CN216092379U - Mechanical automation filter cake drops diaphragm type pressure filter - Google Patents

Abstract

The utility model discloses a mechanical automatic diaphragm type filter press with filter cakes falling off, wherein a plurality of groups of filter plates are stacked between a pressure plate and a thrust plate, and limiting sliding assemblies are arranged on two sides of the stacked groups of filter plates; filter grooves are formed in two sides of each filter plate, filter cloth is arranged in each filter plate in the filter grooves, filter cloth in adjacent filter plates forms a filter cavity, and the filter cavities are communicated with the flow guide holes; a flow guide cavity formed between the filter plate and the filter cloth is communicated with the liquid outlet hole; the filter plate is fixedly provided with a plurality of fixed bulges and a plurality of lifting bulges in the flow guide cavity, and the fixed bulges are fixedly connected with a nozzle; the plurality of lifting bulges are fixedly connected to the same extrusion plate, and the middle part of the filter plate is provided with a second pressurizing pipeline communicated with the high-pressure channel. The utility model improves the filter pressing effect, the water content of the filter cake after filter pressing is low, the mechanical automatic falling of the filter cake of the diaphragm type filter press is realized, the labor intensity of workers is reduced, the working efficiency is improved, and the potential safety hazard is eliminated.

Description

Mechanical automation filter cake drops diaphragm type pressure filter

Technical Field

The utility model relates to the field of filter presses, in particular to a mechanical automatic diaphragm type filter press with filter cakes falling off.

Background

The membrane filter press is a device for realizing the separation of solid and liquid of suspension in industrial production, is widely applied to the fields of coal washing, petroleum, chemical industry, medicine, food and the like, and is also applied to various fields needing solid-liquid separation, such as textile, printing and dyeing, pharmacy, papermaking, leather, seasoning and other industrial wastewater, municipal sewage treatment and the like. The operating principle of the membrane filter press is that a certain number of filter plates and filter cloth arranged between the plates are tightly arranged into a row under the action of strong mechanical force to form a filter pressing group, filter chambers are formed between filter plate surfaces, filter slurry enters each filter chamber under the pushing of a feed pump, the filter slurry is subjected to solid-liquid separation by virtue of the pressure generated by a feed delivery pump, and due to the action of the filter cloth, the solid is left in the filter chambers to form filter cakes, and the filter liquor flows out through holes in the four corners of the filter plates. After one working process is finished, a large amount of residual substances can be accumulated on the filter plate and the filter cloth, and the working surface of the membrane filter press must ensure that no sludge is attached, so that the next cycle of work is convenient to carry out. The mode of clearance filter residue at present is manual cleaning, and cleaning efficiency is low and workman intensity of labour is big, and the clearance effect is poor, has partial filter residue adhesion on the filter cloth after the clearance, produces the gap easily after the filter plate combines, and the high pressure filter medium can be followed and spouts in the gap between the filter plate and injure the people in the work, has very big potential safety hazard to the filter cloth is easy damaged, wastes a large amount of manpowers, material resources and time, and production efficiency is low.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a mechanical automatic diaphragm type filter press with filter cake falling off, which solves the problems in the prior art.

In order to achieve the purpose, the utility model provides the following scheme:

the utility model provides a mechanical automatic diaphragm type filter press with filter cake falling off, which comprises a frame, wherein a thrust plate is fixedly arranged on the frame, a pressing plate corresponding to the thrust plate is arranged on the frame in a sliding manner, a plurality of groups of filter plates are stacked between the pressing plate and the thrust plate, and limiting sliding assemblies are arranged on two sides of the stacked groups of filter plates; the filter plate is provided with a flow guide hole and a plurality of liquid outlet holes; filter tanks are arranged on two sides of the filter plate, filter cloth is arranged in the filter tanks of the filter plate, filter cloth in the adjacent filter plates forms a filter cavity, and the filter cavity is communicated with the flow guide holes; a flow guide cavity formed between the filter plate and the filter cloth is communicated with the liquid outlet hole; the filter plate is fixedly provided with a plurality of fixed bulges and a plurality of lifting bulges in the flow guide cavity, the fixed bulges are fixedly connected with a nozzle, and the middle part of the filter plate is provided with a first pressurizing pipeline communicated with the nozzle; the lifting bulges are fixedly connected to the same extrusion plate, a high-pressure channel is formed inside each lifting bulge, and a second pressurizing pipeline communicated with the high-pressure channel is formed in the middle of each filter plate.

Preferably, the two ends of the rack are respectively and fixedly connected with a machine head and a machine base, a hydraulic cylinder is fixedly connected between the machine head and the pressing plate, and the machine base is fixedly connected with the thrust plate.

Preferably, the thrust plate is fixedly connected with a feeding pipe, the flow guide hole on each filter plate corresponds to and is communicated with the feeding pipe, and the feeding pipe sequentially penetrates through the machine base and the thrust plate and is communicated with the flow guide hole in the adjacent filter plate;

the base is also fixedly connected with a liquid discharge pipe, and the liquid discharge pipe sequentially penetrates through the base and the thrust plate and is communicated with the liquid outlet hole in the adjacent filter plate.

Preferably, the longitudinal section of each filter plate is rectangular, four liquid outlet holes are formed in each filter plate, the four liquid outlet holes are respectively arranged at four right angles of each filter plate, the four liquid outlet holes in each filter plate are respectively and correspondingly arranged to form four liquid outlet pipelines, and the four liquid outlet pipelines are also provided with four groups and are respectively communicated with the four liquid outlet pipelines.

Preferably, the limiting sliding assembly comprises limiting plates arranged on two sides of the filter plate, the limiting plates are respectively fixedly connected with the machine head and the machine base, sliding grooves are formed in the limiting plates, sliding blocks with the same number as that of the filter plate are arranged in the sliding grooves on each side in a sliding mode, movable rods and connecting rods are fixedly arranged on two sides of the filter plate, and the movable rods penetrate through the corresponding sliding blocks and are fixedly connected with the sliding blocks; the other end of the movable rod penetrates through the fixing ring fixedly connected with the connecting rod, and the side edge of the filter plate is adjacent to the fixing ring through a fixed limiting chain.

Preferably, the bottom fixedly connected with of frame is no less than four groups of support columns, frame fixedly connected with collects the chute, collect the chute with support column fixed connection, the top of collecting the chute is seted up and is used for accepting the adjacent collection mouth of filter cake in the filter plate, the bottom of collecting the chute can be dismantled and be connected with the closing plate.

Preferably, the filter cloth comprises two pieces of filter cloth arranged in parallel and a connecting cloth fixedly arranged between the two pieces of filter cloth, the connecting cloth is matched with the flow guide holes, and the middle part of the connecting cloth is provided with a through hole for filtrate to flow through; the filter plate is provided with the mount pad in the outside in the water conservancy diversion hole, the filter cloth is close to the middle part in water conservancy diversion hole and passes through sealing connection spare and be connected with the mount pad can dismantle, the tip and the filter plate fixed connection of filter cloth, filter cloth is the elasticity cloth.

Preferably, the extrusion plate is circular, four groups of lifting protrusions are arranged in each flow guide cavity, the four groups of lifting protrusions are annularly distributed at the bottom of the extrusion plate, the distances between the adjacent lifting protrusions are the same, and the cross sectional area of each lifting protrusion is larger than that of each fixing protrusion.

Preferably, the connecting rod is of a hollow structure, the first pressurizing pipeline and the second pressurizing pipeline are respectively communicated with the connecting rods on two sides of the filter plate, and the first pressurizing pipeline and the second pressurizing pipeline are respectively connected with a pressurizing pump.

The utility model discloses the following technical effects: the utility model improves the filter pressing effect, the water content of the filter cake after filter pressing is low, the mechanical automatic falling of the filter cake of the diaphragm type filter press is realized, the labor intensity of workers is reduced, the working efficiency is improved, and the potential safety hazard is eliminated. The filter cake dropping effect of the utility model is better than that of manual cleaning, and the filter cake is not easy to generate a gap at the joint of the filter plates after being automatically dropped, so that the condition that the high-pressure filter medium is sprayed out from the gap between the filter plates to hurt people in the work is avoided, and the potential safety hazard is eliminated; meanwhile, the damage to the filter cloth in the manual cleaning process is avoided, and the service life of the filter cloth is prolonged.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

FIG. 1 is a schematic view of a membrane filter press according to the present invention;

FIG. 2 is a schematic view of the filter plate structure of the present invention;

FIG. 3 is a schematic view of the filter plate and filter cloth according to the present invention;

FIG. 4 is a schematic view of a filter chamber according to the present invention;

FIG. 5 is a schematic view of the structure of the filter cloth according to the present invention.

The automatic feeding device comprises a frame 1, a pushing plate 2, a pressing plate 3, a filter plate 4, a limiting sliding assembly 5, a feeding pipe 6, a filter cloth 7, a filter chamber 8, a machine head 9, a machine base 10, a hydraulic cylinder 11, a support column 12, a collecting chute 13, a pressure pump 14, a liquid discharge pipe 15, a flow guide hole 41, a liquid outlet hole 42, a filter tank 43, a flow guide chamber 44, a fixing bulge 45, a lifting bulge 46, a nozzle 47, a first pressure pipeline 48, a squeezing plate 49, a limiting plate 51, a sliding groove 52, a sliding block 53, a movable rod 54, a connecting rod 55, a fixing ring 56, a limiting chain 57, filter cloth 71, connecting cloth 72 and a sealing connecting piece 73.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.

Referring to fig. 1-5, the utility model provides a diaphragm type filter press with a mechanical automatic filter cake falling function, which comprises a frame 1, wherein a thrust plate 2 is fixedly arranged on the frame 1, a pressing plate 3 corresponding to the thrust plate 2 is slidably arranged on the frame 1, two ends of the frame 1 are respectively and fixedly connected with a machine head 9 and a machine base 10, a hydraulic cylinder 11 is fixedly connected between the machine head 9 and the pressing plate 3, and the machine base 10 is fixedly connected with the thrust plate 2. A plurality of groups of filter plates 4 are stacked between the pressing plate 3 and the thrust plate 2, and limiting sliding assemblies 5 are arranged on two sides of the stacked groups of filter plates 4; the maximum stroke of a plurality of groups of filter plates 4 between the machine head 9 and the machine base 10 is limited, and the left and right movement of the adjacent filter plates 4 is controlled by the hydraulic cylinder 11.

The limiting sliding assembly 5 comprises limiting plates 51 arranged at two sides of the filter plate 4, the limiting plates 51 are respectively fixedly connected with the machine head 9 and the machine base 10, a sliding chute 52 is arranged on each limiting plate 51, sliding blocks 53 with the same number as that of the filter plate 4 are arranged in the sliding chute 52 at each side in a sliding manner, movable rods 54 and connecting rods 55 are fixedly arranged at two sides of the filter plate 4, and the movable rods 54 penetrate through the corresponding sliding blocks 53 and are fixedly connected with the same; the other end of the movable rod 54 is fixedly connected with a fixed ring 56 through a connecting rod 55, and the side edges of adjacent filter plates 4 are connected through a limit chain 57 fixedly arranged on the adjacent fixed ring 56. Simultaneously cooperate through slider 53 and spout 52 among the spacing slip subassembly 5, control every filter plate 4 and only can move along the trend of spout 52 on the limiting plate 51, spout 52 in this application is the straight line trend, and then guarantees that filter plate 4 can single line bilateral motion as far as possible, simultaneously because spacing chain 57 connects adjacent filter plate 4, when guaranteeing that a set of pneumatic cylinder 11 can control all filter plates 4 and carry out the linkage, also can restrict the distance between the adjacent filter plate 4.

The filter plate 4 is provided with a flow guide hole 41 and a plurality of liquid outlet holes 42; two sides of each filter plate 4 are provided with filter grooves 43, filter cloth 7 is arranged in each filter plate 4 in each filter groove 43, the filter cloth 7 in the adjacent filter plate 4 forms a filter cavity 8, and each filter cavity 8 is communicated with the flow guide hole 41; the thrust plate 2 is fixedly connected with a feeding pipe 6, a flow guide hole 41 on each filter plate 4 corresponds to and is communicated with the feeding pipe 6, and the feeding pipe 6 sequentially penetrates through the machine base 10 and the thrust plate 2 to be communicated with the flow guide holes 41 in the adjacent filter plates 4; the machine base 10 is also fixedly connected with a liquid discharge pipe 15, and the liquid discharge pipe 15 sequentially penetrates through the machine base 10 and the thrust plate 2 to be communicated with a liquid outlet hole 42 in the adjacent filter plate 4.

In a further optimized scheme, the longitudinal section of each filter plate 4 is rectangular, four liquid outlet holes 42 are formed in each filter plate 4, the four liquid outlet holes 42 are respectively arranged at four right angles of each filter plate 4, the four liquid outlet holes 42 in all the filter plates 4 are respectively and correspondingly arranged to form four liquid outlet pipelines, and the four groups of liquid outlet pipes 15 are also arranged and are respectively communicated with the four liquid outlet pipelines. The discharge speed of the filtrate is accelerated through the four liquid outlet pipelines, and meanwhile, the pressurizing machines or the water pumps can be arranged at different positions of the channels, so that the filtrate can be discharged out of the filter press as soon as possible, the filtrate can be discharged as soon as possible, and the filter press efficiency is improved.

A flow guide cavity 44 formed between the filter plate 4 and the filter cloth 7 is communicated with the liquid outlet hole 42; the filter plate 4 is fixedly provided with a plurality of fixed bulges 45 and a plurality of lifting bulges 46 in the diversion cavity 44, the fixed bulges 45 are fixedly connected with a nozzle 47, and the middle part of the filter plate 4 is provided with a first pressurizing pipeline 48 communicated with the nozzle; the fixing bulge 45 has the flow guide cavity 44 formed between the filter cloth 7 and the filter plate 4 when the filter cloth and the filter plate are separated, so that filtrate permeating from the filter cavity 8 can flow into the liquid outlet hole 42 through the flow guide cavity 44 and then flow out of the filter press, and meanwhile, the nozzle 47 on the fixing bulge 45 can spray high-pressure water flow or gas, so that the filter cake between the two filter cloths 7 can be automatically separated under the action of the water flow or the gas, and the filter cloth 7 can be cleaned through the high-pressure water flow sprayed by the nozzle 47.

The plurality of lifting protrusions 46 are fixedly connected to the same extrusion plate 49, a high-pressure channel is formed inside each lifting protrusion 46, and a second pressurizing pipeline communicated with the high-pressure channel is formed in the middle of the filter plate 4. The structure of the lifting bulge 46 is similar to that of a hydraulic cylinder, high-pressure liquid is injected into a high-pressure channel or the liquid is pumped away, the movement of the extrusion plate 49 is controlled, the filter pressing efficiency can be accelerated through repeated extrusion movement of the extrusion plate 49 in the filter pressing process, and filter residues attached to the filter cloth 7 in the filter chamber 8 or a solid shell can be separated from the filter cloth 7, so that the filter cloth 7 is prevented from being blocked by solid particles, and the filter pressing efficiency is improved.

Further optimization scheme, the support column 12 of four groups is no less than to the bottom fixedly connected with of frame 1, chute 13 is collected to 1 fixedly connected with of frame, collect chute 13 and support column 12 fixed connection, the collection mouth that is used for accepting filter cake in the adjacent filter plate 4 is offered at the top of collecting chute 13, the bottom of collecting chute 13 can be dismantled and is connected with the closing plate, fall into after the filter cake of being convenient for drops automatically and collect chute 13 and store, and make the filter cake drop to the transport vechicle through opening and shutting of closing plate. The outer contour of the collecting chute 13 is in an inverted quadrangular frustum pyramid shape, so that filter cakes can be conveniently collected and discharged.

In a further optimized scheme, the filter cloth 7 comprises two filter cloths 71 arranged in parallel and a connecting cloth 72 fixedly arranged between the two filter cloths 71, the connecting cloth 72 is matched with the flow guide holes 41, and the middle part of the connecting cloth 72 is a through hole for filtrate to flow through; the installation seat is arranged on the outer side of the flow guide hole 41 of the filter plate 4, the middle part of the filter cloth 71 close to the flow guide hole 41 is detachably connected with the installation seat through a sealing connection piece 73, the end part of the filter cloth 71 is fixedly connected with the filter plate 4, the filter cloth 71 is elastic cloth, the filter cloth 71 can be bent under the condition of different pressures on two sides due to elasticity, and can shake through the extrusion action of the extrusion plate 49 to prevent solid particles from being attached to the filter cloth.

In a further optimized scheme, the extrusion plate 49 is annular, four groups of lifting protrusions 46 are arranged in each flow guide cavity 44, the four groups of lifting protrusions 46 are annularly distributed at the bottom of the extrusion plate 49, the distances between the adjacent lifting protrusions 46 are the same, the cross-sectional area of each lifting protrusion 46 is larger than that of each fixing protrusion 45, and the extrusion plate 49 can obtain enough supporting force to extrude filtrate in the filter cavity 8.

In a further optimized scheme, the connecting rod 55 is of a hollow structure, the first pressurizing pipeline 48 and the second pressurizing pipeline are respectively communicated with the connecting rod 55 on two sides of the filter plate 4, the first pressurizing pipeline 48 and the second pressurizing pipeline are respectively connected with the pressurizing pump 14, and high-pressure liquid or gas is filled in the first pressurizing pipeline 48 and the second pressurizing pipeline through the pressurizing pump 14, so that the nozzles can spray the liquid or gas, and meanwhile, the movement of the extrusion plate 49 can be controlled.

The working process is as follows:

the method comprises the following steps: the pressing plate 3 is controlled to work through the hydraulic cylinder 11, and under the limiting action of the limiting sliding assembly 5, the thrust plate 2 and the filter plate 4 between the pressing plates 3 are extruded into a whole;

step two: the feed pipe 6 starts to work, the filtered slurry enters each filter cavity 8 under the pushing of the feed pump, and the liquid in the filtered slurry passes through the filter cloth 7 under the pressure provided by the feed pump to enter the flow guide cavity 44 and flows into the liquid outlet 42 through the flow guide cavity 44 to flow out of the filter press; in the process, the movement of the extrusion plate 49 can be controlled, the filter pressing efficiency is accelerated by the repeated extrusion movement of the extrusion plate 49 in the filter pressing process, and filter residues or a solid shell attached to the filter cloth 7 in the filter cavity 8 can be separated from the filter cloth 7, so that the filter cloth 7 is prevented from being blocked by solid particles, and the filter pressing efficiency is improved;

step three: when the solid shell in the filter cavity 8 reaches a certain degree, the feed pump and the feed pipe 6 stop working, filter slurry in the feed pipe 6 is discharged, high-pressure gas and high-pressure liquid are respectively injected into the first pressurizing pipeline 48 and the second pressurizing pipeline by controlling the pressurizing pump 14, the high-pressure gas is filled into the flow guide cavity 44 to form high pressure, and the extrusion plate 49 begins to extrude the filter cloth 7, so that the filter slurry in each filter cavity 8 is further extruded to form a filter cake with low moisture content; stop working

Step four: separating the filter plates 4 between the thrust plate 2 and the pressing plate 3 through the hydraulic cylinder 11, respectively injecting high-pressure gas and high-pressure liquid into the first pressurizing pipeline 48 and the second pressurizing pipeline through controlling the pressurizing pump 14, filling the high-pressure gas into the flow guide cavity 44 to form high pressure, extruding the filter cloth 7 by the extruding plate 49, separating the adjacent filter plates 4 without extruding work of the hydraulic cylinder 11, controlling the extruding plate 49 to withdraw and returning the flow guide cavity 44 to normal pressure or negative pressure, so that the distance between the filter plates 4 is increased, and at the moment, the filter cakes fall into the collecting chute 13 below under the action of gravity;

step five: when the filter cake is adhered to the filter cloth 7, repeating the step four, and vibrating the filter cloth 7 under the action of the high-pressure air and the extrusion plate 49 to promote the filter cake to fall off; and finishing filter pressing work.

When solid particles are adhered to the filter cloth 7 and the effect of the step five is poor, or the filter cloth needs to be thoroughly cleaned, high-pressure liquid can be sprayed out through the spray nozzles to clean the filter cloth 7.

In the description of the present invention, it is to be understood that the terms "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, are merely for convenience of description of the present invention, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.

The above-described embodiments are merely illustrative of the preferred embodiments of the present invention, and do not limit the scope of the present invention, and various modifications and improvements of the technical solutions of the present invention can be made by those skilled in the art without departing from the spirit of the present invention, and the technical solutions of the present invention are within the scope of the present invention defined by the claims.

Claims (9)

1. The utility model provides a mechanical automation filter cake membrane filter press that drops which characterized in that: the filter plate stacking device comprises a rack (1), wherein a thrust plate (2) is fixedly arranged on the rack (1), a pressing plate (3) corresponding to the thrust plate (2) is arranged on the rack (1) in a sliding mode, a plurality of groups of filter plates (4) are stacked between the pressing plate (3) and the thrust plate (2), and limiting sliding assemblies (5) are arranged on two sides of the stacked groups of filter plates (4); the filter plate (4) is provided with a flow guide hole (41) and a plurality of liquid outlet holes (42); two sides of the filter plate (4) are provided with filter grooves (43), filter cloth (7) is arranged in the filter grooves (43) of the filter plate (4), filter cloth (7) in the adjacent filter plate (4) forms a filter cavity (8), and the filter cavity (8) is communicated with the flow guide holes (41); a flow guide cavity (44) formed between the filter plate (4) and the filter cloth (7) is communicated with the liquid outlet hole (42); the filter plate (4) is fixedly provided with a plurality of fixed bulges (45) and a plurality of lifting bulges (46) in the flow guide cavity (44), the fixed bulges (45) are fixedly connected with nozzles (47), and the middle part of the filter plate (4) is provided with a first pressurizing pipeline (48) communicated with the nozzles (47); the lifting bulges (46) are fixedly connected to the same extrusion plate (49), a high-pressure channel is formed in each lifting bulge (46), and a second pressurizing pipeline communicated with the high-pressure channel is formed in the middle of each filter plate (4).

2. The membrane filter press for mechanical automated filter cake removal according to claim 1, wherein: the two ends of the rack (1) are respectively fixedly connected with a machine head (9) and a machine base (10), a hydraulic cylinder (11) is fixedly connected between the machine head (9) and the pressing plate (3), and the machine base (10) is fixedly connected with the thrust plate (2).

3. The membrane filter press of claim 2, wherein the membrane filter press is configured to mechanically and automatically remove filter cake: the thrust plate (2) is fixedly connected with a feeding pipe (6), a flow guide hole (41) on each filter plate (4) corresponds to and is communicated with the feeding pipe (6), and the feeding pipe (6) sequentially penetrates through the machine base (10) and the thrust plate (2) to be communicated with the flow guide hole (41) in the adjacent filter plate (4);

the machine base (10) is further fixedly connected with a liquid discharge pipe (15), and the liquid discharge pipe (15) penetrates through the machine base (10) and the thrust plate (2) in sequence to be communicated with liquid outlet holes (42) in the adjacent filter plates (4).

4. The membrane filter press of claim 3, wherein the membrane filter press is configured to mechanically and automatically remove filter cake: the longitudinal section of the filter plate (4) is rectangular, four liquid outlet holes (42) are formed in each filter plate (4), the four liquid outlet holes (42) are arranged at four right angles of each filter plate (4) respectively, four liquid outlet pipelines are formed by correspondingly arranging the four liquid outlet holes (42) in each filter plate (4), and the four liquid outlet pipes (15) are also provided with four groups and communicated with the four liquid outlet pipelines respectively.

5. The membrane filter press of claim 2, wherein the membrane filter press is configured to mechanically and automatically remove filter cake: the limiting sliding assembly (5) comprises limiting plates (51) arranged on two sides of the filter plate (4), two ends of each limiting plate (51) are fixedly connected with the machine head (9) and the machine base (10) respectively, sliding grooves (52) are formed in the limiting plates (51), sliding blocks (53) with the same number as the filter plate (4) are arranged in the sliding grooves (52) on each side in a sliding mode, movable rods (54) and connecting rods (55) are fixedly arranged on two sides of the filter plate (4), and the movable rods (54) penetrate through the corresponding sliding blocks (53) and are fixedly connected with the same; the other end of the movable rod (54) penetrates through the fixing ring (56) fixedly connected with the connecting rod (55), and the side edge of the filter plate (4) is adjacent to the side edge of the filter plate through a limiting chain (57) fixedly arranged on the adjacent fixing ring (56).

6. The membrane filter press for mechanical automated filter cake removal according to claim 1, wherein: support column (12) of four groups are no less than to the bottom fixedly connected with of frame (1), frame (1) fixedly connected with collects chute (13), collect chute (13) with support column (12) fixed connection, the top of collecting chute (13) is offered and is used for accepting the adjacency the collection mouth of filter cake in filter plate (4), the bottom of collecting chute (13) can be dismantled and is connected with the closing plate.

7. The membrane filter press for mechanical automated filter cake removal according to claim 1, wherein: the filter cloth (7) comprises two pieces of filter cloth (71) which are arranged in parallel and a connecting cloth (72) which is fixedly arranged between the two pieces of filter cloth (71), the connecting cloth (72) is matched with the flow guide holes (41), and the middle part of the connecting cloth (72) is provided with a through hole through which filtrate flows; the filter plate (4) is provided with the mount pad in the outside of water conservancy diversion hole (41), the middle part that filters cloth (71) is close to water conservancy diversion hole (41) is passed through sealing connection spare (73) and is dismantled with the mount pad and be connected, the tip and filter plate (4) fixed connection of filtering cloth (71), filter cloth (71) are elastic cloth.

8. The membrane filter press for mechanical automated filter cake removal according to claim 1, wherein: the extrusion plate (49) is circular, four groups of lifting protrusions (46) are arranged in each flow guide cavity (44), the four groups of lifting protrusions (46) are annularly distributed at the bottom of the extrusion plate (49), the distances between the adjacent lifting protrusions (46) are the same, and the cross-sectional area of each lifting protrusion (46) is larger than that of each fixing protrusion (45).

9. The membrane filter press of claim 5, wherein the membrane filter press is configured to mechanically and automatically remove filter cake: the connecting rod (55) is of a hollow structure, the first pressurizing pipeline (48) and the second pressurizing pipeline are respectively communicated with the connecting rods (55) on two sides of the filter plate (4), and the first pressurizing pipeline (48) and the second pressurizing pipeline are respectively connected with a pressurizing pump (14).

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