Quantitative sludge feeding adjusting device for filter press

Abstract

The application relates to the technical field of filter presses, in particular to a quantitative sludge feeding amount adjusting device of a filter press, which comprises a sludge conveying assembly, a flow detection assembly and a dynamic adjusting assembly. The flow detection assembly detects the instantaneous flow of sludge through a flow sensing module, a signal processing module analyzes data and generates instructions, and the dynamic adjusting assembly adjusts the opening degree of an adjusting valve body according to the instructions to control the sludge flow rate. The device also comprises temperature compensation, pressure balance, self-cleaning and other functional units, which improve the detection precision and system stability. The application can accurately control the sludge feeding amount of the filter pressing cavity, solves the problem of inaccurate adjustment in the prior art, significantly improves the filter pressing efficiency, shortens the filter pressing time and enhances the system reliability.

Description

Technical Field

[0001] This utility model relates to the technical field, and in particular to a device for adjusting the quantitative mud feed rate of a filter press. Background Technology

[0002] In the field of wastewater treatment, the biological treatment stage of wastewater treatment plants generates a large amount of excess sludge. The original sludge treatment process involved thickening and dewatering the excess sludge using centrifuges to create sludge with a water content of 75%–80%, which was then transported to municipal landfills for disposal. Under the increasingly stringent national environmental protection policies, the water content of municipal landfill sludge is now explicitly required to be less than 60%, with lower water content resulting in lower subsequent sludge disposal costs. Sludge filter presses are the core equipment for sludge dewatering, converting high-moisture sludge into low-moisture sludge cakes through mechanical extrusion and filtration, facilitating subsequent transportation and disposal. The sludge feed rate of the filter press is a critical parameter in its design and operation, directly affecting the equipment's processing capacity, dewatering effect, operating costs, and system stability throughout the entire process.

[0003] With increasingly stringent environmental protection requirements, the moisture content of municipal landfill sludge must now be controlled below 60%, which places higher demands on the dewatering performance of filter presses. The sludge feed rate, as a core parameter affecting the filter press's processing capacity, dewatering effect, and operating costs, directly determines the filtration efficiency and the stability of the entire system. However, the adjustment of the sludge feed rate in some existing filter presses is often not precise or convenient enough, frequently leading to prolonged filtration time or fluctuating dewatering effects, thus impacting overall operational efficiency. Utility Model Content

[0004] The purpose of this invention is to overcome the shortcomings of existing filter presses, such as the lack of precision and convenience in adjusting the amount of sludge fed into the filter press, which leads to prolonged filtration time or unstable dewatering effect, and to provide a quantitative sludge feeding adjustment device for filter presses.

[0005] The objective of this utility model is achieved through the following technical solution: a quantitative sludge feed rate adjustment device for a filter press, comprising a sludge conveying component, a flow detection component, and a dynamic adjustment component; the flow detection component includes a flow sensing module and a signal processing module, and the dynamic adjustment component includes an adjustment valve body and a drive execution module; the sludge conveying component is used to convey sludge to the inlet of the filter press chamber, the flow sensing module is disposed at the outlet end of the sludge conveying component and is used to detect the instantaneous flow rate of sludge flowing through it, the signal processing module is electrically connected to the flow sensing module and is used to receive and process flow data, the adjustment valve body is disposed between the outlet end of the sludge conveying component and the inlet of the filter press chamber, and the drive execution module is mechanically connected to the adjustment valve body and is used to adjust the opening degree of the adjustment valve body according to the flow data output by the signal processing module.

[0006] The sludge conveying assembly includes a conveying pipe, a screw propeller, and a drive motor. One end of the conveying pipe is connected to the sludge source, and the other end is opposite to the inlet of the filter press chamber. The screw propeller is disposed inside the conveying pipe, and the drive motor is driven by the screw propeller to rotate and propel the sludge along the conveying pipe. The flow sensing module includes a flow probe and a signal converter. The flow probe is fixedly installed on the outer wall of the conveying pipe and has a magnetic field sensing element inside to detect changes in the magnetic field caused by the sludge flow. The signal converter is electrically connected to the flow probe to convert the magnetic field change signal into flow data. The signal processing module includes a data processor and a display unit. The data processor is electrically connected to the signal converter to perform real-time analysis of the flow data, and the display unit is electrically connected to the data processor to display the current flow rate and historical flow curves.

[0007] The filter press quantitative sludge feed rate regulating device provided in this technical solution works by conveying sludge from the sludge source to the filter chamber inlet via a sludge conveying assembly. During this conveying process, the sludge passes through the detection area of ​​the flow sensing module. The flow probe uses the principle of magnetic field induction to acquire the instantaneous flow rate information of the sludge and transmits this information to a signal converter. The signal converter converts the magnetic field change signal into flow data and transmits it to the data processor. The data processor analyzes the received flow data in real time to determine whether the current flow rate meets the preset flow range. If the flow rate exceeds or falls below the preset range, the data processor generates a corresponding control command and sends it to the drive execution module. The drive execution module adjusts the opening of the regulating valve according to the command, thereby changing the sludge flow rate and bringing the actual flow rate closer to the preset value. Through this process, precise control of the sludge feed rate to the filter chamber is achieved.

[0008] In addition, the quantitative sludge feed rate regulating device for the filter press of this utility model may also have the following additional technical features: In some embodiments, the regulating valve body includes a valve shell, a valve core, and a sealing ring. The two ends of the valve shell are respectively connected to the conveying pipeline and the inlet flange of the filter press chamber. The valve core is disposed inside the valve shell, and its surface is provided with multiple flow holes of different sizes. The sealing ring is nested around the outer periphery of the valve core to prevent sludge leakage. The drive execution module includes a stepper motor and a transmission mechanism. The stepper motor is fixedly mounted on one side of the valve shell by a bracket. The stepper motor drives the valve core to rotate and adjust the opening and closing degree of the valve core. The stepper motor rotates a certain angle according to the instructions of the data processor, thereby causing the valve core to move along the inner wall of the valve shell, adjusting the overlap area between the flow holes and the sludge flow direction, and thus changing the sludge flow rate.

[0009] In some embodiments, the flow sensing module further includes a temperature compensation unit disposed inside the flow probe. This temperature compensation unit detects temperature changes in the sludge and corrects the measurement results of the magnetic field sensing element. Since the viscosity of the sludge changes with temperature, the temperature compensation unit effectively improves the accuracy of flow detection and avoids measurement errors caused by temperature fluctuations.

[0010] In some embodiments, the sludge conveying assembly further includes a pressure balancing device comprising a buffer tank and a pressure sensor. The buffer tank is located in the middle of the conveying pipeline and has an internal elastic diaphragm for balancing pressure fluctuations during sludge conveying. The pressure sensor is installed at the top of the buffer tank to detect pressure changes within the tank. The pressure sensor transmits the detected pressure data to a data processor, which combines this data with flow data to comprehensively analyze the sludge conveying status and ensure system operational stability.

[0011] In some embodiments, the drive execution module further includes limit switches disposed at both ends of the valve housing to limit the movement range of the valve core. When the valve core moves to its limit position, the limit switches are triggered and send a signal to the data processor. The data processor stops the stepper motor based on the signal to prevent excessive movement of the valve core from damaging the equipment.

[0012] In some embodiments, the display unit further includes an alarm module electrically connected to the data processor, used to issue an audible and visual alarm signal when the flow data exceeds a preset range. The alarm module includes an LED indicator and a buzzer. The LED indicator is mounted on the panel of the display unit, and the buzzer is installed inside the display unit. When the flow is abnormal, the data processor controls the LED indicator to flash and activates the buzzer to sound, alerting the operator to handle the situation promptly.

[0013] In some embodiments, the sludge conveying assembly further includes a cleaning device comprising a scraper and a cleaning nozzle. The scraper is disposed on the inner wall of the conveying pipe, with one end contacting the outer edge of the auger, for scraping off sludge adhering to the inner wall of the pipe. The cleaning nozzle is disposed at the top of the conveying pipe, with its nozzle facing the scraper, for spraying cleaning fluid onto the scraper. The cleaning nozzle is connected to an external water source via a pipe, and an appropriate amount of detergent can be added to the water source to improve the cleaning effect.

[0014] In some embodiments, the signal processing module further includes a storage unit electrically connected to the data processor for storing traffic data and related operating parameters. The storage unit uses a non-volatile memory chip, which can retain data even when power is off, facilitating subsequent analysis and troubleshooting.

[0015] In some embodiments, the regulating valve body further includes a manual adjustment mechanism, which includes a handwheel and a screw. The handwheel is disposed outside the valve housing, and one end of the screw is fixedly connected to the handwheel, while the other end is threadedly connected to the valve core. This mechanism is used to manually adjust the position of the valve core in case of power failure or emergency. The handwheel rotates, causing the screw to rotate. The threaded structure of the screw causes the valve core to move along the inner wall of the valve housing, thereby changing the opening degree of the flow orifice.

[0016] In some embodiments, the flow sensing module further includes a self-cleaning device comprising an ultrasonic generator and a vibrating plate. The ultrasonic generator is fixedly mounted on the housing of the flow probe, and the vibrating plate is connected to the ultrasonic generator to generate high-frequency vibrations. The ultrasonic generator cleans the sensing element of the flow probe through the vibrating plate, preventing sludge particles from adhering to the surface of the sensing element and affecting detection accuracy.

[0017] This invention has the following advantages: The quantitative sludge feed rate regulating device for a filter press provided by this invention achieves precise control of the sludge feed rate into the filter press chamber through the coordinated action of a sludge conveying component, a flow detection component, and a dynamic adjustment component. The sludge conveying component is responsible for stably conveying sludge to the inlet of the filter press chamber. The flow detection component monitors the sludge flow rate in real time and feeds the data back to the signal processing module. The dynamic adjustment component adjusts the opening of the regulating valve according to the instructions of the signal processing module, thereby changing the sludge flow rate and ensuring that the actual flow rate is consistent with the preset value. Through the above technical means, the problems of lack of precision and convenience in the sludge feed rate regulation in the prior art are solved, significantly shortening the filtration time and improving the filtration efficiency, while enhancing the stability and reliability of the system. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a partial enlarged view of the dynamic adjustment component of this utility model;

[0020] Figure 3 This is a schematic diagram of the flow detection component of this utility model;

[0021] In the diagram, 1. Sludge conveying assembly; 2. Flow detection assembly; 3. Dynamic adjustment assembly; 4. Conveying pipeline; 5. Screw propeller; 6. Drive motor; 7. Flow sensing module; 8. Signal processing module; 9. Regulating valve body; 10. Drive execution module; 11. Flow probe; 12. Signal converter; 13. Data processor; 14. Display unit; 15. Valve core; 16. Stepper motor; 17. Temperature compensation unit. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can typically be arranged and designed in various different configurations.

[0023] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0024] It should be noted that, where there is no conflict, the embodiments and features in the embodiments of this utility model can be combined with each other.

[0025] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0026] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this utility model is in use, or the orientation or positional relationship commonly understood by those skilled in the art. They are only used for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first," "second," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0027] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0028] like Figures 1-3As shown, a quantitative sludge feed rate adjustment device for a filter press includes a sludge conveying component 1, a flow detection component 2, and a dynamic adjustment component 3. These components achieve precise control of the sludge feed rate into the filter press chamber through reasonable layout and close cooperation.

[0029] The sludge conveying assembly 1 consists of a conveying pipe 4, a screw propeller 5, and a drive motor 6. One end of the conveying pipe 4 is connected to the sludge source, and the other end is connected to the inlet of the filter press chamber. The screw propeller 5 is located inside the conveying pipe 4 and arranged axially. The drive motor 6 is connected to the screw propeller 5 through a transmission mechanism to drive the screw propeller 5 to rotate. A gap is left between the outer edge of the screw propeller 5 and the inner wall of the conveying pipe 4 to ensure that the sludge can move along the pipe under thrust. To prevent sludge from adhering to the inner wall of the pipe during conveying, a cleaning nozzle is also installed at the top of the conveying pipe 4. The cleaning nozzle is connected to an external water source through a pipe, and its nozzle faces a scraper. The scraper is fixedly installed on the inner wall of the conveying pipe 4 and contacts the outer edge of the screw propeller 5, which can scrape off the sludge residue adhering to the inner wall of the pipe. In addition, a pressure balancing device is installed in the middle of the conveying pipe 4. The pressure balancing device includes a buffer tank and a pressure sensor. The buffer tank has an elastic diaphragm inside to balance the pressure fluctuations during sludge conveying. The pressure sensor is installed at the top of the buffer tank to monitor the pressure changes inside the buffer tank in real time.

[0030] The flow detection component 2 includes a flow sensing module 7 and a signal processing module 8. The flow sensing module 7 consists of a flow probe 11, a signal converter 12, and a temperature compensation unit 19. The flow probe 11 is fixedly installed on the outer wall of the conveying pipe 4 and has a magnetic field sensing element inside to detect changes in the magnetic field caused by sludge flow. The signal converter 12 is electrically connected to the flow probe 11 and converts the magnetic field change signal into flow data. To improve the accuracy of flow detection, a temperature compensation unit 19 is also installed inside the flow probe 11 to detect changes in sludge temperature and correct the measurement results of the magnetic field sensing element. The signal processing module 8 includes a data processor 13, a display unit 14, and a storage unit. The data processor 13 is electrically connected to the signal converter 12 and is used to receive and analyze flow data. The display unit 14 is electrically connected to the data processor 13 and is used to display the current flow rate and historical flow curves. The storage unit uses a non-volatile memory chip to save flow data and related operating parameters, ensuring that the data is not lost even when power is off.

[0031] The dynamic adjustment component 3 includes an adjustment valve body 9 and a drive execution module 10. The adjustment valve body 9 is located between the outlet end of the conveying pipeline 4 and the inlet of the filter press chamber. It contains a valve core 15, a sealing ring, and multiple flow holes of different sizes. The valve core 15 is threaded into the inner wall of the adjustment valve body 9, and the sealing ring is nested around the outer circumference of the valve core 15 to prevent sludge leakage. The drive execution module 10 consists of a stepper motor 16, a gear set 17, a connecting rod 18, and a limit switch. The stepper motor 16 is fixedly mounted on one side of the adjustment valve body 9 via a bracket. The gear set 17 meshes with the output shaft of the stepper motor 16. One end of the connecting rod 18 is connected to the gear set 17, and the other end is fixedly connected to the valve core 15, converting the rotational motion of the stepper motor 16 into the linear movement of the valve core 15. Limit switches are located at both ends of the regulating valve body 9 to limit the movement range of the valve core 15. When the valve core 15 moves to its limit position, the limit switches are triggered and send a signal to the data processor 13. The data processor 13 stops the stepper motor 16 according to the signal to prevent excessive movement of the valve core 15 from damaging the equipment. In addition, the regulating valve body 9 also includes a manual adjustment mechanism, which consists of a handwheel and a screw. The handwheel is located outside the regulating valve body 9, and one end of the screw is fixedly connected to the handwheel, while the other end is threadedly connected to the valve core 15. This mechanism is used to manually adjust the position of the valve core 15 in case of power failure or emergency.

[0032] In actual operation, after the sludge enters the conveying pipe 4 from the sludge source, the screw propeller 5 rotates under the drive of the drive motor 6, pushing the sludge along the conveying pipe 4 to the inlet of the filter press chamber. When the sludge passes through the area where the flow probe 11 is located, the flow probe 11 uses the principle of magnetic field induction to obtain the instantaneous flow information of the sludge and transmits this information to the signal converter 12. The signal converter 12 converts the magnetic field change signal into flow data and transmits it to the data processor 13. The data processor 13 analyzes the received flow data in real time and combines it with the pressure data detected by the pressure sensor to comprehensively judge the sludge conveying status. If the flow exceeds or falls below the preset range, the data processor 13 generates a corresponding control command and sends it to the stepper motor 16. The stepper motor 16 rotates a certain angle according to the command, thereby adjusting the overlap area between the flow orifice and the sludge flow direction, changing the sludge flow rate, and making the actual flow rate tend to the preset value. When the flow data exceeds the preset range, the alarm module on the display unit 14 is activated, the LED indicator flashes and the buzzer sounds, reminding the operator to deal with it in time.

[0033] To further enhance the reliability of the device, the flow probe 11 is also equipped with a self-cleaning device, which consists of an ultrasonic generator and a vibrating plate. The ultrasonic generator is fixedly mounted on the housing of the flow probe 11, and the vibrating plate is connected to the ultrasonic generator to generate high-frequency vibrations to clean the sensing element of the flow probe 11, preventing sludge particles from adhering to the surface of the sensing element and affecting the detection accuracy. Simultaneously, the cleaning nozzle is connected to an external water source via a pipe. An appropriate amount of cleaning agent can be added to the water source to improve the cleaning effect and ensure the device operates stably for extended periods.

[0034] The connections and coordination among the aforementioned components have been meticulously designed, achieving not only precise control of the sludge feed rate into the filter press chamber but also significantly improving the system's stability and reliability. Through the synergistic effect of the sludge conveying component 1, the flow detection component 2, and the dynamic adjustment component 3, the lack of precision and convenience in sludge feed rate adjustment in existing technologies has been resolved, while simultaneously shortening the filter press time and improving filter press efficiency.

[0035] To enable those skilled in the art to fully understand and implement this utility model, the specific implementation principle of this utility model is further explained below in conjunction with a specific application scenario.

[0036] In actual operation, sludge first enters the conveying pipe 4 from the sludge source. After the drive motor 6 starts, it drives the screw propeller 5 to rotate through the transmission mechanism. A gap is left between the outer edge of the screw propeller 5 and the inner wall of the conveying pipe 4 to ensure that the sludge can move along the pipe under the thrust. At this time, the scraper in the sludge conveying assembly 1 contacts the outer edge of the screw propeller 5, scraping off the sludge residue adhering to the inner wall of the conveying pipe 4, preventing sludge accumulation from affecting the conveying efficiency. The cleaning nozzle is connected to an external water source through a pipe, and its nozzle faces the scraper, which can periodically spray cleaning fluid to further clean the inner wall of the pipe, ensuring the stable operation of the device for a long time.

[0037] When sludge flows through the area where the flow probe 11 is located, the magnetic field sensing element inside the flow probe 11 detects the changes in the magnetic field caused by the sludge flow. The signal converter 12 converts the magnetic field change signal into flow data and transmits it to the data processor 13. The data processor 13 analyzes the received flow data in real time and, together with the pressure data detected by the pressure sensor, comprehensively judges the sludge conveying status. If the flow rate exceeds or falls below the preset range, the data processor 13 generates a corresponding control command and sends it to the stepper motor 16. The stepper motor 16 rotates a certain angle according to the command, driving the valve core 15 to move along the inner wall of the regulating valve body 9, thereby adjusting the overlap area between the flow orifice and the sludge flow direction, changing the sludge flow velocity, and making the actual flow rate tend to the preset value. During this process, the temperature compensation unit 19 detects the temperature change of the sludge and corrects the measurement results of the magnetic field sensing element to improve the accuracy of flow detection.

[0038] When the valve core 15 moves to its limit position, the limit switch is triggered and sends a signal to the data processor 13. The data processor 13 stops the stepper motor 16 according to the signal to prevent the valve core 15 from moving excessively and causing damage to the equipment. In addition, if the system experiences a power outage or other emergency, the manual adjustment mechanism can manually adjust the position of the valve core 15 through the handwheel and screw to ensure that the device can still operate normally under special circumstances.

[0039] During long-term operation, the flow probe 11 may experience reduced detection accuracy due to the adhesion of sludge particles. To address this, an ultrasonic generator is fixedly mounted on the housing of the flow probe 11, with a vibrating plate connected to the generator to produce high-frequency vibrations that clean the sensing element of the flow probe 11. Simultaneously, a cleaning nozzle is connected to an external water source via a pipe, and an appropriate amount of cleaning agent is added to the water to further enhance the cleaning effect and ensure that the flow probe 11 maintains high-precision detection performance at all times.

[0040] The connections and coordination among the aforementioned components are meticulously designed. Through the synergistic action of the sludge conveying assembly 1, the flow detection assembly 2, and the dynamic adjustment assembly 3, precise control of the sludge feed rate into the filter press chamber is achieved. The sludge conveying assembly 1 is responsible for stably conveying the sludge to the inlet of the filter press chamber. The flow detection assembly 2 monitors the sludge flow rate in real time and feeds the data back to the signal processing module 8. The dynamic adjustment assembly 3 adjusts the opening of the regulating valve 9 according to the instructions of the signal processing module 8, thereby changing the sludge flow rate and ensuring that the actual flow rate is consistent with the preset value. These technical means solve the problems of lack of precision and convenience in sludge feed rate adjustment in existing technologies, significantly shorten the filter press time and improve the filter press efficiency, while also enhancing the stability and reliability of the system.

[0041] All content not described in detail in this specification is prior art known to those skilled in the art, and the model parameters of each electrical appliance are not specifically limited; conventional equipment can be used. Electrical control components not mentioned in this technical solution are not shown in the figures because they are prior art, and will not be described further here.

[0042] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A device for adjusting the quantitative sludge feed rate of a filter press, characterized in that, It includes a sludge conveying assembly (1), a flow detection assembly (2), and a dynamic adjustment assembly (3); The flow detection component (2) includes a flow sensing module (7) and a signal processing module (8), and the dynamic adjustment component (3) includes a regulating valve body (9) and a drive execution module (10); The sludge conveying assembly (1) is used to convey sludge to the inlet of the filter press chamber. The flow sensing module (7) is located at the outlet end of the sludge conveying assembly (1) and is used to detect the instantaneous flow rate of sludge flowing through it. The signal processing module (8) is electrically connected to the flow sensing module (7) and is used to receive and process flow data. The regulating valve body (9) is located between the outlet end of the sludge conveying assembly (1) and the inlet of the filter press chamber. The drive execution module (10) is mechanically connected to the regulating valve body (9) and is used to adjust the opening degree of the regulating valve body (9) according to the flow data output by the signal processing module (8).

2. The quantitative sludge feed rate regulating device for a filter press according to claim 1, characterized in that: The sludge conveying assembly (1) includes a conveying pipe (4), a screw propeller (5), and a drive motor (6). One end of the conveying pipe (4) is connected to the sludge source, and the other end is opposite to the inlet of the filter press chamber. The screw propeller (5) is disposed inside the conveying pipe (4). The drive motor (6) is connected to the screw propeller (5) for driving the screw propeller (5) to rotate and push the sludge along the conveying pipe (4).

3. The quantitative sludge feed rate regulating device for a filter press according to claim 1, characterized in that: The flow sensing module (7) includes a flow probe (11) and a signal converter (12). The flow probe (11) is fixedly installed on the outer wall of the conveying pipe (4) and has a magnetic field sensing element inside it for detecting magnetic field changes caused by sludge flow. The signal converter (12) is electrically connected to the flow probe (11) and is used to convert the magnetic field change signal into flow data.

4. The quantitative sludge feed rate regulating device for a filter press according to claim 1, characterized in that: The signal processing module (8) includes a data processor (13) and a display unit (14). The data processor (13) is electrically connected to the signal converter (12) and is used to perform real-time analysis of traffic data. The display unit (14) is electrically connected to the data processor (13) and is used to display the current traffic flow and historical traffic curves.

5. The quantitative sludge feed rate regulating device for a filter press according to claim 1, characterized in that: The regulating valve body (9) includes a valve shell, a valve core (15) and a sealing ring. The two ends of the valve shell are connected to the conveying pipe (4) and the filter press inlet flange, respectively. The valve core (15) is disposed inside the valve shell, and the sealing ring is nested on the outer periphery of the valve core (15) to prevent sludge leakage.

6. The quantitative sludge feed rate regulating device for a filter press according to claim 5, characterized in that: The drive execution module (10) includes a stepper motor (16) and a transmission mechanism. The stepper motor (16) is fixedly installed on one side of the valve housing by a bracket. The stepper motor (16) drives the valve core (15) to rotate and adjust the opening degree of the valve core (15).

7. The quantitative sludge feed rate regulating device for a filter press according to claim 3, characterized in that: The flow sensing module (7) also includes a temperature compensation unit (17), which is located inside the flow probe (11) and is used to detect temperature changes in the sludge and correct the measurement results of the magnetic field sensing element.

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