A limestone slurry tank liquid level adjustment system and method
By combining the multi-signal collaboration strategy of feedforward adjustment, feedback adjustment and process water interlocking control in the limestone slurry tank liquid level adjustment system, the problem that traditional systems cannot meet the liquid level stability requirements is solved, and efficient and accurate liquid level adjustment and stable system operation is achieved.
Patent Information
- Application Number
- CN202411714783.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-27
- Publication Date
- 2025-04-08
AI Technical Summary
When the recovery water flow rate changes or process water demand fluctuates, the traditional limestone slurry tank liquid level adjustment system cannot meet the requirements of the desulfurization system for liquid level stability, resulting in large fluctuations in liquid level and difficulty in real-time response.
The combination of feedforward adjustment module, liquid level feedback adjustment module, process water interlocking module and logic control module is adopted to realize dynamic adjustment and stable control of liquid level by monitoring and recovering water flow signals, measuring liquid level in real time, predicting liquid level trends and generating adjustment instructions.
It significantly improves the response speed and control accuracy of liquid level adjustment, reduces system energy consumption and operating costs, and ensures the stable operation of the desulfurization system under complex operating conditions.
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Figure CN119781532A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the field of industrial water treatment, and in particular to a limestone slurry tank level regulating system and method. Background Art
[0002] In the limestone-gypsum wet flue gas desulfurization system, the stability of the limestone slurry tank level has an important impact on the operating efficiency of the entire system. Traditional liquid level control systems usually use single-loop automatic adjustment and rely only on liquid level feedback signals to control water replenishment or drainage. However, due to the slow liquid level adjustment speed, the liquid level is prone to large fluctuations, especially when the recycled water flow rate changes or the process water demand fluctuates drastically, which cannot meet the desulfurization system's requirements for liquid level stability.
[0003] In the prior art, the recycled water and process water systems operate independently, manual adjustments are frequent and complex, and the automatic control strategy is single, making it difficult to respond to liquid level changes in real time. To address the above issues, a regulation method is needed that can dynamically predict liquid level trends and combine multiple signal inputs to achieve linkage control, thereby improving the speed and accuracy of liquid level regulation and meeting the stability requirements of system operation. Summary of the invention
[0004] In a first aspect of the present disclosure, a limestone slurry tank level adjustment system is provided, the system comprising:
[0005] A feedforward regulation module, used for monitoring the flow signal of the recycled water to the limestone slurry tank, predicting the change trend of the liquid level of the limestone slurry tank according to the flow signal, and generating a regulation instruction;
[0006] A liquid level feedback adjustment module, used to obtain a real-time liquid level measurement value of the limestone slurry tank, and control the opening of the electric door of the recycled water to the limestone slurry tank according to the deviation between the real-time liquid level measurement value and the liquid level setting value, so as to perform liquid level adjustment;
[0007] A process water interlock module, used to control the opening or closing of the electric door of the process water to the limestone slurry tank when the liquid level of the limestone slurry tank exceeds a preset threshold range;
[0008] The logic control module is used to receive control signals from the feedforward regulation module, the liquid level feedback regulation module and the process water interlock module, and dynamically adjust the liquid level of the limestone slurry tank through logic configuration.
[0009] In combination with the first aspect, the feedforward adjustment module includes:
[0010] A flow monitoring unit, used for collecting the flow signal of the recycled water to the limestone slurry tank in real time;
[0011] A trend prediction unit, used to predict the dynamic change direction of the limestone slurry tank level according to the change rate and trend of the recycled water flow;
[0012] The feedforward instruction generation unit is used to generate corresponding liquid level adjustment preprocessing instructions according to the trend prediction results.
[0013] In combination with the first aspect, the liquid level feedback adjustment module includes:
[0014] A liquid level sensor, used for measuring the liquid level of the limestone slurry tank in real time;
[0015] A deviation calculation unit, used for calculating the liquid level deviation according to the liquid level setting value and the real-time liquid level measurement value;
[0016] A PID control unit is used to generate a regulating signal for recycling water to the electric door of the limestone slurry tank according to the liquid level deviation.
[0017] In combination with the first aspect, the process water interlock module includes:
[0018] A threshold judgment unit, used to judge whether the liquid level of the limestone slurry tank exceeds a preset upper or lower threshold according to the liquid level measurement value;
[0019] The interlock control unit is used to delay the triggering of the opening and closing action of the process water electric door when the liquid level exceeds the limit.
[0020] In combination with the first aspect, the logic control module includes:
[0021] A logic operation unit, used to integrate the prediction instructions of the feedforward regulation module, the real-time adjustment signal of the liquid level feedback regulation module, and the emergency control signal of the process water interlock module;
[0022] The control unit is used to adjust the participation weight of each module signal in liquid level regulation through a dynamic weighting strategy to achieve dynamic control of the liquid level.
[0023] A second aspect of the present disclosure provides a method for adjusting the liquid level of a limestone slurry tank, comprising:
[0024] By recycling the flow signal of water to the limestone slurry tank, the change trend of the liquid level is predicted and a feedforward adjustment instruction is generated;
[0025] Real-time monitoring of the liquid level of the limestone slurry tank, calculation of the deviation between the liquid level setting value and the real-time measurement value, and generation of a liquid level feedback adjustment signal;
[0026] When the liquid level in the limestone slurry tank exceeds the preset threshold range, the process water interlock control is triggered, and the liquid level is restored by adjusting the process water electric door control;
[0027] The dynamic control of the liquid level is achieved by dynamically weighted adjustment of the participation weights of the feedforward regulation instruction, the liquid level feedback regulation signal and the process water interlock control signal in the liquid level regulation.
[0028] In combination with the second aspect, the method of predicting the change trend of the liquid level by the flow signal of the recycled water to the limestone slurry tank and generating the feedforward adjustment instruction includes:
[0029] Obtain recycled water flow signal in real time;
[0030] Calculate the change rate of the recycled water flow rate and deduce the dynamic trend of the liquid level based on the change rate;
[0031] A feedforward control instruction is generated based on the predicted liquid level trend to adjust the opening of the electric door for recycled water.
[0032] In combination with the second aspect, when the limestone slurry tank liquid level exceeds a preset threshold range, triggering process water interlock control includes:
[0033] When the liquid level measurement value is higher than the upper threshold, the delay triggers the closing of the electric door from the process water to the limestone slurry tank to limit the liquid level from rising further;
[0034] When the liquid level measurement value is lower than the lower threshold, the delay trigger opens the electric door of the process water to the limestone slurry tank to replenish the liquid level and quickly restore it to the set value;
[0035] The delayed trigger time is a preset protection delay, which is used to prevent short-term fluctuations from falsely triggering the interlocking control.
[0036] According to a third aspect of the present disclosure, an electronic device is provided, including:
[0037] one or more processors;
[0038] A storage unit is used to store one or more programs, which, when executed by the one or more processors, enable the one or more processors to implement any of the above-mentioned limestone slurry tank level adjustment methods.
[0039] According to a fourth aspect of the present disclosure, a computer-readable storage medium is provided, on which a computer program is stored. When the computer program is executed by a processor, any of the above-mentioned methods for regulating the liquid level of a limestone slurry tank can be implemented.
[0040] Beneficial effects: By combining the multi-signal coordination strategy of feedforward regulation, feedback regulation and process water interlock control, efficient and accurate regulation of the limestone slurry tank level is achieved. The liquid level change trend is predicted by recycling the water flow signal and generating a feedforward regulation instruction, the liquid level deviation is monitored in real time and a feedback regulation signal is generated. At the same time, the process water interlock control is triggered when the liquid level exceeds the preset threshold to ensure that the liquid level quickly returns to the set range. The response speed and control accuracy of the liquid level regulation are significantly improved, the system energy consumption and operating costs are reduced, and the stable operation of the desulfurization system under complex working conditions is ensured. BRIEF DESCRIPTION OF THE DRAWINGS
[0041] Figure 1 It is a structural schematic diagram of a limestone slurry tank liquid level adjustment system according to an embodiment of the present disclosure;
[0042] Figure 2 A schematic flow chart of a method for adjusting the liquid level of a limestone slurry tank according to an embodiment of the present disclosure;
[0043] Figure 3 It is a schematic diagram of the structure of an electronic device according to an embodiment of the present disclosure. DETAILED DESCRIPTION
[0044] Here, exemplary embodiments are described in detail, and examples thereof are shown in the accompanying drawings. When the following description refers to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The implementations described in the following exemplary embodiments do not represent all implementations consistent with the embodiments of the present disclosure.
[0045] The terms used in the disclosed embodiments are only for the purpose of describing specific embodiments and are not intended to limit the disclosed embodiments. The singular forms of "a", "said" and "the" used in the disclosed embodiments and the appended claims are also intended to include plural forms unless the context clearly indicates other meanings. It should also be understood that the term "and / or" used herein refers to and includes any or all possible combinations of one or more associated listed items.
[0046] It should be understood that although the terms first, second, third, etc. may be used to describe various information in the disclosed embodiments, these information should not be limited to these terms. These terms are only used to distinguish the same type of information from each other. For example, without departing from the scope of the disclosed embodiments, the first information may also be referred to as the second information, and similarly, the second information may also be referred to as the first information. Depending on the context, the word "if" as used herein may be interpreted as "at the time of" or "when" or "in response to determining".
[0047] like Figure 1FIG. 1 is a schematic diagram of a limestone slurry tank level regulating system according to an embodiment of the present disclosure. The system comprises:
[0048] A feedforward regulation module 110 is used to monitor the flow signal of the recycled water to the limestone slurry tank, predict the change trend of the liquid level of the limestone slurry tank according to the flow signal, and generate a regulation instruction;
[0049] The liquid level feedback adjustment module 120 is used to obtain the real-time liquid level measurement value of the limestone slurry tank, and control the opening of the electric door of the recycled water to the limestone slurry tank according to the deviation between the real-time liquid level measurement value and the liquid level setting value, so as to perform liquid level adjustment;
[0050] A process water interlock module 130, for controlling the opening or closing of an electric door of the process water to the limestone slurry tank when the liquid level of the limestone slurry tank exceeds a preset threshold range;
[0051] The logic control module 140 is used to receive control signals from the feedforward regulation module, the liquid level feedback regulation module and the process water interlock module, and dynamically adjust the liquid level of the limestone slurry tank through logic configuration.
[0052] Specifically, the feedforward regulation module (module 110) mainly monitors the flow signal from the recycled water pipeline into the limestone slurry tank and uses the flow data to predict the change trend of the liquid level. It issues regulation instructions in advance before the actual change of the liquid level occurs to pre-process the upcoming fluctuation.
[0053] Note: For example, when the recycled water flow increases, the module can predict that the liquid level may rise, so it generates instructions in advance to adjust the opening of other electric doors to prevent the liquid level from exceeding the set value.
[0054] Through data modeling or historical traffic curve analysis, the module can gradually optimize the prediction algorithm and improve the ability to judge complex fluctuation trends, making the adjustment more accurate.
[0055] The liquid level feedback adjustment module (module 120) generates a feedback adjustment signal based on the deviation between the real-time measurement value of the liquid level and the preset liquid level target (set value). It is mainly responsible for dynamically adjusting the opening of the water recovery electric door to keep the liquid level stable within the set range.
[0056] Note: For example, if the liquid level measurement value is lower than the set value, the system will appropriately increase the opening of the recycled water electric door to allow more recycled water to enter the tank to increase the liquid level.
[0057] This module can be further combined with the PID control algorithm to smooth the control signal through proportional, integral and differential operations to reduce liquid level fluctuations.
[0058] The process water interlock module (module 130) is responsible for emergency interlock control, and automatically triggers the opening and closing operation of the process water pipeline electric door when the liquid level exceeds the set upper and lower limit thresholds. It is a safety protection measure to ensure that the system can quickly restore the liquid level to normal under extreme working conditions.
[0059] Note: For example, when the liquid level is too low (less than the threshold), the module will quickly open the process water electric door to add process water to the slurry tank; when the liquid level is too high (greater than the threshold), the module will automatically close the process water electric door and stop the process water input.
[0060] By setting the thresholds in different levels (e.g., normal range, warning range, and danger range), the module can respond more flexibly to different degrees of liquid level abnormalities.
[0061] The logic control module (module 140) is the core of the entire system and is responsible for receiving control signals from the feedforward control module, the liquid level feedback control module and the process water interlock module. Through logic configuration, the weight of each module's participation in liquid level control is dynamically calculated and adjusted.
[0062] Note: For example, when the predicted liquid level change trend (feedforward signal) is consistent with the real-time measurement deviation (feedback signal), the logic module will give priority to the feedforward instruction for adjustment; and when the liquid level suddenly becomes abnormal, the priority of the interlock signal will be quickly increased.
[0063] Artificial intelligence or machine learning technology can be used to analyze and learn historical operating data, dynamically adjust the logical strategies of each module, and further optimize the liquid level regulation effect.
[0064] Beneficial effects: The system uses a feedforward-feedback-interlocking adjustment method to not only predict and handle liquid level changes in advance, but also respond to dynamic changes in real time and provide emergency protection. Feedforward adjustment allows the system to take measures in advance, reducing the possibility of liquid level exceeding the limit. Feedback adjustment combined with logic optimization can achieve more accurate liquid level control. Interlocking control, as a safety guarantee, provides strong protection for the stable operation of the system. Effectively improve the operating efficiency and stability of the desulfurization system.
[0065] like Figure 2 FIG. 1 is a flow chart of a method for adjusting the liquid level of a limestone slurry tank according to an embodiment of the present disclosure, comprising:
[0066] S201: predicting the change trend of the liquid level through the flow signal of the recycled water to the limestone slurry tank and generating a feedforward adjustment instruction;
[0067] S202: real-time monitoring of the liquid level of the limestone slurry tank, calculating the deviation between the liquid level setting value and the real-time measurement value, and generating a liquid level feedback adjustment signal;
[0068] S203: When the liquid level in the limestone slurry tank exceeds a preset threshold range, the process water interlock control is triggered, and the liquid level is restored by adjusting the process water electric door control;
[0069] S204: Dynamically weighted adjustment of the participation weights of the feedforward adjustment instruction, the liquid level feedback adjustment signal and the process water interlock control signal in liquid level adjustment is performed to achieve dynamic liquid level control.
[0070] S201: Predict the change trend of the liquid level through the flow signal of the recycled water to the limestone slurry tank and generate a feedforward adjustment command: The system monitors the flow signal of the recycled water entering the limestone slurry tank and combines historical data or algorithm models to predict the trend of the liquid level change (such as increase or decrease) in advance. The prediction results are used to generate feedforward adjustment commands to command the system to take measures in advance to avoid excessive fluctuations in the liquid level.
[0071] Note: For example, when the system detects a rapid increase in the recycled water flow rate, it can determine in advance that the liquid level will rise, and generate an instruction to reduce the opening of the recycled water electric door, thereby reducing the amount of recycled water entering the tank, thereby suppressing excessively high liquid levels.
[0072] Optionally, a data-driven model (such as a machine learning algorithm) can be introduced to deeply explore the relationship between the recycled water flow rate and the liquid level change, and continuously optimize the prediction accuracy; at the same time, a lag compensation mechanism can be added to reduce the impact of prediction errors on the regulation effect.
[0073] S202: Real-time monitoring of the liquid level of the limestone slurry tank, calculation of the deviation between the liquid level setting value and the real-time measurement value, and generation of a liquid level feedback adjustment signal: Real-time monitoring of the actual value of the liquid level of the limestone slurry tank, comparison with the target setting value, and calculation of the deviation between the two. A feedback adjustment signal is generated according to the deviation, and the opening of the electric door of the recovered water is dynamically adjusted to ensure that the liquid level is maintained within the set range.
[0074] Note: For example, if the actual liquid level is lower than the set value, the feedback regulation signal will instruct the system to increase the input of recycled water; otherwise, it will reduce the input.
[0075] Combined with the PID control algorithm (proportional-integral-differential), the adjustment signal is smoothed to avoid system oscillation caused by over-adjustment. In addition, the adaptive control method can be combined to dynamically adjust the PID parameters according to the operating conditions to improve the response speed and stability of the system.
[0076] S203: When the liquid level in the limestone slurry tank exceeds the preset threshold range, the process water interlock control is triggered, and the liquid level is restored by adjusting the process water electric door: When the liquid level exceeds the normal range (such as too high or too low), the system starts the process water interlock protection measures, and quickly adjusts the liquid level to the normal value by controlling the opening or closing of the process water electric door.
[0077] Note: For example, when the liquid level is lower than the preset lower limit, the process water electric door automatically opens to replenish process water for the tank; when the liquid level is higher than the upper limit, the electric door closes to stop the inflow of process water, thereby restoring the liquid level.
[0078] For example: when the deviation between the set value of the limestone slurry tank level and the real-time measurement value is greater than 0.08, the system will automatically open the valve for recycling water to the limestone slurry tank after a delay of 2 seconds to replenish recycled water to increase the liquid level. Conversely, when the deviation is less than 0.05, the system will automatically close the recycled water valve after a delay of 2 seconds and stop replenishing recycled water.
[0079] Multi-level interlock protection (such as early warning and severe alarm) can be set according to the severity of the liquid level deviation to achieve more precise interlock control; at the same time, combined with redundant design, in the event of recovery water regulation failure, the process water interlock module can take over the regulation task to ensure system safety.
[0080] S204: Dynamically weighted adjustment of the participation weights of the feedforward control instruction, the liquid level feedback control signal and the process water interlock control signal in the liquid level control is performed to achieve dynamic control of the liquid level: the system uniformly inputs the feedforward control signal, the feedback control signal and the interlock control signal into the logic module, and allocates the weights of the three in the liquid level control through a dynamic weighted algorithm to achieve comprehensive control of the liquid level.
[0081] Note: For example, when the liquid level is close to the set value, the system may reduce the weight of the feedback control signal and rely more on the accurate prediction of the feedforward control signal; when the liquid level exceeds the normal range, the system will increase the priority of the interlock control signal to ensure rapid recovery of the liquid level.
[0082] It can be combined with fuzzy control or neural network algorithms to dynamically adjust the weight distribution strategy according to historical data and current operating conditions to improve the system's adaptability and regulation efficiency under complex conditions.
[0083] The electronic device 300 may be a desktop computer, a notebook, a PDA, a cloud server, or other electronic device. The electronic device 300 may include, but is not limited to, a processor 301 and a memory 302. Those skilled in the art will appreciate that Figure 3It is only an example of the electronic device 300 and does not constitute a limitation of the electronic device 300. It may include more or fewer components than shown in the figure, or a combination of certain components, or different components. For example, the electronic device may also include input and output devices, network access devices, buses, etc.
[0084] The processor 301 may be a central processing unit (CPU), or other general-purpose processors, digital signal processors (DSP), application-specific integrated circuits (ASIC), field programmable gate arrays (FPGA), or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. A general-purpose processor may be a microprocessor or the processor may be any conventional processor, etc.
[0085] The memory 302 may be an internal storage unit of the electronic device 300, for example, a hard disk or memory of the electronic device 300. The memory 302 may also be an external storage device of the electronic device 300, for example, a plug-in hard disk, a smart media card (SMC), a secure digital (SD) card, a flash card, etc. equipped on the electronic device 300. Further, the memory 302 may also include both an internal storage unit of the electronic device 300 and an external storage device. The memory 302 is used to store the computer program 303 and other programs and data required by the electronic device. The memory 302 may also be used to temporarily store data that has been output or is to be output.
[0086] Those skilled in the art can clearly understand that, for the convenience and simplicity of description, only the division of the above-mentioned functional units and modules is used as an example for illustration. In practical applications, the above-mentioned function allocation can be completed by different functional units and modules as needed, that is, the internal structure of the device can be divided into different functional units or modules to complete all or part of the functions described above. The functional units and modules in the embodiments can be integrated into a processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit. The above-mentioned integrated unit can be implemented in the form of hardware or in the form of software functional units. In addition, the specific names of the functional units and modules are only for the convenience of distinguishing each other, and are not used to limit the scope of protection of the present disclosure. The specific working process of the units and modules in the above-mentioned system can refer to the corresponding process in the aforementioned method embodiment, which will not be repeated here.
[0087] In the above embodiments, the description of each embodiment has its own emphasis. For parts that are not described or recorded in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.
[0088] Those of ordinary skill in the art will appreciate that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered to be beyond the scope of this disclosure.
[0089] In the embodiments provided in the present disclosure, it should be understood that the disclosed devices / electronic devices and methods can be implemented in other ways. For example, the device / electronic device embodiments described above are merely schematic. For example, the division of modules or units is only a logical function division. There may be other division methods in actual implementation. Multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed may be through some interfaces, indirect coupling or communication connection of devices or units, which may be electrical, mechanical or other forms.
[0090] The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.
[0091] In addition, each functional unit in each embodiment of the present disclosure may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit. The above-mentioned integrated unit may be implemented in the form of hardware or in the form of software functional units.
[0092] If the integrated module / unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the present disclosure implements all or part of the processes in the above-mentioned embodiment method, and can also be completed by instructing the relevant hardware through a computer program. The computer program can be stored in a computer-readable storage medium, and the computer program can implement the steps of the above-mentioned various method embodiments when executed by the processor. The computer program may include computer program code, and the computer program code may be in source code form, object code form, executable file or some intermediate form. The computer-readable medium may include: any entity or device capable of carrying computer program code, recording medium, U disk, mobile hard disk, magnetic disk, optical disk, computer memory, read-only memory (ROM), random access memory (RAM), electric carrier signal, telecommunication signal and software distribution medium. It should be noted that the content contained in the computer-readable medium can be appropriately increased or decreased according to the requirements of legislation and patent practice in the jurisdiction. For example, in some jurisdictions, according to legislation and patent practice, the computer-readable medium does not include electric carrier signals and telecommunication signals.
[0093] The above embodiments are only used to illustrate the technical solutions of the present disclosure, rather than to limit them. Although the present disclosure has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present disclosure, and should all be included in the protection scope of the present disclosure.
Claims
1. A limestone slurry tank level adjustment system, characterized in that: The system comprises: A feedforward regulation module, used for monitoring the flow signal of the recycled water to the limestone slurry tank, predicting the change trend of the liquid level of the limestone slurry tank according to the flow signal, and generating a regulation instruction; A liquid level feedback adjustment module, used to obtain a real-time liquid level measurement value of the limestone slurry tank, and control the opening of the electric door of the recycled water to the limestone slurry tank according to the deviation between the real-time liquid level measurement value and the liquid level setting value, so as to perform liquid level adjustment; A process water interlock module, used to control the opening or closing of the electric door of the process water to the limestone slurry tank when the liquid level of the limestone slurry tank exceeds a preset threshold range; The logic control module is used to receive control signals from the feedforward regulation module, the liquid level feedback regulation module and the process water interlock module, and dynamically adjust the liquid level of the limestone slurry tank through logic configuration.
2. The system according to claim 1, characterized in that The feedforward adjustment module comprises: A flow monitoring unit, used for collecting the flow signal of the recycled water to the limestone slurry tank in real time; A trend prediction unit, used to predict the dynamic change direction of the limestone slurry tank level according to the change rate and trend of the recycled water flow; The feedforward instruction generation unit is used to generate corresponding liquid level adjustment preprocessing instructions according to the trend prediction results.
3. The system according to claim 1, characterized in that The liquid level feedback regulation module comprises: A liquid level sensor, used for measuring the liquid level of the limestone slurry tank in real time; A deviation calculation unit, used for calculating the liquid level deviation according to the liquid level setting value and the real-time liquid level measurement value; A PID control unit is used to generate a regulating signal for recycling water to the electric door of the limestone slurry tank according to the liquid level deviation.
4. The system according to claim 1, characterized in that The process water interlock module comprises: A threshold judgment unit, used to judge whether the liquid level of the limestone slurry tank exceeds a preset upper or lower threshold according to the liquid level measurement value; The interlock control unit is used to delay the triggering of the opening and closing action of the process water electric door when the liquid level exceeds the limit.
5. The system according to claim 1, characterized in that The logic control module comprises: A logic operation unit, used to integrate the prediction instructions of the feedforward regulation module, the real-time adjustment signal of the liquid level feedback regulation module, and the emergency control signal of the process water interlock module; The control unit is used to adjust the participation weight of each module signal in liquid level regulation through a dynamic weighting strategy to achieve dynamic control of the liquid level.
6. A method for adjusting the liquid level of a limestone slurry tank, characterized in that: include: By recycling the flow signal of water to the limestone slurry tank, the change trend of the liquid level is predicted and a feedforward adjustment instruction is generated; Real-time monitoring of the liquid level of the limestone slurry tank, calculation of the deviation between the liquid level setting value and the real-time measurement value, and generation of a liquid level feedback adjustment signal; When the liquid level in the limestone slurry tank exceeds the preset threshold range, the process water interlock control is triggered, and the liquid level is restored by adjusting the process water electric door control; The dynamic control of the liquid level is achieved by dynamically weighted adjustment of the participation weights of the feedforward regulation instruction, the liquid level feedback regulation signal and the process water interlock control signal in the liquid level regulation.
7. The method according to claim 6, characterized in that The method of predicting the change trend of the liquid level by the flow signal of the recycled water to the limestone slurry tank and generating the feedforward adjustment instruction includes: Obtain recycled water flow signal in real time; Calculate the change rate of the recycled water flow rate and deduce the dynamic trend of the liquid level based on the change rate; A feedforward control instruction is generated based on the predicted liquid level trend to adjust the opening of the electric door for recycled water.
8. The method according to claim 6, characterized in that When the limestone slurry tank level exceeds a preset threshold value, triggering the process water interlock control includes: When the liquid level measurement value is higher than the upper threshold, the delay triggers the closing of the electric door from the process water to the limestone slurry tank to limit the liquid level from rising further; When the liquid level measurement value is lower than the lower threshold, the delay trigger opens the electric door of the process water to the limestone slurry tank to replenish the liquid level and quickly restore it to the set value; The delayed trigger time is a preset protection delay, which is used to prevent short-term fluctuations from erroneously triggering the interlocking control.
9. An electronic device, characterized in that: include: one or more processors; A storage unit, used to store one or more programs, which, when executed by the one or more processors, enable the one or more processors to implement the limestone slurry tank level adjustment method according to any one of claims 6 to 8.
10. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the computer program is executed by a processor, it can implement the limestone slurry tank level adjustment method according to any one of claims 6 to 8.
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