CN217854742U - Simplified self-cleaning filter plate assembly - Google Patents

Abstract

The utility model relates to a filter-pressing equipment field especially relates to a simplify self-cleaning filter plate subassembly. The utility model saves the external pipeline of the filter plate in the filter press, automatically forms a pipeline by the automatic butt joint of each functional hole on the filter plate, has simple appearance, inputs high-pressure gas in the squeezing process through the formed pipeline to back-blow and clean the feeding pipe, and can not cause the blockage due to the drying of the raw material in the feeding pipe after the squeezing is finished; secondly, high-temperature gas can be introduced through the formed pipeline to blow and dry the filter cake in the filter chamber without entering each filter plate and connecting an air inlet pipe externally; in addition, after the pressing is finished, the filter plate can be used for cleaning the filter cloth in the filter chamber by introducing gas, cleaning liquid or gas-liquid mixture through a formed pipeline. And moreover, the stroke of the filter plates on the frame is increased, a plurality of filter plates can be opened at one time to unload materials, and the working efficiency is improved.

Description

Simplified self-cleaning filter plate assembly

Technical Field

The utility model relates to a filter-pressing equipment field especially relates to a simplify self-cleaning filter plate subassembly.

Background

The filter plate in the plate-and-frame filter press is one of the important components, a series of filter plates form a filter press array to press materials needing filter pressing and form a filter cake, so the performance of the filter plate directly determines the performance of the filter press, the prior filter plate needs manual intervention more or less in the pressing process or after the pressing process is completed, in addition, if the water and the air of each filter plate array need to be communicated, external pipeline connection needs to be carried out on each filter plate, the connection is complicated, the appearance is influenced, waste materials are consumed, faults are easy to occur, and the stroke range of the filter plate is influenced. After the filter pressing is finished, extra equipment or manual assistance is needed for discharging the mud cakes and cleaning the filter cloth, and the efficiency of the filter press is finally influenced.

Disclosure of Invention

In order to overcome the defects of the prior art, a filter plate with a simple appearance and capable of automatically butting pipelines is needed, and the filter plate is more efficient, more intelligent and lower in cost when applied to filter pressing. The utility model relates to a simplify self-cleaning filter plate subassembly, including two kinds of filter plates of the unanimous A board of appearance and B board, a unit is pieced into to two kinds of boards, wherein the A board is equipped with the air-blowing hidden pipe and communicates with each other with the air-blowing hole, at the filter-pressing in-process, the multiunit formation filter-pressing array is arranged at the interval of A board and B board, every kind of filter plate includes the filter cloth, the sheet frame, the diaphragm, the core, the hangers, the lug, use the core as the center, in the frame on the pressure filter, it is good to hang the two roof beams of establishing in the frame through the hangers, the filter plate bilateral symmetry, from near to far in proper order range have the diaphragm, the sheet frame, the fastening forms a whole all around the sheet frame, the filter cloth is at holistic skin through the feed inlet cladding. The utility model discloses an it lies in clearly and definitely: the filter plate is vertical to the central plane direction of the core plate and is provided with a feed hole, an upper left filtrate hole, an upper right filtrate hole, a lower left filtrate hole, a lower right filtrate hole, an air blowing hole and a back flushing hole, all the holes are opposite through holes, the filter pressing array is tightly pressed, adjacent corresponding holes are in sealed butt joint, and the butt joint can use a sealing ring or a sealing gasket. And a feeding splitter is arranged between the adjacent corresponding feeding holes of the plate A and the plate B in the filter pressing array, and a filter pressing object flows out from the feeding holes through the splitter ports of the feeding splitters. All holes can be respectively in butt joint in a sealing mode to form a pipeline in the process that the filter pressing array is pressed tightly, the feed inlet is formed in the middle of a convex portion at the upper end of the filter plate, the hanging lugs comprise left hanging lugs and right hanging lugs which are respectively arranged at the upper portions of the left side edge and the right side edge of the filter plate, an upper left filter liquid hole and a back flushing hole are formed in the left hanging lugs, an upper right filter liquid hole and an air blowing hole are formed in the right hanging lugs, the lower portions of the left side edge and the right side edge of the filter plate are respectively provided with a left lug and a right lug, and a lower left filter liquid hole and a lower right filter liquid hole are respectively arranged on the left lug and the right lug (the left upper portion and the right portion are opposite); in the filter pressing process, when two adjacent filter plates are pressed tightly in parallel, the adjacent side faces of the plate frames of the two adjacent filter plates are attached, a closed cavity is formed by the side faces of inner rings of the two plate frames and the adjacent diaphragm faces to form a filter chamber, a plurality of water guide grooves are arranged on a diaphragm face forming the inner surface of the filter chamber, the filter cloth covers the inner surface of the filter chamber, and a filter pressing object flows into the filter chamber from the flow dividing port; in the filter pressing process, when two adjacent filter plates are pressed tightly in parallel, the adjacent side faces of the plate frames of the two adjacent filter plates are attached, a closed cavity is formed by the side faces of the inner rings of the two plate frames and the adjacent diaphragm faces to form a filter chamber, a plurality of water guide grooves are arranged on the diaphragm face forming the inner surface of the filter chamber, the filter cloth covers the inner surface of the filter chamber, and a filter pressing object flows into the filter chamber from the flow dividing port. The inner surface of the diaphragm in the A plate, the outer surface of the core plate and the periphery compressed by the plate frame form two film blowing cavities which are symmetrical by using the core plate, the core plate is provided with an air blowing concealed pipe, one end of the air blowing concealed pipe can be simultaneously communicated with the two symmetrical film blowing cavities, the other end of the air blowing concealed pipe is communicated with an air blowing hole, and the diaphragm forming the film blowing cavities is enabled to be protruded outwards by inputting external pressure air. The air pressure here is around 12 kg/cm. The fermented soybean air concealed pipe can be pre-embedded in the film before the core plate is manufactured, and the core plate is made of high-temperature-resistant synthetic resin material.

Furthermore, an upper blind pipe is transversely arranged at the upper part of the plate frame in the core plate of the plate A, and the inlet end of the upper blind pipe is communicated with the upper right filtrate hole; a plurality of filter chamber upper holes are formed in the side surface of the inner ring of the plate frame at the upper end of each filter chamber and are communicated with the upper blind pipes and the filter chambers; a lower blind pipe is transversely arranged at the lower part of the plate frame in the plate core A, and the inlet end of the blind pipe is communicated with the left lower filtrate hole; and a plurality of lower filtering chamber holes are formed in the side surface of the inner ring of the plate frame at the lower end of each filtering chamber and are communicated with the lower blind pipe and the filtering chambers.

Similarly, an upper blind pipe is transversely arranged at the upper part of the plate frame in the core plate of the plate B, and the inlet end of the upper blind pipe is communicated with the upper left filtrate hole; and a lower blind pipe is transversely arranged at the lower part of the plate frame in the B plate core plate, and the inlet end of the lower blind pipe is communicated with the right lower filtrate hole.

Further, when the filter pressing array is compressed tightly, the back-blowing holes are mutually overlapped to form a back-blowing pipe, the feeding holes are mutually overlapped to form a feeding pipe, the back-blowing pipe is connected with the feeding pipe through an external pipeline, and high-pressure gas or gas-liquid mixture input from the outside can blow and wash each feeding hole in the feeding pipe through the back-blowing pipe.

Furthermore, the upper left filtrate hole, the upper right filtrate hole, the lower left filtrate hole and the lower right filtrate hole of multiunit superpose respectively and form upper left filtrate pipe, upper right filtrate pipe, lower left filtrate pipe and lower right filtrate pipe, and four filtrate pipes all discharge the filtrating in the filter pressing array squeezes the in-process.

Further, when the filter pressing array is compressed tightly, filter residues in the filter chamber are squeezed into filter cakes, upper blind pipes in the filter chamber and the filter chamber are arranged in a reverse staggered mode, gas with the temperature of 100-180 ℃ is input through an external pipeline and enters the left upper filter liquid pipe and the right upper filter liquid pipe or enters the filter chamber, the gas can be sprayed out from the upper holes of the filter chambers of the plate A and the plate B simultaneously to heat and blow the filter cakes in the filter chamber, and the filter cakes are discharged from the left lower filter liquid hole and the right lower filter liquid hole.

The filter press comprises a filter press array, a plurality of groups of upper left filtrate holes, upper right filtrate holes, lower left filtrate holes and lower right filtrate holes, wherein the groups of upper left filtrate holes, upper right filtrate holes, lower left filtrate holes and lower right filtrate holes are respectively superposed to form upper left filtrate pipes, upper right filtrate pipes, lower left filtrate pipes and lower right filtrate pipes, and the four filtrate pipes all discharge filtrate in the pressing process of the filter press array.

Further, after the filter cake is dried, the upper blind pipes in the filter cake and the filter cake are arranged in a reverse staggered mode, high-pressure gas is input through an external pipeline to enter the left upper filter liquor pipe and/or the right upper filter liquor pipe and enter the filter chamber, and the gas can be sprayed out from the upper holes of the filter chambers of the plate A and the plate B simultaneously to blow the filter cake and the filter cloth in the filter chamber away.

Further, when the filter cake after being squeezed is removed, the reverse staggered arrangement of last blind pipe in the middle of A board and the B board in the filter-pressing array, when external pipeline input high-pressure gas or liquid got into upper left filtrate pipe and/or upper right filtrate pipe, high-pressure gas or liquid can be followed the filter chamber upper bore of A board and B board and spout the filter cloth in the air filter chamber simultaneously and blast.

Preferably, when the squeezed filter cake is removed, a plurality of groups of the plates A and the plates B are squeezed to form a filter pressing array, an empty filter chamber is formed between two adjacent plates, upper blind pipes in the two empty filter chambers are arranged in a reverse staggered mode, high-pressure gas or liquid is input through an external pipeline in a staggered mode and alternately enters an upper left filter liquid pipe and an upper right filter liquid pipe, and the high-pressure gas or liquid in the filter chamber can be sprayed out from Kong Jiaoti on the filter chamber of the plates A or the plates B to blow off filter cloth in the empty filter chamber.

Has the advantages that: the utility model saves the external pipeline of the filter plate, automatically forms a pipeline by the automatic butt joint of each functional hole on the filter plate, has simple appearance, can carry out back-flushing cleaning on the feeding pipe by inputting high-pressure gas in the squeezing process through the formed pipeline, and can not cause blockage due to the drying of raw materials in the feeding pipe after the squeezing is finished; secondly, high-temperature gas can be introduced through the formed pipeline to blow and dry the filter cake in the filter chamber without entering each filter plate and connecting an air inlet pipe externally; in addition, after the squeezing is finished, the filter plate can be used for cleaning the filter cloth in the filter chamber by introducing gas, cleaning liquid or gas-liquid mixture through a formed pipeline; and moreover, the stroke of the filter plates on the frame is increased, a plurality of filter plates can be opened at one time to unload materials, and the working efficiency is improved.

Drawings

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

FIG. 1 is a front view of a simplified self-cleaning filter plate assembly A according to an embodiment of the present invention;

FIG. 2 is a left side view of the cross-section of FIG. 1 taken along line O-O;

FIG. 3 is an enlarged view of region M of FIG. 2;

FIG. 4 is a front view of the cross-section of the core plate taken along the center plane of the core plate in the direction P-P in FIG. 1;

FIG. 5 is a left side cross-sectional view of FIG. 1 taken along line Q-Q;

FIG. 6 is an enlarged view of region N of FIG. 5;

FIG. 7 is a perspective view of the combination of the two filter plates A and B in a filter-press array;

FIG. 8 is a front perspective view of FIG. 7;

FIG. 9 is a schematic top cross-sectional view of FIG. 8 taken along line T-T;

FIG. 10 is an enlarged view of region L of FIG. 9;

FIG. 11 is a schematic sectional view of the upper portion of FIG. 8 taken along line S-S;

FIG. 12 is an enlarged view of region K of FIG. 11;

FIG. 13 is a schematic perspective view of a feed splitter;

FIG. 14 is a schematic center section view of the assembly of the A and B plates and the feed splitter.

The names of the labels in the figure: the filter plate comprises a filter plate 10, a core plate 11, a diaphragm 12, a plate frame 13, a filter chamber 14, a feed hole 15, a plate frame inner ring 16, a filter chamber upper hole 17, a filter chamber lower hole 18, a left hanging lug 19, a right hanging lug 20, a left lug 21, a right lug 22, a left upper filtrate hole 23, a right upper filtrate hole 24, a left lower filtrate hole 25, a right lower filtrate hole 26, a back flushing hole 27, a fermented soybean air hole 28, an upper blind pipe 29, a lower blind pipe 30, a fermented soybean air blind pipe 31, a tympanic membrane cavity 32, an A plate, a B plate, a 30 (A) lower blind pipe 30, a 30 (B) lower blind pipe 30, a 18 (A) lower hole 18, a (B) lower hole 18, a 29 (A) upper blind pipe, a 29 (B) upper blind pipe, a feed diverter 40 and a diversion port 41.

Detailed Description

To facilitate understanding of the present invention, the present invention will be described below with reference to specific embodiments. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the present invention is for the purpose of describing particular embodiments only, and is for the purpose of convenience only, such as directional terms including upper, lower, left, right, etc., and is not intended to limit the present invention.

In the example, as shown in fig. 1 to 4, the utility model discloses a simplify self-cleaning filter plate subassembly, including filter cloth (not drawn in the figure), sheet frame 13, diaphragm 12, core 11, hangers, lug, use core 11 as the center, both sides face symmetry has diaphragm 12, sheet frame 13, filter cloth (not drawn in the figure) from near to far stacking gradually, and two-layer sheet frame 13 in the outside is closely fixed two-layer diaphragm 12 all around respectively all around and is formed a whole around core 11 both sides face, and the filter cloth forms filter plate 10 at holistic skin through feed inlet 15 cladding. The utility model discloses an it lies in clearly and definitely: a feeding hole, an upper left filtrate hole 23, an upper right filtrate hole 24, a lower left filtrate hole 25, a lower right filtrate hole 26, a fermented soybean air hole 28 and a back flushing hole 27 are arranged in the direction perpendicular to the central plane of the core plate 11, the edges of all the holes are on the same plane with the outer side surface of the plate frame, all the holes can be respectively sealed and butted to form a pipeline when the filter plate 10 is aligned and closely combined with the edge of another adjacent filter plate 10, a feeding hole 15 is arranged in the middle of the upper side of the filter plate 10, a hanging lug comprises a left hanging lug 19 and a right hanging lug 20 which are respectively arranged on the upper parts of the left side edge and the right side edge of the filter plate 10, the upper left filtrate hole 23 and the back flushing hole 27 are arranged on the left hanging lug 19, the upper right filtrate hole 24 and the fermented soybean air hole 28 are arranged on the right hanging lug 20, the lower parts of the left side edge and the right side edge of the filter plate 10 are respectively provided with a left lug 21 and a right lug 22, and the lower left lower filtrate hole 25 and the right lower filtrate hole 26 are respectively arranged on the left lug 21 and the right lug 22; in the filter pressing process, when two adjacent filter plates 10 are aligned in parallel and close to each other, the adjacent side faces of the plate frames 13 of the two adjacent filter plates are attached, the side faces of the inner rings of the two plate frames and the adjacent surface of the diaphragm 12 form a closed cavity serving as a filter chamber 14, and filter cloth covers the inner surface of the filter chamber 14; two membrane-blowing cavities 32 (see fig. 3) which are symmetrical by taking the core plate 11 as are formed on the inner surface of the diaphragm 12, the outer surface of the core plate 11 and the periphery pressed by the plate frame 13, a fermented soybean air concealed pipe 31 (see fig. 4) is arranged on the core plate 11, one end of the fermented soybean air concealed pipe can be simultaneously communicated with the two symmetrical membrane-blowing cavities 32, the other end of the fermented soybean air concealed pipe is communicated with the air-blowing holes (see fig. 5 and 6), and the diaphragm 12 forming the membrane-blowing cavities 32 can be protruded outwards by inputting external pressure air.

As shown in fig. 13 to 14, a feed splitter 40 is provided between the adjacent feed holes of the a plate and the B plate, and the filter pressing object flows out from the feed holes through a split port 41 of the feed splitter.

In one example, as shown in fig. 4 to 6, an upper blind pipe 29 is transversely arranged in the core plate 11 at the upper part of the plate frame 13, and the inlet end of the upper blind pipe is communicated with the upper right filtrate hole 24; a plurality of filtering chamber upper holes 17 are formed in the side face of the inner ring of the plate frame at the upper end of the filtering chamber 14 and are communicated with an upper blind pipe 29 and the filtering chamber 14.

A lower blind pipe 30 is transversely arranged at the lower part of the plate frame 13 in the core plate 11, and the inlet end of the blind pipe is communicated with the left lower filtrate hole 25; the side surface of the inner ring of the plate frame at the lower end of the filtering chamber 14 is provided with a plurality of filtering chamber lower holes 18 which are communicated with the lower blind pipe 30 and the filtering chamber 14.

As shown in fig. 7 to 12, the filter plate 10 is divided into two plates, i.e., a plate a and a plate B, the two plates have the same dimensions and are connected with each other in a matched manner, when a filter-pressing array is formed by a plurality of plates, the plates a and B are arranged at intervals, wherein the inlet of an upper blind pipe 29 (a) in the plate a is communicated with an upper right filtrate hole 24, and the inlet of an upper blind pipe 29 (B) in the plate B is communicated with an upper left filtrate hole; an inlet of a lower blind pipe 30 (A) in the plate A is communicated with a lower left filtrate port, and an inlet of a lower blind pipe 30 (B) in the plate B is communicated with a lower right filtrate port; the positions of the air-blowing concealed pipes in the A plate and the B plate are consistent. As shown in FIG. 10, the relationship between the A plate filter chamber lower hole 18 (A) and the B plate filter chamber lower hole 18 (B) can also be seen.

When a plurality of groups of plates A and plates B are tightly extruded to form a filter pressing array, the back flushing holes 27 are mutually overlapped to form back flushing pipes, the feeding holes are mutually overlapped to form feeding pipes, the back flushing pipes are connected with the feeding pipes through external pipelines, and high-pressure gas or gas-liquid mixture input from the outside can blow and wash each feeding hole in the feeding pipes through the back flushing pipes.

The upper left filtrate hole 23, the upper right filtrate hole 24, the lower left filtrate hole 25 and the lower right filtrate hole 26 are respectively superposed to form an upper left filtrate pipe, an upper right filtrate pipe, a lower left filtrate pipe and a lower right filtrate pipe, and the four filtrate pipes discharge filtrate in the pressing process of the filter pressing array.

The filter pressing array is formed by tightly pressing a plurality of groups of plates A and plates B, when filter cakes in the filter chambers are tightly pressed, the upper blind pipes 29 in the filter chambers are arranged in a reverse staggered mode, gas with the temperature of 100-180 ℃ is input through an external pipeline and enters the left upper filter liquor pipe and the right upper filter liquor pipe and enters the filter chambers, and the gas can be sprayed out from the upper holes 17 of the filter chambers of the plates A and the plates B simultaneously to heat and blow the filter cakes in the filter chambers and is discharged from the left lower filter liquor holes 26 and the right lower filter liquor holes 26.

In the example, as shown in fig. 8 to 12, when the squeezed filter cake is removed, a plurality of groups of plates a and B are squeezed tightly to form a filter pressing array, the upper blind pipes 29 in the two are arranged in a reverse staggered manner, and when high-pressure gas or liquid is input through an external pipeline to enter the upper left filtrate pipe and the upper right filtrate pipe, the high-pressure gas or liquid can be simultaneously sprayed out from the upper filter chamber holes 17 of the plates a and B to flush the filter cloth in the empty filter chamber.

Preferably, when the pressed filter cake is removed, a plurality of groups of plates A and B are tightly squeezed to form an empty filter chamber between two adjacent plates of the filter pressing array, the upper blind pipes 29 in the empty filter chamber and the upper blind pipes are arranged in a reverse staggered manner, and when high-pressure gas or liquid is input in a staggered manner through an external pipeline and alternately enters the upper left filter solution pipe and the upper right filter solution pipe, the high-pressure gas or liquid in the filter chamber can be alternately sprayed out from the upper holes 17 of the filter chamber of the plates A or B to blow and wash the filter cloth in the empty filter chamber.

All mechanical action processes are completed under the control of the detection device, the control circuit and the computer program, and can be performed step by step, so that the time is saved, and the efficiency is greatly improved.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the claims. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims (9)

1. A simplified self-cleaning filter plate assembly, comprising: the assembly comprises an A-type plate and a B-type plate which are consistent in appearance, a feeder and filter cloth are clamped between the A-type plate and the B-type plate, and a plurality of assemblies are arranged in order in a filter press to form a filter press array; the A-type plate comprises a diaphragm, a core plate and plate frames, wherein the core plate is used as a center, raised lines on the periphery of the diaphragm are symmetrically sleeved on sealing grooves on the periphery of the side faces of the diaphragm, the two plate frames are fastened and superposed on the outer sides of the two diaphragms to form a whole, and a filtering water channel is carved on the side face of the B-type plate; the component is sequentially laminated with an A-type plate, a filter cloth, a feeder, a filter cloth and a B-type plate from near to far, wherein when the A-type plate and the B-type plate are clamped, the periphery of an inner plate frame is tightly attached to the periphery of the inner plate frame by the feeder and the filter cloth, and a sealed filter chamber is formed in the plate frame between the A, B plates;

the plate A is provided with a left hanging lug and a right hanging lug which are fused with the core plate into a whole, the core plate is provided with a feed hole, a left upper filtrate hole, a right upper filtrate hole, a left lower filtrate hole, a right lower filtrate hole, an air blowing hole and a back flushing hole, all the holes are through holes, and adjacent corresponding holes are in sealing butt joint in the process that the filter pressing array is pressed tightly;

a feeding splitter is arranged between the adjacent corresponding feeding holes of the plate A and the plate B in the filter pressing array, and a filter pressing object flows out from the feeding holes through the splitting ports of the feeding splitter;

all holes can be respectively in butt joint in a sealing manner to form a pipeline in the process that the filter pressing array is pressed tightly, a feed inlet is formed in the middle of a convex part at the upper end of the filter plate, the hangers comprise left hangers and right hangers, the left hangers and the right hangers are respectively arranged at the upper parts of the left side edge and the right side edge of the filter plate, left upper filtrate holes and back flushing holes are formed in the left hangers, right upper filtrate holes and air blowing holes are formed in the right hangers, the lower parts of the left side edge and the right side edge of the filter plate are respectively provided with left lugs and right lugs, and left lower filtrate holes and right lower filtrate holes are respectively formed in the left lugs and the right lugs;

in the filter pressing process, when two adjacent filter plates are aligned in parallel and pressed, the adjacent side faces of the two plate frames are attached, a closed cavity is formed by the side faces of the inner rings of the two plate frames and the adjacent diaphragm faces to form a filter chamber, a plurality of water guide grooves are arranged on the diaphragm face forming the inner surface of the filter chamber, the filter cloth covers the inner surface of the filter chamber, and a filter pressing object flows into the filter chamber from the flow splitting port;

the inner surface of the diaphragm in the A plate, the outer surface of the core plate and the periphery compressed by the plate frame form two film blowing cavities which are symmetrical by using the core plate, the core plate is provided with an air blowing concealed pipe, one end of the air blowing concealed pipe can be simultaneously communicated with the two symmetrical film blowing cavities, the other end of the air blowing concealed pipe is communicated with an air blowing hole, and the diaphragm forming the film blowing cavities is enabled to be protruded outwards by inputting external pressure air.

2. The simplified self-cleaning filter plate assembly according to claim 1, wherein an upper blind pipe is transversely arranged in the core plate of the plate A at the upper part of the plate frame, and the inlet end of the blind pipe is communicated with the upper right filtrate hole; a plurality of filter chamber upper holes are formed in the side surface of the inner ring of the plate frame at the upper end of each filter chamber and are communicated with the upper blind pipes and the filter chambers; a lower blind pipe is transversely arranged at the lower part of the plate frame in the plate core A, and the inlet end of the blind pipe is communicated with the left lower filtrate hole; and a plurality of lower filtering chamber holes are formed in the side surface of the inner ring of the plate frame at the lower end of each filtering chamber and are communicated with the lower blind pipe and the filtering chambers.

3. The simplified self-cleaning filter plate assembly according to claim 2, wherein an upper blind pipe is transversely arranged in the core plate of the B plate at the upper part of the plate frame, and the inlet end of the blind pipe is communicated with the upper left filtrate hole; and a lower blind pipe is transversely arranged at the lower part of the plate frame in the core plate B, and the inlet end of the blind pipe is communicated with the right lower filtrate hole.

4. The simplified automatic cleaning filter plate assembly according to claim 3, wherein when said filter pressing array is pressed, said blowback holes are overlapped to form a blowback pipe, said feed holes are overlapped to form a feed pipe, said blowback pipe is connected to said feed pipe through an external pipe, and high pressure gas or gas-liquid mixture inputted from outside can blow each feed hole in said feed pipe through said blowback pipe.

5. The simplified self-cleaning filter plate assembly according to claim 4, wherein said plurality of sets of upper left filtrate hole, upper right filtrate hole, lower left filtrate hole and lower right filtrate hole are stacked to form upper left filtrate pipe, upper right filtrate pipe, lower left filtrate pipe and lower right filtrate pipe, respectively, and all four filtrate pipes discharge filtrate during filter press array pressing.

6. The simplified self-cleaning filter plate assembly according to claim 5, wherein when said filter press array is compressed and the filter residue in the filter chamber is squeezed into a filter cake, the upper blind tubes of the two are arranged in an inverted staggered arrangement, and gas introduced through the external conduit enters the upper left filtrate tube and/or the upper right filtrate tube and enters the filter chamber and is discharged from said lower left and right filtrate holes.

7. The simplified self-cleaning filter plate assembly according to claim 6, wherein when the filter cake dries, the blind top tubes are arranged in a reverse staggered arrangement, and high pressure gas is introduced through an external pipeline into the top left filtrate tube and/or the top right filtrate tube and into the filter chamber, so that gas can be simultaneously ejected from the filter chamber top holes of the A plate and the B plate.

8. The simplified self-cleaning filter plate assembly of claim 5, wherein when pressed filter cake is removed, the upper blind pipes in the middle of the plates A and B in the filter press array are arranged in a reverse staggered manner, and when high-pressure gas or liquid is input through the external pipeline to enter the upper left filtrate pipe and/or the upper right filtrate pipe, the high-pressure gas or liquid can be sprayed out from the filter chambers of the plates A and B at the same time.

9. The simplified self-cleaning filter plate assembly of claim 5, wherein when the pressed filter cake is removed, a plurality of groups of plates A and plates B are squeezed to form a hollow filter chamber between two adjacent plates of the filter press array, the upper blind pipes in the hollow filter chambers are arranged in a reverse staggered manner, and when high-pressure gas or liquid is alternately input into the upper left filter pipe and the upper right filter pipe through an external pipeline in a staggered manner, the high-pressure gas or liquid in the filter chambers can be sprayed out from the filter chambers of the plates A or B Kong Jiaoti.

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