Mine water resource comprehensive utilization system and method based on multi-target coupling

Abstract

The present application relates to the technical field of mine water treatment and utilization, and discloses a mine water resource comprehensive utilization system and method based on multi-target coupling, which comprises: a multi-source mine water collection module for collecting mine water in different underground areas; a hierarchical storage and adjustment module for performing hierarchical storage and adjustment on the mine water; a target-oriented purification module for performing targeted purification treatment on the adjusted mine water to generate up-to-standard industrial water or irrigation water; a multi-scene utilization module for delivering the up-to-standard industrial water or irrigation water to corresponding water use scenes for industrial or agricultural scene water supply utilization; and an intelligent coupling regulation and control center module for establishing a double-target function of maximum water resource utilization rate and minimum system energy consumption based on the monitoring state data of all modules and initial system control instructions and constraint conditions, iteratively solving by using a multi-target particle swarm optimization method to generate optimal control instructions; and the present application greatly improves the mine water resource utilization rate.

Description

Technical Field

[0001] This invention relates to the field of mine water treatment and utilization technology, specifically to a comprehensive utilization system and method for mine water resources based on multi-objective coupling. Background Technology

[0002] Mine water is a vital water resource generated during coal mining. Traditional treatment methods often employ a single process for direct discharge or simple reuse, failing to adequately consider the varying water quality requirements of different water use scenarios. This results in high treatment costs and low water resource utilization. For instance, industrial production water (such as underground dust control and equipment cooling) and agricultural irrigation water have significantly different requirements for indicators such as suspended solids, hardness, and microorganisms. Applying a uniform treatment standard can lead to over- or under-treatment.

[0003] Meanwhile, the existing mine water utilization system lacks a coordinated coupling mechanism among its various components. The modules for collection, storage, purification, and utilization are independent of each other, making it impossible to dynamically adjust operating parameters according to water demand and thus hindering the maximization of comprehensive utilization of mine water resources.

[0004] Therefore, there is an urgent need for a comprehensive mine water resource utilization system with a modular design based on water use objectives and a multi-objective coupling mechanism to achieve coordinated operation of each module. Summary of the Invention

[0005] To address the aforementioned shortcomings in existing technologies, this invention provides a comprehensive mine water resource utilization system and method based on multi-objective coupling, which solves the problem of low mine water resource utilization efficiency in existing mine water utilization systems or methods.

[0006] To achieve the above-mentioned objectives, the technical solution adopted by this invention is as follows:

[0007] A multi-objective coupled comprehensive utilization system for mine water resources includes:

[0008] The multi-source mine water acquisition module is used to receive acquisition and control commands sent by the intelligent coupling control center module, collect mine water from different areas underground, and transport it to the hierarchical storage module through pipelines.

[0009] The hierarchical storage and regulation module is used to receive storage and regulation instructions sent by the intelligent coupling and regulation center module, and to store the mine water in a hierarchical manner according to the purpose of the mine water. After storing it as industrial water or irrigation water, the mine water is regulated to generate regulated industrial water or irrigation water, and then transported to the target-oriented purification module through pipeline.

[0010] The target-oriented purification module is used to receive purification and control instructions sent by the intelligent coupling control center module, perform targeted purification treatment on the industrial water or irrigation water to be regulated, generate qualified industrial water or irrigation water, and transport it to the multi-scenario utilization module through pipelines.

[0011] The multi-scenario utilization module is used to receive supply control instructions sent by the intelligent coupling control center module and deliver qualified industrial or irrigation water to the corresponding water use scenario for industrial or agricultural water supply utilization.

[0012] The intelligent coupling control center module is used to receive monitoring status data from all modules, set initial system control commands, calculate water resource utilization rate and system energy consumption, set storage and operation constraints, establish a dual objective function of maximizing water resource utilization rate and minimizing system energy consumption, and use a multi-objective particle swarm optimization method for iterative solution to generate the optimal control command, so as to realize the hierarchical storage, regulation and multi-scenario water supply multi-objective collaborative coupling of the mine water resource comprehensive utilization system.

[0013] The method for applying a multi-objective coupled comprehensive utilization system for mine water resources includes the following steps:

[0014] S1. The intelligent coupling control center module sends acquisition and control commands to the multi-source mine water acquisition module, and the multi-source mine water acquisition module then acquires mine water from different areas underground according to the acquisition and control commands.

[0015] S2. The intelligent coupling control center module sends storage control instructions to the hierarchical storage control module. The hierarchical storage control module then stores and controls the mine water in different levels according to the storage control instructions and the intended use of the mine water, generating regulated industrial water or irrigation water for use.

[0016] S3. The intelligent coupling control center module sends a purification control command to the target-oriented purification module. The target-oriented purification module then performs targeted purification treatment on the adjusted industrial water or irrigation water according to the purification control command, generating qualified industrial water or irrigation water.

[0017] S4. The intelligent coupling control center module sends supply control instructions to the multi-scenario utilization module. The multi-scenario utilization module then delivers the qualified industrial or irrigation water to the corresponding water use scenario according to the supply control instructions for industrial or agricultural water supply utilization.

[0018] S5. The monitoring status data of the multi-source mine water acquisition module, hierarchical storage and regulation module, target-oriented purification module, and multi-scenario utilization module are fed back to the intelligent coupling control center module in real time. The intelligent coupling control center module then uses the multi-target particle swarm optimization method to perform data analysis and iterative optimization based on the monitoring status data of each module, and generates control commands for the corresponding modules.

[0019] The present invention has the following beneficial effects:

[0020] The proposed system and method for comprehensive utilization of mine water resources based on multi-objective coupling in this invention divides the system into modules according to different water use purposes, thereby treating mine water in a targeted manner, avoiding over-treatment or under-treatment, and reducing treatment costs. At the same time, the intelligent coupling control center module enables the coordinated operation of each module, minimizing the cost and energy consumption of mine water resource treatment while meeting different water use needs, thus improving the utilization rate of mine water resources. Furthermore, the introduction of a multi-objective particle swarm optimization method for command control of the operation of each module, through water use coordination, realizes the intelligent and proactive regulation of the system, ultimately improving the system's operational stability and economy. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of the mine water resource comprehensive utilization system based on multi-objective coupling proposed in this invention;

[0022] Figure 2 This is a schematic diagram of the structure of the multi-source mine water acquisition module in the embodiment;

[0023] Figure 3 This is a schematic diagram of the hierarchical storage adjustment module in the embodiment;

[0024] Figure 4 This is a schematic diagram of the target-oriented purification module in the embodiment;

[0025] Figure 5 This is a schematic diagram of the multi-scenario utilization module in the embodiment;

[0026] Figure 6 This is a schematic diagram of the process for the comprehensive utilization method of mine water resources based on multi-objective coupling proposed in this invention. Detailed Implementation

[0027] The specific embodiments of the present invention are described below to enable those skilled in the art to understand the present invention. However, it should be understood that the present invention is not limited to the scope of the specific embodiments. For those skilled in the art, various changes are obvious as long as they are within the spirit and scope of the present invention as defined and determined by the appended claims. All inventions utilizing the concept of the present invention are protected.

[0028] like Figure 1 As shown, a comprehensive mine water resource utilization system based on multi-objective coupling includes:

[0029] The multi-source mine water acquisition module is used to receive acquisition and control commands sent by the intelligent coupling control center module, collect mine water from different areas underground, and transport it to the hierarchical storage module through pipelines.

[0030] In this embodiment, the purpose of designing the multi-source mine water acquisition module is to: acquire raw mine water from multiple underground areas, complete preliminary impurity interception, and allocate water volume to the hierarchical storage and regulation module according to acquisition and control instructions; wherein, the structure and connection relationship of the multi-source mine water acquisition module are as follows: Figure 2 As shown, it includes a downhole water collection submodule and a water pretreatment submodule. The downhole water collection submodule is equipped with a submersible pump, and the water pretreatment submodule is equipped with a mechanical bar screen.

[0031] The underground water collection submodule is used to collect mine water from different areas underground using submersible pumps according to the start / stop and frequency commands sent by the intelligent coupling control center module. The water is then transported to the water pretreatment module through pipelines. At the same time, the status data of the submersible pumps is transmitted to the intelligent coupling control center module. The status data of the submersible pumps includes the submersible pump operating current, pumping time, and real-time flow rate.

[0032] In this embodiment, the mine water in different areas underground includes the coal mining face, the tunneling face, and the water accumulation area in the roadway; the underground water collection submodule starts the submersible pump by receiving start / stop and frequency commands from the submersible pump, adjusts the pumping flow rate according to the commands, and then transports the pumped mine water to the water pretreatment module through pipelines, simultaneously recording the pumping time, flow rate data, and operating current, and feeding them back to the control center.

[0033] The water pretreatment submodule is used to remove large impurities from the mine water in different areas underground by mechanical bar screens according to the bar screen cleaning instructions sent by the intelligent coupling control center module, and then transport it to the graded storage module through pipelines.

[0034] In this embodiment, the water pretreatment submodule receives a screen cleaning command and passes the mine water through a mechanical screen with a large aperture to intercept large impurities, such as coal blocks and gravel. The large impurities can then be discharged into the solid waste collection box.

[0035] The hierarchical storage and regulation module receives storage and regulation instructions sent by the intelligent coupling and control center module. Based on the intended use of the mine water, it performs hierarchical storage of the mine water. After storing it as industrial water or irrigation water, it regulates the mine water to generate regulated industrial water or irrigation water, which is then transported to the target-oriented purification module through pipelines.

[0036] In this embodiment, the purpose of designing the hierarchical storage and regulation module is to: classify and store mine water according to its intended use, monitor water level and quality in real time, provide a stable water source for subsequent purification modules, and serve as a buffer center for the system's water quality and quantity; the structure and connection relationship of the hierarchical storage and regulation module are as follows: Figure 3 As shown, it includes an industrial water regulating tank module and an irrigation water regulating tank module, and both the industrial water regulating tank module and the irrigation water regulating tank module are equipped with a liquid level sensor, a water quality monitoring sensor and a stirring device.

[0037] The industrial water regulating tank module receives water flow distribution direction, stirring start / stop, and sewage discharge commands from the intelligent coupling control center module. It receives and stores mine water after removing large impurities, monitors the mine water level in real time using a level sensor, and monitors the suspended solids concentration and pH value in real time using a water quality monitoring sensor. It sets up periodic sewage discharge to remove accumulated sludge from the bottom of the tank, ultimately generating regulated industrial water for later use. This water is then transported through pipelines to the target-oriented purification module. Simultaneously, the stored status data of the regulated industrial water for later use is transmitted to the intelligent coupling control center module. The stored status data of the regulated industrial water for later use includes water level, suspended solids concentration, and pH value.

[0038] Specifically, the process of using a liquid level sensor to monitor the mine water level in real time is as follows:

[0039] If the mine water level is lower than the preset low water level threshold, a water replenishment request command is sent to the intelligent coupling control center module. Otherwise, if the mine water level is higher than the preset high water level threshold, a water level warning command is sent to the intelligent coupling control center module to stop the delivery of mine water. Otherwise, no action is taken.

[0040] Specifically, the process of using water quality monitoring sensors to monitor the concentration of suspended solids in the water of a mine shaft in real time is as follows:

[0041] Based on the concentration of suspended solids, determine whether the suspended solids have settled. If so, start the stirring device to stir; otherwise, do not take any action.

[0042] In this embodiment, the industrial water regulating tank module uses a level sensor to monitor the mine water level in real time. The industrial water regulating tank is equipped with low and high water levels. When the stored mine water level is below the low level, a water replenishment request is sent to the control center. When the stored mine water level is above the high level, a water level warning command is sent to the control center to stop the delivery of mine water. Other adjustments are made according to the needs of subsequent modules. Secondly, the module is also equipped with a water quality monitoring sensor to monitor suspended solids concentration, pH value, etc. Its purpose is to detect when significant suspended solids settling can clog the pipes; therefore, a pneumatic agitator is used for stirring. In addition, the module is also equipped with a drain valve. When sludge accumulates at the bottom of the tank, the drain valve is opened according to a command to discharge the sludge. Simultaneously, the module also needs to record the storage status data of the final regulated industrial water, such as water level, suspended solids concentration, and pH value, in real time and feed it back to the control center for subsequent purification treatment.

[0043] The irrigation water regulating tank module receives water flow distribution direction, stirring start / stop, and sewage discharge commands from the intelligent coupling control center module. It receives and stores mine water after removing large impurities, monitors the mine water level in real time using a level sensor, and monitors the concentration of suspended solids, initial COD, and number of microorganisms in the mine water in real time using a water quality monitoring sensor. It sets up periodic sewage discharge to remove the sludge accumulated at the bottom of the tank, ultimately generating irrigation water ready for use. This water is then transported through pipelines to the target-oriented purification module. At the same time, the stored status data of the irrigation water ready for use is transmitted to the intelligent coupling control center module. The stored status data of the irrigation water ready for use includes water level, initial COD (chemical oxygen demand), and number of microorganisms.

[0044] Specifically, the process of using a liquid level sensor to monitor the mine water level in real time is as follows:

[0045] If the mine water level is lower than the preset low water level threshold, a water replenishment request command is sent to the intelligent coupling control center module. Otherwise, if the mine water level is higher than the preset high water level threshold, a water level warning command is sent to the intelligent coupling control center module to stop the delivery of mine water. Otherwise, no action is taken.

[0046] Specifically, the process of using water quality monitoring sensors to monitor the concentration of suspended solids in the water of a mine shaft in real time is as follows:

[0047] Based on the concentration of suspended solids, determine whether the suspended solids have settled. If so, start the stirring device to stir; otherwise, do not take any action.

[0048] In this embodiment, the irrigation water regulating tank module, like the industrial water regulating tank module, is equipped with a level sensor, a water quality monitoring sensor, and a stirring device. The irrigation water regulating tank also has low and high water levels to prevent water shortages or excessive storage of mine water exceeding the regulating tank's capacity and causing overflow. Secondly, the water quality monitoring sensor in this module monitors suspended solids concentration, initial COD value, and microbial count. Because industrial water and agricultural irrigation water require different water qualities, the monitored water quality parameters differ. Furthermore, in practical applications, the monitored water quality parameters can be adjusted according to the intended use of the water. Finally, this module also needs to record the storage status data of the final regulated irrigation water, such as water level, initial COD value, and microbial count, in real time and feed this data back to the control center for subsequent purification treatment.

[0049] The target-oriented purification module receives purification and control instructions sent by the intelligent coupling control center module, performs targeted purification treatment on the industrial or irrigation water to be used, generates qualified industrial or irrigation water, and delivers it to the multi-scenario utilization module through pipelines.

[0050] In this embodiment, the purpose of designing the target-oriented purification module is to specifically purify mine water according to the differentiated water quality requirements of industrial production and agricultural irrigation, thereby ensuring that the effluent meets the standards. It is the core of the system's water purification process. The structure and connection relationships of the target-oriented purification module are as follows: Figure 4 As shown, it includes an industrial water purification submodule and an irrigation water purification submodule.

[0051] The industrial water purification submodule receives chemical dosing instructions, backwashing instructions, and hardness adjustment instructions from the intelligent coupling control center module. It stores the adjusted industrial water to be used in the industrial water purification tank. Through coagulation sedimentation, quartz sand filtration, and hardness adjustment, it generates compliant industrial water to be used and transports it to the multi-scenario utilization module through pipelines. At the same time, it transmits the purification status data of the compliant industrial water to the intelligent coupling control center module. The purification status data of the compliant industrial water includes effluent hardness, filtration pressure difference, and chemical consumption.

[0052] In this embodiment, the industrial water purification submodule is designed to perform targeted purification of the regulated industrial water to be used, including coagulation sedimentation, quartz sand filtration, and hardness adjustment, specifically:

[0053] 1) According to the chemical dosing instructions sent by the control center, the industrial water to be regulated is subjected to coagulation and sedimentation, that is, polyaluminum chloride (PAC), abbreviated as polyaluminum, is added according to the instructions. It is quickly stirred in the industrial water purification tank to form flocs, and then sedimentation is carried out to remove suspended solids in the mine water. That is, when the suspended solids settle, the sediment settles down as sediment, and the upper layer is clean mine water.

[0054] 2) The mine water with suspended solids removed is filtered through quartz sand. That is, the settled mine water is fed into the filter tank, the filter media particle size and filtration speed are set, and the filter tank is started for backwashing according to the instructions, thereby generating filtered mine water.

[0055] 3) Adjust the hardness of the filtered mine water by adding scale inhibitor as instructed (in actual industrial applications, the scale inhibitor can be selected according to the purpose of water use) to control the total hardness and finally generate industrial water that meets the standards. At the same time, the purification status data of the industrial water that meets the standards, such as the hardness of the effluent, the filtration pressure difference, and the amount of reagent consumed, should be sent to the control center.

[0056] The irrigation water purification submodule receives bar screen cleaning instructions and disinfection intensity instructions from the intelligent coupling control center module. It stores the adjusted irrigation water to be used in the irrigation water purification tank. Through fine bar filtration, biological contact oxidation, and ultraviolet disinfection, it generates qualified irrigation water and transports it to the multi-scenario utilization module through pipelines. At the same time, it transmits the purification status data of the qualified irrigation water to the intelligent coupling control center module. The purification status data of the qualified irrigation water includes effluent COD and microbial count.

[0057] In this embodiment, the irrigation water purification submodule is designed to perform targeted purification of the regulated irrigation water, including fine grid filtration, biological contact oxidation, and ultraviolet disinfection, specifically:

[0058] 1) Fine screen filtration, which involves passing mine water through an automatic cleaning screen with a small aperture to remove residual small particulate impurities;

[0059] 2) Biological contact oxidation, which involves feeding mine water with minor impurities removed into a biological tank for microbial degradation of organic matter to control COD to less than or equal to 60 mg / L;

[0060] 3) Ultraviolet disinfection: After the mine water has been degraded by microorganisms, the intensity of ultraviolet light is adjusted according to instructions to eliminate bacteria that are harmful to the biological areas of agricultural irrigation, such as E. coli, to ensure irrigation safety. Finally, qualified irrigation water is generated. At the same time, the purification status data of the qualified irrigation water, such as effluent COD and microbial count, are recorded and sent to the control center.

[0061] The multi-scenario utilization module is used to receive supply control instructions sent by the intelligent coupling control center module, and deliver qualified industrial or irrigation water to the corresponding water use scenario for industrial or agricultural water supply utilization.

[0062] In this embodiment, the purpose of designing the multi-scenario utilization module is to accurately deliver qualified mine water to the corresponding water terminals, ensure on-demand supply through real-time feedback of water usage status, and serve as the system's water resource output terminal; the structure and connection relationship of the multi-scenario utilization module are as follows: Figure 5 As shown, it includes an industrial production water unit module and an agricultural irrigation water unit module. The industrial production water unit module is equipped with a pressure sensor and a flow sensor, while the agricultural irrigation water unit module is equipped with a flow sensor and a soil moisture sensor.

[0063] The industrial production water unit module receives frequency and pressure regulation commands from the variable frequency water supply pump sent by the intelligent coupling control center module. It then uses the variable frequency water supply pump to deliver industrial water to the industrial water supply scenario. The module also uses a pressure sensor to monitor the industrial pipeline pressure in real time and a flow sensor to monitor the real-time water consumption. Simultaneously, it transmits the water status data of the industrial production water unit module to the intelligent coupling control center module. The water status data of the industrial production water unit module includes the industrial pipeline pressure and the real-time water consumption.

[0064] In this embodiment, the industrial production water unit module adjusts the frequency of the variable frequency water supply pump according to instructions, and then delivers water to industrial water scenarios, such as underground dust suppression spray systems and equipment cooling systems, thereby realizing the water supply for industrial scenarios. At the same time, in the industrial water scenario, pressure sensors are also used to monitor the pressure of the industrial water pipeline network to ensure the normal operation of the water terminals. For example, when delivering water to the underground dust suppression spray system, if the pipeline pressure is too low, the water mist particles sprayed by the spray system will be too large and the range will be too short, failing to effectively capture and settle dust, resulting in a significant decrease in dust suppression effect and increasing the safety risks such as underground dust explosions. If the pressure is too high, it may damage the spray nozzles, causing nozzle blockage or breakage, which not only affects the dust suppression effect but also increases equipment maintenance costs and time. Secondly, flow sensors are used to monitor real-time water consumption. Simultaneously, water status data, such as pipeline pressure and real-time water consumption, are recorded and fed back to the control center for real-time adjustment of water supply.

[0065] The agricultural irrigation water unit module receives flow valve opening commands and irrigation timing commands from the intelligent coupling control center module. By adjusting the opening of the main pipeline flow valve, it delivers irrigation water to the agricultural water scenario. The branch pipeline automatically starts and stops according to the irrigation timing to supply agricultural water. It uses flow sensors to record the regional irrigation volume of the agricultural water supply scenario and soil moisture sensors to monitor the regional soil moisture of the agricultural water supply scenario to determine whether irrigation is sufficient. At the same time, it transmits the water status data of the agricultural irrigation water unit module to the intelligent coupling control center module. The water status of the agricultural irrigation water unit module includes irrigation flow and soil moisture.

[0066] In this embodiment, the agricultural irrigation water unit module adjusts the opening of the main pipeline flow valve according to the instruction (e.g., 50% corresponds to a flow rate of 80m³ / h), and the branch pipeline automatically starts and stops according to the irrigation sequence (e.g., 2 hours in the morning and evening), thereby realizing the water supply for agricultural water use scenarios; at the same time, the flow sensor records the regional irrigation amount, the soil moisture sensor assists in judging whether the irrigation is sufficient, and the water use status data, such as irrigation flow and soil moisture, are synchronously fed back to the control center.

[0067] The intelligent coupling control center module is used to receive monitoring status data from all modules, set initial system control commands, calculate water resource utilization rate and system energy consumption, set storage and operation constraints, establish a dual objective function of maximizing water resource utilization rate and minimizing system energy consumption, and use a multi-objective particle swarm optimization method for iterative solution to generate the optimal control command, so as to realize the hierarchical storage, regulation and multi-scenario water supply multi-objective collaborative coupling of the mine water resource comprehensive utilization system.

[0068] In this embodiment, the purpose of designing the intelligent coupling control center module is to receive monitoring status data from all modules and generate optimal control commands for each module using a multi-objective particle swarm optimization method, thereby achieving system synergistic coupling and serving as the decision-making core for multiple objectives. The inputs to the intelligent coupling control center module include: 1) liquid level (water level) data (industrial / irrigation regulating tank water level) and basic water quality data (suspended solids concentration, pH value, etc.) from the hierarchical storage and regulation module; 2) purification parameter data (such as coagulant dosage, filtration pressure difference, disinfection intensity, etc.) and effluent water quality data (industrial water hardness, irrigation water COD / E. coli, etc.) from the target-oriented purification module; and 3) real-time water usage data (such as industrial / irrigation water consumption, water terminal pressure, etc.) from the multi-scenario utilization module. ;4) Preset multi-objective constraints (storage constraints, equipment operation constraints); its output is: 1) Sending acquisition control commands (such as submersible pump start / stop / frequency) to the multi-source acquisition module; 2) Sending storage control commands (such as water flow distribution direction, stirring device start / stop, pool sewage discharge) to the hierarchical storage control module; 3) Sending purification control commands (such as chemical dosage, backwashing timing, disinfection intensity) to the target-oriented purification module; 4) Sending supply control commands (such as variable frequency pump frequency, flow valve opening) to the multi-scenario utilization module; Secondly, the intelligent coupling control center module can also output system status data (such as the operating parameters of each module, water quality compliance status) to the human-machine interface for real-time display and early warning; In addition, the specific process of generating the optimal control command using the multi-objective particle swarm optimization method is as follows:

[0069] First, based on the monitoring status data of all modules, the initial system control command is set as follows: , , , They represent the 1st, 2nd, and 3rd respectively. One control command.

[0070] In this embodiment, control commands ~ This is equivalent to all the commands in the previous modules, such as submersible pump start / stop and submersible pump frequency commands.

[0071] Secondly, based on system control commands, the water resource utilization rate and system energy consumption are calculated, namely:

[0072]

[0073]

[0074] in, This indicates the water resource utilization rate under system control commands. This indicates the total number of water usage scenarios, including industrial water supply scenarios. Indicates the first under system control command The actual water supply for each water use scenario This indicates the usable volume of mine water, representing the total amount of mine water that can be used for industrial production and agricultural irrigation. This indicates the system energy consumption under system control commands. This indicates the total number of power supply devices, which are the devices that provide energy support to all the above modules, such as submersible pumps. Indicates the first Taiwan power supply equipment under control commands The power below, Indicates the first Operating time of the power supply equipment This represents the total number of sub-modules for pretreatment, conditioning, and purification of mine water, i.e., the total number of water treatment units. This refers to the water treatment unit under system control commands. The energy consumption refers to the energy-consuming module among all the modules mentioned above, such as the water pretreatment submodule.

[0075] In this embodiment, by calculating water resource utilization rate and system energy consumption, a dual objective of maximizing water resources and minimizing system energy consumption is established in subsequent steps. This ensures efficient utilization of mine water resources while reducing system operating costs. Furthermore, by using particle swarm optimization to iteratively search for the Pareto optimal solution between the two objectives, the Pareto optimal solution between the two objectives is found. This avoids the unbalanced results caused by optimizing a single objective, ensuring that the system does not excessively restrict water supply in pursuit of extreme energy conservation, nor does it significantly increase energy consumption in order to blindly improve utilization rate.

[0076] Then, constraints are established, including storage constraints and device operation constraints, i.e.;

[0077]

[0078]

[0079] in, Indicates storage constraints, , These represent the upper and lower limits of the mine water level in the water storage tanks (referring to the regulating tank, purification tank, etc. in the above modules), which are the low and high water levels set by each of the above modules. This indicates the actual water level of the mine water in the storage tank. Indicates equipment operating constraints. , Indicates the first The effective range of a control command, such as the frequency command range for a submersible pump being 15Hz~50Hz. Indicates the first One control command.

[0080] Finally, under storage and equipment operation constraints, with the objectives of maximizing water resource utilization and minimizing system energy consumption, a multi-objective particle swarm optimization method is used for iterative solution to generate the optimal control command, specifically:

[0081] Each particle in the particle swarm corresponds to a set of control commands, including the frequency of each power supply device, the valve opening degree, and the amount of mine water regulated in the water storage tank.

[0082] In this embodiment, each particle corresponds to a set of control commands including the frequency of functional equipment, valve opening degree, and water storage tank adjustment amount, which can comprehensively cover various control parameters of the system; and in subsequent steps, through the dynamic update of particle speed and position, it can quickly respond to changes in monitoring status data such as water quantity and water quality in the mine water system, so that the system can make timely adjustments to the control strategy to adapt to different working conditions, such as changes in water demand at different times.

[0083] Update the particle velocity and position, that is:

[0084]

[0085]

[0086] in, Indicates the first Particle in the next iteration speed, Indicates inertia weight, , All represent learning factors. , All represent random numbers. Indicates the first Particle in the next iteration speed, Represents particles The individual optimal solution. This represents the globally optimal solution. Indicates the first Particle in the next iteration Location, Indicates the first Particle in the next iteration The location.

[0087] In this embodiment, inertia weight, learning factor, and random number are introduced into the particle swarm optimization method, so that the particle swarm optimization method can explore a wide range of possible control schemes during the iteration process, so as to accurately converge to the vicinity of the optimal solution. Compared with traditional optimization methods, it can find the optimal control command that satisfies the constraints more efficiently, reducing the cost of manual debugging and trial and error.

[0088] Based on the updated particle velocity and position, determine whether the maximum iteration state has been reached. If so, select the Pareto optimal solution with the objectives of maximizing water resource utilization and minimizing system energy consumption, and match the current monitoring status data from the optimal solution to generate real-time control commands. Otherwise, continue iterative optimization.

[0089] In this embodiment, during the iteration process, constraints such as the equipment operating range and the water level range of the storage tank are always followed to ensure that the generated control commands will not cause system failures, such as damage to the submersible pump due to over-frequency operation or water level exceeding the limit in the storage tank. Furthermore, based on the Pareto optimal solution and real-time monitoring status data, the optimal control commands are generated, which not only enables the system to operate stably in the optimal state, but also improves the reliability and service life of the mine water resource comprehensive utilization system.

[0090] like Figure 6 As shown, the method for comprehensive utilization of mine water resources based on multi-objective coupling includes the following steps:

[0091] S1. The intelligent coupling control center module sends acquisition and control commands to the multi-source mine water acquisition module, and the multi-source mine water acquisition module then acquires mine water from different areas underground according to the acquisition and control commands.

[0092] S2. The intelligent coupling control center module sends storage control instructions to the hierarchical storage control module. The hierarchical storage control module then stores and controls the mine water in different levels according to the storage control instructions and the intended use of the mine water, generating regulated industrial water or irrigation water for use.

[0093] S3. The intelligent coupling control center module sends a purification control command to the target-oriented purification module. The target-oriented purification module then performs targeted purification treatment on the adjusted industrial water or irrigation water according to the purification control command, generating qualified industrial water or irrigation water.

[0094] S4. The intelligent coupling control center module sends supply control instructions to the multi-scenario utilization module. The multi-scenario utilization module then delivers the qualified industrial or irrigation water to the corresponding water use scenario according to the supply control instructions for industrial or agricultural water supply utilization.

[0095] S5. The monitoring status data of the multi-source mine water acquisition module, hierarchical storage and regulation module, target-oriented purification module, and multi-scenario utilization module are fed back to the intelligent coupling control center module in real time. The intelligent coupling control center module then uses the multi-target particle swarm optimization method to perform data analysis and iterative optimization based on the monitoring status data of each module, and generates control commands for the corresponding modules.

[0096] In summary, the mine water resource comprehensive utilization system and method based on multi-objective coupling proposed in this invention differs from traditional single-objective mine water utilization systems (such as focusing only on water resource utilization rate or only controlling energy consumption). It proposes a dual objective of maximizing water resource utilization rate and minimizing system energy consumption. Through an intelligent coupling control center, it achieves multi-objective collaborative optimization, resolving the contradiction in traditional systems where high utilization rate is accompanied by high energy consumption or low energy consumption sacrifices utilization rate, thus forming a globally optimal control mechanism. Secondly, the designed intelligent coupling control center module receives monitoring data from various modules and iteratively solves the problem using a multi-objective particle swarm optimization method to generate optimal control commands, realizing a shift from passive response to active optimization. This dynamic control mechanism can adapt to complex situations such as differences in water quality in different underground areas and changes in water demand in various scenarios, improving the system's adaptability and accuracy. Simultaneously, it integrates multi-source acquisition, hierarchical storage and adjustment, target-oriented purification, and multi-scenario utilization through intelligent coupling control. The system is organically interconnected, forming a closed-loop system of collection, storage, purification, utilization, and regulation. Each module no longer operates independently but collaborates through regulatory commands. For example, it optimizes collection strategies based on water usage scenarios and dynamically adjusts purification parameters according to water quality conditions, achieving highly efficient collaboration throughout the entire process. Furthermore, the designed hierarchical storage and regulation module provides differentiated storage and regulation based on usage, while the target-oriented purification module treats industrial and irrigation water according to different standards, avoiding over- or under-purification. This ensures water quality meets standards while reducing unnecessary energy consumption, reflecting a refined design approach of on-demand processing. Therefore, the system proposed in this invention, through multi-target collaboration, intelligent dynamic regulation, full-process collaboration, and refined processing, overcomes the limitations of traditional mine water resource utilization systems or methods in terms of single-target operation, passive regulation, and fragmented processes, ultimately greatly improving the utilization rate of mine water resources.

[0097] Specific embodiments have been used to illustrate the principles and implementation methods of this invention. The descriptions of the embodiments above are only for the purpose of helping to understand the method and core ideas of this invention. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the ideas of this invention. Therefore, the content of this specification should not be construed as a limitation of this invention.

[0098] Those skilled in the art will recognize that the embodiments described herein are intended to help the reader understand the principles of the invention, and should be understood that the scope of protection of the invention is not limited to such specific statements and embodiments. Those skilled in the art can make various other specific modifications and combinations based on the technical teachings disclosed in this invention without departing from the spirit of the invention, and these modifications and combinations are still within the scope of protection of this invention.

Claims

1. A comprehensive mine water resource utilization system based on multi-objective coupling, characterized in that, include: The multi-source mine water acquisition module is used to receive acquisition and control commands sent by the intelligent coupling control center module, collect mine water from different areas underground, and transport it to the hierarchical storage module through pipelines. The hierarchical storage and regulation module is used to receive storage and regulation instructions sent by the intelligent coupling and regulation center module, and to store the mine water in a hierarchical manner according to the purpose of the mine water. After storing it as industrial water or irrigation water, the mine water is regulated to generate regulated industrial water or irrigation water, and then transported to the target-oriented purification module through pipeline. The target-oriented purification module is used to receive purification and control instructions sent by the intelligent coupling control center module, perform targeted purification treatment on the industrial water or irrigation water to be regulated, generate qualified industrial water or irrigation water, and transport it to the multi-scenario utilization module through pipelines. The multi-scenario utilization module is used to receive supply control instructions sent by the intelligent coupling control center module and deliver qualified industrial or irrigation water to the corresponding water use scenario for industrial or agricultural water supply utilization. The intelligent coupling control center module is used to receive monitoring status data from all modules, set initial system control commands, calculate water resource utilization rate and system energy consumption, set storage and operation constraints, establish a dual objective function of maximizing water resource utilization rate and minimizing system energy consumption, and use a multi-objective particle swarm optimization method for iterative solution to generate the optimal control command, so as to realize the hierarchical storage, regulation and multi-scenario water supply multi-objective collaborative coupling of the mine water resource comprehensive utilization system.

2. The mine water resource comprehensive utilization system based on multi-objective coupling according to claim 1, characterized in that, The multi-source mine water acquisition module includes an underground water collection submodule and a water pretreatment submodule. The underground water collection submodule is equipped with a submersible pump, and the water pretreatment submodule is equipped with a mechanical bar screen. The underground water collection submodule is used to collect mine water from different areas underground using submersible pumps according to the start / stop and frequency commands of the submersible pumps sent by the intelligent coupling control center module, and transport it to the water pretreatment module through pipelines. At the same time, it transmits the status data of the submersible pumps to the intelligent coupling control center module. The status data of the submersible pumps includes the submersible pump operating current, pumping time, and real-time flow rate. The water pretreatment submodule is used to remove large impurities from the mine water in different areas underground by mechanical bar screens according to the bar screen cleaning instructions sent by the intelligent coupling control center module, and then transport it to the graded storage module through pipelines.

3. The mine water resource comprehensive utilization system based on multi-objective coupling according to claim 1, characterized in that, The graded storage and regulation module includes an industrial water regulation tank module and an irrigation water regulation tank module, and both the industrial water regulation tank module and the irrigation water regulation tank module are equipped with a liquid level sensor, a water quality monitoring sensor and a stirring device. The industrial water regulating tank module receives water flow distribution direction, stirring start / stop, and sewage discharge commands from the intelligent coupling control center module. It receives and stores mine water after removing large impurities, uses a level sensor to monitor the mine water level in real time, and uses a water quality monitoring sensor to monitor the suspended solids concentration and pH value in the mine water in real time. It is programmed to discharge periodically to remove accumulated sludge from the bottom of the tank, ultimately generating regulated industrial water for later use. This regulated water is then transported through pipelines to the target-oriented purification module. Simultaneously, the stored status data of the regulated industrial water for later use is transmitted to the intelligent coupling control center module. This stored status data includes water level, suspended solids concentration, and pH value. The irrigation water regulating tank module receives water flow distribution direction, stirring start / stop, and sewage discharge commands from the intelligent coupling control center module. It receives and stores mine water after removing large impurities, monitors the mine water level in real time using a level sensor, and monitors the concentration of suspended solids, initial COD, and number of microorganisms in the mine water in real time using a water quality monitoring sensor. It sets up periodic sewage discharge to remove the sludge accumulated at the bottom of the tank, ultimately generating irrigation water ready for use. This water is then transported through pipelines to the target-oriented purification module. Simultaneously, the stored status data of the irrigation water ready for use is transmitted to the intelligent coupling control center module. The stored status data of the irrigation water ready for use includes water level, initial COD, and number of microorganisms.

4. The mine water resource comprehensive utilization system based on multi-objective coupling according to claim 3, characterized in that, The specific process of using a liquid level sensor to monitor the mine water level in real time is as follows: If the mine water level is lower than the preset low water level threshold, a water replenishment request command is sent to the intelligent coupling control center module. Otherwise, if the mine water level is higher than the preset high water level threshold, a water level warning command is sent to the intelligent coupling control center module to stop the delivery of mine water. Otherwise, no action is taken.

5. The mine water resource comprehensive utilization system based on multi-objective coupling according to claim 3, characterized in that, The specific process of using water quality monitoring sensors to monitor the concentration of suspended solids in the water of a mine in preparation for use in real time is as follows: Based on the concentration of suspended solids, determine whether the suspended solids have settled. If so, start the stirring device to stir; otherwise, do not take any action.

6. The mine water resource comprehensive utilization system based on multi-objective coupling according to claim 1, characterized in that, The target-oriented purification module includes an industrial water purification submodule and an irrigation water purification submodule; The industrial water purification submodule receives chemical dosing instructions, backwashing instructions, and hardness adjustment instructions from the intelligent coupling control center module. It stores the adjusted industrial water to be used in the industrial water purification tank. Through coagulation sedimentation, quartz sand filtration, and hardness adjustment, it generates compliant industrial water to be used and transports it to the multi-scenario utilization module via pipeline. At the same time, it transmits the purification status data of the compliant industrial water to the intelligent coupling control center module. The purification status data of the compliant industrial water includes effluent hardness, filtration pressure difference, and chemical consumption. The irrigation water purification submodule receives bar screen cleaning instructions and disinfection intensity instructions from the intelligent coupling control center module. It stores the adjusted irrigation water to be used in the irrigation water purification tank. Through fine bar filtration, biological contact oxidation, and ultraviolet disinfection, it generates qualified irrigation water and transports it to the multi-scenario utilization module through pipelines. At the same time, it transmits the purification status data of the qualified irrigation water to the intelligent coupling control center module. The purification status data of the qualified irrigation water includes effluent COD and microbial count.

7. The mine water resource comprehensive utilization system based on multi-objective coupling according to claim 1, characterized in that, The multi-scenario utilization module includes an industrial production water unit module and an agricultural irrigation water unit module. The industrial production water unit module is equipped with a pressure sensor and a flow sensor, while the agricultural irrigation water unit module is equipped with a flow sensor and a soil moisture sensor. The industrial production water unit module receives frequency and pressure regulation commands from the variable frequency water supply pump sent by the intelligent coupling control center module. It then uses the variable frequency water supply pump to deliver industrial water to the industrial water supply scenario. The module also uses a pressure sensor to monitor the industrial pipeline pressure in real time and a flow sensor to monitor the real-time water consumption. Simultaneously, it transmits the water status data of the industrial production water unit module to the intelligent coupling control center module. The water status data of the industrial production water unit module includes the industrial pipeline pressure and the real-time water consumption. The agricultural irrigation water unit module receives flow valve opening commands and irrigation timing commands from the intelligent coupling control center module. By adjusting the opening of the main pipeline flow valve, it delivers irrigation water to the agricultural water scenario. The branch pipeline automatically starts and stops according to the irrigation timing to supply agricultural water. It uses flow sensors to record the regional irrigation volume of the agricultural water supply scenario and soil moisture sensors to monitor the regional soil moisture of the agricultural water supply scenario to determine whether irrigation is sufficient. At the same time, it transmits the water status data of the agricultural irrigation water unit module to the intelligent coupling control center module. The water status of the agricultural irrigation water unit module includes irrigation flow and soil moisture.

8. The comprehensive utilization system for mine water resources based on multi-objective coupling according to claim 1, characterized in that, The intelligent coupled control center module receives monitoring status data from all modules, sets initial system control commands, calculates water resource utilization and system energy consumption, and establishes a dual objective function to maximize water resource utilization and minimize system energy consumption after setting storage and operational constraints. This function is then iteratively solved using a multi-objective particle swarm optimization method to generate the optimal control commands. Specifically: First, based on the monitoring status data of all modules, the initial system control command is set as follows: , , , They represent the 1st, 2nd, and 3rd respectively. One control command; Secondly, based on system control commands, the water resource utilization rate and system energy consumption are calculated, namely: in, This indicates the water resource utilization rate under system control commands. This indicates the total number of water usage scenarios. Indicates the first under system control command The actual water supply for each water use scenario Indicates the available water volume in the mine. This indicates the system energy consumption under system control commands. Indicates the total number of power supply devices. Indicates the first Taiwan power supply equipment under control commands The power below, Indicates the first Operating time of the power supply equipment Indicates the total number of water treatment units. This refers to the water treatment unit under system control commands. Energy consumption; Then, constraints are established, including storage constraints and device operation constraints, i.e.; in, Indicates storage constraints, , These represent the upper and lower limits of the mine water level in the water storage tank, respectively. This indicates the actual water level of the mine water in the storage tank. Indicates equipment operating constraints. , Indicates the first The effective range of each control command Indicates the first One control command; Finally, under storage and equipment operation constraints, with the dual objectives of maximizing water resource utilization and minimizing system energy consumption, a multi-objective particle swarm optimization method is used for iterative solution to generate the optimal control command, specifically: Each particle in the particle swarm corresponds to a set of control commands, including the frequency of each power supply device, the valve opening degree, and the amount of mine water regulated in the water storage tank; Update the particle velocity and position, that is: in, Indicates the first Particle in the next iteration speed, Indicates inertia weight, , All represent learning factors. , All represent random numbers. Indicates the first Particle in the next iteration speed, Represents particles The individual optimal solution. This represents the globally optimal solution. Indicates the first Particle in the next iteration Location, Indicates the first Particle in the next iteration Location; Based on the updated particle velocity and position, determine whether the maximum iteration state has been reached. If so, select the Pareto optimal solution with the objectives of maximizing water resource utilization and minimizing system energy consumption, and match the current monitoring status data from the optimal solution to generate real-time control commands. Otherwise, continue iterative optimization.

9. A method for comprehensive utilization of mine water resources based on multi-objective coupling, characterized in that, Applied to the system as described in any one of claims 1-8, comprising the following steps: S1. The intelligent coupling control center module sends acquisition and control commands to the multi-source mine water acquisition module, and the multi-source mine water acquisition module then acquires mine water from different areas underground according to the acquisition and control commands. S2. The intelligent coupling control center module sends storage control instructions to the hierarchical storage control module. The hierarchical storage control module then stores and controls the mine water in different levels according to the storage control instructions and the intended use of the mine water, generating regulated industrial water or irrigation water for use. S3. The intelligent coupling control center module sends a purification control command to the target-oriented purification module. The target-oriented purification module then performs targeted purification treatment on the adjusted industrial water or irrigation water according to the purification control command, generating qualified industrial water or irrigation water. S4. The intelligent coupling control center module sends supply control instructions to the multi-scenario utilization module. The multi-scenario utilization module then delivers the qualified industrial or irrigation water to the corresponding water use scenario according to the supply control instructions for industrial or agricultural water supply utilization. S5. The monitoring status data of the multi-source mine water acquisition module, hierarchical storage and regulation module, target-oriented purification module, and multi-scenario utilization module are fed back to the intelligent coupling control center module in real time. The intelligent coupling control center module then uses the multi-target particle swarm optimization method to perform data analysis and iterative optimization based on the monitoring status data of each module, and generates control commands for the corresponding modules.

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