Cement process optimization method and equipment for multi-industry symbiotic zero-carbon park

Abstract

The invention provides a cement process optimization method and equipment for a multi-industry symbiotic zero-carbon park, and relates to the technical field of cement industry, system optimization and zero-carbon park planning, and the method comprises the steps: constructing a multi-process technical information database which covers the whole process of cement production and covers traditional processes, emerging and green low-carbon technologies; on the basis, a cement process operation system for cross-industry resource collaboration is constructed, a process main flow module, a cross-industry collaboration interface module, a resource adaptation module and a technical optimization model module are integrated, and alternative crude fuel, mixed materials, waste heat and carbon resources from the industries of steel, electric power, chemical engineering and the like are introduced; a multi-type collaborative process unit is butted, process adaptive configuration is realized, and the technical optimization model module realizes process technology optimization and system configuration optimization by taking energy conservation, carbon reduction, pollution reduction and cost control as targets under the constraints of the process and the like. According to the invention, energy consumption, carbon emission and pollutant emission of the cement industry in a zero-carbon park scene are effectively controlled.

Description

Technical Field

[0001] This application relates to the fields of cement industry, system optimization and zero-carbon park planning technology, and in particular to a cement process optimization method and equipment for multi-industry symbiotic zero-carbon parks. Background Technology

[0002] Traditional industrial parks generally suffer from high energy consumption, large carbon emissions, and low resource utilization efficiency. In particular, in the construction of zero-carbon parks with multiple industries coexisting, existing low-carbon technologies lack cross-industry resource complementarity and collaborative optimization mechanisms, making it difficult to build a deeply interconnected low-carbon ecosystem. This has become a key challenge for the large-scale development of zero-carbon parks.

[0003] The cement industry, as a fundamental sector of the national economy, is also a high-energy-consuming process industry with a massive production scale and prominent energy consumption and carbon emission intensity. Its production process spans multiple stages, including raw material preparation, clinker calcination, and cement grinding, with significant differences in energy consumption and emission characteristics at each stage. Although the industry has undertaken various energy-saving and emission-reduction attempts, these have mostly focused on upgrading single technologies, lacking a systematic integration approach across the entire process. Furthermore, in the scenario of zero-carbon industrial parks where multiple industries coexist, comprehensive synergy between cement production and other industries within the park in terms of energy, materials, and information has not been achieved. There is also no unified assessment and intelligent scheduling of carbon emissions, pollutant emissions, and resource utilization efficiency throughout the cement process. This makes it difficult for the green transformation of the cement industry to deeply integrate with the multi-industry collaborative carbon reduction goals of zero-carbon industrial parks.

[0004] Therefore, there is an urgent need to develop a suitable cement process system optimization method for the scenario of zero-carbon parks with multiple industries coexisting. By optimizing the entire process technology and system configuration, we can achieve carbon reduction and emission reduction in the cement industry, promote the coordinated carbon reduction of multiple industries in the park, and help build a low-carbon ecosystem for zero-carbon parks. Summary of the Invention

[0005] This application aims to at least partially address one of the technical problems in the related art.

[0006] Therefore, the first objective of this application is to propose a cement process optimization method for multi-industry symbiotic zero-carbon industrial parks, which solves the problems of high energy consumption, high carbon emissions and high pollutant emissions in the existing cement industry, and maximizes energy utilization efficiency and improves environmental benefits.

[0007] The second objective of this application is to propose a computer device.

[0008] To achieve the above objectives, the first aspect of this application proposes a cement process optimization method for multi-industry symbiotic zero-carbon industrial parks, comprising: Collect various production technology data involved in cement production processes and construct a multi-process technology information database; Based on a technical information database, and considering the synergistic utilization of cross-industry byproducts, energy, and carbon sources throughout the entire cement production process, while also taking into account the performance adaptation and configuration optimization of various production technologies in the cement process system, a cement process integrated operation and control platform oriented towards cross-industry resource collaboration is formed. This platform includes a main process flow module, a cross-industry collaboration interface module, a resource adaptation module, and a technology optimization module. The main process flow module is used to systematically divide the cement production process and identify several key process steps; A cross-industry collaboration interface module is used to identify, access, and standardize cross-industry by-product material flows, energy flows, and carbon resources; The resource adaptation module is used to configure and couple the cross-industry resources that have been connected with the key processes in the cement production system in a process-adaptive manner. It combines the calorific value, chemical composition, physical form and pollution control requirements of the resources to configure corresponding adaptation devices or implement systemic process modifications. The technology optimization module integrates the main process module, cross-industry collaborative interface module, and resource adaptation module to build a technology optimization model. With the goal of meeting cost requirements, capacity requirements, and green and low-carbon requirements, it selects and integrates feasible technical solutions.

[0009] To achieve the above objectives, a second aspect of this application provides a computer device, including: a memory, a processor, and a computer program stored in the memory and executable on the processor. When the processor executes the computer program, it implements the above-mentioned cement process optimization method for multi-industry symbiotic zero-carbon industrial parks.

[0010] This application presents a cement process optimization method and equipment for multi-industry co-existing zero-carbon industrial parks, aiming to construct an integrated operation and control platform based on a technical information database and centered on multi-module collaboration. The system integrates a main process module, a cross-industry collaborative interface module, a resource adaptation module, and a technology optimization model module. Through systematic management of traditional processes, improved technologies, and green and low-carbon technologies involved in key processes such as raw material preparation, raw meal homogenization, clinker calcination, clinker cooling, cement grinding, and terminal emission control, it achieves multi-path optional scheduling and configuration optimization within the cement process. Simultaneously, the system supports the dynamic access and coupled utilization of by-product resources from multiple industries (such as alternative raw materials, alternative fuels, waste heat, and carbon resources), constructing an efficient process-resource matching mechanism. Based on the integrated technology optimization model module, considering energy structure, resource availability, equipment operating conditions, emission constraints, and system adaptability, it conducts multi-objective optimization solutions and configures operating strategies, thereby effectively controlling energy consumption, carbon emissions, and pollutant emissions in the cement industry within zero-carbon industrial park scenarios, providing strong support for the low-carbon and clean development of zero-carbon industrial parks and improving system efficiency.

[0011] Additional aspects and advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description

[0012] The above and / or additional aspects and advantages of this application will become apparent and readily understood from the following description of the embodiments taken in conjunction with the accompanying drawings, wherein: Figure 1 This is a flowchart illustrating a cement process optimization method for a multi-industry symbiotic zero-carbon industrial park, as provided in Embodiment 1 of this application. Figure 2 This is a schematic diagram of the structure of a cement process operation system for cross-industry resource collaboration, as described in an embodiment of this application. Figure 3 This is a schematic diagram of the cross-industry collaboration interface module according to an embodiment of this application; Figure 4 This is a schematic diagram of the structure of the resource adaptation module in an embodiment of this application; Figure 5 This is a schematic diagram of the main process flow module in an embodiment of this application; Figure 6 This is a schematic diagram illustrating the interaction between the resource adaptation module and the main process flow module in an embodiment of this application. Figure 7 This is a technical development roadmap for embodiments of this application; Figure 8 A diagram showing the cement energy consumption per unit of cement production in the cement industry corresponding to future development paths planned using the optimization method provided in this application but not in the embodiments of this application. Figure 9 This is a graph showing the carbon dioxide emission reduction per unit of cement that can be achieved by conventional development compared to the embodiments of this application; Figure 10 This is a diagram showing the sulfur dioxide emission reduction per unit of cement pollutants achievable through conventional development, compared to the embodiments of this application. Figure 11 This is a graph showing the reduction in nitrogen oxide emissions per unit of cement pollutants achievable through conventional development compared to the embodiments of this application; Figure 12 This is a graph showing the PM2.5 emission reduction per unit of cement pollutants achievable through conventional development, compared to the embodiments of this application. Figure 13 This is a diagram showing the reduction in dust emissions per unit of cement pollutants achievable through conventional development compared to the embodiments of this application; Figure 14 This diagram illustrates the reduction in dust emissions per unit of cement pollutants achievable through conventional development, compared to the embodiments described in this application. Detailed Implementation

[0013] The embodiments of this application are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this application, and should not be construed as limiting this application.

[0014] The following describes, with reference to the accompanying drawings, a cement process optimization method and system for multi-industry symbiotic zero-carbon industrial parks, according to embodiments of this application.

[0015] Figure 1 This is a schematic flowchart of a cement process optimization method for a multi-industry symbiotic zero-carbon industrial park provided in Embodiment 1 of this application.

[0016] like Figure 1 As shown, the cement process optimization method for multi-industry symbiotic zero-carbon industrial parks includes the following steps: Step 101: Collect various production technology data involved in cement production processes and construct a multi-process technology information database; The cement industry referred to in this embodiment is defined as the industry that uses raw materials such as limestone, clay, and gypsum as a basis and processes them into cement products through a series of production processes, such as grinding, calcination, and cooling. In this embodiment, process data, equipment data, energy consumption data, carbon emission data, pollutant emission data, technology market share and application maturity data of various production technologies in key processes such as raw material preparation, clinker calcination and cement grinding throughout the entire cement production process are collected to construct a technology information database.

[0017] Step 102: Based on the technical information database, consider the synergistic utilization of cross-industry by-products, energy and carbon sources in the entire cement production process, take into account the performance adaptation and configuration optimization of various production technologies in the cement process system, and form a cement process integrated operation and control platform for cross-industry resource synergy. This application considers the significant complementarity between the cement industry and other industries such as steel, non-ferrous metals, chemicals, solid waste treatment, and biomass power generation in terms of raw materials, heat energy, and carbon resources, and the enormous potential for cross-industry by-product synergistic utilization. For example, industrial solid wastes such as steel slag, fly ash, red mud, and tailings can be used as raw material substitutes; RDF, SRF, and biomass fuels can partially replace coal for calcination and heating; and CO2 can be reused through carbon capture and recovery technologies. The application aims to construct a process flow system compatible with alternative raw material and fuel access, process synergistic control, pollution control linkage, and carbon resource recovery. This system will possess the ability to efficiently connect cross-industry resource flows with cement processes, generating an integrated cement process operation and control platform that integrates "technology selection—path configuration—system operation" into a unified process integration solution.

[0018] In this embodiment, the platform includes a main process flow module, a cross-industry collaborative interface module, a resource adaptation module, and a technology optimization model module. These four modules work together to form an integrated cement process operation and control platform.

[0019] The operating platform takes the synergistic utilization of by-products, energy and carbon sources from industries such as steel, chemical, non-ferrous metals, coal power and municipal solid waste in the entire cement production process as the key collaborative unit. At the same time, it takes into account the performance adaptation and configuration optimization of multiple technologies in the cement process system, forming an integrated operating system with the ability to optimize processes within the industry and couple resources across industries. In this embodiment, the main process flow module is used to systematically divide the cement industry production process, covering multiple key processes such as raw material preparation, raw meal homogenization, clinker calcination, clinker cooling, cement grinding, and terminal emission control. The main process flow module is equipped with traditional processes, emerging equipment, and green and low-carbon technologies in each process. The technologies include, but are not limited to: raw material crushing devices (such as roller crushers and twin-shaft mixers) in the raw material preparation stage, grinding equipment (such as vertical mills and ball mills) in the raw meal homogenization stage, co-combustion systems (such as dry rotary kilns and multi-channel burners) in the clinker calcination stage, cooling and heat recovery devices (such as grate coolers and high-efficiency heat recovery devices) in the clinker cooling stage, combined grinding and sorting systems (such as high-efficiency air classifiers) in the cement grinding stage, and pollutant treatment and carbon reduction systems (such as high-efficiency bag filters, SCR / SNCR denitrification systems, and carbon capture systems) in the terminal emission control stage. Each process technology is standardized based on its key parameters such as energy consumption, emissions, and material adaptability to support system-level resource matching and process collaborative configuration. In this embodiment, the cross-industry collaborative interface module is used to identify, access, and standardize material flows, energy flows, and carbon resources from industries such as steel, non-ferrous metals, power, chemicals, and municipal solid waste. It supports dynamic access and standardized input processing of various collaborative process units, including alternative raw materials, alternative fuels, waste heat utilization, and carbon resource reuse. Through interface protocol configuration, multi-source input channel management, and attribute pre-identification, it achieves rapid access to cross-industry resources and system identifiability. Specifically, the aforementioned collaborative process units include at least the following types, and corresponding resource input ports and technology adaptation units are configured in the system for each: (1) Raw material substitution collaborative process unit: By-product resources from industries such as iron and steel, non-ferrous metals, and power, such as fly ash, blast furnace slag, red mud, and desulfurized gypsum, are used to replace natural limestone, clay, etc. The operating system dynamically matches their chemical composition, reactivity and blending ratio. (2) Fuel substitution collaborative process unit: It connects to high-calorific-value solid waste resources such as RDF, SRF, waste tires and biomass in industries such as chemical industry, solid waste treatment and rubber manufacturing. The operating system is configured with combustion adaptability curves and burner linkage control parameters based on calorific value, ash content and combustibility. (3) Waste heat recovery and utilization unit: recovers medium and low temperature heat sources from the cement production system itself or external industrial processes (such as kiln tail flue gas, clinker cooling), and configures heat exchange and conversion equipment to achieve energy flow coupling, and assists in power generation in the plant or regional heat network heating. (4) Carbon resource reuse unit: By deploying carbon capture and reuse devices (such as MEA absorption towers, membrane separation systems, etc.), CO2 generated during the clinker calcination process or external industries is guided into the carbon resource recovery and utilization chain in the cement system to achieve closed-loop management of carbon flow.

[0020] In this embodiment, the resource adaptation module is used to perform process adaptation configuration and process coupling between the already connected cross-industry by-product resources and the key processes in the cement production system. Based on the calorific value, chemical composition, physical form, and pollution control requirements of the resources, corresponding adaptation devices are configured or systematic process modifications are implemented, including but not limited to pretreatment equipment, co-feeding devices, combustion system compatible components, and carbon capture units, to ensure the stable access and efficient utilization of external resources. Specifically, to achieve the stable access and efficient utilization of cross-industry by-product resources in each cement process, the devices and modification units configured in each key process include, but are not limited to: (1) In the raw material preparation and raw material homogenization stage, physical pretreatment devices, chemical stabilization equipment and automatic metering and mixing systems for industrial by-products (including steel slag, fly ash, red mud, tailings, construction waste, etc.) are provided to achieve raw material composition stability and quality control. (2) In the clinker calcination process, a combustible solid waste co-combustion system is configured, including a multi-channel burner for high-calorific-value solid waste and biomass fuel, a fuel pretreatment system and a calorific value identification device, etc., and a front-end interface of the carbon capture system and a decomposition furnace adapter suitable for co-fuels are set up to ensure the controllable heating and emission controllability of co-fuels. (3) In the clinker cooling and waste heat recovery stage, a waste heat boiler, heat exchanger group and low temperature waste heat power generation system are configured to realize the energy reuse of high temperature waste energy; (4) In the cement grinding process, a high blending ratio adjustable feeding system, a combined grinding device and an intelligent powder selection system are set up to adapt to the synergistic grinding of external mixed materials such as desulfurized gypsum and slag powder. (5) In the end-of-pipe emission control stage, integrate denitrification, desulfurization, dust removal and carbon capture technology components, including but not limited to carbon absorption towers, compression purification units and storage and transportation interfaces, to support pollutant emission reduction and carbon resource recycling.

[0021] In this embodiment, the technology optimization module is used to integrate key input information from the main process module, cross-industry collaborative interface module, and resource adaptation function module to construct a technology optimization model, under the premise of meeting operational constraints such as process capacity, energy consumption, and emissions. This model couples various technologies, resource collaboration units, device configurations, and material-energy-carbon balance relationships within the operating system. Guided by energy conservation, emission reduction, and operational efficiency improvement, and taking into account the rationality of resource allocation and cost control, it optimizes and integrates feasible technical solutions to achieve process optimization and overall efficiency improvement in the green transformation of the cement industry.

[0022] Specifically, for the process optimization of the green transformation of the cement industry, optimization goals and constraints for industrial energy conservation and carbon reduction are determined. This technical optimization model aims at controlling the cost of the entire process, combining the minimization of overall system energy consumption, carbon emissions, and pollutant emissions, while also satisfying constraints such as output, energy supply, intermediate material supply, equipment obsolescence, production technology configuration ratio and resource use, cross-industry resource availability constraints and substitution ratio.

[0023] In this embodiment, the aforementioned objective function is used to control the cost of various production technologies in the entire cement production process, including key steps such as raw meal grinding, clinker calcination, and cement grinding. It is expressed as:

[0024] in, , , These refer to the type of equipment (sometimes also a technology), the type of fuel (such as coal, electricity, etc.), and the period. Indicates the first Total cost of the period; Indicates equipment In the Average investment cost over the period; Indicates equipment In the The number of new additions during the period; Indicates the first per unit of equipment during the period Operation and maintenance costs; Indicates equipment In the The number of operations during a given period; Indicates energy In the Prices during that period; Indicates energy In the Consumption during the period; Indicates the first Total energy consumption of the cement industry during the period; Indicates the first Energy tax levied on a unit of energy consumption during a given period; Indicates the first The cement industry during the period Total emissions of various gases or pollutants; Indicates the first Period for unit gas or pollutant Taxes levied on emissions.

[0025] The number of operating devices in the objective function depends primarily on two factors: the total number of all devices capable of producing the same product or the same intermediate product (proportioned by the amount of services provided) and the percentage of that type of device in the total, specifically including:

[0026] in, Indicates the first The number of all equipment in operation during a period used to produce the same product or intermediate product; Indicates equipment In the Popularity during that period.

[0027] In this embodiment, the above constraints include cement production constraints, cement production energy supply constraints, cement production intermediate material supply constraints, cement production equipment phase-out constraints, and cement production technology configuration ratio and resource constraints, specifically: (1) Cement production constraints: These are used to ensure that production capacity varies according to market demand, and that the cement supply in any given period is greater than or equal to the social demand for cement in that period. Cement production constraints specifically include:

[0028] in, Indicates the first During that period, unit equipment The output; Indicates the first Period equipment Increased production efficiency due to technological improvements; Indicates the first Cement demand during the period. Calculated from the above model.

[0029] (2) Energy supply constraints for cement production: The energy used for cement production in any given period should not exceed the maximum supply, but should be greater than or equal to the minimum demand. Specific energy supply constraints for cement production include:

[0030] in, Refers to fuel types (such as coal, electricity, etc.); Indicates the first During this period, energy Minimum consumption; Indicates energy In the Consumption during the period; Indicates the first During this period, energy The maximum available supply.

[0031] Energy consumption is calculated in standard coal equivalent (tce). Energy consumption for different equipment and processes is calculated by energy type. In addition to factors such as the number of operating equipment and energy consumption per unit of equipment, the model fully considers the impact of technological progress on energy conservation and emission reduction. Therefore, the rate of decrease in energy consumption per unit of equipment is introduced. The calculations related to energy consumption specifically include:

[0032] in, Indicates the first Period, unit quantity of equipment energy Consumption volume.

[0033] (3) Supply constraints of intermediate materials in cement production: Considering the entire process of cement production, including raw meal preparation, clinker calcination, and cement grinding, the input of intermediate materials (such as clinker and semi-finished cement) used in subsequent processes should not exceed the output of intermediate materials in the corresponding upstream processes to ensure material balance in the process flow. Specific constraints on the supply of intermediate materials in cement production include:

[0034] in, Indicates the first During that period, for equipment The rate of reduction in raw material input due to technological improvements; Indicates the first During that period, equipment upstream equipment The number of runs; Indicates the first During that period, unit equipment upstream equipment The output; Indicates the first During that period, equipment upstream equipment Increased output efficiency due to technological improvements.

[0035] (4) Constraints on phased-out equipment in cement production: These are intended to promote the gradual elimination of high-energy-consuming and low-efficiency equipment, meet the requirements of industry upgrading and technological transformation, and the number of phased-out equipment should be less than the stock of equipment in the previous period. Specific constraints on phased-out equipment in cement production include:

[0036]

[0037] in, Indicates equipment In the Stock during the period Indicates equipment lifespan, Indicates equipment In the The number of new additions during the period Indicates equipment In the The amount of items eliminated during a given period.

[0038] (5) Cement production technology configuration ratio and resource constraints: To meet the requirements of relevant technology development trends and resource conditions, this model considers the entire cement production process, including key stages such as raw material preparation, clinker calcination, and cement grinding. It introduces advanced technologies such as alternative raw materials, alternative fuels, and carbon capture and storage. Resource constraints are set for the actual equipment usage in any given period, meaning it should not be less than the theoretical quantity used to provide social services, and should not exceed the equipment inventory in that period. The technology configuration ratio of the equipment should be set within a reasonable range of 0 to 1 based on the assessment of technical performance. To ensure practical significance, some parameters or variables should meet the limit of being greater than or equal to 0 or between 0 and 1. This model fully considers the technology configuration ratio constraints. For technologies with energy efficiency higher than the set threshold or emissions lower than the set threshold, the model believes that their future market penetration rate should not be less than the corresponding value in the baseline period; while for technologies with energy efficiency lower than the set threshold or emissions higher than the set threshold, their future market penetration rate should not be greater than the corresponding value in the baseline period. The specific components of the cement production technology configuration ratio and resource constraints include:

[0039]

[0040]

[0041]

[0042]

[0043]

[0044] in, Indicates equipment In the Minimum demand during a given period; Indicates equipment In the Minimum adoption rate during the period; Indicates equipment In the Popularity during that period; Indicates equipment In the The highest penetration rate during that period; Indicates the first During that period, equipment Due to the increased demand for energy due to improved energy efficiency The rate of savings; Indicates unit equipment For the The emission rate of a certain gas or pollutant. Indicates energy In the equipment Combustion rate, Indicates the first During this period, for equipment with energy efficiency exceeding the set threshold or emissions below the set threshold... Its minimum promotion rate Indicates the first During this period, for equipment with energy efficiency below the set threshold or emissions above the set threshold... Its maximum promotion rate Indicates equipment Promotion rate in the baseline period Indicates equipment In the Average cost per period Indicates energy In the Prices during that period Indicates energy In the Consumption during the period Indicates the first Total energy consumption of the cement industry during the period Indicates the first Electricity during the period for the first The emission coefficient of a certain gas or pollutant. Indicates the first Energy tax levied on unit energy consumption during a given period. Indicates the first The cement industry during the period Total emissions of various gases or pollutants Indicates the first Period for unit gas or pollutant Taxes levied on emissions.

[0045] Total carbon dioxide emissions from the cement industry consist of three main parts: fuel combustion emissions, production process emissions, and indirect emissions from electricity use. Fuel combustion emissions refer to emissions resulting from the redox reactions that occur during the combustion of fossil fuels. Production process emissions are unrelated to fossil fuels and refer to carbon dioxide emissions from limestone decomposition during raw material processing and indirect emissions from electricity used in cement production. Pollutant emissions are obtained from energy consumption and emission factors. Specific calculations related to gaseous emissions include:

[0046]

[0047]

[0048]

[0049] in, Represented as the first Period, unit quantity of equipment In cement production, for the first The amount of gaseous or pollutant emitted during a process; Represented as the first Period, unit quantity of equipment Due to the first Emissions of various gases or pollutants; Represented as the first The period brought about by electricity Emissions of various gases or pollutants; Represented as if energy Complete combustion, per unit number of devices In the During this period, due to energy consumption The first Emissions of various gases or pollutants; Represented as the first Period, unit quantity of equipment The first generation in cement production Energy generated by gases or pollutants Consumption volume; Represented as the first The period was due to the decomposition of limestone in the raw materials, resulting in the first Emissions of various gases or pollutants; Represented as the first The decomposition of limestone in the raw materials during the period is important for the first The emission coefficient of a certain gas or pollutant; Expressed as limestone consumption; Represented as the first Electricity consumption during the period.

[0050] (6) Cross-industry resource availability constraints: These are constraints that, under specific time, space, policy, or industrial collaboration conditions, the availability of alternative resources (such as blast furnace slag, fly ash, RDF, etc.) in any given period should be less than or equal to the maximum available quantity or supply capacity. Specifically, cross-industry resource availability constraints in cement production include:

[0051] in, Indicates the first During that period, it was actually used in the cement production system for the first time. The usage of external collaborative resources (such as fly ash, RDF, etc.) Indicates the first Period, the The maximum supply capacity of a type of resource that can be obtained within a specified area and time period.

[0052] (7) Substitution Ratio Constraints: Under any given period, given limitations such as process feasibility, product quality, and equipment compatibility, the technical upper limit of the maximum allowable admixture ratio or substitution ratio for a certain type of alternative resource in cement production should be less than or equal to this limit. The specific substitution ratio constraints in cement production include:

[0053] in, Indicates the first During that period, it was actually used in the cement production system for the first time. The usage of external collaborative resources (such as fly ash, RDF, etc.) Indicates the first During this period, the corresponding baseline material usage that can be substituted in the process flow (e.g., all raw materials, all fuel, etc.) is determined. Indicates the first The maximum allowable substitution ratio for this type of resource in the process.

[0054] Specifically, by minimizing the objective function and setting the constraints to limit the selection and configuration ratio of production technologies, a phased green transformation and technology configuration plan is generated.

[0055] Specifically, under the conditions of meeting the optimization objectives and constraints, this embodiment implements optimal matching and adjustment of traditional technologies, advanced technologies, and improved technologies in key processes such as raw material preparation, clinker calcination, and cement grinding, as well as new green and low-carbon technologies such as alternative raw materials, alternative fuels, and carbon capture and storage, to generate a systematic technical configuration scheme covering the entire process.

[0056] Based on the output of the optimization model, this embodiment further formulates a phased technology implementation roadmap, including the introduction of advanced technologies, equipment transformation and upgrading, and collaborative promotion of processes. It clarifies the technology configuration ratio and collaborative resource utilization plan for each process, and supports green upgrade path planning from single plant level to regional level.

[0057] This application's embodiment of the cement process optimization method for multi-industry symbiotic zero-carbon industrial parks centers on a cross-industry resource-coordinated cement process operation system. The system integrates a main process module, a cross-industry collaborative interface module, a resource adaptation module, and a technology optimization model module. The operation system supports the introduction of alternative raw materials, fuels, blended materials, waste heat, and carbon resources from industries such as steel, power, and chemicals, and connects to multiple types of collaborative process units, achieving adaptive process configuration. Through the embedded technology optimization model, optimal scheduling of each key process is achieved: minimizing overall energy consumption, carbon emissions, and pollutant emissions while meeting production and demand fluctuations. This embodiment achieves system-level optimization of the entire production process, significantly improving resource utilization efficiency and enhancing the accuracy and feasibility of optimization decisions. It provides systematic technical support and decision-making basis for the green and low-carbon transformation of the cement industry and the collaborative carbon reduction goals of multi-industry symbiotic zero-carbon industrial parks. It is applicable to individual cement enterprises, regional industries, or nationwide cement production systems, and can also be adapted to cross-industry collaborative scenarios in multi-industry symbiotic zero-carbon industrial parks. Furthermore, it can perform green transformation and technology optimization for any time period (e.g., year, month, day).

[0058] After adopting the optimized scheme of this embodiment, the unit energy consumption of cement production is reduced by 5.5% to 8.7%, carbon emissions are reduced by 3.2% to 30.7%, and pollutant emissions are reduced by 8.0% to 21.7%, providing a practical and feasible technical path for the green transformation of the cement industry.

[0059] This embodiment introduces alternative fuels to reduce dependence on fossil fuels. The use of alternative fuels reduces energy consumption per unit of cement production by 1.6% to 4.4%, carbon emissions by 0.7% to 1.8%, and pollutant emissions by 1.9% to 5.5%.

[0060] This embodiment reduces reliance on limestone by using alternative raw materials. The technical results show that unit energy consumption is reduced by 0.4% to 2.7%, carbon emissions are reduced by 0.39% to 2.7%, and pollutant emissions are reduced by 0.6% to 3.8%.

[0061] This embodiment introduces carbon capture and storage technology to capture and store carbon dioxide generated during cement production. The application of carbon capture and storage technology reduces unit carbon emissions by 0.79% to 24.3%.

[0062] The cement process operation system with cross-industry resource collaboration provided in this embodiment is as follows: Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 As shown, Figure 2 This is a schematic diagram of the system structure. Figure 3 This is a structural diagram of a cross-industry collaboration interface module. Figure 4 This is a structural diagram of the resource adaptation module. Figure 5 This is a structural diagram of the main process flow module. Figure 6 This is a schematic diagram illustrating the interaction between the resource adaptation module and the main process flow module. The optimized production technology selection and configuration ratios, as well as the planned optimal production path, provided by the process optimization method in this embodiment have significant advantages in maximizing energy efficiency and minimizing carbon and pollutant emissions. The beneficial effects of the process optimization method in promoting the green transformation of the cement industry are... Figures 7 to 14 The details are shown in Tables 1 to 7.

[0063] Table 1. Unit Cement Energy Consumption Corresponding to Different Future Development Paths

[0064] Table 2. Carbon dioxide emissions per unit of cement corresponding to different future development paths

[0065] Table 3. Sulfur dioxide emissions per unit of cement corresponding to different future development paths

[0066] Table 4. Nitrogen oxide emissions per unit of cement corresponding to different future development paths

[0067] Table 5 PM2.5 Emissions per Unit of Cement under Different Future Development Paths

[0068] Table 6. Emissions of pollutants per unit of cement corresponding to different future development paths

[0069] Table 7. Dust Emissions Per Unit of Cement under Different Future Development Paths

[0070] Figure 7 for Figure 1 and Figure 2 The technology development roadmap provided in the illustrated embodiment outlines the detailed future promotion of different types of technologies. The cement industry can use this roadmap to make future technology selections and deployments to promote the green transformation of the cement industry. Figure 8 Table 1 shows the unit energy consumption of cement production corresponding to the future development paths planned without and with the optimization method provided in this embodiment; Figure 9 And Table 2 shows Figure 1 and Figure 2 The method provided in the illustrated embodiment is comparable to the CO2 emission reduction per unit of cement that can be achieved through conventional development. Figure 10 And Table 3 shows Figure 1 and Figure 2 The method provided in the illustrated embodiment is comparable to the sulfur dioxide emission reduction per unit of cement pollutant achievable through conventional development. Figure 11 And Table 4 shows Figure 1 and Figure 2 The method provided in the illustrated embodiment is comparable to the reduction in nitrogen oxide emissions per unit of cement pollutants achievable through conventional development. Figure 12 And Table 5 shows Figure 1 and Figure 2 The method provided in the illustrated embodiment is comparable to the PM2.5 emission reduction per unit of cement that can be achieved through conventional development. Figure 13 And Table 6 shows Figure 1 and Figure 2 The method provided in the illustrated embodiment is comparable to the amount of dust and pollutant emissions reduction per unit of cement that can be achieved through conventional development. Figure 14 And Table 7 shows Figure 1 and Figure 2 The method provided in the illustrated embodiment compares the dust emission reduction per unit of cement produced by conventional development. Based on the process optimization method provided in this embodiment, future energy consumption and greenhouse gas and pollutant emissions can be simulated and compared with conventional development schemes that do not employ this process optimization method, providing a reference and basis for the green transformation and process optimization of the cement industry.

[0071] To implement the above embodiments, this application also proposes a computer device, including a memory, a processor, and a computer program stored in the memory and executable on the processor. When the processor executes the computer program, it implements the methods described in the above embodiments.

[0072] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0073] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0074] Any process or method description in the flowchart or otherwise herein can be understood as representing a module, segment, or portion of code comprising one or more executable instructions for implementing custom logic functions or processes, and the scope of the preferred embodiments of this application includes additional implementations in which functions may be performed not in the order shown or discussed, including substantially simultaneously or in reverse order depending on the functions involved, as should be understood by those skilled in the art to which embodiments of this application pertain.

[0075] The logic and / or steps represented in the flowchart or otherwise described herein, for example, can be considered as a sequenced list of executable instructions for implementing logical functions, and can be embodied in any computer-readable medium for use by, or in conjunction with, an instruction execution system, apparatus, or device (such as a computer-based system, a processor-included system, or other system that can fetch and execute instructions from, an instruction execution system, apparatus, or device). For the purposes of this specification, "computer-readable medium" can be any means that can contain, store, communicate, propagate, or transmit programs for use by, or in conjunction with, an instruction execution system, apparatus, or device. More specific examples (a non-exhaustive list) of computer-readable media include: an electrical connection having one or more wires (electronic device), a portable computer disk drive (magnetic device), random access memory (RAM), read-only memory (ROM), erasable and editable read-only memory (EPROM or flash memory), fiber optic devices, and portable optical disc read-only memory (CDROM). Alternatively, the computer-readable medium may be paper or other suitable media on which the program can be printed, since the program can be obtained electronically, for example, by optically scanning the paper or other medium, followed by editing, interpreting, or otherwise processing as necessary, and then stored in a computer memory.

[0076] It should be understood that various parts of this application can be implemented using hardware, software, firmware, or a combination thereof. In the above embodiments, multiple steps or methods can be implemented using software or firmware stored in memory and executed by a suitable instruction execution system. For example, if implemented in hardware as in another embodiment, it can be implemented using any one or a combination of the following techniques known in the art: discrete logic circuits having logic gates for implementing logical functions on data signals, application-specific integrated circuits (ASICs) having suitable combinational logic gates, programmable gate arrays (PGAs), field-programmable gate arrays (FPGAs), etc.

[0077] Those skilled in the art will understand that all or part of the steps of the methods in the above embodiments can be implemented by a program instructing related hardware. The program can be stored in a computer-readable storage medium, and when executed, the program includes one or a combination of the steps of the method embodiments.

[0078] Furthermore, the functional units in the various embodiments of this application can be integrated into a processing module, or each unit can exist physically separately, or two or more units can be integrated into a module. The integrated module can be implemented in hardware or as a software functional module. If the integrated module is implemented as a software functional module and sold or used as an independent product, it can also be stored in a computer-readable storage medium.

[0079] The storage medium mentioned above can be a read-only memory, a disk, or an optical disk, etc. Although embodiments of this application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting this application. Those skilled in the art can make changes, modifications, substitutions, and variations to the above embodiments within the scope of this application.

Claims

1. A method for optimizing cement processes in multi-industry symbiotic zero-carbon industrial parks, characterized in that, include: Collect various production technology data involved in cement production processes and construct a multi-process technology information database; Based on the aforementioned multi-process technical information database, and considering the synergistic utilization of cross-industry byproducts, energy, and carbon sources throughout the entire cement production process, while also taking into account the performance adaptation and configuration optimization of various production technologies in the cement process system, a cement process integrated operation and control platform oriented towards cross-industry resource collaboration is formed. This platform includes a main process flow module, a cross-industry collaboration interface module, a resource adaptation module, and a technology optimization module. The main process module is used to systematically divide the cement production process and identify multiple key process steps. The cross-industry collaborative interface module is used to identify, access, and standardize cross-industry by-product material flows, energy flows, and carbon resources. The resource adaptation module is used to configure and couple the cross-industry resources that have been connected with the key processes in the cement production system in a process-adaptive manner. It combines the calorific value, chemical composition, physical form and pollution control requirements of the resources to configure corresponding adaptation devices or implement systemic process modifications. The technology optimization module is used to integrate the main process module, cross-industry collaborative interface module, and resource adaptation module to build a technology optimization model. With the goal of meeting cost requirements, capacity requirements, and green and low-carbon requirements, it selects and integrates feasible technical solutions.

2. The cement process optimization method for multi-industry symbiotic zero-carbon industrial parks as described in claim 1, characterized in that, The multi-process technical information database includes, but is not limited to, process parameters, equipment configuration, energy consumption levels, carbon emissions, pollutant emission characteristics, and the market share and application maturity of various technologies in the industry.

3. The cement process optimization method for multi-industry symbiotic zero-carbon industrial parks as described in claim 1, characterized in that, The cross-industry sectors mentioned refer to industries related to cement production, including but not limited to steel, chemicals, non-ferrous metals, coal power, and municipal solid waste. The consideration of the synergistic utilization of cross-industry byproducts, energy, and carbon sources throughout the cement production process includes: By using cross-industry by-product resources, we can replace the raw materials and fuels used in cement production, thereby achieving the synergistic utilization of raw material and fuel substitution. Heat energy generated during cement production or cross-industry production is recovered and configured with heat exchange and conversion equipment to achieve energy flow coupling, assist in power generation or heating, and realize waste heat recovery and utilization. By deploying carbon collection and reuse devices, CO2 generated during cement production or cross-industry production is guided into the carbon resource recovery and utilization chain within the cement system, achieving closed-loop carbon flow management.

4. The cement process optimization method for multi-industry symbiotic zero-carbon industrial parks as described in claim 1, characterized in that, The cement production process includes raw material preparation, raw meal homogenization, clinker calcination, clinker cooling, cement grinding, and terminal emission control. The various production technologies involved in cement production processes include: raw material crushing equipment in the raw material preparation stage, grinding equipment in the raw material homogenization stage, co-combustion system in the clinker calcination stage, cooling and heat recovery equipment in the clinker cooling stage, combined grinding and sorting system in the cement grinding stage, and pollutant treatment and carbon emission reduction system in the terminal emission control stage.

5. The cement process optimization method for multi-industry symbiotic zero-carbon industrial parks as described in claim 4, characterized in that, The resource adaptation module is specifically used for: In the raw material preparation and raw material homogenization stage, physical pretreatment devices, chemical stabilization equipment and automatic metering and mixing systems for industrial by-products are installed to achieve raw material component stability and quality control. In the clinker calcination stage, a combustible solid waste co-combustion system is configured, including a multi-channel burner for high-calorific-value solid waste and biomass fuel, a fuel pretreatment system and a calorific value identification device, and a front-end interface for a carbon capture system and a decomposition furnace adapter suitable for co-fuels, to ensure controllable heating and controllable emissions of co-fuels. In the clinker cooling and waste heat recovery stage, a waste heat boiler, heat exchanger group and low temperature waste heat power generation system are configured to realize the energy reuse of high temperature waste energy. In the cement grinding process, a high blending ratio adjustable feeding system, a combined grinding device and an intelligent powder selection system are set up to adapt to the synergistic grinding of external admixtures, including desulfurized gypsum and slag powder. In the terminal emission control stage, it integrates denitrification, desulfurization, dust removal and carbon capture technology components, including but not limited to carbon absorption towers, compression purification units and storage and transportation interfaces, to support pollutant emission reduction and carbon resource recycling.

6. The cement process optimization method for multi-industry symbiotic zero-carbon industrial parks as described in claim 1, characterized in that, The optimization objective of the technology optimization model is to minimize the total cost, energy consumption, carbon emissions, and pollutant emissions. The constraints of the technology optimization model include cement production constraints, cement production energy supply constraints, cement production intermediate material supply constraints, cement production equipment elimination constraints, cement production technology configuration ratio and resource constraints, and cross-industry resource availability and substitution ratio constraints.

7. The cement process optimization method for multi-industry symbiotic zero-carbon industrial parks as described in claim 6, characterized in that, The optimization objective is: in, For the first Total cost of the period , These refer to the type of equipment and the type of fuel, respectively. Indicates equipment In the Average investment cost during the period Indicates equipment In the The number of new additions during the period Indicates the first per unit of equipment during the period Operation and maintenance costs, Indicates energy In the Prices during that period Indicates energy In the Consumption during the period Indicates the first Total energy consumption of the cement industry during the period Indicates the first Energy tax levied on unit energy consumption during a certain period Indicates the first The cement industry during the period Total emissions of various gases or pollutants Indicates the first Period for unit gas or pollutant Taxes levied on emissions Indicates equipment In the The number of operations during a period is expressed as: Indicates the first The number of all equipment in operation during a period used to produce the same product or intermediate product. Indicates equipment In the Popularity during that period.

8. The cement process optimization method for multi-industry symbiotic zero-carbon industrial parks as described in claim 6, characterized in that, The cement production constraint is that the cement supply in any period is greater than or equal to the social demand for cement in that period, expressed as: in, Indicates the first During that period, unit equipment The output, For the type of equipment, For a period of time, Indicates equipment In the Number of operations during the period Indicates the first Period equipment Increased production efficiency due to technological improvements Indicates the first Cement demand during the period; The energy supply constraint for cement production is that the energy used for cement production in any given period does not exceed the maximum supply and is greater than or equal to the minimum demand, expressed as: in, Indicates energy In the Consumption during the period , Minimum demand and maximum supply; The supply constraint for intermediate materials in cement production is that the input of intermediate materials used in subsequent processes shall not exceed the output of intermediate materials in the corresponding upstream processes, expressed as: in, For equipment upstream equipment, Indicates the first Period equipment The rate of reduction in raw material input due to technological improvements; The constraint for eliminating cement production equipment is that the number of eliminated equipment is less than the stock of equipment in the previous period, expressed as: in, Indicates equipment In the Stock during the period Indicates equipment lifespan, Indicates equipment In the The number of new additions during the period Indicates equipment In the The amount of items eliminated during a given period; The cement production technology configuration ratio and resource constraints include technology configuration ratio constraints and resource constraints. The technology configuration ratio constraints are set based on the results of technology performance evaluation, with the ratio ranging from 0 to 1. When setting this ratio, for technologies with energy efficiency higher than a set threshold or emissions lower than a set threshold, their future market penetration rate is set to be no less than the corresponding value in the baseline period; for technologies with energy efficiency lower than a set threshold or emissions higher than a set threshold, their future market penetration rate is set to be no greater than the corresponding value in the baseline period. The resource constraints mean that the actual usage of equipment in any given period is no less than the theoretical quantity used to provide social services, and no greater than the equipment inventory in that period. The cement production technology configuration ratio and resource constraints are expressed as follows: in, Indicates equipment In the Minimum demand during the period , Indicates equipment In the Minimum and maximum penetration rates during the period Indicates equipment In the Popularity during the period Indicates the first Period equipment Due to the increased demand for energy due to improved energy efficiency The rate of savings Indicates unit equipment For the The emission rate of a certain gas or pollutant. Indicates energy In the equipment Combustion rate, Indicates the first During this period, for equipment with energy efficiency exceeding the set threshold or emissions below the set threshold... Its minimum promotion rate Indicates the first During this period, for equipment with energy efficiency below the set threshold or emissions above the set threshold... Its maximum promotion rate Indicates equipment Promotion rate in the baseline period Indicates equipment In the Average cost per period Indicates energy In the Prices during that period Indicates energy In the Consumption during the period Indicates the first Total energy consumption of the cement industry during the period Indicates the first Electricity during the period for the first The emission coefficient of a certain gas or pollutant. Indicates the first Energy tax levied on unit energy consumption during a given period. Indicates the first The cement industry during the period Total emissions of various gases or pollutants Indicates the first Period for unit gas or pollutant Taxes levied on emissions; The cross-industry resource availability constraint means that, under specific time, space, policy, or industrial collaboration conditions, the alternative resources in any given period should be less than or equal to the maximum available quantity or supply capacity, expressed as: in, Indicates the first During that period, it was actually used in the cement production system for the first time. The usage of external collaborative resources. Indicates the first Period, the The maximum supply capacity of a type of resource that can be obtained within a specified area and time period; The substitution ratio constraint refers to the technical upper limit of the maximum allowable admixture ratio or substitution ratio of a certain type of substitute resource in cement production, under the constraints of process feasibility, product quality, and equipment compatibility at any given time. It is expressed as: in, Indicates the first During that period, it was actually used in the cement production system for the first time. The usage of external collaborative resources. Indicates the first During this period, the corresponding baseline material usage that can be substituted in the process flow is... Indicates the first The maximum allowable substitution ratio for this type of resource in the process.

9. A computer device, characterized in that, The system includes a memory, a processor, and a computer program stored in the memory and executable on the processor. When the processor executes the computer program, it implements the cement process optimization method for multi-industry symbiotic zero-carbon industrial parks as described in any one of claims 1-8.

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