the PCS layer mainly includes various real-time information such as equipment status and production conditions, as well as the request information for real-time scheduling. The downward data between the system and the PCS layer mainly includes the production plan formulated by the plan scheduling module and the contingency scheduling plan from the real-time scheduling module. These plans are uniformly managed by the interface module for information exchange with the PCS layer.

[0105] Second aspect, the present invention further provides a coal-electricity-aluminum integrated production scheduling method, which is applied to the aforementioned coal-electricity-aluminum integrated production scheduling system, and includes the following steps:

[0106] Receive the production plans of coal, electricity, and aluminum in real time;

[0107] According to the production plans, and in combination with the requirements of process rules, coordinately schedule the production processes of the coal area, the electricity area, and the ingot section, and compile the operation plans for the coal area, the electricity area, and the ingot section;

[0108] Collect the production achievements, logistics achievements, abnormal working conditions, and market data in the production process in real time;

[0109] According to the production achievements, logistics achievements, abnormal working conditions, market data, and the requirements of process rules, dynamically adjust the operation plans of the coal area, the electricity area, and the ingot section in real time;

[0110] Use a preset break-even model to calculate the adjusted operation plans, production data, and financial data;

[0111] According to the calculation results output by the preset break-even model, determine the production scheduling optimization strategy, optimize the coal-electricity supply and sales and power generation strategies, and realize the optimization of the supply and sales strategies of coal, electricity, and aluminum products;

[0112] Among them, the production plans include coal-electricity plans, electrolysis plans, aluminum production plans, etc.;

[0113] After receiving the production plans, compile the operation plans for the three sections of coal-electricity, electricity-aluminum, and ingot according to the production plans and the requirements of process rules, and conduct dynamic simulation of the operation plans for the entire process of coal-electricity-aluminum production, so that the operation plans of each section are coordinated and matched with each other;

[0114] After the operation plans are compiled, display the operation plans in a Gantt chart and issue the operation plans to the production site subsystem;

[0115] During the production process, collect the production achievements of the production site subsystem and the logistics achievements of the material subsystem in real time, so as to conduct abnormal monitoring of the production site subsystem according to the production achievements and logistics achievements; when an abnormality occurs at the production site, dynamically adjust the operation plans according to the production achievements and logistics achievements, so as to optimize the scheduling plan, optimize the production rhythm, and overcome the disturbance factors in the production process;

[0116] When conducting abnormal monitoring of the production site subsystem, the Gantt chart can be compared with the production achievements and logistics achievements, and compare the operation time, operation duration, transportation time, etc. of each work station. If there is a time deviation, the operation plans will be dynamically adjusted;

[0117] It is also possible to compare the production achievements and logistics achievements with the production plan and process rule requirements. If there are abnormalities such as quality abnormalities and temperature deviations, the operation plan will be dynamically adjusted;

[0118] Conduct a plan evaluation on the production plan. By comparing the production plan with the production achievements, evaluate whether the production plan is reasonable, and provide a basis for optimizing the plan adjustment of the production plan;

[0119] When simulating the entire coal-electricity-aluminum production process to prepare or adjust the operation plan, dynamic simulation optimization can be carried out according to the production plan, process rule library, and simulation parameter table;

[0120] When the operation plan is determined, a turnover scheduling plan for locomotives, electricity, and coal packages will be generated simultaneously to achieve logistics support such as locomotive scheduling in the actual production process;

[0121] After all the operation plan and turnover scheduling plan are generated, they will be issued to the actual production site subsystem for execution. The production site subsystem will carry out production according to the operation plan and turnover scheduling plan;

[0122] During the production process, it is necessary to monitor the production achievements, logistics achievements, and abnormal working conditions in real time. When there are deviations and abnormal working conditions, the operation plan will be adjusted in real time dynamically to optimize the scheduling plan according to the actual production situation.

[0123] Using the preset break-even model to calculate the adjusted operation plan with production data and financial data, including:

[0124] Calculate the marginal profit of coal sales and the marginal profit of electricity sales;

[0125] Based on the calculated marginal profit of coal sales and the marginal profit of electricity sales, construct the enterprise marginal profit model:

[0126] Calculate the enterprise marginal profit;

[0127] Under the condition that the marginal profit model realizes the maximum profit, determine that there is a proportional relationship between the power generation amount and the amount of power plant coal;

[0128] Under the condition that the marginal profit model realizes the maximum profit, determine the preset break-even model to obtain the break-even point of the enterprise;

[0129] Since the output of aluminum products mainly depends on factors such as the process level of electrolysis per unit of electric energy, production equipment level, and natural energy system, etc. However, due to the certainty of the electrolysis process, the output of aluminum products mainly depends on electricity, that is, the marginal profit of aluminum sales is proportional to the marginal profit of electricity sales. Therefore, the marginal profit of aluminum sales is not calculated separately;

[0130] The market data include: market coal prices, on-grid electricity prices, fixed costs of coal-fired power companies, etc.

[0131] The embodiment of the present invention receives the production plan of the planning subsystem in real time through the data acquisition and transmission module, automatically compiles the planned operations according to the production plan and process rules, and coordinates the planned operations of each section in the coal-fired power aluminum production process, thereby opening up the overall production process and highly integrating with the planning subsystem; at the same time, the data acquisition and transmission module collects information such as the production performance of the production site subsystem and the logistics performance of the material subsystem, thereby realizing intelligent monitoring of the production process, mastering the material flow information, tracking and managing the materials in all directions, realizing the integration and sharing of data in each link of the production process, and establishing a comprehensive production data platform; the dynamic scheduling module also Dynamically adjust production operations according to production performance and logistics performance, optimize production rhythm, overcome disturbance factors in the production process, and realize intelligent and automated production scheduling; integrate the continuous / intermittent coal-electricity-aluminum production process, break the traditional production and management model, optimize operation scheduling and intelligent scheduling through simulation, improve green production level, and realize intelligent prediction, intelligent decision-making and intelligent analysis; the scheduling results are displayed through the coal-electricity-aluminum Gantt chart to realize the visualization and digitization of the entire production process, and display the operation production process in multiple dimensions, so as to achieve stable process, smooth interface, and timely regulation and control, and support continuous, compact, dynamic and orderly operation of the process;

[0132] By adjusting the operation plan in real time, the production process can be adjusted dynamically at any time, the production rhythm can be optimized, large disturbances in the production process can be avoided, disturbance factors in the production process can be overcome, and the production process can be dynamically managed and closed-loop controlled; the operation plan can be optimized and updated in real time to cope with various changes and risk issues in the production process; the operation plan of each section can be adjusted dynamically in real time to realize intelligent production scheduling; when adjusting the operation plan, the dynamic scheduling module can adjust the operation time and duration, adjust the production process path, and adjust the transportation time; re-compile the operation plan to realize re-scheduling when the production process is abnormal;

[0133] Through the optimization of coal-electricity supply and sales and power generation strategies, using a preset break-even model, calculate the obtained production data and financial data, and determine the production scheduling optimization strategy according to the calculation results output by the preset break-even model, so that the enterprise schedules and optimizes the production strategy according to the production scheduling optimization strategy, so that the integrated coal-electricity-aluminum enterprise can scientifically calculate the marginal profit of coal sales and power generation per unit of integrated coal-electricity-aluminum according to market conditions and regional characteristics, adjust the strategy in a timely manner, create more profits for the enterprise, and maximize the overall profit of coal purchase and sales and power generation; solve the problem that when formulating the supply and sales strategies of coal, electricity and aluminum products, the integrated coal-electricity-aluminum enterprise fails to fully consider market conditions or market data fluctuations, lacks a judgment basis for adjusting the ratio of internal supply to external sales, resulting in the failure to timely adjust the supply and sales strategies of coal, electricity and aluminum products, thus affecting the production efficiency of the enterprise;

[0134] Through a general, extensible, and plan scheduling application that can meet various technological processes, simulate the production process and conduct online learning. After the plan compilation is completed, the plan and scheduling scheme can also be compared and optimized; it can realize real-time monitoring of the actual production process, perform necessary data processing and statistics on various status information, be able to perform real-time scheduling as soon as possible, provide a dispatcher with an automatic or semi-automatic dynamic scheduling decision-making scheme, and quickly resume stable production.

[0135] The additional aspects and advantages of the present invention will be partially given in the following description, partially become obvious from the following description, or be understood through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0136] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0137] Figure 1 It is a block diagram of the integrated coal-electricity-aluminum production scheduling system provided by the present invention;

[0138] Figure 2 It is a block diagram of the scheduling strategy subsystem structure provided by the present invention;

[0139] Figure 3 It is a block diagram of the dynamic scheduling module structure provided by the present invention;

[0140] Figure 4 It is a block diagram of the scheduling strategy subsystem structure provided by the present invention;

[0141] Figure 5It is the block diagram of the integrated coal-electricity-aluminum production scheduling system provided by the present invention;

[0142] Figure 6 It is the block diagram of the production equipment provided by the present invention;

[0143] Figure 7 It is the block diagram of the software function module provided by the present invention;

[0144] Figure 8 It is the flowchart of the integrated coal-electricity-aluminum production scheduling method provided by the present invention. Detailed implementation manners

[0145] To make the objectives, technical solutions and advantages of the present invention clearer, the technical solutions in the present invention will be clearly and completely described below with reference to the accompanying drawings in the present invention. Obviously, the described embodiments are some but not all of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present invention without making creative efforts shall fall within the protection scope of the present invention.

[0146] Below in conjunction with Figures 1 to 8 the illustrated embodiments, the technical solutions of the present invention will be described:

[0147] Embodiment 1

[0148] An embodiment of the present invention provides an integrated coal-electricity-aluminum production scheduling system, Figure 1 which is a structural diagram of an integrated coal-electricity-aluminum production scheduling system shown according to an exemplary embodiment. As Figure 1 shown, the integrated coal-electricity-aluminum production scheduling system includes: a production site subsystem, a planning subsystem, a financial subsystem, a plant-level monitoring subsystem, a material subsystem, an environmental protection subsystem, a fuel transportation subsystem, and a scheduling strategy subsystem.

[0149] Among them, the production site subsystem is used to preprocess the working status, operating parameters of production equipment and process parameters of the production process through sensors, such as filtering, buffering, conditioning, amplifying, etc. according to different signals, and then after optoelectronic isolation of the signals, send them to the corresponding controller of the production site subsystem, and through the controller, perform real-time control and information processing and send them to the scheduling strategy subsystem;

[0150] The planning subsystem is used to receive external production plans, formulate production plans, dynamically adjust operation plans in real time, compile operation plans for each work station, compile or adjust operation plans for each section, interact operation plans for each section, update downstream operation plans, schedule abnormal production plans (such as duplicates), etc., and send them to the scheduling strategy subsystem;

[0151] Each work station includes: the execution equipment of each system of the production equipment serves as a work station. Each work station receives the scheduling strategies corresponding to the operation plans of each work station, collaborates to work, and overall achieves pollution-free emissions and integrated joint production of products such as coal, power generation, and electrolytic aluminum;

[0152] Interact with the operation plans of each section, including: the coal-electricity dynamic scheduling module, the electricity-aluminum dynamic scheduling module, and the ingot casting dynamic scheduling module can communicate or interact with each other, enabling each scheduling module to perform collaborative scheduling according to the operation plans of the upstream and / or downstream;

[0153] Compile or adjust the operation plans of each section, including: compile or adjust the operation plan of the power section, compile or adjust the operation plan of the coal section, and compile or adjust the ingot casting operation plan of the ingot casting section, so as to achieve collaborative scheduling of the upstream and downstream processes of the coal section, the power section, and the ingot casting section;

[0154] The operation plan of the coal section includes: coal distribution plan, bagging plan, and coal bag turnover plan; the operation plan of the power section includes: molten aluminum production plan, molten aluminum transfer plan, and aluminum ingot cutting plan; the operation plan of the ingot casting section includes: aluminum ingot inbound and outbound plan and aluminum production plan; updating the operation plan of the downstream can achieve synchronous adjustment of the coal section, the power section, and the ingot casting section;

[0155] The financial subsystem is used to statistically calculate the current electricity price, desulfurization agent price, denitration agent price, water intake price, and other material prices, and send the obtained financial data to the scheduling strategy subsystem;

[0156] The plant-level monitoring subsystem is used to obtain the standard coal consumption data for power supply and send the obtained standard coal consumption for power supply to the scheduling strategy subsystem;

[0157] The material subsystem is used to obtain the internal transportation cost data and send the obtained internal transportation cost data to the scheduling strategy subsystem;

[0158] The environmental protection subsystem is used to obtain the desulfurization agent consumption, denitration agent consumption, and water consumption, and send the obtained data to the scheduling strategy subsystem;

[0159] The fuel transportation subsystem is used to obtain the coal calorific value data and the coal consumption data and send the obtained data to the scheduling strategy subsystem;

[0160] The scheduling strategy subsystem is used to calculate the obtained production data and financial data, and determine the production scheduling optimization strategy according to the calculation results, so that the enterprise optimizes the production strategy according to the production scheduling optimization strategy.

[0161] The coal-electricity-aluminum integrated production scheduling system provided in this embodiment is mainly used to solve the problem that existing coal-electricity-aluminum integrated enterprises fail to fully consider market fluctuations when formulating coal, electricity and aluminum product supply and marketing strategies, lack a basis for judging the ratio of internal supply to foreign sales, resulting in failure to timely adjust coal, electricity and aluminum product supply and marketing strategies, thereby affecting the production efficiency of the enterprise.

[0162] like Figure 2 As shown, the scheduling strategy subsystem provided in this embodiment includes: a data acquisition and transmission module, a process rule library and a dynamic scheduling module.

[0163] Among them, the data acquisition and transmission module and the dynamic scheduling module can exchange information. The data acquisition and transmission module is used to receive the external production plan in real time and forward the production plan to the dynamic scheduling module, so that the dynamic scheduling module can schedule the production process of coal-fired power aluminum according to the production plan;

[0164] The process rule library is used to store the process rule requirements in the coal-fired power aluminum production process. The dynamic scheduling module can call the process rule requirements stored in the process rule library. The dynamic scheduling module is used to coordinate the production process of the coal area, power area and ingot section according to the production plan and process rule requirements, and compile the operation plan of the coal area, power area and ingot section;

[0165] The data collection and transmission module is also used to collect the production performance and logistics performance in the production process in real time and forward it to the dynamic scheduling module. The dynamic scheduling module is used to dynamically adjust the operation plan in real time according to the production performance and logistics performance.

[0166] The scheduling strategy subsystem provided in this embodiment receives the production plan of the planning subsystem (MES, manufacturing enterprise production process execution management software, a set of production information management system for the workshop execution layer of manufacturing enterprises) in real time through the data acquisition and transmission module, automatically compiles the planned operations according to the production plan and process rules, and coordinates the planned operations of each section in the coal-fired power aluminum production process, opens up the overall production process, and is highly integrated with the planning subsystem. At the same time, the production performance of the production site subsystem and the logistics performance of the material subsystem are collected through the data acquisition and transmission module to realize intelligent monitoring of the production process, master the material flow information, track and manage the materials in all directions, realize the integration and sharing of data in each link of the production process, and establish a comprehensive production data platform. In addition, the dynamic scheduling module also dynamically adjusts the production operations according to the production performance and logistics performance, optimizes the production rhythm, overcomes the disturbance factors in the production process, and realizes the intelligence and automation of production scheduling.

[0167] In some embodiments, the process rule library is used to store all the constraints in the production process, that is, the process rule requirements. Specifically, the process rule library is a rule characteristic or attribute set in advance based on industry - general guidelines and the special production requirements of the production plant. Operators can maintain the process rule library according to the special production requirements of the plant. The process rule requirements include the process paths, production steps, operation time requirements for each process, temperature requirements for each process, composition requirements for each process, transportation time requirements, equipment requirements, and production event requirements corresponding to different aluminum types. Among them, the production event requirements include events such as stirring and vacuum pumping required during the production process.

[0168] The aluminum types provided in this embodiment, that is, the categories of aluminum, are mainly pure aluminum and aluminum alloys. Among them, aluminum alloys can be further subdivided into multiple series; pure aluminum can be divided into high - purity aluminum, industrial high - purity aluminum, and industrial pure aluminum according to purity: High - purity aluminum: The purity is above 99.99%; Industrial high - purity aluminum: The purity is between 99.7% and 98.8%; Industrial pure aluminum: The purity is below 98.8%. Aluminum alloys are obtained by adding alloying elements to pure aluminum and can be divided into wrought aluminum alloys and cast aluminum alloys according to the processing technology: Wrought aluminum alloys have good plasticity and are suitable for pressure processing. They are divided into four types according to performance and use: anti - rust aluminum (LF), hard aluminum (LY), super - hard aluminum (LC), and forged aluminum (LD); Cast aluminum alloys are divided into four types according to the main alloying elements: aluminum - silicon series (AL - Si), aluminum - copper series (Al - Cu), aluminum - magnesium series (Al - Mg), and aluminum - zinc series (Al - Zn).

[0169] In this embodiment, aluminum alloys can be the following eight series according to their composition: 1XXX series: Industrial pure aluminum, with an aluminum content of not less than 99.00%. For example, 1050, 1060, 1100, etc.; 2XXX series: Aluminum alloys with copper as the main alloying element, with a copper content of about 3 - 5%. For example, 2014, 2A16, 2A02, etc.; 3XXX series: Aluminum alloys with manganese as the main alloying element, with a manganese content between 1.0 - 1.5%. For example, 3003, 3A21, etc.; 4XXX series: Aluminum alloys with silicon as the main alloying element, with a silicon content between 4.5 - 6.0%. For example, 4032, 4A01, etc.; 5XXX series: Aluminum alloys with magnesium as the main alloying element, with a magnesium content between 3 - 5%. For example, 5052, 5A05, etc.; 6XXX series: Aluminum alloys with magnesium and silicon as the main alloying elements, containing magnesium and silicon. For example, 6061, 6063, etc.; 7XXX series: Aluminum alloys with zinc as the main alloying element, rich in zinc element. For example, 7075, etc.; 8XXX series: Aluminum alloys with other elements as the main alloying element, such as 8011, etc.; These aluminum alloys can be widely used in the fields of aviation, construction, automobiles, etc. due to their different compositions and characteristics.

[0170] In this embodiment, for each type of aluminum, corresponding process rule requirements are stored in the process rule library, thereby realizing the definition of all parameters in the process production process and providing basic data support for the plan simulation model, production plan scheduling, dynamic optimization adjustment of the operation plan, and lean assessment analysis. By establishing a refined process rule library, this embodiment provides rule requirements for the production process and improves the reliability of the production scheduling plan.

[0171] In some embodiments, the dynamic scheduling module can determine the process path based on the type of aluminum to be produced and determine the main process flow of the production process. Specifically, in the production process flow, it is necessary to consider the production combination strategies of each process formed by factors such as equipment turnover time, equipment capacity, process and quality requirements, and frequency of tooling equipment replacement. The dynamic scheduling module uses the production combination strategy as a constraint to give the combination and production order of production tasks as the initial value of the operation plan; when optimizing the scheduling plan, the optimization strategies include: optimizing and iterating with the goals of meeting the delivery date, reducing the generation of surplus materials, reducing inventory, reducing the number of equipment replacements, reducing the idle time of bottleneck equipment, and reducing energy consumption.

[0172] Specifically, the dynamic scheduling module combines the actual production situation of the production site subsystem, based on the process rule requirements and optimization strategies of each process, establishes a task allocation mechanism for each process equipment and a task coordination mechanism between upstream and downstream processes, automatically prepares the operation plans for each work station, and conducts a full-process simulation of the entire production process to optimize the scheduling plan, refine the operation time of each work station, reduce waiting time, improve production efficiency, and ensure fine production, completion of production tasks, and smooth logistics.

[0173] Exemplarily, the dynamic scheduling module analyzes the coal-electricity operation according to the coal-electricity plan of the production plan, and combines the process path specified by the process rule requirements of the produced aluminum type and the operating conditions of multiple similar equipment such as aluminum electrolyzers and aluminum-making machines in the production system to automatically select the specific equipment for executing the production plan, automatically prepare the production path of the coal-electricity operation, and conduct simulation calculations on the production start time, production equipment, production end time, transportation time, etc. of each process in the production process to determine the best production path combination; at the same time, it also associates and generates a turnover scheduling plan for logistics.

[0174] Such as Figure 3 As shown, in some embodiments, the dynamic scheduling module includes: a coal-electricity dynamic scheduling module, an electrolytic aluminum dynamic scheduling module, and an ingot casting dynamic scheduling module that cooperate with each other. Among them, the coal-electricity dynamic scheduling module, the electrolytic aluminum dynamic scheduling module, and the ingot casting dynamic scheduling module can interact with the operation plans of each section, enabling each scheduling module to perform cooperative scheduling according to the operation plans of the upstream and / or downstream, that is, when preparing or adjusting the operation plans of each section, they are prepared or adjusted according to the production plan of this section and the operation plans of its upstream and / or downstream.

[0175] Specifically, the aluminum power dynamic scheduling module is used to compile or adjust the power area operation plan according to the production plan; the coal power dynamic scheduling module is used to compile or adjust the coal area operation plan according to the production plan and the power area operation plan; the ingot dynamic scheduling module is used to compile or adjust the ingot operation plan of the ingot section according to the production plan and the power area operation plan, so as to achieve the coordinated scheduling of the coal area, power area and ingot section. Among them, the coal area operation plan includes: coal distribution plan, package distribution plan and coal package turnover plan; the power area operation plan includes: aluminum liquid production plan, aluminum liquid transfer plan and aluminum ingot cutting plan; the ingot operation plan includes: aluminum ingot storage and outbound plan and aluminum production plan.

[0176] The scheduling strategy subsystem of the embodiment of the present invention receives the production plan formulated by the planning subsystem to schedule the production process according to the production plan, wherein the production plan includes an aluminum production plan, an electrolysis plan, a coal-fired power plan and a coal supply plan.

[0177] The coal-fired power dynamic scheduling module compiles the coal distribution plan, the package distribution plan and the coal powder turnover plan according to the coal supply plan in the production plan and the downstream aluminum liquid production plan scheduling requirements, and manages the production and transportation of coal powder to the power area through the coal powder production plan and the coal powder operation plan; the electric aluminum dynamic adjustment module compiles the aluminum liquid production plan, the aluminum liquid transfer plan and the aluminum ingot cutting plan according to the coal-fired power plan and the electrolysis plan in the production plan to control the production of coal powder to aluminum liquid, the operation of aluminum liquid and the cutting of aluminum ingots; the ingot casting dynamic adjustment module compiles the aluminum ingot warehousing and outbound plan and the finished aluminum production plan according to the aluminum ingot cutting plan. This embodiment realizes the integrated scheduling of the production process through the coordinated scheduling of the coal-fired power dynamic scheduling module, the electric aluminum dynamic scheduling module and the ingot casting dynamic scheduling module, and opens up the whole process of material production changes.

[0178] In some embodiments, when the aluminum power dynamic scheduling module adjusts the power area operation plan, the coal-fired power dynamic scheduling module dynamically updates the upstream coal area operation plan in real time according to the power area operation plan, and the ingot casting dynamic scheduling module dynamically updates the downstream ingot casting operation plan in real time according to the power area operation plan, thereby realizing synchronous adjustment of the coal area, power area and ingot casting sections.

[0179] For example, when the downstream aluminum liquid production plan is adjusted, all operation plans in the coal area will be adjusted to the optimal solution accordingly. In this embodiment, the coal-fired power plan and the electrolysis plan are the central links of the integrated scheduling of coal-fired power and aluminum. The upstream and downstream are connected with the three modules of coal-fired power dynamic scheduling, electric aluminum dynamic scheduling, and ingot dynamic scheduling. Every time the coal-fired power plan or the electrolysis plan is adjusted, the upstream coal distribution plan, the distribution package and the coal package turnover plan will be adjusted synchronously, and the downstream aluminum ingot storage and warehousing plan and the aluminum production plan will be updated.

[0180] In some embodiments, after the job plan is prepared, the dynamic scheduling module issues the specific data of the job plan to the designated equipment to control the equipment to execute the specific production plan. The data acquisition and transmission module collects the actual production performance and logistics performance and other actual performance information during the production process, so as to judge the deviation degree of the job plan execution and the influence degree of the event information on the job plan. The data acquisition and transmission module is also used to update the executed job information in a timely manner, and the dynamic scheduling module dynamically adjusts the relevant job plan according to the executed job information. Among them, the actual production performance information refers to all production events, measurement data, relevant reports and other information occurring during the overall production process of coal-electricity-aluminum. The data acquisition and transmission module receives the corresponding event data through data docking with on-site secondary equipment and records and uses the data. The actual production performance information mainly includes actual performance information such as event trigger workstations, time, components, temperature, etc. The logistics actual performance information refers to the data information of the turnover of relevant materials such as locomotives and containers, including key data such as locomotive numbers, container numbers, positions, weights, and times.

[0181] In some embodiments, when there is a deviation between the actual production performance and the production plan, the dynamic scheduling module is also used to adjust the job plan in real time, so as to realize the dynamic adjustment of the production process at any time, optimize the production rhythm, avoid large disturbances in the production process, overcome the disturbance factors in the production process, and perform dynamic management and closed-loop control on the production process. Specifically, the dynamic scheduling module is used to judge the disturbance factors causing the deviation in combination with the process rule library, give early warning prompts for the deviation information, and dynamically adjust the job plan in real time according to the disturbance factors to reduce the deviation and avoid large disturbances in the production process. Among them, the disturbance factors include at least one of time deviation, temperature deviation, quality abnormality, and equipment failure. For example, the time is advanced or delayed, the temperature does not meet the standard, the quality is unqualified, etc.

[0182] Exemplarily, when there is a deviation between the actual coal output performance in the coal area and the coal output plan, correspondingly, the dynamic scheduling module for electrolytic aluminum will dynamically schedule the downstream aluminum liquid production plan into the optimal plan in real time.

[0183] In this embodiment, the scheduling strategy subsystem can classify and analyze the disturbance factors of the job plan in combination with the process rule library, and provide optimization adjustment countermeasures for each disturbance, so that the job plan can be optimized and adjusted, calculate the optimal production plan and update the job plan in real time to cope with various changes and risk problems in the production process.

[0184] In some embodiments, when an abnormal working condition (e.g., equipment failure, etc.) occurs, the data acquisition and transmission module is further configured to receive information about the abnormal working condition, and the dynamic scheduling module is configured to recompile the operation plan according to the information about the abnormal working condition and the executed operation information, so as to realize rescheduling in case of production process anomalies. Exemplarily, for emergency events such as equipment failures, the scheduling policy subsystem supports the scheduler to maintain information about abnormal equipment failures. After the data acquisition and transmission module receives the updated information about abnormal equipment failures from the scheduler, the dynamic scheduling module recompiles the operation plan according to the information about abnormal equipment failures and the executed operation information to cope with emergencies and realize the manual emergency intervention of the scheduler.

[0185] In some embodiments, when the production plan is adjusted, the dynamic scheduling system is further configured to dynamically adjust the operation plans of each section in real time according to the adjusted production plan and the executed operation information, so as to realize the intelligentization of production scheduling. When adjusting the operation plan, the dynamic scheduling module can adjust the operation time and duration, adjust the production process path, and adjust the transportation time. In addition, the dynamic scheduling module can also be used to schedule abnormal production plans (e.g., duplicates).

[0186] As Figure 4 shown, in some embodiments, the scheduling policy subsystem further includes: an overall display and evaluation module. The overall display and evaluation module can interact with the dynamic scheduling module and the data acquisition and transmission module to receive the operation plan compiled by the dynamic scheduling module and the production performance and logistics performance collected by the data acquisition and transmission module. The overall display and evaluation module is configured to dynamically display in real time the operation plans of the coal area, the power area, and the ingot casting section, as well as the production performance and logistics performance of data acquisition, so as to realize the visualization and digitalization of the whole-process production, multi-dimensionally display the operation production process, and at the same time assist in production monitoring, so as to optimize and adjust the operation plan and help solve sudden problems.

[0187] Specifically, the overall display and evaluation module can intuitively display the compiled or adjusted operation plan in the form of a Gantt chart, which is convenient for the scheduler to view, edit, and confirm the operation evolution compiled by the system. In addition, the overall display and evaluation module is also configured to display performance information such as the production performance and logistics performance of the production site subsystem to monitor the production process and master the production rhythm.

[0188] In some embodiments, the overall display and evaluation module is configured to compare the production performance with the production plan to evaluate whether the production plan is reasonable and provide a basis for optimizing the plan adjustment.

[0189] In some embodiments, the overall display and evaluation module is further configured to determine KPI indicators based on production performance and logistics performance analysis, so as to comprehensively evaluate the production process efficiency, output quality, resource utilization rate, environmental protection, etc. In this embodiment, by collecting all key data in the production process and integrating and sorting the data through the overall display and evaluation module for comprehensive evaluation of KPI indicators, it helps to analyze the influencing factors in the production process and diagnose the reasons for problems in production results.

[0190] Specifically, for the coal area, the overall display and evaluation module can statistically analyze data in dimensions such as turnover rate, temperature, time, etc. to evaluate production efficiency; for the power area, the overall display and evaluation module can analyze the production steps of each process in dimensions such as time, aluminum type, process path, composition, temperature, etc. to locate the influencing factors of production; for the entire coal-electricity-aluminum production process, the overall display and evaluation module can statistically analyze the degree of continuity, coal flow rate and temperature curve of the production process to measure the overall production efficiency of the coal-electricity-aluminum plant.

[0191] In this embodiment, the overall display and evaluation module can perform multi-level, multi-perspective, and multi-scenario statistical analysis from point to surface and from single dimension to multi-dimension. It can not only analyze the production data of a single process, but also analyze the entire production process, so as to locate the production shortboards in the production process and put forward continuous improvement suggestions for improving production efficiency.

[0192] This scheduling strategy subsystem can integrate the continuous / intermittent coal-electricity-aluminum production process, break the traditional production and management mode, optimize job scheduling and intelligent scheduling through simulation, improve the green production level, and achieve intelligent prediction, intelligent decision-making and intelligent analysis. Specifically, on the basis of meeting the requirements of the process rule library, the scheduling strategy subsystem can automatically compile and optimize the job plan, changing the traditional on-site scheduling mode, greatly shortening the on-site scheduling time from hours to seconds. In addition, compared with the single goal of manual scheduling, the scheduling strategy subsystem incorporates the process rule library for scheduling, can consider factors such as production sequence, energy consumption, equipment, logistics, etc. and give the optimal combination plan, which is more accurate, comprehensive and intelligent than manual scheduling.

[0193] In the present invention, the scheduling result is displayed through a coal-electricity-aluminum Gantt chart, realizing the visualization and digitalization of the entire production process, multi-dimensionally displaying the job production process, achieving stable processes, smooth interfaces and timely regulation in production, and supporting the continuous, compact, dynamic and orderly operation of the process.

[0194] Such as Figure 4As shown, in some embodiments, the scheduling policy subsystem further includes: a supply and sales policy optimization module, which is used to solve the problem that existing coal-electricity-aluminum integrated enterprises fail to fully consider the fluctuations in the coal market conditions when formulating coal supply and sales policies, lack a judgment basis for adjusting the ratio of internal coal supply to external sales, resulting in the failure to timely adjust the coal supply and sales policies, and thus affecting the production efficiency of the enterprises.

[0195] The supply and sales policy optimization module includes a data acquisition unit, a model construction unit, and a policy generation unit. Among them, the data acquisition unit is used to acquire enterprise production data and financial data; the model construction unit is used to establish a preset break-even model based on marginal profit; the policy generation unit is used to calculate the acquired production data and financial data through the preset break-even model, and determine the production scheduling optimization policy according to the calculation results output by the preset break-even model, so that the enterprise optimizes the production policy according to the production scheduling optimization policy.

[0196] In one implementation manner, the model construction unit is specifically used for:

[0197] Calculate the marginal profit of coal sales and the marginal profit of electricity sales of the enterprise respectively;

[0198] Construct an enterprise marginal profit model based on the calculated marginal profit of coal sales and the marginal profit of electricity sales;

[0199] Determine the preset break-even model under the condition that the marginal profit model maximizes the profit.

[0200] In one implementation manner, the model construction unit is specifically used for: calculating the marginal profit of coal sales according to the following formula:

[0201] The marginal profit of coal sales R1 = (M - Mdc) * (P - Psc)

[0202] Wherein, M represents the total coal volume, Mdc represents the coal volume used for power generation in the power plant, P represents the market coal price, and Psc represents the variable production cost per ton of coal;

[0203] Calculate the marginal profit of electricity sales according to the following formula:

[0204] The marginal profit of electricity sales R2 = (Psw * D - Mdc * Psc - Mdc * Ffd)

[0205] Wherein, Psw represents the on-grid electricity price, D represents the power generation volume, and Ffd represents the variable power generation cost per ton of coal in the power plant.

[0206] Since the output of aluminum products mainly depends on factors such as the process level of electrolysis per unit of electric energy, the level of production equipment, and the natural energy system, etc. However, due to the certainty of the electrolysis process, the output of aluminum products mainly depends on electricity. That is, the marginal profit of selling aluminum is proportional to the marginal profit of selling electricity. Therefore, this solution does not give the calculation method of the marginal profit of selling aluminum in detail for the time being. Instead, it mainly calculates the data related to coal and electricity as examples to illustrate the profit calculation idea;

[0207] In one implementation, the model construction unit is specifically used for: based on the calculated marginal profit of selling coal and the marginal profit of selling electricity, constructing an enterprise marginal profit model:

[0208] Enterprise marginal profit R = marginal profit of selling coal R1 + marginal profit of selling electricity R2 - fixed cost R3 of the coal and electricity company;

[0209] That is, R = (M - Mdc) * (P - Psc) + (Psw * D - Mdc * Psc - Mdc * Ffd) - R3;

[0210] Transform the formula to get:

[0211] Enterprise marginal profit R = market coal price P * (total coal quantity M - power plant coal quantity Mdc) + on-grid electricity price Psw * power generation quantity D - production cost per ton of coal Psc * total coal quantity M - fixed cost R3 of the coal and electricity company..

[0212] In one implementation, the model construction unit is specifically used for: under the condition that the marginal profit model realizes the maximization of profit, determining that there is a proportional relationship between the power generation quantity D and the power plant coal quantity Mdc as: D = 1000MdcQnet / 7bs;

[0213] Where, bs is the standard coal consumption for power supply of the power plant, and Qnet is the calorific value of coal produced by the coal mine;

[0214] Then, under the condition that the marginal profit model realizes the maximization of profit, enterprise marginal profit R = Mdc(1000 * Psw * Qnet / 7bs - P - Ffd) + (P - Psc) * M - R3;

[0215] Under the condition that the marginal profit model realizes the maximization of profit, determining the preset break - even model as △Rdm = (1000 * Psw * Qnet / 7bs - P - Ffd), where △Rdm = 0 is the break - even point of the enterprise.

[0216] In one implementation, the strategy generation unit is specifically used for:

[0217] When the calculation result obtained according to the preset break - even model is △Rdm > 0, then determine the production scheduling strategy as: priority power generation strategy; that is, the coal - electricity - aluminum integrated enterprise supplies coal to the power plant preferentially;

[0218] When the calculation result obtained according to the preset break-even model is △Rdm < 0, the production scheduling strategy is determined as: the priority coal sales strategy; that is, the coal-electricity-aluminum integrated enterprise will give priority to selling coal.

[0219] In one implementation, the data acquisition unit is specifically configured to:

[0220] Obtain the financial data of the enterprise based on the financial system of the enterprise;

[0221] Obtain the production data of the enterprise based on the plant-level monitoring information system, material system, and environmental protection system of the enterprise.

[0222] In one implementation, the data acquisition unit is specifically configured to: obtain the current electricity price, desulfurization agent price, denitration agent price, water intake price, and other material prices based on the financial system of the enterprise.

[0223] In one implementation, the data acquisition unit is specifically configured to: obtain the standard coal consumption for power supply based on the plant-level monitoring information system of the enterprise; obtain the internal transportation cost based on the material system of the enterprise; obtain the desulfurization agent consumption, denitration agent consumption, and water consumption based on the environmental protection system of the enterprise.

[0224] By using the scheduling strategy subsystem provided in this embodiment, the enterprise can use the preset break-even model through the coal-electricity supply and sales and power generation strategy optimization system to calculate the obtained production data and financial data, and determine the production scheduling optimization strategy according to the calculation result output by the preset break-even model, so that the enterprise can optimize the production strategy according to the production scheduling optimization strategy, so that the coal-electricity-aluminum integrated enterprise can scientifically measure the marginal profit of unit coal sales and power generation of the coal-electricity-aluminum integration according to the market conditions and regional characteristics, timely adjust the strategy, create more profits for the enterprise, and realize the maximization of the overall profit of coal sales and power generation. Thus, it avoids the problem that the existing coal-electricity-aluminum integrated enterprises formulate the supply and sales plan uniformly by humans, fail to fully consider the fluctuations in the coal market conditions, lack the judgment basis for adjusting the ratio of internal coal supply to external sales, resulting in the failure to timely adjust the coal supply and sales strategy, and thus affecting the production efficiency of the enterprise.

[0225] In view of the current situation of planned scheduling in the production process of current coal-electricity-aluminum production enterprises, to meet the requirements of various production process flows of coal-electricity-aluminum enterprises, a general and extensible decision support platform is provided for the daily production planning and scheduling problems of coal-electricity-aluminum enterprises. The coal-electricity-aluminum integrated production scheduling system provided in this embodiment, such as Figure 5As shown, it may also include physical hardware function modules and software function modules. The physical hardware function modules include: the PCS layer composed of production equipment, sensors, and controllers (PLC, DCS), an interface management server, a database server, an application layer server, a Web server, client workstations, and a computer network connecting various computer devices, controllers, and sensors.

[0226] The PCS layer (Physical Coding Sublayer) is a key layer in network communication, mainly responsible for data encoding, decoding, and verification to ensure the integrity and accuracy of data during transmission; the Physical Coding Sublayer (PCS) is a technical term located between the coordination sublayer (through GMII) and the Physical Medium Attachment (PMA) sublayer. The PCS layer converts parallel data into serial data and performs 8b / 10b encoding to avoid consecutive 0s or 1s in the data stream, facilitating clock recovery. This encoding method helps reduce the bit error rate during transmission; the PCS layer is also responsible for Cyclic Redundancy Check (CRC) encoding to ensure data integrity and accuracy; in Ethernet 100BASE-T1, the PCS layer connects to the Ethernet controller through the MII interface and is responsible for communication control and the start and stop of data transmission. The Physical Medium Attachment (PMA) is mainly responsible for serialization and deserialization, converting the signal from the PCS layer into a format suitable for physical medium transmission; the interface between the PMA layer and the PCS layer uses the PMA service interface; the Physical Medium Dependent (PMD) sublayer handles optoelectronic / electro-optic conversion, usually implemented using optical modules. In Gigabit Ethernet (1000Base-T), the transmitted data is transferred from the MII to the PCS layer for 5B encoding, then converted into a serial signal by the PMA layer and sent through twisted pairs; the receiving process is similar, and the data is passed to the PCS layer for decoding and verification after passing through the PMA layer; in processor direct connection applications, the delay of the SERDES system needs to be controlled within 20 ns to achieve low-latency data transmission.

[0227] The interface management server is connected to the on-site controller through the network, stores various status information and process data collected on-site in the database after data processing and format conversion, providing a real-time reference basis for the scheduling strategy subsystem; at the same time, it converts the production orders issued by the planning subsystem or the ERP (Enterprise Resource Planning, a management platform based on information technology, providing decision-making operation means for the enterprise decision-making level and employees with a systematic management concept) layer and stores them in the database.

[0228] The database server runs a professional relational database management system and stores the real-time process data, planned scheduling data, and various system configuration data of the production site subsystem in the database.

[0229] The application server is the core component of the entire coal-electricity-aluminum integrated production scheduling system. It mainly runs components such as planning and scheduling methods and real-time scheduling methods. It calls data from the database server as needed and writes production plans and scheduling plans into the database.

[0230] The main task of the Web server is to dynamically publish the results processed by the application server to the Internet and Intranet in the form of Web pages, so that users can display and view them through the browser on the client side.

[0231] Clients are divided into two types: professional clients and thin clients. Professional clients run professional client software on computers to display complex data and graphics, and save certain data on local computers to perform offline data analysis; thin clients run standard browser programs on computers to display and query regular data.

[0232] The data collection process is as follows: the working status and operating parameters of the main production equipment running on site and the process parameters of the production process are pre-processed by the sensor by filtering, buffering, conditioning, amplification, etc. according to different signals, and then the signal is sent to the corresponding sensor and controller (such as PLC, MCU, DSP, DCS, etc.) after photoelectric isolation for real-time control and information uploading.

[0233] The coal-electricity-aluminum integrated production scheduling system of this embodiment executes the corresponding planning program in the computer according to the process route and equipment parameters, and prepares the plan by selecting different planning methods according to the rules of ensuring delivery time, shortest processing time, maximum equipment utilization and ensuring continuous aluminum capacity, and sends the production plan to the production execution controller of the production site subsystem; through the sensors and controllers installed on the equipment of the production site subsystem, the various process parameters, the working status of the main equipment and key parameters in the production process, such as power-on time, ingot casting start time, etc., are monitored in real time, and the abnormal status of the production process is reported to the scheduling strategy subsystem in a timely manner.

[0234] The coal-electricity-aluminum integrated production scheduling system of this embodiment displays various status information of the production process through various screens on the client computer display, mainly to monitor and track the actual execution of the production plan, so that users can understand the production rhythm in time, alarm for serious abnormal situations, realize real-time monitoring of the actual production process, and perform necessary data processing and statistics on various status information.

[0235] The coal-electricity-aluminum integrated production scheduling system in this embodiment executes relevant real-time scheduling programs in a computer according to the actual production line for abnormal situations occurring during the production process and abnormal situations in the execution of the plan. Combining predefined scheduling rules and a process model for online learning, it creates an emergency scheduling plan, can perform real-time scheduling as soon as possible, provides an automatic or semi-automatic dynamic scheduling decision-making plan for schedulers, and quickly restores stable production.

[0236] The software of the coal-electricity-aluminum integrated production scheduling system in this embodiment has an open and distributed architecture. Based on distributed component technology and object-oriented technology, and adopting a multi-layer architecture approach, the main functional modules and algorithms of the coal-electricity-aluminum integrated production scheduling system are deployed in the middle-tier application server in the form of components, thereby providing a general and extensible plan scheduling application that meets various technological processes.

[0237] The coal-electricity-aluminum integrated production scheduling system in this embodiment can simulate the production process and perform online learning. It has established various mathematical models of production equipment and technological processes, can perform online learning and correction on the models, and establishes a specific model library for specific enterprises, specific technological processes, and equipment. After the plan compilation is completed, the plan and the scheduling plan are compared and optimized.

[0238] The software functional modules of the coal-electricity-aluminum integrated production scheduling system in this embodiment, such as Figure 7 shown, include: process definition, graphical interface, plan compilation, simulation, real-time scheduling, model library, algorithm library, rule library, interface management, etc.

[0239] Plan compilation: This module uses a variety of optimization theories and intelligent optimization algorithms to establish mathematical models for the optimal coal-electricity plan, the optimal electrolysis plan, and the aluminum-making batch plan, providing an excellent solution for the plan compilation in the coal-electricity-aluminum industry.

[0240] Simulation includes: The simulation module mainly performs simulations according to the production plans generated by the compilation module and gives corresponding simulation results and performance evaluations. Such as bar charts of equipment utilization rates, Gantt charts, process dynamic simulations, key time parameters, etc. The phased mathematical models in the process dynamic simulation provide various parameter interfaces and can be modified according to the feedback of actual production to make the simulation effect more accurate. The simulation also includes predicting models for the alarm parameters or elimination times of various equipment failures so that the predicted results can fit well with actual production.

[0241] Real-time scheduling includes:

[0242] (1) Real-time monitoring

[0243] Real-time monitoring mainly monitors and tracks the actual execution of the production plan, especially monitors various abnormal situations that occur during the production process, and then feeds back to the scheduling department in an intuitive graphical manner. The real-time monitoring module can feed back the data monitored by the underlying system to the management level, so that the schedulers can timely grasp the production progress and control the abnormalities.

[0244] (2) Dynamic scheduling

[0245] Dynamic scheduling mainly performs real-time processing on the information affecting production obtained from real-time monitoring. With the help of simulation and scheduling rules, it makes practical adjustments to the production plan or re-formulates the production plan. The dynamic scheduling module should provide automatic or semi-automatic real-time scheduling decision-making solutions for workshop managers to assist them in achieving dynamic scheduling.

[0246] Model library: It refers to being composed of various mathematical models related to the main production equipment and process in the coal-electricity-aluminum production process and related to planning and scheduling. By using methods such as statistical regression, parameter identification, data fusion, neural networks, and fuzzy logic, the production, test, experimental data and expert experience are combined and fitted to represent the mutual relationship between each parameter and its influencing factors. The mathematical models in the model library can be learned and corrected online during the actual production process to gradually improve the model accuracy.

[0247] Algorithm library: It refers to different optimization algorithms used in solving problems such as optimal production scheduling. Conventional ones include the Gantt chart method, constructive methods, dynamic programming, branch and bound method, queuing theory method, etc.; artificial intelligence methods, such as simulated annealing, genetic algorithm, tabu search, evolutionary programming, evolutionary strategy, neural network method, Lagrangian relaxation, and chaotic optimization, etc. All kinds of algorithms are encapsulated in the form of components for future upgrading and expansion.

[0248] Rule library: It refers to various expert rules used in production scheduling and real-time scheduling, such as smelting rules, rules for combining scheduling sequences, rules for handling abnormal situations, and so on. The above rules form a rule library in a certain way and can be continuously expanded, updated, and corrected according to the actual situation.

[0249] Interface management involves the transmission of the following information: The downstream data existing between the system and the ERP layer mainly include various equipment processing capacity information, workshop production calendars, contract plans, process cards, processing route sheets, human resources, material inventories, etc.; The upstream data existing between the system and the ERP layer mainly include the completion reports of contract plans, etc., as well as information on corrective suggestions for various production parameters of the production process; The upstream data existing between the system and the PCS layer mainly include real-time information such as various equipment states and production conditions, as well as request information for real-time scheduling; The downstream data existing between the system and the PCS layer mainly include the production plans formulated by the planning and scheduling module and the contingency scheduling plans from the real-time scheduling module. These plans are uniformly managed by the interface module and information exchange is carried out with the PCS layer.

[0250] As Figure 6 shown, the production site subsystem of the integrated coal-electricity-aluminum production scheduling system provided in this embodiment includes: a coal treatment system, a power generation system, a carbon treatment system, a solid-liquid separation system, an aluminum electrolysis system, and a scheduling and monitoring system, realizing pollution-free emissions and integrated joint production of products such as coal, power generation, and electrolytic aluminum. Of course, a natural energy system can also be further introduced into the power generation system and the aluminum electrolysis system, such as a solar-air-energy-wind power generation system, a solar aluminum electrolyzer, and so on.

[0251] In practical applications, the coal treatment system includes: coal supply equipment, such as an intelligent coal feeder; The carbon treatment system includes: a carbon treatment device, a CO2 capturer, and a CO2 decomposer; The solid-liquid separation system includes: a fly ash electrofusion solid-liquid separator; The aluminum electrolysis system includes: a solar aluminum electrolyzer; The power generation system includes: a gas power generation system; The scheduling and monitoring system includes: a remote explosion-proof monitoring center; The carbon treatment device is a solar catalyst, and the power generation system is a gas power generation system.

[0252] In this embodiment, the intelligent coal feeder is connected to the solar catalyst, the solar catalyst is connected to the gas power generation system and a filter, the filter is connected to the CO2 capturer; The gas power generation system is connected to the fly ash electrofusion solid-liquid separator and the solar aluminum electrolyzer, the fly ash electrofusion solid-liquid separator is connected to the solar aluminum electrolyzer, the solar aluminum electrolyzer is connected to the CO2 capturer and the solar-air-energy-wind power generation system, and the CO2 capturer is connected to the CO2 decomposer;

[0253] In this embodiment, the intelligent coal feeder sends pulverized coal into the solar catalyst for CO2 gasification treatment, and after passing through the filter, the combustible gas is filtered out and sent into the gas power generation system for combustion power generation. The flue gas generated by the gas power generation system is sent into the solar catalyst for recycling, and the electricity generated by the gas power generation system is supplied to the solar aluminum electrolyzer to work; The fly ash filtered by the filter is sent to the fly ash electrofusion solid-liquid separator;

[0254] The solar catalytic converter and the solar aluminum electrolyzer generate CO2. Part of the CO2 is captured by the CO2 capturer and sent to the CO2 decomposer, and the separated oxygen is supplied to the power generation system for combustion power generation; the remote explosion-proof monitoring center monitors the safe operation of the device. Among them, the solar catalytic converter is a solar plasma torch catalytic converter, and the catalytic temperature is 900 - 1300 °C.

[0255] The integrated coal-electricity-aluminum production scheduling system provided in this embodiment can also recycle CO2 as a raw material to produce products such as oil, natural gas, methanol, dimethyl ether, olefins, urea, and degradable plastics;

[0256] The solar-air-wind power generation system seamlessly switches the electricity generated by solar energy, air energy, wind energy, and coal power to supply power for the power consumption of each system. The intelligent coal feeder crushes and selects coal and then intelligently measures and transports it to the solar supergravity rotary drum dryer for drying. The fly ash electrofusion solid-liquid separator separates the high-temperature fly ash into solid and liquid. Among them, the liquid iron oxide silicon sodium potassium is sent to the papermaking system to make paper through making fiber filaments, or silicon oxide, iron oxide, sodium oxide, and potassium oxide are extracted separately. The solid is sent to the alumina electrofusion furnace to supply the solar aluminum electrolyzer to produce aluminum ingots, aluminum alloy round ingots, or aluminum alloys. The temperature of the fly ash electrofusion solid-liquid separator is 1550 - 1650 °C. The solar aluminum electrolyzer electrolyzes alumina and aluminum ore powder. The temperature of the solar aluminum electrolyzer is 900 - 1200 °C. The solar water electrolyzer electrolyzes the treated papermaking sewage to produce hydrogen and oxygen. Hydrogen is recycled to produce products such as oil, natural gas, methanol, dimethyl ether, olefins, and degradable plastics. The CO2 capturer captures the carbon dioxide filtered by the filter. Part of it is recycled to produce products such as oil, natural gas, methanol, dimethyl ether, olefins, and degradable plastics, and part is sent to the CO2 decomposer for separation. The CO2 decomposer separates CO2 to produce carbon black and oxygen. The remote explosion-proof monitoring center conducts on-line remote explosion protection on the temperature, pressure, gaseous components, etc. of each system in the production site subsystem.

[0257] Furthermore, the production site subsystem further includes: a solar supergravity rotary drum dryer, an ultra-special boiler power generation system, an alumina electrofusion furnace, and a solar water electrolyzer;

[0258] The intelligent coal feeder is connected to the solar supergravity rotary drum dryer, the solar supergravity rotary drum dryer is connected to the filter, the ultra-special boiler power generation system, and the filter, the filter is connected to the CO2 capturer, the ultra-special boiler power generation system is connected to the fly ash electrofusion solid-liquid separator and the solar aluminum electrolyzer, the fly ash electrofusion solid-liquid separator is connected to the alumina electrofusion furnace and the solar water electrolyzer, the alumina electrofusion furnace is connected to the solar aluminum electrolyzer, the solar aluminum electrolyzer is connected to the CO2 capturer and the solar-air-wind power generation system, and the CO2 capturer is connected to the CO2 decomposer;

[0259] The intelligent coal feeder crushes and selects the coal, and then intelligently measures and conveys it to the solar supergravity rotary drum dryer. The solar supergravity rotary drum dryer sends the dehydrated coal, which has removed the moisture and volatile components in the pulverized coal through heat treatment, to the ultra-supercritical boiler power generation system. The solar supergravity rotary drum dryer filters the mixed gas generated by the water vapor and volatile components produced by the heat treatment of the coal through a filter. The combustible gas is sent to the ultra-supercritical boiler power generation system for combustion and power generation, and the remaining gas is sent to the CO2 capturer to capture CO2;

[0260] The ultra-supercritical boiler power generation system is connected to the fly ash electrofusion solid-liquid separator and the solar aluminum electrolyzer. The fly ash electrofusion solid-liquid separator is connected to the alumina capacitor and the solar water electrolyzer. The oxygen obtained by electrolyzing the solar water electrolyzer is sent to the O2 tank, and the hydrogen obtained is sent to the H2 tank; The alumina capacitor is connected to the solar aluminum electrolyzer. The solar aluminum electrolyzer is connected to the CO2 capturer and the solar air energy and wind energy power generation system. The CO2 capturer is connected to the CO2 decomposer. The oxygen obtained by the CO2 decomposer is sent to the O2 tank, and the carbon black obtained is sent to the carbon black tank.

[0261] The solar air energy and wind energy power generation system seamlessly switches the electricity generated by solar energy, air energy, wind energy, and coal power to supply the power for the operation of each subsystem.

[0262] Intelligent coal feeder: After pulverizing and selecting coal, it intelligently measures and conveys the coal to a solar supergravity rotary drum dryer for drying. The solar supergravity rotary drum dryer conveys the dehydrated coal, which has removed moisture and volatile components (such as gases like nitrogen, hydrogen, methane, carbon monoxide, carbon dioxide, and hydrogen sulfide, etc.) from the pulverized coal through heat treatment, to a ultra-supercritical boiler power generation system for combustion power generation. The mixed gas generated by the water vapor and volatile components during coal heat treatment is filtered by a filter. The combustible gases (hydrogen, methane, carbon monoxide) are sent to the ultra-supercritical boiler power generation system for combustion power generation; preferably, the heat treatment temperature of the solar supergravity rotary drum dryer is 150 - 500 °C. The ultra-supercritical boiler power generation system conducts pure oxygen combustion power generation on the dehydrated coal and combustible gases (hydrogen, methane, carbon monoxide). The fly ash is sent to a fly ash electrofusion solid-liquid separator for separation, and the flue gas is 100% recycled and sent to the solar supergravity rotary drum dryer for heat treatment of the pulverized coal; preferably, the pure oxygen combustion temperature of the ultra-supercritical boiler is 1550 - 1800 °C. The fly ash electrofusion solid-liquid separator separates the high-temperature fly ash into solid and liquid. The liquid iron oxide silicon sodium potassium is sent to the papermaking system to make paper through making fiber filaments, or silicon oxide, iron oxide, sodium oxide, and potassium oxide are separately extracted. The solid is sent to an alumina electrofusion device for the solar aluminum electrolyzer to produce aluminum alloy; preferably, the temperature of the fly ash electrofusion solid-liquid separator is 1550 - 1650 °C. The solar aluminum electrolyzer electrolyzes alumina and aluminum ore powder; preferably, the temperature of the solar aluminum electrolyzer is 900 - 1200 °C. The solar water electrolyzer electrolyzes the treated papermaking sewage to produce hydrogen and oxygen. The hydrogen is recycled to produce products such as oil, natural gas, methanol, dimethyl ether, olefins, and degradable plastics. The CO2 trap captures the carbon dioxide filtered by the filter. A part of it is recycled to produce products such as oil, natural gas, methanol, dimethyl ether, olefins, and degradable plastics, and a part is sent to the CO2 decomposer for separation. The CO2 decomposer separates CO2 to produce carbon black and oxygen. The remote explosion-proof monitoring center conducts online remote explosion-proof monitoring and management of the temperature, pressure, gaseous components, etc. of each system. The oxygen produced by the solar water electrolyzer and the CO2 decomposer is supplied to the ultra-supercritical boiler for pure oxygen combustion.

[0263] Example 2

[0264] This embodiment provides a method for integrated production scheduling of coal-electricity-aluminum, which is applied to the integrated production scheduling system of Example 1 and can be specifically implemented on at least one of terminal devices such as mobile phones, tablet computers, personal computers (PCs), workstations, servers, and any devices that can run the application program of the aforementioned integrated production scheduling system of coal-electricity-aluminum. Or, the execution entity of this method can also be the enterprise's existing working systems such as ERP (Enterprise Resource Planning) system, MES (Manufacturing Execution System), financial system, statistical system, and security system of the enterprise, or the collaboration and interconnection between various systems, such as the integrated production scheduling system of coal-electricity-aluminum, etc.

[0265] As Figure 8 shown, the method specifically includes the following steps:

[0266] S101: Receive the production plan of coal - power - aluminum in real time;

[0267] S102: According to the production plan, combine with the process rule requirements to conduct collaborative scheduling on the production processes of the coal area, power area, and ingot section, and compile the operation plans for the coal area, power area, and ingot section;

[0268] S103: Collect the production performance, logistics performance, abnormal working conditions, and market data in the production process in real time;

[0269] S104: According to the production performance, logistics performance, abnormal working conditions, market data, and process rule requirements, dynamically adjust the operation plans of the coal area, power area, and ingot section in real time;

[0270] S105: Use a preset break - even model to calculate the adjusted operation plan with production data and financial data;

[0271] S106: According to the calculation results output by the preset break - even model, determine the production scheduling optimization strategy, optimize the coal - power supply and sales and power generation strategies, and realize the optimization of the supply and sales strategies of coal, electricity, and aluminum products;

[0272] Among them, the production plan includes coal - power plan, electrolysis plan, aluminum production plan, etc.

[0273] After receiving the production plan, according to the production plan and process rule requirements, compile the operation plans for the three sections of coal - power, power - aluminum, and ingot, and conduct dynamic simulation on the operation plans of the entire process of coal - power - aluminum production, so that the operation plans of each section are coordinated and matched with each other. Specifically, through the coal - power dynamic scheduling module, power - aluminum dynamic scheduling module, and ingot dynamic scheduling module, respectively simulate the production processes of the coal - power interface, power - aluminum interface, and ingot interface to optimize the operation plans of each section, so as to meet the delivery date, reduce the generation of surplus materials, reduce inventory, reduce the number of equipment replacements, reduce the idle time of bottleneck equipment, and reduce energy consumption.

[0274] After the operation plan is compiled, the operation plan is displayed in the Gantt chart and sent to the production site subsystem. During the production process, the production performance of the production site subsystem and the logistics performance of the material subsystem are collected in real time to monitor the production site subsystem for anomalies based on the production performance and logistics performance. When anomalies occur at the production site, such as quality anomalies, time deviations, temperature deviations, and equipment failures, the operation plan is dynamically adjusted according to the production performance and logistics performance, thereby optimizing the scheduling plan, optimizing the production rhythm, and overcoming the disturbing factors in the production process.

[0275] Specifically, when monitoring the production site subsystem for anomalies, the Gantt chart (including: coal-electricity Gantt chart, electricity-aluminum Gantt chart, ingot-casting Gantt chart) can be compared with the production performance and logistics performance, and the operation time, operation duration, transportation time, etc. of each work station are compared. If a time deviation occurs, the operation plan is dynamically adjusted. It is also possible to compare the production performance, logistics performance with the production plan and process rule requirements. If anomalies such as quality anomalies and temperature deviations occur, the operation plan is dynamically adjusted. The Gantt chart is also known as the bar chart or strip chart, which shows the internal relationship between the project, progress, and other time-related system progress over time through the bar chart.

[0276] In some embodiments, it is also possible to evaluate the production plan by comparing the production plan with the production performance, and judge whether the production plan is reasonable, providing a basis for optimizing the adjustment of the production plan.

[0277] In some embodiments, when simulating and optimizing the entire coal-electricity-aluminum production process to compile or adjust the operation plan, dynamic simulation optimization can be performed according to the production plan, process rule library, and simulation parameter table.

[0278] Among them, the simulation parameter table refers to the relevant parameters of the simulation model extracted through the analysis of the actual production process of the factory, including: equipment information (including the quantity, type, and working capacity of equipment such as power generation systems, aluminum electrolyzers, aluminum-making machines, etc.), process paths, production capacity (the production capacity and working limitations of each equipment, such as the pulling speed of the aluminum-making machine, the processing cycle of the converter, etc.), material flow (including the transportation of molten aluminum between different processes, such as the generation law of locomotive transportation tasks), and time parameters (including the operation time, waiting time, and possible delays of each process). The dispatcher can configure the parameters of the simulation parameter table according to the historical actual production process.

[0279] After the operation plan is determined, the turnover scheduling plans for locomotive operation, power consumption, and coal packages are generated simultaneously to achieve logistics support such as locomotive dispatching in the actual production process. After all the operation plan and turnover scheduling plans are generated, they are issued to the actual production site subsystem for execution, and the production site subsystem conducts production according to the operation plan and turnover scheduling plan. However, deviations may occur in the specific production process. Therefore, during the production process, it is necessary to monitor the production performance, logistics performance, and abnormal working conditions in real time. When deviations and abnormal working conditions occur, the operation plan is adjusted dynamically in real time to optimize the scheduling plan according to the actual production situation.

[0280] Furthermore, each system or subsystem in this embodiment implements a closed-loop combined cycle to achieve ultra-clean emissions of various pollutants. Specifically, the production site subsystem described above is used to realize the integrated production scheduling process of coal, electricity, and aluminum, including the following steps:

[0281] 1) Turn on the switches of each physical device or apparatus, and the remote explosion-proof monitoring center monitors the temperature, gas composition, and pressure values of each device.

[0282] 2) The intelligent coal feeder measures and sends coal into the solar catalytic converter. The solar catalytic converter gasifies CO2 into combustible gas mainly composed of CO, and the combustible gas is sent to the gas power generation system for combustion and power generation, generating flue gas and fly ash; or the intelligent coal feeder measures and sends coal into the solar supergravity rotary drum dryer. The solar rotary drum dryer sends the heat-treated dehydrated coal to the ultra-super boiler gas-electricity system for combustion and power generation, generating flue gas and fly ash; the mixed gas generated by the water vapor and volatile components during coal heat treatment is filtered by a filter, and the combustible gas (hydrogen, methane, carbon monoxide) is sent to the ultra-super boiler power generation system for combustion and power generation.

[0283] 3) The gas power generation system sends the flue gas into the solar catalytic converter, and the fly ash is sent to the fly ash electrofusion solid-liquid separator. The electricity generated by combustion is supplied to other devices, and the heat obtained from combustion is supplied to the solar catalytic converter; or the ultra-super boiler power generation system sends the flue gas into the solar supergravity rotary drum dryer, and the fly ash is sent to the fly ash electrofusion solid-liquid separator. The electricity generated by combustion is supplied to other devices, and the heat obtained from combustion is supplied to the solar catalytic converter.

[0284] 4) The mixed gas output by the solar catalytic converter is filtered by a filter to obtain combustible gas and other gases. The combustible gas is sent to the gas power generation system for combustion reaction, and the other gases are sent to the CO2 capture device to capture CO2; a part of the captured CO2 undergoes carbon-oxygen separation in the CO2 decomposer to generate carbon black and oxygen, and the oxygen is recycled for use in the power generation system.

[0285] 5) The fly ash electro-fusion solid-liquid separator extracts silicon oxide and alumina from fly ash, and the remaining part is used for papermaking. The sewage generated from papermaking is ionized to produce H2 and O2. The O2 is recycled for the power generation system, and the H2 is recycled to react with the uncaught CO2 before to prepare energy substances such as oil, natural gas, methanol, olefins, and degradable plastics; alumina and bauxite powder react with carbon and are electrolyzed under the action of electricity to produce aluminum, which can be used to manufacture aluminum ingots, aluminum alloy round ingots or aluminum alloys, and the generated CO2 is captured and then processed;

[0286] For example, the solar supergravity rotary drum dryer may include a pulverized coal inlet, a flue gas delivery inlet, a solar supergravity rotary drum dryer rotating shaft, a solar supergravity rotary drum drying chamber, a solar supergravity rotary drum drying chamber, a solar supergravity rotary drum drying chamber, a dehydrated coal outlet, a mixed gas outlet, a remote explosion-proof monitor, a remote explosion-proof monitor, and a remote explosion-proof monitor, etc.; the solar supergravity rotary drum drying chambers are connected in sequence; the intelligent coal feeder is connected to the pulverized coal inlet, the ultra-special boiler power generation system is connected to the flue gas delivery inlet, the dehydrated coal outlet is connected to the ultra-special boiler power generation system, and the mixed gas outlet is connected to the filter; the pulverized coal inlet, the flue gas delivery inlet, the dehydrated coal outlet, and the mixed gas outlet are connected to the solar supergravity rotary drum drying chamber, and the solar supergravity rotary drum dryer rotating shaft drives the solar rotary drum drying chamber to rotate.

[0287] During use, first turn on the power switch of the solar supergravity rotary drum dryer drum shaft; then separately turn on the switches of the pulverized coal inlet and the flue gas delivery inlet, and send the coal slurry and high-temperature flue gas into the solar supergravity rotary drum drying chamber for rapid catalysis. After continuous drying in the solar supergravity rotary drum drying chamber and the solar supergravity rotary drum drying chamber, the dehydrated coal is sent from the dehydrated coal outlet to the ultra-special boiler power generation system for combustion power generation, and the generated mixed gas is sent through the mixed gas outlet to the filter for filtration treatment; finally, turn on the power switches of the remote explosion-proof monitor, the remote explosion-proof monitor, and the remote explosion-proof monitor to online monitor the temperature, pressure, and gas component content of each drying chamber; in this embodiment, the drying temperature of the solar supergravity rotary drum dryer is preferably 150 - 500 °C.

[0288] The embodiments described above are merely illustrative. The units described as separation components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed to multiple network units. Some or all of the modules can be selected according to actual needs to achieve the purpose of the solution of this embodiment. Those of ordinary skill in the art can understand and implement it without creative labor.

[0289] Through the description of the above embodiments, those skilled in the art can clearly understand that each embodiment can be implemented by means of software plus a necessary general hardware platform, and of course, it can also be implemented by hardware. Based on such an understanding, the essence of the above technical solution, or the part that contributes to the prior art, can be embodied in the form of a software product. This computer software product can be stored in a computer-readable storage medium, such as ROM / RAM, magnetic disk, optical disk, etc., and includes several instructions for causing a computer device (which can be a personal computer, a server, or a network device, etc.) to execute the methods of each embodiment or some parts of the embodiments.

[0290] In addition, it should be noted that if this solution uses descriptions such as modules, components, parts, or units, it should be understood in a broad sense in combination with the context. It can be hardware, software, or a functional part with a combination or association of software and hardware; if descriptions such as connection, electrical connection, electrical connection, transmission, interaction, etc. are used, they should also be understood in a broad sense in combination with the context. It can be a direct physical connection, an indirect connection, a direct or indirect connection of signals or electricity, or a direct or indirect connection with a combination or association of physical and electrical signals; these description methods are all generalizations or abstractions for the purpose of concise, complete, and comprehensive description, and should not be regarded as a restrictive understanding of this solution.

[0291] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A coal-electricity-aluminum integrated production scheduling system, characterized in that: include: A dispatching strategy subsystem and a production site subsystem, a planning subsystem, a financial subsystem, a plant-level monitoring subsystem, a material subsystem, an environmental protection subsystem and a fuel transportation subsystem respectively connected to the dispatching strategy subsystem; The production site subsystem sends the working status and operating parameters of the production equipment and the process parameters of the production process to the controller through sensors, and the controller performs real-time control and information processing and sends it to the scheduling strategy subsystem; The planning subsystem is used to receive or formulate production plans, compile or adjust the operation plans of each section, exchange the operation plans of each section, compile the operation plans of each workstation, dynamically adjust the operation plans in real time, update the downstream operation plans, schedule abnormal production plans, and send them to the scheduling strategy subsystem; The financial subsystem is used to collect statistics on current electricity prices, desulfurization agent prices, denitrification agent prices, water prices and other material prices, and send the acquired financial data to the scheduling strategy subsystem; The plant-level monitoring subsystem is used to obtain power supply standard coal consumption data and send the obtained power supply standard coal consumption to the dispatching strategy subsystem; The material subsystem is used to obtain internal transportation cost data and send the obtained internal transportation cost data to the scheduling strategy subsystem; The environmental protection subsystem is used to obtain desulfurization agent consumption, denitrification agent consumption and water consumption, and send the obtained data to the scheduling strategy subsystem; The fuel transportation subsystem is used to obtain coal calorific value data and coal consumption data, and send the obtained data to the scheduling strategy subsystem; The scheduling strategy subsystem receives the production plan and operation plan of the planning subsystem, schedules the production process, calculates the acquired production data and financial data, determines the production scheduling optimization strategy according to the calculation results, and optimizes the production scheduling.

2. The coal-electricity-aluminum integrated production scheduling system according to claim 1 is characterized by: The preparation or adjustment of the operation plan of each section includes: preparing or adjusting the operation plan of the power section, preparing or adjusting the coal section operation plan of the coal section, and preparing or adjusting the ingot section ingot operation plan, so as to realize the coordinated scheduling of the upstream and downstream processes of the coal section, the power section and the ingot section; The coal area operation plan includes: coal distribution plan, coal bag distribution plan and coal bag turnover plan; The electrical area operation plan includes: aluminum liquid production plan, aluminum liquid transfer plan and aluminum ingot cutting plan; The ingot casting operation plan includes: an aluminum ingot storage and out-of-warehouse plan and an aluminum production plan; The updating of the downstream operation plan includes: synchronous adjustment of the coal area, power area and ingot casting area; The scheduling strategy subsystem includes: a data acquisition and transmission module, a process rule library and a dynamic scheduling module; The data acquisition and transmission module forwards the real-time received production plan to the dynamic scheduling module by exchanging information with the dynamic scheduling module, so that the dynamic scheduling module can schedule the production process of coal-fired power aluminum according to the production plan; The process rule library is used to store the process rule requirements in the coal-fired power aluminum production process; The dynamic scheduling module retrieves the process rule requirements, and coordinates the production processes of the coal area, power area and ingot casting section according to the production plan and the process rule requirements, and prepares the operation plans of the coal area, power area and ingot casting section.

3. The coal-electricity-aluminum integrated production scheduling system according to claim 2 is characterized by: The data collection and transmission module is also used to collect the actual production performance and logistics performance in the production process in real time and forward them to the dynamic scheduling module, and the dynamic scheduling module dynamically adjusts the operation plan in real time according to the actual production performance and logistics performance; The process rule library is also used to store constraints in the production process; The dynamic scheduling module determines the process path based on the type of aluminum and determines the process flow of the production process; The dynamic scheduling module combines the actual production situation of the production site subsystem, establishes the equipment task allocation mechanism of each process and the task coordination mechanism of the upstream and downstream processes based on the process rule requirements and optimization strategies of each process, automatically compiles the operation plan of each workstation, and performs full-process simulation of the entire production process; The dynamic scheduling module includes: a coal-electricity dynamic scheduling module, an aluminum-electricity dynamic scheduling module and an ingot casting dynamic scheduling module that coordinate with each other; The aluminum power dynamic scheduling module is used to compile or adjust the power zone operation plan according to the production plan; The coal-electricity dynamic dispatch module is used to compile or adjust the coal area operation plan of the coal area according to the production plan and the power area operation plan; The ingot casting dynamic scheduling module is used to prepare or adjust the ingot casting operation plan of the ingot casting section according to the production plan and the power zone operation plan; Among them, the coal area operation plan includes: coal distribution plan, coal bag distribution plan and coal bag turnover plan; the power area operation plan includes: aluminum liquid production plan, aluminum liquid transfer plan and aluminum ingot cutting plan; the ingot casting operation plan includes: aluminum ingot warehousing and aluminum production plan.

4. The coal-electricity-aluminum integrated production scheduling system according to claim 3 is characterized by: The production plan includes an aluminum production plan, an electrolysis plan, a coal-fired power generation plan and a coal supply plan; When the aluminum power dynamic scheduling module adjusts the power area operation plan, the coal-electricity dynamic scheduling module dynamically updates the coal area operation plan in real time according to the power area operation plan, and the ingot casting dynamic scheduling module dynamically updates the ingot casting operation plan in real time according to the power area operation plan, thereby realizing the synchronous adjustment of the coal area, power area and ingot casting sections; The dynamic scheduling module sends the specific data of the operation plan to the equipment to control the equipment to execute the production plan. The data acquisition and transmission module collects production performance and logistics performance information during the production process, and determines the degree of deviation from the operation plan execution and the degree of impact of event information on the operation plan; The data collection and transmission module is also used to timely update the information of the executed jobs, and the dynamic scheduling module dynamically adjusts the relevant job plans according to the information of the executed jobs; The dynamic scheduling module is also used to adjust the operation plan in real time; The scheduling strategy subsystem combines the process rule library to classify and analyze the disturbance factors of the operation plan, and provides optimization and adjustment strategies for each disturbance; The data acquisition and transmission module is also used to receive abnormal working condition information, and the dynamic scheduling module is used to recompile the operation plan according to the abnormal working condition information and the information of the executed operation, so as to realize the rescheduling of production when the production process is abnormal; The dynamic scheduling system is also used to dynamically adjust the operation plan of each section in real time according to the adjusted production plan and the information of the executed operation, so as to realize the intelligent production scheduling.

5. The coal-electricity-aluminum integrated production scheduling system according to claim 4 is characterized by: The scheduling strategy subsystem also includes: an overall display and evaluation module; The overall display and evaluation module exchanges information with the dynamic scheduling module and the data acquisition and transmission module, and receives the operation plan compiled by the dynamic scheduling module and the production performance and logistics performance collected by the data acquisition and transmission module; The overall display and evaluation module is used to dynamically display the operation plan of the coal area, power area, and ingot casting area in real time, as well as data collection, production performance, and logistics performance; The overall display and evaluation module is used to compare production performance with production plan; The overall display and evaluation module is also used to determine KPI indicators based on production performance and logistics performance analysis; The scheduling strategy subsystem also includes: a supply and marketing strategy optimization module; The supply and marketing strategy optimization module includes: a data acquisition unit, a model building unit and a strategy generation unit; The data acquisition unit is used to acquire production data and financial data; The model building unit is used to establish a preset break-even model based on marginal profit; The strategy generation unit is used to calculate the acquired production data and financial data through the preset break-even model, and determine the production scheduling optimization strategy according to the calculation result output by the preset break-even model.

6. The coal-electricity-aluminum integrated production scheduling system according to claim 5 is characterized by: The preset break-even model is established based on marginal profit, including: Calculate the marginal profit of the enterprise from selling coal and the marginal profit from selling electricity respectively; Based on the calculated marginal profit of coal sales and marginal profit of electricity sales, construct the marginal profit model of the enterprise; Under the condition that the marginal profit model achieves profit maximization, determining a preset break-even model; The production scheduling optimization strategy includes: When the calculation result obtained according to the preset break-even model is greater than 0, the production scheduling strategy is determined as: priority power generation strategy; When the calculation result obtained according to the preset break-even model is less than 0, the production scheduling strategy is determined as: coal selling priority strategy; The obtaining of enterprise production data and financial data includes: Based on the financial system of the enterprise, obtaining the financial data of the enterprise; Based on the factory-level monitoring information system, material system and environmental protection system of the enterprise, obtaining the production data of the enterprise; The financial data include: current electricity price, desulfurization agent price, denitrification agent price, water price and other material prices; The production data include: standard coal consumption for power supply, internal transportation costs, desulfurization agent consumption, denitrification agent consumption and water consumption.

7. The coal-electricity-aluminum integrated production scheduling system according to claim 1 further comprises: Physical hardware function module and software function module, characterized by: The physical hardware functional modules include: a PCS layer consisting of production equipment, sensors, and controllers, a service layer consisting of an interface management server, a database server, an application layer server, and a Web server, a user layer consisting of a client, a computer device, and a workstation, and a network layer consisting of a computer network and a communication network connecting various computer devices, controllers, and sensors; The sensor filters, buffers, conditions, and amplifies different signals of the working status and operating parameters of the production equipment and the process parameters of the production process, and sends them to the controller of the production site subsystem after photoelectric isolation; The controller is used for real-time control and information processing and uploading; The interface management server is connected to the controller of the production site subsystem through the network, processes and converts the status information and process data collected by the production site subsystem, stores them in the database to provide a basis for the scheduling strategy subsystem, and converts the production orders of the planning subsystem and stores them in the database; The database server runs a relational database management system to store the real-time process data and planning data of the production site subsystem and various system configuration data; The application server runs the software components of the planning arrangement method and the real-time scheduling method, calls the data in the database server as needed, and writes the production plan and scheduling plan into the database; The Web server publishes the results processed by the application server to the Internet and Intranet in the form of Web pages, so that users can display and view them through browsers on the client side; The client includes a professional client and a thin client.

8. The coal-electricity-aluminum integrated production scheduling system according to claim 7 is characterized by: The production equipment includes: a coal processing system, a power generation system, a carbon processing system, a solid-liquid separation system, an aluminum electrolysis system and a dispatching and monitoring system; The coal processing system comprises: coal supply equipment; The carbon treatment system includes: a carbon treatment device, a CO2 capture device, and a CO2 decomposer; The solid-liquid separation system comprises: a fly ash electromelting solid-liquid separator; The aluminum electrolysis system comprises: a solar aluminum electrolyzer; The power generation system comprises: a gas power generation system; The dispatch monitoring system comprises: a remote explosion-proof monitoring center; The carbon treatment device includes: a solar catalyst; The coal supply equipment is connected to the solar catalyst, the solar catalyst is connected to the gas power generation system and the filter, and the filter is connected to the CO2 collector; the gas power generation system is connected to the fly ash electro-melting solid-liquid separator and the solar aluminum electrolyzer, the fly ash electro-melting solid-liquid separator is connected to the solar aluminum electrolyzer, the solar aluminum electrolyzer is connected to the CO2 collector and the solar air-energy wind power generation system, and the CO2 collector is connected to the CO2 decomposer; The production equipment also includes: a solar ultra-gravity drum dryer, a super boiler power generation system, an alumina electromelter, and a solar water electrolyzer.

9. The coal-electricity-aluminum integrated production scheduling system according to claim 8 is characterized by: The software functional modules include: process definition, graphical interface, planning, simulation, real-time scheduling, model library, algorithm library, rule library and interface management; The simulation includes: Carry out simulation according to the production plan and give corresponding simulation results and performance evaluation; Provide a prediction model for the alarm parameters or elimination time of equipment failure; The real-time scheduling includes: real-time monitoring and dynamic scheduling; The real-time monitoring monitors and tracks the actual execution of the production plan and feeds back the monitored data to the management level so that the dispatchers can timely grasp the production progress and control the abnormalities; The dynamic scheduling processes the information that affects production obtained through real-time monitoring in real time, and makes practical adjustments to the production plan or recompiles the production plan with the help of simulation and scheduling rules; The model library includes: various mathematical models related to planning and scheduling in the production equipment and process of coal-fired aluminum production, using statistical regression, parameter identification, data fusion, neural network, fuzzy logic methods to combine production, test, experimental data and expert experience to characterize the relationship between various parameters and their influencing factors; The algorithm library includes: optimization algorithms and artificial intelligence algorithms, and the algorithms are packaged in the form of components; The rule base includes: expert rules used in production planning and real-time scheduling; The interface management includes: the transmission of information between systems and layers.

10. A coal-electricity-aluminum integrated production scheduling method, used in the coal-electricity-aluminum integrated production scheduling system according to any one of claims 1 to 9, characterized in that: Receive coal-fired power aluminum production plans in real time; According to the production plan, combined with the process rules, the production processes of the coal area, the power area and the ingot casting section are coordinated and dispatched, and the operation plans of the coal area, the power area and the ingot casting section are prepared; Collect production performance, logistics performance, abnormal conditions and market data in real time during the production process; According to the production performance, logistics performance, abnormal working conditions and market data and process rule requirements, the operation plan of the coal area, power area and ingot casting area is adjusted dynamically in real time; Calculate the adjusted operation plan, production data and financial data using the preset break-even model; According to the calculation results of the preset break-even model output, the production scheduling optimization strategy is determined to optimize the coal-electricity supply and marketing and power generation strategies; The production plan includes: coal power plan, electrolysis plan, and aluminum production plan; The market data include: market coal price, on-grid electricity price, and fixed costs of coal-fired power companies.

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