Coal slime filter press

Abstract

The utility model provides a coal slime filter press, and relates to the technical field of coal slime filter pressing, the coal slime filter press comprises a box body, a filter grating is arranged in the box body, the box body is divided into an extrusion chamber and a drainage chamber from top to bottom by the filter grating, one side of the box body is provided with a feed hopper communicated with the extrusion chamber, the other side of the box body is provided with a discharge port and a drainage port, and the top of the filter grating is provided with filter cloth; the box body is provided with an extrusion assembly used for extruding coal slime in the extrusion chamber and a pushing discharge assembly used for pushing the coal slime compacted on the filter cloth to the discharge port. According to the utility model, the solid-liquid separation in the coal slime is more efficient through the arrangement of the filter grating, and the filter cloth can intercept finer solid particles; and only liquid can enter the drainage chamber through the filter cloth and the filter grid, the pushing discharging assembly can push coal slime compacted on the filter cloth to the discharging opening, it is ensured that the coal slime can be stably and efficiently discharged from the discharging opening, residues of the coal slime on the filter cloth are reduced, and the production efficiency is improved.

Description

Technical Field

[0001] This application relates to the field of coal slime filter press technology, and more specifically, to a coal slime filter press. Background Technology

[0002] A coal slime filter press is a solid-liquid separation device used in the coal industry, primarily for processing coal slime. Coal slime is a fine-particle, high-moisture product generated during coal washing. A filter press can separate the solids and liquids in the coal slime, yielding a filter cake with lower moisture content and a relatively clear filtrate.

[0003] However, in existing coal slime filter presses, after the coal slime is compacted, it tends to stick to the filter cloth and is not easy to remove, making it difficult to discharge and affecting production efficiency. Summary of the Invention

[0004] The purpose of this application is to provide a coal slime filter press that can solve the technical problem that after the coal slime is compacted, it is easy for the coal slime to stick to the filter cloth and is not easy to remove, which makes it difficult to discharge the coal slime and affects the production efficiency.

[0005] This application provides a coal slime filter press, including a housing with a filter grid inside. The filter grid divides the housing into a compression chamber and a drainage chamber from top to bottom. A feed hopper connected to the compression chamber is provided on one side of the housing, and a discharge port and a drain port are provided on the other side of the housing. The discharge port is connected to the compression chamber and the filter grid, and the drain port is connected to the drainage chamber. A filter cloth is provided on the top of the filter grid. The housing is provided with a compression assembly for compressing the coal slime in the compression chamber and a pusher assembly for pushing the coal slime compacted on the filter cloth toward the discharge port.

[0006] Furthermore, the material pushing assembly includes a mounting base, a pushing cylinder, and a pushing plate. The pushing cylinder is mounted on one side of the housing via the mounting base. The pushing plate is located in the extrusion chamber. The telescopic rod of the pushing cylinder extends into the extrusion chamber and connects with the pushing plate. The bottom of the pushing plate abuts against the top of the filter cloth.

[0007] Furthermore, the pusher plate has a pusher ramp on the side away from the pusher cylinder, and the bottom of the pusher ramp is flush with the bottom of the pusher plate.

[0008] Furthermore, a toothed rake is provided above the pushing inclined block, and the toothed rake is fixedly connected to the pushing plate, with the rake teeth located in front of the pushing inclined block.

[0009] Furthermore, the distance between the lower end of the rake teeth and the top of the filter cloth is 1cm-3cm.

[0010] Furthermore, the extrusion assembly includes an extrusion cylinder, a connecting plate, and an extrusion plate. The extrusion cylinder is fixedly mounted on the top of the housing, the extrusion plate is movably disposed within the extrusion chamber, the connecting plate is fixedly mounted on the top of the extrusion plate, and the telescopic rod of the extrusion cylinder passes through the extrusion chamber and is fixedly connected to the connecting plate.

[0011] Furthermore, a baffle is provided at the discharge port in a pull-out manner.

[0012] Furthermore, the side wall of the box is provided with a placement groove, which is located below the feed hopper. In the initial state, the pusher plate, the pusher block and the toothed rake are all located in the placement groove.

[0013] The beneficial effects of this utility model are:

[0014] This invention enables more efficient solid-liquid separation in coal slime through the setting of a filter grid. The filter cloth can intercept finer solid particles, ensuring that only liquid can pass through the filter cloth and filter grid into the drainage chamber. The push discharge component can push the coal slime compacted on the filter cloth toward the discharge port, ensuring that the coal slime can be discharged stably and efficiently from the discharge port, reducing the residue of coal slime on the filter cloth and improving production efficiency. Attached Figure Description

[0015] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 These are schematic diagrams of structures in some embodiments of this application;

[0017] Figure 2 These are cross-sectional views of some embodiments of this application;

[0018] Figure 3 This is a schematic diagram of the pusher plate, pusher ramp and toothed rake in some embodiments of this application;

[0019] The reference numerals in the attached figures are as follows:

[0020] 1. Housing; 2. Filter grid; 3. Extrusion chamber; 4. Drainage chamber; 5. Feed hopper; 6. Discharge port; 7. Drainage outlet; 8. Filter cloth; 9. Extrusion assembly; 91. Extrusion cylinder; 92. Connecting plate; 93. Extrusion plate; 10. Pushing discharge assembly; 101. Mounting base; 102. Pushing cylinder; 103. Pushing plate; 11. Pushing inclined block; 12. Toothed rake; 13. Baffle; 14. Placement slot. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0022] Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely to illustrate selected embodiments of the application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0023] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0024] In the description of this application, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this application is in use. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this application. In addition, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0025] Furthermore, terms such as "horizontal," "vertical," and "sag" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal relative to "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0026] In the description of this application, it should also be noted that, unless otherwise expressly specified and limited, the terms "set up," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances. Specific implementation examples:

[0028] like Figure 1 and Figure 2 As shown, this application provides a coal slime filter press, including a housing 1. A filter grid 2 is provided inside the housing 1, dividing the housing 1 from top to bottom into a compression chamber 3 and a drainage chamber 4. A feed hopper 5 connected to the compression chamber 3 is provided on one side of the housing 1, and a discharge port 6 and a drain port 7 are provided on the other side of the housing 1. The discharge port 6 is connected to both the compression chamber 3 and the filter grid 2, and the drain port 7 is connected to the drainage chamber 4. A filter cloth 8 is provided on the top of the filter grid 2. The housing 1 is equipped with a device for compressing the coal slime in the compression chamber 3. The extrusion assembly 9 and the push-discharge assembly 10, which pushes the coal sludge compacted on the filter cloth 8 toward the discharge port 6, enable more efficient solid-liquid separation in the coal sludge through the setting of the filter grid 2. The filter cloth 8 can intercept finer solid particles, ensuring that only liquid can pass through the filter cloth 8 and the filter grid 2 into the drainage chamber 4. The push-discharge assembly 10 can push the coal sludge compacted on the filter cloth 8 toward the discharge port 6, ensuring that the coal sludge can be discharged stably and efficiently from the discharge port 6, reducing the residue of coal sludge on the filter cloth 8 and improving production efficiency.

[0029] like Figure 1 and Figure 2 As shown, the discharge assembly 10 includes a mounting base 101, a pushing cylinder 102, and a pushing plate 103. The pushing cylinder 102 is mounted on one side of the housing 1 via the mounting base 101. The pushing plate 103 is located inside the extrusion chamber 3. The telescopic rod of the pushing cylinder 102 extends into the extrusion chamber 3 and connects to the pushing plate 103. The bottom of the pushing plate 103 abuts against the top of the filter cloth 8. Coal slurry enters the extrusion chamber 3 from the feed hopper 5 and is then extruded by the extrusion assembly 9 to compact the coal slurry, causing solid-liquid separation. The extrusion assembly 9 returns to its initial position... After starting the position, the pusher cylinder 102 is activated. The pusher cylinder 102 drives the pusher plate 103 to slide along the surface of the filter cloth 8, scraping the coal sludge off the filter cloth 8 and pushing it towards the discharge port 6. Since the pusher plate 103 is in close contact with the filter cloth 8, it can minimize the residue of coal sludge on the filter cloth 8 and improve the discharge efficiency. In particular, for coal sludge with strong viscosity, it can effectively overcome the adhesion between the coal sludge and the filter cloth 8 and ensure the integrity of the discharge. The filter cloth 8 is fixed to the filter grid 2 with screws, and the surface of the filter cloth 8 is flat.

[0030] like Figure 2 and Figure 3As shown, the pusher plate 103 has a pusher block 11 on the side away from the pusher cylinder 102. The bottom of the pusher block 11 is flush with the bottom of the pusher plate 103. During the pushing process, the presence of the pusher block 11 can disperse the concentrated thrust of the pusher cylinder 102. When the pusher plate 103 pushes the coal slurry, for a large area of ​​coal slurry, the pusher block 11 can first contact the coal slurry and disperse the thrust to the tip of the lower end of the pusher block, which is convenient for pushing the coal slurry and reducing the resistance of the coal slurry to the pusher plate 103.

[0031] like Figure 2 and Figure 3 As shown, a toothed rake 12 is provided above the pusher block 11. The toothed rake 12 is fixedly connected to the pusher plate 103. The rake teeth of the toothed rake 12 are located in front of the pusher block 11. During the pushing process, the rake teeth first contact the coal slime and insert into the coal slime. For some coal slime that has been compacted into hard lumps or agglomerates, the rake teeth can break it into smaller particles, reducing the obstruction of the pushing process by large pieces of coal slime. For example, when the coal slime contains hard lumps formed by mineral aggregation or high viscosity components, the toothed rake 12 can effectively decompose them. When the toothed rake 12 moves in the coal slime, it will form gaps inside the coal slime, which will enhance the fluidity of the coal slime and improve the smoothness of pushing.

[0032] like Figure 2 As shown, the distance between the lower end of the rake teeth of the rake 12 and the top of the filter cloth 8 is 1cm-3cm. This distance ensures that the rake teeth penetrate deep into the coal slurry layer. Since the coal slurry may have different thicknesses after compaction, this distance range can adapt to various coal slurry states, allowing the rake teeth to fully contact the coal slurry and loosen and break it. This distance setting can prevent the rake teeth from getting too close to the filter cloth 8 and causing damage. If the distance is too small, the rake teeth are likely to scrape and tear the filter cloth 8 during movement, affecting the filtration performance and service life of the filter cloth 8. In this embodiment, the distance between the lower end of the rake teeth of the rake 12 and the top of the filter cloth 8 is 2cm, which maintains effective loosening and breaking of the coal slurry while avoiding damage to the filter cloth 8.

[0033] like Figure 1 and Figure 2 As shown, the extrusion assembly 9 includes an extrusion cylinder 91, a connecting plate 92, and an extrusion plate 93. The extrusion cylinder 91 is fixedly mounted on the top of the housing 1, the extrusion plate 93 is movably mounted inside the extrusion chamber 3, and the connecting plate 92 is fixedly mounted on the top of the extrusion plate 93. The telescopic rod of the extrusion cylinder 91 passes through the extrusion chamber 3 and is fixedly connected to the connecting plate 92. The connecting plate 92 is driven by a pressure cylinder, and the connecting plate 92 drives the pressure plate to move downward, thus extruding the coal slime in the extrusion chamber 3.

[0034] like Figure 1 and Figure 2As shown, a baffle 13 is installed at the discharge port 6. During the operation of the coal slime filter press, when the coal slime is not fully processed or is not suitable for discharge, the baffle 13 can be inserted into the discharge port 6 to prevent the coal slime from being discharged. When the coal slime reaches the ideal compression and filtration state, the baffle 13 can be pulled out and the discharge can begin.

[0035] like Figure 2 As shown, the side wall of the box 1 is provided with a placement groove 14, which is located below the feed hopper 5. In the initial state, the pusher plate 103, the pusher block 11 and the toothed rake 12 are all located in the placement groove 14 to prevent interference with the operation of the extrusion assembly 9 and to ensure the smooth extrusion of coal slime.

[0036] The above are merely preferred embodiments of this application and are not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A coal slime filter press, characterized in that: The device includes a housing, inside which a filter grid is provided. The filter grid divides the housing into a compression chamber and a drainage chamber from top to bottom. A feed hopper connected to the compression chamber is provided on one side of the housing, and a discharge port and a drain port are provided on the other side of the housing. The discharge port is connected to the compression chamber and the filter grid, and the drain port is connected to the drainage chamber. A filter cloth is provided on the top of the filter grid. The housing is provided with a compression assembly for compressing the coal slime in the compression chamber and a pusher discharge assembly for pushing the coal slime compacted on the filter cloth toward the discharge port.

2. The coal slime filter press according to claim 1, characterized in that: The material feeding assembly includes a mounting base, a pushing cylinder, and a pushing plate. The pushing cylinder is mounted on one side of the housing via the mounting base. The pushing plate is located in the extrusion chamber. The telescopic rod of the pushing cylinder extends into the extrusion chamber and connects with the pushing plate. The bottom of the pushing plate abuts against the top of the filter cloth.

3. A coal slime filter press according to claim 2, characterized in that: The pusher plate has a pusher ramp on the side away from the pusher cylinder, and the bottom of the pusher ramp is flush with the bottom of the pusher plate.

4. A coal slime filter press according to claim 3, characterized in that: A toothed rake is provided above the pushing inclined block, and the toothed rake is fixedly connected to the pushing plate. The rake teeth are located in front of the pushing inclined block.

5. A coal slime filter press according to claim 4, characterized in that: The distance between the lower end of the rake teeth and the top of the filter cloth is 1cm-3cm.

6. A coal slime filter press according to claim 1, characterized in that: The extrusion assembly includes an extrusion cylinder, a connecting plate, and an extrusion plate. The extrusion cylinder is fixedly mounted on the top of the housing. The extrusion plate is movably disposed within the extrusion chamber. The connecting plate is fixedly mounted on the top of the extrusion plate. The telescopic rod of the extrusion cylinder passes through the extrusion chamber and is fixedly connected to the connecting plate.

7. A coal slime filter press according to claim 1, characterized in that: A baffle is installed at the discharge port.

8. A coal slime filter press according to claim 5, characterized in that: The side wall of the box is provided with a placement groove, which is located below the feed hopper. In the initial state, the pusher plate, the pusher block and the toothed rake are all located in the placement groove.

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