Filter press energy recycling system and energy recycling process

Abstract

The invention belongs to the technical field of new energy, and discloses a filter press energy recycling system which comprises a filter press body, the filter press body comprises a plurality of filter plates and further comprises a waste heat recycling assembly for primary heat exchange of high-temperature materials, feed ports of the filter plates are communicated with a material conveying pipe penetrating through the interior of the preheating recycling assembly, and the feed ports of the filter plates are communicated with a waste heat recycling assembly. A medium-temperature circulating water outlet pipe is arranged on one side of the filter plate, a low-temperature circulating water inlet pipe is arranged on the other side of the filter plate, and the water inlet end of the low-temperature circulating water inlet pipe is communicated with a circulating pipe and a squeezing pipe. Through the synergistic effect of the three stages, on one hand, the temperature of the filter plate is successfully controlled, stable operation of the filter press is guaranteed, the service life of the filter plate and the whole machine is prolonged, and the equipment cost is reduced; and on the other hand, the advanced heat pump technology is adopted to recycle waste heat generated in each stage, and the originally wasted heat energy is converted into available energy, so that the energy is greatly saved, and the energy utilization efficiency is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of new energy, in particular to a filter press energy recycling system and energy recycling process. BACKGROUND

[0002] At present, the new energy lithium battery industry is developing rapidly, and the filter press plays an important role in the material processing link as a key equipment. However, the filter press in this industry faces many severe technical problems, especially in the material temperature.

[0003] Generally, the material in the new energy lithium battery industry is in a high temperature state during the filter pressing process, and the material temperature is often as high as about 110 degrees. Such high temperature puts high requirements on the core components of the filter press, such as the filter plate and the sealing performance of the whole machine. The common FRPP filter plate on the market is generally limited to a temperature of 90 degrees or less, which cannot meet the high temperature working condition requirements of the industry. If you want to adapt to this high temperature environment, you must use special formula to make the filter plate, which undoubtedly greatly increases the production cost. And under the continuous action of high temperature material, the sealing element of the filter press is worn out, and the replacement cycle is greatly shortened, which further increases the maintenance cost and use cost of the equipment.

[0004] From the perspective of energy utilization, the filtrate is discharged at a high temperature, and the filtrate carrying a large amount of heat energy is directly discharged, causing serious energy waste. Under the background of global energy saving and emission reduction and sustainable development, this energy waste phenomenon needs to be solved. SUMMARY

[0005] In order to overcome the technical defects of the prior art, the present application provides a filter press energy recycling system and energy recycling process.

[0006] The technical solution adopted by the present application is: a filter press energy recycling system, comprising a filter press main body, the filter press main body comprising a plurality of filter plates, further comprising a waste heat recovery assembly for primary heat exchange of high temperature material, a material conveying pipe passing through the inside of the preheating recovery assembly is communicated with the inlet of the plurality of filter plates, a medium temperature circulating water outlet pipe is arranged on one side of the filter plate, a low temperature circulating water inlet pipe is arranged on the other side of the filter plate, a circulating pipe and a pressing pipe are communicated with the water inlet end of the low temperature circulating water inlet pipe, a circulating pump and a second pneumatic ball valve are installed on the circulating pipe, a diaphragm pressing pump and a first pneumatic ball valve are installed on the pressing pipe, the water inlet end of the circulating pipe is communicated with the preheating recovery assembly, the water outlet end of the medium temperature circulating water outlet pipe is communicated with the preheating recovery assembly, and a filtrate discharge backflow pipe is arranged on the preheating recovery assembly and communicated with the liquid outlet of the filter press main body.

[0007] Preferably, the waste heat recovery assembly is internally provided with a condenser, an evaporator and a secondary heat exchanger, the filtrate discharge return pipe is in communication with the secondary heat exchanger, and one end of the circulating pipe is in communication with the evaporator.

[0008] Preferably, the filtrate discharge return pipe is in communication with the pipeline cleaning pipe, the pipeline cleaning pipe is provided with a pipeline cleaning pump, a fourth pneumatic ball valve and a fifth pneumatic ball valve, and the other end of the filtrate discharge return pipe is in communication with the pipeline of the pipeline cleaning pipe between the fourth pneumatic ball valve and the fifth pneumatic ball valve.

[0009] Preferably, the waste heat recovery assembly is provided with a water supply pipe, and the water supply pipe is provided with a water supply pump.

[0010] Preferably, the condenser is provided with an external connecting pipe.

[0011] Preferably, the medium-temperature circulating water outlet pipe is connected with a plurality of medium-temperature circulating branch pipes corresponding to the plurality of filter plates one by one.

[0012] Preferably, the low-temperature circulating water inlet pipe is connected with a plurality of low-temperature circulating branch pipes corresponding to the plurality of filter plates one by one.

[0013] Preferably, the low-temperature circulating water inlet pipe is connected with a squeezing drainage pipe, and the squeezing drainage pipe is provided with a third pneumatic ball valve.

[0014] Preferably, the bottom end of the squeezing drainage pipe is provided with a collection bucket.

[0015] A filter press energy recovery process comprises a filter press energy recovery system as described above, and further comprises the following control steps: Step one, intelligent sensing and dynamic prediction: the AI system uses deep learning algorithm to train the energy recovery historical operation data of different material characteristics, environmental temperature and production load, and forms a dynamic prediction model. When high-temperature materials enter the energy recovery system, the infrared spectrum sensor and the flow meter collect the initial temperature, flow and composition data of the materials in real time, the AI system completes the analysis within 10 ms, and automatically matches the optimal heat exchange strategy: if the material temperature is higher than the threshold value of 3℃, the preheating mode of the waste heat recovery assembly is started 3 seconds in advance, and the compressor variable frequency stepless speed regulation is adjusted; if the solid content of the material fluctuates, the AI system real-time corrects the optimal filling amount of the filter plate chamber. Step two, precise regulation of the AI system with three heat exchanges: primary heat exchange segment: the AI system adjusts the angle of the guide vane steplessly through the electric louver valve according to the real-time temperature curve of the material, thereby dynamically adjusting the heat exchange area of the waste heat recovery component. When a 10% decrease in local heat transfer efficiency is monitored, the AI system automatically triggers the partitioned enhanced heat exchange mode. Secondary heat exchange stage: when the cold water enters the diaphragm plate pressing chamber, the AI system adjusts the circulating pump speed and the cold water flow rate steplessly in real time through the PID self-tuning algorithm, and dynamically corrects the cold water injection timing in combination with the data of the optical fiber temperature sensor embedded in the diaphragm plate chamber. When the average temperature of the filter plate drops to ±1℃ of the set value, the AI system closes the circulating pump 0.5 seconds in advance. Third heat exchange stage: during the heat exchange process between the filtrate and the circulating water, the AI system simulates the flow field distribution in real time through fluid mechanics, and automatically adjusts the opening ratio of the filtrate valve and the circulating valve to maintain the turbulent intensity of the two media in the optimal range of Reynolds number 2000-4000. Step three, device coordination and energy closed loop optimization: the AI system constructs an energy management model of the whole chain of "heat source-heat exchange-storage-utilization", and real-time links the core devices such as compressor, evaporator, condenser, etc. When the heat energy storage capacity of the waste heat recovery component reaches 80% threshold, the AI system starts the condenser and heat pump unit one minute in advance, and based on the fuzzy control algorithm, the heat energy extraction efficiency is improved to COP=4.2 or more through variable capacity compression technology. During the circulating water cooling stage, the AI system dynamically adjusts the evaporator fan speed and refrigerant flow rate according to the real-time water temperature and environmental temperature and humidity. Step four, intelligent energy efficiency management of pressing and cleaning: pressing stage: the AI system monitors the moisture content of the filter cake in real time through the microwave humidity sensor, and steplessly adjusts the automatically generated pressing pressure curve in combination with the filter plate pressure sensor data. When the moisture content drops to the target value, the pressing is immediately terminated. Cleaning operation: the AI system monitors the corrosion rate of the pipeline based on the electrochemical sensor and analyzes the degree of blockage through the ultrasonic flow meter, constructs a balance model of "corrosion-blockage-cleaning energy consumption", and automatically selects the optimal cleaning timing (triggered when the flow section loss rate reaches 5%) and cleaning parameters such as high-pressure water flow and cleaning agent concentration. Step five, self-adaptive learning and continuous optimization: the AI system is equipped with a federated learning framework, continuously learns the optimal control strategy under similar working conditions on the premise of ensuring data security, and automatically updates the control model parameters every month. By comparing the deviation of the actual energy recovery amount from the theoretical maximum value, the AI system automatically corrects the sensor calibration coefficient and algorithm weight.

[0016] The beneficial effects of the present application are: the high-temperature material sequentially passes through three key stages of feeding and cooling, in-plate cooling and liquid discharge cooling, in the feeding and cooling stage, the initial temperature of the material entering the filter press is reduced through heat exchange and other technical means, reducing the subsequent processing burden; in the in-plate cooling stage, the filter plate structure design and internal circulating cooling are used to ensure that the temperature of the filter plate is effectively controlled when processing high-temperature material; in the liquid discharge cooling stage, the discharged high-temperature filtrate is cooled again to further recover waste heat; through the synergistic effect of the three stages, on the one hand, the temperature of the filter plate is successfully controlled, the stable operation of the filter press is ensured, the service life of the filter plate and the whole machine is prolonged, and the equipment cost is reduced; on the other hand, the advanced heat pump technology is used to recover and utilize the waste heat generated in each stage, and the originally wasted heat energy is converted into usable energy, which greatly saves energy and improves energy utilization efficiency; moreover, the application of the energy recovery and utilization system of the filter press is expected to provide a feasible solution for the efficient, energy-saving and stable operation of the filter press in the new energy lithium battery industry, and promote the technological upgrading and sustainable development of the industry. BRIEF DESCRIPTION OF DRAWINGS

[0017] One or more embodiments are illustrated by way of example in the drawings that are for illustrative purposes only, and not for the limitation of embodiments, elements with the same reference numerals in the drawings represent similar elements, unless otherwise specified, the drawings do not constitute a proportional limit.

[0018] Figure 1 It is a schematic diagram of the overall structure of the present application. Figure 2 It is a process flow diagram of the present application.

[0019] Marked in the figure: 1, filter press main body; 2, filter plate; 3, waste heat recovery component; 301, condenser; 302, evaporator; 303, secondary heat exchanger; 4, material conveying pipe; 5, medium-temperature circulating water outlet pipe; 6, low-temperature circulating water inlet pipe; 7, circulating pipe; 8, squeezing pipe; 9, circulating pump; 10, second pneumatic ball valve; 11, diaphragm squeezing pump; 12, first pneumatic ball valve; 13, filtrate discharge return pipe; 14, pipeline cleaning pipe; 15, pipeline cleaning pump; 16, fourth pneumatic ball valve; 17, fifth pneumatic ball valve; 18, water supply pipe; 19, water supply pump; 20, external connecting pipe; 21, medium-temperature circulating branch pipe; 22, low-temperature circulating branch pipe; 23, squeezing drain pipe; 24, third pneumatic ball valve; 25, collection bucket. DETAILED DESCRIPTION

[0020] To make the objectives, technical solutions, and advantages of the present invention more apparent, various embodiments of the present invention will be described in detail below with reference to the accompanying drawings. However, those skilled in the art will appreciate that many technical details are provided in various embodiments of the present invention to facilitate a better understanding of the present application. However, even without these technical details and the various variations and modifications based on the following embodiments, the technical solutions claimed in the claims of this application can be implemented.

[0021] Example 1, as Figure 1 As shown, this embodiment provides a filter press energy recovery and utilization system, including a filter press body 1, the filter press body 1 includes a plurality of filter plates 2, and also includes a waste heat recovery component 3 for the initial heat exchange of high-temperature materials, the feed ports of the plurality of filter plates 2 are connected with a material conveying pipe 4 passing through the interior of the preheating recovery component 3, a medium-temperature circulation water outlet pipe 5 is provided on one side of the filter plate 2, and a low-temperature circulation water inlet pipe 6 is provided on the other side of the filter plate 2, the water inlet end of the low-temperature circulation water inlet pipe 6 is connected with a circulation pipe 7 and a pressing pipe 8, and a pressure pipe 8 is installed on the circulation pipe 7. It is equipped with a circulation pump 9 and a second pneumatic ball valve 10, a diaphragm squeezing pump 11 and a first pneumatic ball valve 12 are installed on the squeezing pipe 8, the water inlet end of the circulation pipe 7 is connected to the preheating recovery component 3, the water outlet end of the medium-temperature circulation outlet pipe 5 is connected to the preheating recovery component 3, and the preheating recovery component 3 is provided with a filtrate discharge reflux pipe 13 connected to the liquid outlet of the filter press body 1, which reduces the thermal stress of the filter plate 2, and the high-temperature material is cooled after the initial heat exchange, which increases the service life of the filter plate 2. The three-time heat exchange design improves the utilization rate of thermal energy.

[0022] The waste heat recovery component 3 is internally provided with a condenser 301, an evaporator 302 and a secondary heat exchanger 303. The filtrate discharge reflux pipe 13 is connected to the secondary heat exchanger 303, and one end of the circulation pipe 7 is connected to the evaporator 302. The compact design reduces the occupied space and improves the secondary recovery rate of the filtrate waste heat.

[0023] The liquid outlets of several of the filter plates 2 are connected to a pipeline cleaning pipe 14, on which a pipeline cleaning pump 15, a fourth pneumatic ball valve 16 and a fifth pneumatic ball valve 17 are installed. The other end of the filtrate discharge reflux pipe 13 is connected to the pipeline between the fourth pneumatic ball valve 16 and the fifth pneumatic ball valve 17 on the pipeline cleaning pipe 14. Automatic cleaning makes the pipeline circulation efficiency higher and reduces the cleaning frequency.

[0024] The waste heat recovery component 3 is connected to a water supply pipe 18, and a water supply pump 19 is installed on the water supply pipe 18. The condenser 301 is provided with an external connecting pipe 20 to support the connection of external heat users, which can be used for material preheating or heating.

[0025] The medium-temperature circulation outlet pipe 5 is connected to a plurality of medium-temperature circulation branches 21 corresponding to and communicating with a plurality of filter plates 2 one by one, and the low-temperature circulation inlet pipe 6 is connected to a plurality of low-temperature circulation branches 22 corresponding to and communicating with a plurality of filter plates 2 one by one to avoid local overheating.

[0026] The low-temperature circulating water inlet pipe 6 is connected to a squeeze water drain pipe 23 , a third pneumatic ball valve 24 is installed on the squeeze water drain pipe 23 , and a collecting bucket 25 is placed at the bottom end of the squeeze water drain pipe 23 , thereby improving the squeeze water recovery rate.

[0027] During operation, the high-temperature material passes through the waste heat recovery component 3 for the first heat exchange, and a small part of the heat energy is recovered. The high-temperature material enters the filter plate 2 and the diaphragm plate filter chamber of the filter press. At this time, the first pneumatic ball valve 12 and the third pneumatic ball valve 24 are opened, the second pneumatic ball valve 10 is closed, the fourth pneumatic ball valve 16 is opened, the fifth pneumatic ball valve 17 is closed, and the diaphragm squeeze pump 11 is opened. When the chambers of all the filter plates 2 are full of water, the diaphragm squeeze pump 11 is closed, the first pneumatic ball valve 12 and the third pneumatic ball valve 24 are closed, the second pneumatic ball valve 10 is closed, the circulation pump 9 is opened, and cold water enters the squeezing chamber of the diaphragm plate to perform secondary heat exchange on the filter plate and bring the heat out to the waste heat recovery component 3; at this time, the filtrate is discharged into the waste heat recovery component 3 and is connected with the circulation pump 9. The circulating water undergoes three full heat exchanges and is finally discharged; the circulating water passes through the evaporator 302 to reduce its temperature to the original temperature, and the water supply pump 19 of the waste heat recovery component 3 extracts the heat through the condenser 301. The waste heat recovery component 3 includes a compressor, a refrigerant, an evaporator 302, a condenser 301, etc.; when the filter press is completed, the pressing stage is carried out, the first pneumatic ball valve 12 is opened, the second pneumatic ball valve 10 and the third pneumatic ball valve 24 are closed, and diaphragm pressing is carried out. After the pressing is completed, the third pneumatic ball valve 24 is opened for drainage; since the filtrate undergoes three heat exchanges, in order to avoid pipeline corrosion and clogging, the pipeline needs to be cleaned in time. At this time, the fourth pneumatic ball valve 16 is closed, and the fifth pneumatic ball valve 17 is opened for pipeline cleaning.

[0028] Example 2, as Figure 2 As shown, further improvements are made on the basis of Example 1: Based on the original energy recovery process, an AI intelligent system and a high-end sensor network are introduced to achieve the ultimate optimization of energy recovery through a closed-loop logic of real-time perception-dynamic analysis-precise control. The system is equipped with an industrial-grade AI chip and an edge computing gateway, integrating 200+ distributed sensors (covering material temperature, flow, pressure, medium composition, and temperature difference of each heat exchange node, equipment energy consumption and other parameters), and building a digital twin model to map the energy flow of the entire process in real time; a filter press energy recovery process includes a filter press energy recovery and utilization system as described above, and also includes the following control steps: Step one, intelligent sensing and dynamic prediction: use AI system to train different material characteristics, environmental temperature, energy recovery history operation data under production load through deep learning algorithm, form dynamic prediction model, when high temperature material enters energy recovery system, infrared spectrum sensor and flow meter real-time collect material initial temperature (±0.1℃ precision), flow and composition data, AI system completes analysis within 10ms, automatically matches optimal heat exchange strategy: if material temperature is higher than threshold value 3℃, preheat mode of waste heat recovery component 3 is started 3 seconds in advance, through variable frequency stepless speed regulation of compressor (50-500Hz), initial heat exchange efficiency is improved; if solid content fluctuation of material, AI system real-time corrects optimal filling amount of filter plate 2 chamber, avoids heat loss caused by invalid space; Step two, AI system precise regulation and control of three times heat exchange: primary heat exchange section: AI system adjusts heat exchange area of waste heat recovery component 3 through stepless regulation of guide vane angle of electric louver valve according to real-time temperature curve of material, when local heat conduction efficiency decreases by 10%, automatic triggering of partitioned intensified heat exchange mode is ensured, average capture rate of primary heat exchange is improved to more than 95%; secondary heat exchange stage: when cold water enters diaphragm plate pressing chamber, AI system real-time stepless speed regulation of circulating pump 9 speed (0-3000rpm) and cold water flow (precision ±0.5L / min) through PID self-tuning algorithm, combined with data of optical fiber temperature sensor embedded in diaphragm plate chamber, dynamic correction of cold water injection timing is realized, when average temperature of filter plate decreases to ±1℃ of set value, AI system closes circulating pump 9 0.5 seconds in advance, avoids excessive injection of cold water to take away redundant cold energy; third heat exchange stage: during heat exchange process of filtrate and circulating water, AI system automatically adjusts opening degree ratio of filtrate valve and circulating valve 9 through real-time simulation of flow field distribution of fluid mechanics, adjusts precision ±1%, maintains turbulent intensity of two kinds of medium in Reynolds number 2000-4000 best interval, compared with traditional control, improves heat exchange efficiency by 20%-30%; Step three, equipment cooperation and energy closed loop optimization: AI system constructs "heat source-heat exchange-storage-utilization" whole chain energy management model, real-time linkage of compressor, evaporator 302, condenser 301 and other core equipment is realized: when heat energy storage amount of waste heat recovery component 3 reaches 80% threshold value, AI system starts condenser 301 and heat pump unit one minute in advance, based on fuzzy control algorithm, through variable capacity compression technology, heat energy extraction efficiency is improved to COP=4.2 or more; during circulating water cooling stage, AI system dynamically adjusts evaporator 302 fan speed and refrigerant flow according to real-time water temperature and environmental temperature and humidity, precision ±0.2kg / h, compared with fixed frequency mode, ensures that circulating water cooling energy consumption is reduced by 35%; Step four, intelligent energy efficiency management of squeezing and cleaning: Squeezing stage: The AI system monitors the moisture content of the filter cake in real time through the microwave humidity sensor, with an accuracy of ±0.5%, combined with filter plate pressure sensor data, stepless adjustment automatically generates a squeezing pressure curve (0-25MPa), when the moisture content drops to the target value, the squeezing is immediately terminated, compared with the traditional timing mode, the energy loss is reduced by 15%-20%; Cleaning operation: The AI system monitors the corrosion rate of the pipeline based on the electrochemical sensor (±0.01mm / year) and analyzes the degree of blockage with the ultrasonic flowmeter, builds a "corrosion-blockage-cleaning energy consumption" balance model, automatically selects the optimal cleaning time (triggered when the flow cross-section loss rate reaches 5%) and cleaning parameters such as high-pressure water flow and cleaning agent concentration, compared with fixed cycle cleaning, reduces water resources and energy consumption by 40%, while ensuring long-term efficient operation of the heat exchange pipeline; Step five, self-adaptive learning and continuous optimization: The AI system is equipped with a federated learning framework, continuously learns the optimal control strategy under similar working conditions while ensuring data security, automatically updates control model parameters every month; By comparing the deviation of actual energy recovery and theoretical maximum value, with an accuracy of ±2%, the AI system automatically corrects the sensor calibration coefficient and algorithm weight, ensuring that the system can still maintain more than 90% of the energy recovery limit efficiency in the case of equipment aging, material property changes, etc.

[0029] Meanwhile, the contents not described in detail in the specification are all prior art known to those skilled in the art.

[0030] Those skilled in the art can understand that the above embodiments are specific examples for implementing the present application, and in actual application, various changes can be made in form and details without departing from the spirit and scope of the present application.

Claims

1. A filter press energy recovery and utilization system, comprising a filter press body (1), wherein the filter press body (1) comprises a plurality of filter plates (2), and is characterized in that: The invention also includes a waste heat recovery component (3) for the initial heat exchange of high-temperature materials. The feed ports of several filter plates (2) are connected to a material conveying pipe (4) passing through the interior of the preheat recovery component (3). A medium-temperature circulation water outlet pipe (5) is provided on one side of the filter plate (2). A low-temperature circulation water inlet pipe (6) is provided on the other side of the filter plate (2). The water inlet end of the low-temperature circulation water inlet pipe (6) is connected to a circulation pipe (7) and a pressing pipe (8). A circulation pump (9) and a second pneumatic ball valve (10) are installed on the circulation pipe (7). A diaphragm pressing pump (11) and a first pneumatic ball valve (12) are installed on the pressing pipe (8). The water inlet end of the circulation pipe (7) is connected to the preheat recovery component (3). The water outlet end of the medium-temperature circulation water outlet pipe (5) is connected to the preheat recovery component (3). The preheat recovery component (3) is provided with a filtrate discharge reflux pipe (13) connected to the liquid outlet of the filter press body (1).

2. The filter press energy recovery and utilization system according to claim 1, characterized in that: The waste heat recovery component (3) is internally provided with a condenser (301), an evaporator (302) and a secondary heat exchanger (303); one end of the filtrate discharge return pipe (13) is connected to the secondary heat exchanger (303); and one end of the circulation pipe (7) is connected to the evaporator (302).

3. The filter press energy recovery and utilization system according to claim 2, characterized in that: The liquid outlets of the plurality of filter plates (2) are connected to a pipeline cleaning pipe (14), on which a pipeline cleaning pump (15), a fourth pneumatic ball valve (16) and a fifth pneumatic ball valve (17) are installed. The other end of the filtrate discharge return pipe (13) is connected to a pipeline between the fourth pneumatic ball valve (16) and the fifth pneumatic ball valve (17) on the pipeline cleaning pipe (14).

4. The filter press energy recovery and utilization system according to claim 1, characterized in that: The waste heat recovery component (3) is connected to a water supply pipe (18), and a water supply pump (19) is installed on the water supply pipe (18).

5. The filter press energy recovery and utilization system according to claim 1, characterized in that: The condenser (301) is provided with an external connecting pipe (20).

6. The filter press energy recovery and utilization system according to claim 1, characterized in that: The medium-temperature circulation water outlet pipe (5) is connected to a plurality of medium-temperature circulation branch pipes (21) that correspond to and communicate with a plurality of filter plates (2) one by one.

7. The filter press energy recovery and utilization system according to claim 1, characterized in that: The low-temperature circulation water inlet pipe (6) is connected to a plurality of low-temperature circulation branch pipes (22) that correspond one to one with and are in communication with a plurality of filter plates (2).

8. The filter press energy recovery and utilization system according to claim 1, characterized in that: The low-temperature circulating water inlet pipe (6) is connected to a squeezing drainage pipe (23), and a third pneumatic ball valve (24) is installed on the squeezing drainage pipe (23).

9. The filter press energy recovery and utilization system according to claim 8, characterized in that: A collecting bucket (25) is placed at the bottom end of the squeezing drainage pipe (23).

10. A filter press energy recovery process, characterized in that: The filter press energy recovery and utilization system according to any one of claims 1 to 9 further comprises the following control steps: Step 1. Intelligent perception and dynamic prediction: The AI ​​system is used to train the historical operation data of energy recovery under different material characteristics, ambient temperature, and production load through deep learning algorithms to form a dynamic prediction model. When high-temperature materials enter the energy recovery system, the infrared spectrum sensor and flow meter collect the initial temperature, flow rate and composition data of the material in real time. The AI ​​system completes the analysis within 10ms and automatically matches the optimal heat exchange strategy: if the material temperature is higher than the threshold of 3°C, the preheating mode of the waste heat recovery component (3) is started 3 seconds in advance, and the compressor is adjusted by variable frequency stepless speed; if the solid content of the material fluctuates, the AI ​​system corrects the optimal filling amount of the filter plate (2) chamber in real time; Step 2: Precise control of the AI ​​system for three-stage heat exchange: First heat exchange section: The AI ​​system adjusts the guide plate angle steplessly through the electric shutter valve according to the real-time temperature curve of the material, thereby dynamically adjusting the heat exchange area of ​​the waste heat recovery component (3). When the local heat conduction efficiency is detected to drop by 10%, the partitioned enhanced heat exchange mode is automatically triggered; Second heat exchange stage: When the cold water enters the diaphragm plate pressing chamber, the AI ​​system uses the PID self-tuning algorithm to adjust the speed of the circulation pump (9) and the cold water flow in real time steplessly. Combined with the data of the optical fiber temperature sensor embedded in the diaphragm plate chamber, the timing of cold water injection is dynamically corrected. When the average temperature of the filter plate drops to ±1°C of the set value, the AI ​​system shuts down the circulation pump (9) 0.5 seconds in advance; Third heat exchange stage: During the heat exchange process between the filtrate and the circulating water, the AI ​​system simulates the flow field distribution in real time through fluid mechanics, and automatically adjusts the opening ratio of the filtrate valve and the circulation valve (9) to maintain the turbulence intensity of the two media in the optimal range of Reynolds number 2000-4000; Step 3: Equipment coordination and energy closed-loop optimization: The AI ​​system builds a full-chain energy management model of "heat source - heat exchange - storage - utilization", and real-time links the core equipment such as the compressor, evaporator (302), and condenser (301): When the heat energy storage capacity of the waste heat recovery component (3) reaches the 80% threshold, the AI ​​system starts the condenser (301) and the heat pump unit one minute in advance, and based on the fuzzy control algorithm, the heat energy extraction efficiency is increased to COP=4.2 or above through variable capacity compression technology; in the circulating water cooling stage, the AI ​​system dynamically adjusts the evaporator (302) fan speed and refrigerant flow according to the real-time water temperature and ambient temperature and humidity; Step 4: Intelligent Energy Efficiency Management for Pressing and Cleaning: During the pressing phase, the AI ​​system monitors the moisture content of the filter cake in real time using a microwave humidity sensor. Combined with data from the filter plate pressure sensor, it automatically generates a pressing pressure curve through stepless adjustment, terminating pressing immediately when the moisture content drops to the target value. For cleaning, the AI ​​system uses electrochemical sensors to monitor pipeline corrosion rates and ultrasonic flowmeters to analyze the degree of blockage. This system then constructs a "corrosion-blockage-cleaning energy consumption" balance model, automatically selecting the optimal cleaning timing (triggered when the flow cross-section loss rate reaches 5%) and cleaning parameters, such as high-pressure water flow rate and cleaning agent concentration. Step 5. Adaptive learning and continuous optimization: The AI ​​system is equipped with a federated learning framework. While ensuring data security, it continuously learns the optimal control strategy under similar operating conditions and automatically updates the control model parameters every month. By comparing the deviation between the actual energy recovery amount and the theoretical maximum value, the AI ​​system autonomously corrects the sensor calibration coefficient and algorithm weight.

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