Full-automatic operation control system for filter pressing, water washing and squeezing of diaphragm filter press

Abstract

The utility model discloses a full-automatic operation control system for filter pressing, water washing and squeezing of a diaphragm filter press, which is characterized in that an inlet of a slurry liquid filter pressing pump is connected with a to-be-pressed filtrate storage tank, an outlet of the slurry liquid filter pressing pump is connected with a liquid inlet of the filter press through a liquid inlet valve V1, and an inlet of an on-machine water washing filter pressing pump is connected with an on-machine washing water storage tank; the outlet is connected with the water inlet of the filter press through a water inlet valve V3; an inlet of the squeezing water delivery pump is connected with the squeezing water tank, an outlet of the squeezing water delivery pump is connected with the filter press, the front end of the pulp filter press pump and the front end of the squeezing water delivery pump are respectively provided with the frequency converter, and the pulp filter press pump, the filter press, the on-machine washing filter press pump, the squeezing water delivery pump, the liquid inlet valve V1 and the water inlet valve V3 are respectively connected into the control cabinet. And the control cabinet is used for controlling the starting, stopping and switching of the slurry filter press pump, the filter press, the on-machine washing filter press pump, the squeezed water delivery pump, the liquid inlet valve V1 and the water inlet valve V3. According to the utility model, full-automatic start-stop switching control of filter pressing, water washing and squeezing of the diaphragm filter press in hydrometallurgy can be realized.

Description

TECHNICAL FIELD

[0001] The utility model relates to the control of diaphragm filter press in hydrometallurgy, especially a system of full-automatic operation control of diaphragm filter press filter pressing, water washing and squeezing. BACKGROUND

[0002] In the hydrometallurgy production, in order to strengthen the washing effect and reduce the moisture content of filter residue, the same diaphragm filter press can realize filter pressing, on-machine water washing and squeezing three functions, that is, the same diaphragm filter press is connected with slurry filter pump, on-machine water washing filter pump and squeezing water pump through different valves, and the slurry filter pump, on-machine water washing filter pump and squeezing water pump need to work in turns, so that the three functions of filter pressing, on-machine water washing and squeezing are sequentially performed in turns.

[0003] At present, in the hydrometallurgy production, the slurry filter pump is generally started manually for filter pressing operation, when the operator sees that the filter liquid output of the filter press is small, the slurry filter pump is manually stopped;

[0004] Then the valve is manually switched again, the on-machine water washing filter pump is started manually, and the filter press is washed on the machine, generally after 10-30 minutes of on-machine washing, the on-machine water washing filter pump is manually stopped;

[0005] Then, the valve is manually switched again, the squeezing water pump is started, the squeezing water enters the filter cake inside the diaphragm of the filter press, generally after 10-30 minutes of squeezing operation, the relief valve is manually opened, and the squeezing water pump is stopped, that is, the whole process of filter pressing, on-machine water washing and squeezing is completed.

[0006] In actual operation, the slurry filter pump is stopped according to the amount of filter liquid output of the filter press observed by the human eye, there is no quantitative index, and it is easy to cause insufficient filter pressing or over-filter pressing, and it is more likely to cause misjudgment. At the same time, the filter pump operates at a fixed frequency, causing unstable liquid level of the filter liquid storage tank and large filter liquid flow, which is not conducive to subsequent production.

[0007] In addition, the valve is manually or semi-automatically switched, and the slurry filter pump, on-machine water washing filter pump and squeezing water pump are started and stopped, the operation is complicated, more operators are needed, the degree of automation is low, the production efficiency is low, the labor cost is high, and it is easy to make mistakes, and even the filter plate can be damaged. UTILITY MODEL CONTENTS

[0008] The utility model solves the technical problem that the filter pressing operation of the hydrometallurgy industry is completely manually operated, and provides a system of full-automatic operation control of diaphragm filter press filter pressing, on-machine water washing and squeezing.

[0009] To solve the above technical problems, the utility model adopts the following technical scheme:

[0010] The system for automatic operation control of diaphragm filter press filtration, water washing and squeezing comprises a to-be-filtered liquid storage tank, a filter press, an inlet valve V1, an outlet valve V2, an inlet water valve V3, an outlet water valve V4, a slurry filtration pump, an on-machine washing water storage tank, an on-machine water washing filtration pump, a squeezing water tank and a squeezing water delivery pump. The inlet of the slurry filtration pump is connected to the to-be-filtered liquid storage tank, and the outlet is connected to the inlet of the filter press through the inlet valve V1. The inlet of the on-machine water washing filtration pump is connected to the on-machine washing water storage tank, and the outlet is connected to the water inlet of the filter press through the inlet water valve V3. The inlet of the squeezing water delivery pump is connected to the squeezing water tank, and the outlet is connected to the filter press. The system further comprises a control cabinet. The front end of the slurry filtration pump and the front end of the squeezing water delivery pump are respectively provided with frequency converters. The slurry filtration pump, the filter press, the on-machine water washing filtration pump, the squeezing water delivery pump and the inlet valve V1, the outlet valve V2, the inlet water valve V3 and the outlet water valve V4 are respectively connected to the control cabinet, and the start-stop and switching of the slurry filtration pump, the filter press, the on-machine water washing filtration pump, the squeezing water delivery pump and the inlet valve V1, the outlet valve V2, the inlet water valve V3 and the outlet water valve V4 are controlled by the control cabinet.

[0011] Further, the to-be-filtered liquid storage tank is provided with an inlet pipe and a liquid level detection device L1. A current detection device is installed on the control circuit of the slurry filtration pump.

[0012] Further, the liquid level detection device L1 is a liquid level meter.

[0013] Further, a current detection device for detecting the running current i of the slurry filtration pump is installed on the control circuit of the slurry filtration pump, and the current detection device is connected to the control cabinet.

[0014] Further, a pressure transmitter P1 for detecting the pressure of the filtered water is installed on the output pipeline of the slurry filtration pump, and the pressure transmitter P1 is connected to the control cabinet.

[0015] Further, the water outlet of the filter press is connected to the on-machine washing water storage tank through the outlet water valve V4, and the outlet water valve V4 is connected to the control cabinet.

[0016] Further, a pressure relief valve V5 and a pressure transmitter P2 for detecting the pressure of the squeezing water are installed on the output pipeline of the squeezing water delivery pump, and the pressure relief valve V5 and the pressure transmitter P2 are respectively connected to the control cabinet.

[0017] Further, the residue outlet of the filter press is connected to a filter residue slurry mixing tank, and the filter residue slurry mixing tank is provided with an inlet pipe for liquid supplement and a liquid level detection device L4 for detecting the liquid level of the filter residue slurry mixing tank.

[0018] Further, the liquid outlet of the filter press is connected to a filter liquid storage tank through the outlet valve V2, and the filter liquid storage tank is connected to a filter liquid delivery pump.

[0019] The system for full-automatic operation control of diaphragm filter press filtering, washing and pressing comprises the following steps when in use:

[0020] S1: setting a target liquid level of a to-be-filtered liquid tank, the target liquid level indicating a normal working liquid level of the diaphragm filter press;

[0021] S2: setting a pump stop current, a pump stop frequency and a pump stop pressure of the slurry filter pump;

[0022] S3: automatically opening an inlet valve V1 and an outlet valve V2, automatically closing an inlet valve V3 and an outlet valve V4, automatically operating the slurry filter pump, starting the filtering of the diaphragm filter press, and making the to-be-filtered slurry enter the diaphragm filter press from the inlet valve V1 through a pipeline, and making the filtered liquid flow out of the diaphragm filter press to the filtered liquid tank from the outlet valve V2, in the process, the slurry filter pump is operated at a variable frequency and automatically tracks the target liquid level of the to-be-filtered liquid tank, or the slurry filter pump is operated at a constant frequency; as the filter residue in the diaphragm filter press accumulates more and more, when the operating frequency F of the slurry filter pump is greater than or equal to the pump stop frequency, the operating current i of the slurry filter pump is less than or equal to the pump stop current, and / or the outlet pressure P1 of the slurry filter pump is greater than or equal to the pump stop pressure, the slurry filter pump is automatically stopped, and the filtering of the diaphragm filter press is stopped;

[0023] S4: after the filtering of the to-be-filtered slurry is completed, the control system automatically closes the inlet valve V1 and the outlet valve V2, opens the inlet valve V3 and the outlet valve V4, and automatically starts the on-machine washing filter pump; the on-machine washing water enters the diaphragm filter press from the inlet valve V3 through a pipeline, and flows out of the diaphragm filter press from the outlet valve V4; after a set on-machine washing operation time is completed, the on-machine washing filter pump is automatically stopped;

[0024] S5: after the on-machine washing is completed, the pressure relief valve V5 is closed, the pressing water delivery pump is automatically started, the pressing water enters the internal diaphragm of the filter plate of the diaphragm filter press to press the filter residue, the water in the filter residue is further squeezed out, after a set pressing operation time is completed, the pressure relief valve V5 is opened, the pressure of the pressing water system is released, and then the pressing water delivery pump is automatically stopped;

[0025] S6: after the pressing is completed, the filter plate of the diaphragm filter press is automatically pulled to discharge the residue; after the filter plate of the diaphragm filter press is discharged and the diaphragm filter press is pressed, S3-S6 are repeated, and the filtering, on-machine washing, pressing and filter plate discharging operations of the diaphragm filter press are continuously performed.

[0026] During the pressing operation, the system automatically detects the pressing water pressure output by the pressing water delivery pump; the pressing water delivery pump is operated at a variable frequency and automatically tracks a pressing water pressure set value; if the pressing water pressure is greater than a pressing water pressure limit value, the pressure relief valve V5 is automatically opened to release the pressure.

[0027] When the filter pressing operation is performed, a filter pressing liquid delay emptying time is set, when the slurry filter pump is automatically stopped, the filter pressing liquid in the pipeline is emptied, and the filter press is automatically stopped.

[0028] When the on-machine washing is performed, a washing water delay emptying time is set, when the washing water in the pipeline is emptied, the filter press is automatically stopped.

[0029] When the squeezing operation is performed, a washing water delay emptying time is set, when the washing water in the pipeline is emptied, the filter press is automatically stopped.

[0030] The filter pressing residue outlet of the filter press is connected with a filter pressing residue slurry mixing tank, before the residue is unloaded, the filter pressing residue slurry mixing tank is automatically supplemented with liquid through a pneumatic or electric liquid inlet valve, when the actual liquid level of the filter pressing residue slurry mixing tank is greater than or equal to the stirring start-stop liquid level, the stirring of the filter pressing residue slurry mixing tank is started, when the actual liquid level of the filter pressing residue slurry mixing tank is greater than or equal to the slurry mixing liquid level, the liquid inlet valve is closed, and the filter press is waited to unload the residue.

[0031] When the filter press is unloaded and the stirring of the filter pressing residue slurry mixing tank is completed, the filter pressing residue slurry pump is started, when the liquid level of the filter pressing residue slurry mixing tank is less than or equal to the stirring start-stop liquid level, the stirring of the filter pressing residue slurry mixing tank is stopped, and when the liquid level of the filter pressing residue slurry mixing tank is less than or equal to the pump stop liquid level, the operation of the filter pressing residue slurry pump is automatically stopped, and the next liquid supplementing is started.

[0032] The pump stop frequency is the maximum working frequency of the filter pump.

[0033] When the slurry filter pump is running at a frequency F greater than or equal to the pump stop frequency, and the running current i of the slurry filter pump is less than or equal to the pump stop current, and / or the outlet pressure P1 of the slurry filter pump is greater than or equal to the pump stop pressure, the system automatically stops the running of the slurry filter pump and the filter pressing of the filter press, the automatic switching of the filter pressing, the on-machine washing and the squeezing operation is automatically completed through the automatic switching of the liquid inlet valve V1, the liquid outlet valve V2, the water inlet valve V3, the water outlet valve V4 and the pressure relief valve V5, the on-machine washing and the squeezing operation are automatically completed through the control of the on-machine washing running time, the squeezing running time, the filter pressing liquid emptying time, the washing water emptying time and the squeezing water pressure set value, and when the squeezing water pressure is greater than the squeezing water pressure limit value, the pressure is automatically relieved to protect the filter plate from being damaged.

[0034] Compared with the prior art, the filter press has the following beneficial effects:

[0035] 1. According to the set pump stop frequency, the pump stop current and the pump stop pressure, the slurry filter pump is quantitatively controlled and the filter pressing of the filter press is automatically stopped, so that the influence of human factors is avoided.

[0036] 2. The filter press realizes the fully-automatic control running of the filter pressing, the on-machine washing and the squeezing operation through the automatic switching of the liquid inlet valve V1, the liquid outlet valve V2, the water inlet valve V3, the water outlet valve V4 and the pressure relief valve V5, and manual intervention is not needed.

[0037] 3、The utility model discloses a stable pressing operation, and has the pressurized water overpressure protection function, and further protects the filter plate;

[0038] 4、The utility model discloses a system intelligent degree is high, improves production efficiency, and greatly reduces manual cost. BRIEF DESCRIPTION OF DRAWINGS

[0039] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or the prior art, the following will briefly introduce the drawings needed to be used in the embodiment or the prior art description, and obviously, the drawings in the following description are some embodiments of the utility model, and for those skilled in the art, other drawings can also be obtained without creative labor on the basis of these drawings.

[0040] Figure 1 It is the full automatic operation control system schematic drawing of diaphragm filter press filter pressing, washing and pressing. DETAILED DESCRIPTION

[0041] The utility model will be further described below in combination with specific preferred embodiments, but it is not therefore to limit the protection scope of the utility model.

[0042] In the description of the utility model, it needs to be explained that the orientation or position relation indicated by the terms "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like is based on the orientation or position relation shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element indicated must have a particular orientation, be constructed and operated in a particular orientation, therefore, it cannot be understood as the limitation of the utility model. In addition, the terms "first", "second", "third" are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0043] In the description of the utility model, it needs to be explained that, unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connection" should be understood broadly, for example, can be fixed connection, can also be detachable connection, or integrally connected, can be mechanical connection, can be directly connected, also can be indirectly connected through the intermediate medium, can be the intercommunication of two elements. For those skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0044] Please refer to Figure 1The utility model discloses a diaphragm filter press, and the system of full-automatic operation control of washing and squeezing includes the liquid to be pressed storage tank, filter press, liquid inlet valve V1, liquid outlet valve V2, water inlet valve V3, water outlet valve V4, pressure relief valve V5, slurry pressure filter pump, on -machine washing water storage tank, on -machine water washing pressure filter pump, squeezing water tank, squeezing water delivery pump and control cabinet.

[0045] The liquid to be pressed storage tank sets target liquid level, and the target liquid level indicates normal working liquid level of the filter press system;The liquid to be pressed storage tank is also provided with liquid inlet pipe for inputting the liquid to be pressed and liquid level detection device L1 for detecting the running liquid level L of the liquid to be pressed storage tank.

[0046] The front end control system of the slurry pressure filter pump is installed with frequency converter, so that the slurry pressure filter pump works in variable frequency state.

[0047] The on -machine washing water storage tank is installed with liquid level detection device L2 for detecting the running liquid level of the on -machine washing water storage tank.

[0048] The squeezing water tank is installed with liquid level detection device L3 for detecting the running liquid level of the squeezing water tank.

[0049] The slag outlet of the filter press is connected with filter residue slurry mixing tank, and the filter residue slurry mixing tank is provided with liquid inlet pipe for supplementing liquid and liquid level detection device L4 (liquid level meter, not shown in the figure) for detecting the liquid level of the filter residue slurry mixing tank.

[0050] The liquid outlet of the filter press is connected with filter liquid storage tank through liquid outlet valve V2, and the filter liquid storage tank is connected with filter liquid delivery pump, so that the filter liquid in the filter liquid storage tank can be output through the filter liquid delivery pump.

[0051] The agitator is arranged in the to-be-filtered liquid storage tank and the filter residue slurry mixing tank respectively, so that the to-be-filtered liquid or the filter residue is stirred.

[0052] The slurry filter pump, the filter press, the on-machine water washing filter press pump, the press water conveying pump, the agitator of the to-be-filtered liquid tank, the agitator of the filter residue slurry mixing tank, the liquid level detection devices L1, L2 and L3, the current detection device, the pressure transmitters P1 and P2 and the liquid inlet valve V1, the liquid outlet valve V2, the water inlet valve V3, the water outlet valve V4 and the pressure relief valve V5 are connected to the control cabinet, and the start and stop and switching of the slurry filter pump, the filter press, the on-machine water washing filter press pump, the press water conveying pump, the agitator of the to-be-filtered liquid tank, the agitator of the filter residue slurry mixing tank and the liquid inlet valve V1, the liquid outlet valve V2, the water inlet valve V3, the water outlet valve V4 and the pressure relief valve V5 are controlled by the control cabinet.

[0053] The utility model discloses a diaphragm filter press filter pressing, washing and pressing full automatic operation control system starts, and sequentially includes:

[0054] The system starts, and the liquid inlet valve V1 and the liquid outlet valve V2 are opened, the water inlet valve V3 and the water outlet valve V4 are closed, the slurry filter pump is automatically operated and starts filter pressing, the to-be-filtered slurry is filtered from the to-be-filtered liquid tank through the pipeline and enters the filter press from the liquid inlet valve V1, and the filter pressing filtrate flows out from the liquid outlet valve V2 to the filtered liquid storage tank.The slurry filter pump is frequency conversion operation under the action of frequency converter and automatically tracks (PID) the target liquid level of the to-be-filtered liquid storage tank, or the slurry filter pump is fixed frequency operation, with the filter residue in the filter press continuously gathering, when the operation frequency F of the slurry filter pump is greater than or equal to the pump stop frequency, and the operation current i of the slurry filter pump is less than or equal to the pump stop current, and simultaneously (or) the slurry filter pump outlet pressure detected by the pressure transmitter P1 is greater than or equal to the pump stop pressure, then the slurry filter pump is automatically stopped, and the filter press stops filter pressing, in the process, the filtered liquid delay emptying time is set, and the filtered liquid in the pipeline is emptied, and the filter pressing operation of the filter press is automatically completed.

[0055] After filter pressing is completed, the control system automatically closes the liquid inlet valve V1 and the liquid outlet valve V2, opens the water inlet valve V3 and the water outlet valve V4, automatically starts the on-machine water washing filter press pump, the on-machine washing water is filtered from the on-machine washing water storage tank through the pipeline and enters the filter press from the water inlet valve V3, and flows back to the on-machine washing water storage tank from the water outlet valve V4, and the filter residue is washed circularly; after the control system operates according to the set on-machine washing operation time, the on-machine water washing filter press pump is automatically stopped, and in the process, the washing water delay emptying time is set, and the washing water in the pipeline is emptied, and the on-machine washing operation is automatically completed.

[0056] After the on-machine washing is completed, the system closes the pressure relief valve V5, and automatically starts the press water delivery pump, the press water enters the inside drum membrane of the filter plate of the filter press from the pipeline, the press water from the press water tank, the press residue of the filter press is pressed, and the water in the press residue of the filter press is further squeezed out; after the control system runs according to the set press operation time, the pressure relief valve V5 is opened, the pressure of the press water system is unloaded, and then the press water delivery pump is automatically stopped, in the process, the set washing water delay emptying time is set, after the pipeline is emptied, the press operation is automatically completed;

[0057] During the press operation, the system automatically detects the press water pressure through the pressure transmitter P2, makes the press water pump run through the frequency converter, and automatically tracks the press water pressure set value, so that the press water pressure is prevented from being too small or too large; if the press water pressure is greater than the press water pressure limit value, the system control automatically opens the pressure relief valve V5 to release pressure, and the filter plate is protected from being damaged.

[0058] After the press is completed, the filter press pulls the plate to discharge the residue, after the filter press discharges the residue and the filter press is tightly pressed, the above steps are repeated, and the filter pressing, on-machine washing, press and filter press residue discharging are continuously performed.

[0059] The above-mentioned target liquid level, pump stop current, pump stop frequency, pump stop pressure, on-machine washing operation time, press operation time, filter liquid emptying time, washing water emptying time, press pressure set value and press pressure limit value are all system settable parameters, which can be flexibly adjusted according to the actual operation.

[0060] In addition, before the filter press pulls the plate to discharge the residue, the corresponding filter residue slurry tank can be automatically supplemented with liquid through a pneumatic or electric liquid inlet valve, when the actual liquid level of the corresponding filter residue slurry tank is greater than or equal to the stirring start-stop liquid level, the stirring of the filter residue slurry tank is started, when the actual liquid level of the corresponding filter residue slurry tank is greater than or equal to the slurry liquid level, the pneumatic or electric liquid inlet valve is automatically closed, and the liquid supplementing is stopped; the control system starts the filter residue slurry pump to output the filter slurry after waiting for the stirring of the filter residue slurry in the filter residue slurry tank to be completed, when the actual liquid level of the corresponding filter residue slurry tank is less than or equal to the stirring start-stop liquid level, the stirring of the filter residue slurry tank is stopped, and when the liquid level of the corresponding filter residue slurry tank is less than or equal to the pump stop liquid level, the operation of the corresponding filter residue slurry pump is automatically stopped, and the next liquid supplementing is started.

[0061] The above-mentioned is only a specific implementation scheme of the present application, but the protection scope of the present application is not limited to this, any person skilled in the art can make many possible changes and modifications to the technical scheme of the present application or modify it into equivalent embodiments with equivalent changes without departing from the technical scheme of the present application. Therefore, any simple modification, equivalent change and modification made to the above-mentioned embodiments according to the technical essence of the present application should fall within the protection scope of the technical scheme of the present application.

Claims

1. A fully automatic operation control system for diaphragm filter press, including filtration, washing, and pressing operations, comprising a filtrate storage tank, a filter press, an inlet valve V1, an outlet valve V2, a water inlet valve V3, a water outlet valve V4, a slurry hydraulic filter pump, an on-machine washing water storage tank, an on-machine washing filter pump, a pressing water tank, and a pressing water delivery pump; the inlet of the slurry hydraulic filter pump is connected to the filtrate storage tank, and the outlet is connected to the filter press inlet via the inlet valve V1; the inlet of the on-machine washing filter pump is connected to the on-machine washing water storage tank, and the outlet is connected to the filter press inlet via the water inlet valve V3; the inlet of the pressing water delivery pump is connected to the pressing water tank, and the outlet is connected to the filter press; characterized in that, The system also includes a control cabinet. Frequency converters are installed at the front end of the slurry hydraulic filter pump and the front end of the press water conveying pump, respectively. The slurry hydraulic filter pump, filter press, machine washing filter pump, press water conveying pump, and inlet valve V1, outlet valve V2, water inlet valve V3, and water outlet valve V4 are respectively connected to the control cabinet. The control cabinet controls the start, stop, and switching of the slurry hydraulic filter pump, filter press, machine washing filter pump, press water conveying pump, and inlet valve V1, outlet valve V2, water inlet valve V3, and water outlet valve V4.

2. The fully automatic operation control system for diaphragm filter press, including filtration, washing, and pressing, as described in claim 1, is characterized in that... The filtrate storage tank to be pressurized is equipped with an inlet pipe and a liquid level detection device L1, and a current detection device is installed on the control circuit of the slurry hydraulic filter pump.

3. The fully automatic operation control system for diaphragm filter press, including filtration, washing, and pressing, as described in claim 2, is characterized in that... The liquid level detection device L1 is a liquid level gauge.

4. The fully automatic operation control system for diaphragm filter press, including filtration, washing, and pressing, as described in claim 1, is characterized in that... A current detection device for detecting the operating current i of the slurry hydraulic filter pump is installed on the control circuit of the slurry hydraulic filter pump, and the current detection device is connected to the control cabinet.

5. The fully automatic operation control system for diaphragm filter press, including filtration, washing, and pressing, as described in claim 1, is characterized in that... A pressure transmitter P1 for detecting the pressure of the filter water is installed on the output pipeline of the slurry hydraulic filter pump, and the pressure transmitter P1 is connected to the control cabinet.

6. The fully automatic operation control system for diaphragm filter press, including filtration, washing, and pressing, as described in claim 1, is characterized in that... The outlet of the filter press is connected to the washing water storage tank on the machine via the outlet valve V4, and the outlet valve V4 is connected to the control cabinet.

7. The fully automatic operation control system for diaphragm filter press, including filtration, washing, and pressing, as described in claim 1, is characterized in that... A pressure relief valve V5 and a pressure transmitter P2 for detecting the pressure of the pressed water are installed on the output pipeline of the press water conveying pump, and the pressure relief valve V5 and the pressure transmitter P2 are respectively connected to the control cabinet.

8. The fully automatic operation control system for diaphragm filter press, including filtration, washing, and pressing, as described in claim 1, is characterized in that... The filter press outlet is connected to the filter press residue conditioning tank. The filter press residue conditioning tank is equipped with an inlet pipe for replenishing liquid and a liquid level detection device L4 for detecting the liquid level in the filter press residue conditioning tank.

9. The fully automatic operation control system for diaphragm filter press, including filtration, washing, and pressing, as described in claim 1, is characterized in that... The outlet of the filter press is connected to the filtrate storage tank via the outlet valve V2, and the filtrate storage tank is connected to the filtrate delivery pump.

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