High pressure filter press filter plate

Abstract

The utility model relates to filter plate technical field of filter press, especially a kind of high-pressure filter press filter plate, including press mould and bearing plate, press mould and bearing plate are all used metal material, filter plate is equipped between press mould and bearing plate, the bottom of press mould is equidistantly distributed and is opened with multiple groups of first circular groove, bearing plate is opened with second circular groove corresponding the position of first circular groove, high-pressure spring is fixedly arranged in the inside of second circular groove, the other end of high-pressure spring is fixedly connected with the inner wall of first circular groove, the center of bearing plate is opened with feed inlet, the utility model is set by press mould and bearing plate, and cooperate the use of filter plate, filter structure, sealing ring, when press mould and bearing plate are nested together, form a closed material chamber, can adapt to high-pressure squeezing environment, compared with traditional plastic resin filter plate, liquid and solid in material can be more fully separated under the action of high pressure, significantly improve filtration efficiency and filter cake dryness.

Description

Technical Field

[0001] This utility model relates to the field of filter plate technology for filter presses, and in particular to a filter plate for a high-pressure filter press. Background Technology

[0002] Plate and frame filter presses are currently the main equipment in the environmental protection industry, and are widely used in chemical, pharmaceutical, metallurgical, dye, food, brewing, ceramic, environmental protection and sewage treatment industries. The market demand is huge. As the core component of the filter press, the performance of the filter plate directly affects the filtration efficiency, filtration effect and equipment operation stability.

[0003] The existing technology has the following shortcomings;

[0004] Existing plate and frame filter presses use plastic resin filter plates, which have the disadvantages of poor high pressure resistance and inability to adapt to high pressure pressing scenarios. On the other hand, their water permeability is low, and they can only rely on water pressure for filtration in conventional pressing processes, which is difficult to meet the requirements of high-efficiency filtration. They cannot withstand high pressure and have low water permeability. Utility Model Content

[0005] This utility model addresses the shortcomings of existing technologies by providing the following technical solution:

[0006] A high-pressure filter press filter plate includes a mold and a support plate, both of which are made of metal. A filter plate is provided between the mold and the support plate. Multiple sets of first circular grooves are evenly distributed at the bottom of the mold. A second circular groove is provided on the support plate corresponding to the position of the first circular groove. A high-pressure spring is fixedly installed inside the second circular groove. The other end of the high-pressure spring is fixedly connected to the inner wall of the first circular groove. A feed port is provided at the center of the support plate.

[0007] As an improvement to the above technical solution, the mold is annular, and the inner surface of the mold is smooth and has protrusions.

[0008] As an improvement to the above technical solution, a first groove is provided on one side of the mold, and a second groove is provided on the bearing plate corresponding to the position of the first groove, forming a material chamber between the first groove and the second groove.

[0009] As an improvement to the above technical solution, the filter plate is arranged in a ring shape and divided into a first pressure ring position and a second pressure ring position, and the filter plate is provided with a filter structure.

[0010] As an improvement to the above technical solution, the filter structure includes a large pressure ring, a small pressure ring, and a filter cloth. Multiple sets of fixing holes are equally spaced on both the large and small pressure rings. The filter cloth is installed between the support plate and the filter plate through the large and small pressure rings, corresponding to the first pressure ring position and the second pressure ring position, respectively. A material channel is provided at the center of the filter cloth.

[0011] As an improvement to the above technical solution, the internal thread of the fixing hole is connected with a screw, and the bearing plate and the filter plate are provided with connecting holes at the positions corresponding to the fixing hole.

[0012] As an improvement to the above technical solution, the bearing plate is provided with a third groove at the position corresponding to the protrusion, and a sealing strip is provided inside the third groove.

[0013] As an improvement to the above technical solution, mounting grooves are provided on the opposite sides of the mold and the bearing plate, and sealing strips are also provided inside the mounting grooves.

[0014] The beneficial effects of this utility model are:

[0015] By using a mold and a pressure plate, along with filter plates, a filter structure, and sealing rings, a closed material chamber is formed when the mold and pressure plate are nested together. This chamber can withstand high-pressure pressing environments and, compared to traditional plastic resin filter plates, can more fully separate liquids and solids in materials under high pressure, significantly improving filtration efficiency and filter cake dryness. The use of large and small pressure rings and screws ensures that the filter cloth is fixed inside the material chamber. When the filter cloth is worn or needs to be replaced, it can be quickly replaced by removing the screws, simplifying the maintenance process, reducing equipment downtime, and lowering maintenance costs. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the internal structure of the bearing plate of this utility model;

[0018] Figure 3 This is a schematic diagram of the compression molding structure of this utility model;

[0019] Figure 4 This is a side view sectional structural diagram of the present invention;

[0020] Figure 5 This is an exploded view of the filter structure of this utility model;

[0021] Figure 6 This is a schematic diagram of the bearing plate structure of this utility model.

[0022] Reference numerals: 1. Press mold; 101. First circular groove; 102. First recess; 103. Protrusion; 2. Support plate; 201. Second circular groove; 202. High-pressure spring; 203. Feed inlet; 204. Second recess; 205. Third recess; 3. Filter plate; 301. First pressure ring position; 302. Second pressure ring position; 4. Filter structure; 401. Large pressure ring; 402. Small pressure ring; 403. Filter cloth; 404. Fixing hole; 405. Screw; 406. Material channel; 5. Mounting groove; 6. Sealing strip. Detailed Implementation

[0023] The following specific examples illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. This utility model can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of this utility model.

[0024] Please see Figure 1-6 This utility model provides a technical solution:

[0025] A high-pressure filter press filter plate includes a mold 1 and a support plate 2. Both the mold 1 and the support plate 2 are made of metal. A filter plate 3 is provided between the mold 1 and the support plate 2. Multiple sets of first circular grooves 101 are evenly distributed at the bottom of the mold 1. The support plate 2 is provided with a second circular groove 201 at the position corresponding to the first circular grooves 101. A high-pressure spring 202 is fixedly installed inside the second circular groove 201. The other end of the high-pressure spring 202 is fixedly connected to the inner wall of the first circular groove 101. A feed inlet 203 is provided at the center of the support plate 2.

[0026] When in use, the external hydraulic device applies pressure to the mold 1, and the mold 1 moves towards the support plate 2. At this time, the high-pressure spring 202 between the mold 1 and the support plate 2 is compressed, forming a reverse buffer force. At the same time, the material to be filtered enters through the feed port 203 in the center of the support plate 2 and is conveyed through the filter plate 3 to the material chamber formed by the first groove 102 of the mold 1 and the second groove 204 of the support plate 2.

[0027] In this embodiment, the mold 1 is annular, and the inner surface of the mold 1 is smooth and has protrusions 103.

[0028] By setting the protrusion 103, the mold 1 can be limited when it is close to the support plate 2, so as to prevent displacement.

[0029] In this embodiment, a first groove 102 is provided on one side of the mold 1, and a second groove 204 is provided on the bearing plate 2 at the position corresponding to the first groove 102. A material chamber is formed between the first groove 102 and the second groove 204.

[0030] With the first groove 102 and the second groove 204 set, the filter plate 3 and the filter structure 4 are installed and fixed during use, and the solid particles inside the material to be filtered accumulate inside to form a filter cake.

[0031] In this embodiment, the filter plate 3 is arranged in a ring and is divided into a first pressure ring position 301 and a second pressure ring position 302. The filter plate 3 is provided with a filter structure 4, which includes a large pressure ring 401, a small pressure ring 402 and a filter cloth 403. Multiple sets of fixing holes 404 are equally distributed on the large pressure ring 401 and the small pressure ring 402. The filter cloth 403 is installed between the support plate 2 and the filter plate 3 through the large pressure ring 401 and the small pressure ring 402, and corresponds to the first pressure ring position 301 and the second pressure ring position 302 respectively. A material channel 406 is provided at the center of the filter cloth 403.

[0032] Through the combined use of filter plate 3 and filter structure 4, during the filtration process, solid particles gradually accumulate on the surface of filter cloth 403 to form a filter cake. Filter cloth 403 provides support for the filter cake, keeping it in a certain shape and structure, preventing the filter cake from collapsing under pressure. With the setting of high pressure spring 202, after filtration is completed and the filter plates are separated, the elastic force of high pressure spring 202 is released, pushing the mold 1 to separate from the support plate 2, and the filter cake is taken out.

[0033] In this embodiment, a screw 405 is threaded inside the fixing hole 404, and connecting holes are provided on both the bearing plate 2 and the filter plate 3 at the positions corresponding to the fixing hole 404.

[0034] When installing the filter structure 4, screw 405 is inserted into the connecting hole on the filter plate 3 and screw 405 is rotated so that it spirals through the fixing hole 404 and is threadedly connected to the connecting hole on the support plate 2, thereby installing the large pressure ring 401 and the small pressure ring 402 on the first pressure ring position 301 and the second pressure ring position 302 respectively, and then installing and fixing the filter cloth 403.

[0035] In this embodiment, a third groove 205 is provided on the support plate 2 at the position corresponding to the protrusion 103, and a sealing strip 6 is provided inside the third groove 205.

[0036] By using the third groove 205 in conjunction with the sealing strip 6, the external hydraulic pressure applied to the mold 1 causes the mold 1 to come into contact with the support plate 2, and the protrusion 103 is embedded in the interior of the third groove 205 and comes into contact with the sealing strip 6, thereby sealing the connection between the mold 1 and the support plate 2 through the sealing strip 6.

[0037] In this embodiment, mounting grooves 5 are provided on the opposite sides of the mold 1 and the bearing plate 2, and sealing strips 6 are also provided inside the mounting grooves 5.

[0038] By using the mounting groove 5 in conjunction with the sealing strip 6, when assembling multiple filter plates, the sealing strip 6 can be embedded inside the corresponding mounting groove 5, thereby sealing the connection between multiple filter plates and preventing leakage.

[0039] The above embodiments are only used to illustrate the technical solution of this utility model, and are not intended to limit it. Any person skilled in the art can modify or change the above embodiments without departing from the spirit and scope of this utility model. Therefore, all equivalent modifications or changes made by those skilled in the art without departing from the spirit and technical concept disclosed in this utility model should still be covered by the claims of this utility model.

Claims

1. A filter plate for a high-pressure filter press, characterized in that, include: The mold (1) and the support plate (2) are both made of metal. A filter plate (3) is provided between the mold (1) and the support plate (2). Multiple sets of first circular grooves (101) are evenly distributed at the bottom of the mold (1). The support plate (2) is provided with a second circular groove (201) corresponding to the position of the first circular groove (101). A high-pressure spring (202) is fixedly installed inside the second circular groove (201). The other end of the high-pressure spring (202) is fixedly connected to the inner wall of the first circular groove (101). A feed port (203) is provided at the center of the support plate (2).

2. The filter plate for a high-pressure filter press according to claim 1, characterized in that: The mold (1) is annular, and the inner surface of the mold (1) is smooth and has protrusions (103).

3. A high-pressure filter press filter plate according to claim 1, characterized in that: The mold (1) has a first groove (102) on one side, and the bearing plate (2) has a second groove (204) at the position corresponding to the first groove (102). A material chamber is formed between the first groove (102) and the second groove (204).

4. A high-pressure filter press filter plate according to claim 1, characterized in that: The filter plate (3) is arranged in a ring and is divided into a first pressure ring position (301) and a second pressure ring position (302), and a filter structure (4) is provided on the filter plate (3).

5. A high-pressure filter press filter plate according to claim 4, characterized in that: The filter structure (4) includes a large pressure ring (401), a small pressure ring (402), and a filter cloth (403). Multiple sets of fixing holes (404) are equally spaced on the large pressure ring (401) and the small pressure ring (402). The filter cloth (403) is installed between the support plate (2) and the filter plate (3) through the large pressure ring (401) and the small pressure ring (402), respectively corresponding to the first pressure ring position (301) and the second pressure ring position (302). A material channel (406) is provided at the center of the filter cloth (403).

6. A filter plate for a high-pressure filter press according to claim 5, characterized in that: The fixing hole (404) is internally threaded with a screw (405), and the bearing plate (2) and the filter plate (3) are both provided with connecting holes at the positions corresponding to the fixing hole (404).

7. A high-pressure filter press filter plate according to claim 1, characterized in that: The bearing plate (2) has a third groove (205) at the position corresponding to the protrusion (103), and a sealing strip (6) is provided inside the third groove (205).

8. A filter plate for a high-pressure filter press according to claim 1, characterized in that: The mold (1) and the bearing plate (2) are provided with mounting grooves (5) on opposite sides, and the mounting grooves (5) are also provided with sealing strips (6).

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