Filter press for improving dewatering rate of fine coal

Abstract

This utility model provides a filter press for improving the dewatering rate of fine-grained clean coal, relating to the technical field of filter presses for improving the dewatering rate of fine-grained clean coal. It includes a filter plate, with a tightening mechanism on the outer side of the filter plate. The tightening mechanism includes a fixing block, a bidirectional threaded rod rotatably connected to the inner wall of the fixing block, a threaded block threaded to the outer surface of the bidirectional threaded rod, a movable block fixedly connected to one end of the threaded block, and a fixing clamp fixedly connected to the top of the movable block. This utility model, by setting a tightening mechanism, allows the filter cloth to be fixedly fixed twice after it is fitted onto the outer surface of the filter press. The first fixing initially tightens the ends of the filter cloth, allowing it to fit snugly against the filter plate. The second fixing further tightens the ends of the filter cloth, making it fit more tightly against the filter plate, preventing loosening and wrinkling during the dewatering of clean coal.

Description

Technical Field

[0001] This utility model relates to the technical field of filter presses for improving the dewatering rate of fine-grained clean coal, and in particular to a filter press for improving the dewatering rate of fine-grained clean coal. Background Technology

[0002] Clean coal, also known as refined coal, refers to high-quality coal that has undergone processing in a coal preparation plant to remove most of the gangue, ash, sulfur, and other impurities from the raw coal, thereby significantly increasing its carbon content and calorific value. It is the final product after coal washing and processing, with stable quality that can meet the needs of specific users.

[0003] Existing clean coal contains moisture after screening, and filter presses are typically used for dewatering. However, existing filter presses have filter cloth fitted onto the outer surface of the filter plates from bottom to top. Because the filter cloth is U-shaped, it needs to be tightened and secured at the top of the filter plate. This is usually done using cable ties, but this method is inconvenient and doesn't allow for further tightening of the fixed filter cloth ends, resulting in insufficient adhesion between the filter cloth and the filter plate. Therefore, existing filter presses for dewatering fine-particle clean coal are inconvenient to use. To address this, we provide a filter press designed to improve the dewatering rate of fine-particle clean coal. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies where the filter cloth cannot be further tightened after being fixed on the filter plate, and to provide a filter press for improving the dewatering rate of fine coal.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a filter press for improving the dewatering rate of fine-grained clean coal, comprising: a filter plate, a tightening mechanism provided on the outer side of the filter plate, the tightening mechanism including a fixed block, a bidirectional threaded rod rotatably connected to the inner wall of the fixed block, a threaded block threadedly connected to the outer surface of the bidirectional threaded rod, a movable block fixedly connected to one end of the threaded block, a fixed clamping plate fixedly connected to the top of the movable block, a movable clamping plate provided on one side of the fixed clamping plate, a vertical plate provided on one side of the movable clamping plate, a bolt threadedly connected to the interior of the vertical plate, and a conical piercing block fixedly connected to the outer surface of the movable clamping plate.

[0006] In a preferred embodiment, the fixed block is fixedly connected to the filter press plate, there are two threaded blocks, the threaded blocks are sleeved inside the fixed block, the threaded blocks are slidably connected to the inner wall of the fixed block, and a slider is sleeved inside the movable block.

[0007] In a preferred embodiment, the slider is slidably connected to the inner wall of the moving block, the slider is fixedly connected to the moving clamp, the upright plate is fixedly connected to the moving block, and the conical piercing block is sleeved inside the fixed clamp.

[0008] In a preferred embodiment, the conical puncture block is slidably connected to the fixed clamp, and the fixed clamp is provided with a cylindrical groove that matches the conical puncture block.

[0009] In a preferred embodiment, a bearing is fitted onto the outer surface of one end of the bidirectional threaded rod, and the bearing is placed inside the fixing block.

[0010] In a preferred embodiment, the bearing is fixedly connected to both the inner wall of the fixed block and the outer surface of the bidirectional threaded rod.

[0011] In a preferred embodiment, one end of the bidirectional threaded rod is provided with an internal hexagonal screw block, which is fixedly connected to the bidirectional threaded rod.

[0012] Compared with the prior art, the advantages and positive effects of this utility model are as follows: This invention, through the setting of a tightening mechanism, allows the filter cloth to be fixed twice after it is sleeved on the outer surface of the filter press. The first fixing will initially tighten the end of the filter cloth, so that the filter cloth can fit against the filter plate. The second fixing will further tighten the end of the filter cloth, so that it fits against the filter plate even more tightly. This will prevent loosening and wrinkling during the dewatering of clean coal. By setting a bidirectional threaded rod, which can drive two threaded blocks when rotating, the two threaded blocks can move simultaneously in opposite directions, so that the initially fixed filter cloth can be further tightened. This makes the fit between the filter cloth and the filter plate even tighter. The setting of a conical piercing block, which can pierce into the filter cloth, prevents the filter cloth from sliding between the fixed clamp and the moving clamp when tightened. Attached Figure Description

[0013] Figure 1 A perspective view of a filter press for improving the dewatering rate of fine coal provided by this utility model.

[0014] Figure 2 This utility model provides a filter press for improving the dewatering rate of fine-grained clean coal. Figure 1 Enlarged view of area A in the middle.

[0015] Figure 3 This utility model provides a schematic diagram of the threaded block installation for a filter press used to improve the dewatering rate of fine coal.

[0016] Figure 4This utility model provides a schematic diagram of the installation of a conical piercing block for a filter press used to improve the dewatering rate of fine coal.

[0017] Figure 5 This utility model provides a schematic diagram of the installation of a fixed clamping plate for a filter press used to improve the dewatering rate of fine coal.

[0018] Legend: 1. Filter press plate; 2. Tightening mechanism; 21. Fixed block; 22. Double-ended threaded rod; 23. Threaded block; 24. Moving block; 25. Fixed clamping plate; 26. Moving clamping plate; 27. Sliding block; 28. Vertical plate; 29. Bolt; 201. Tapered piercing block; 202. Cylindrical groove; 203. Bearing; 204. Socket head cap screw. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] Example 1 like Figures 1-5 As shown, this utility model provides a technical solution: a filter press for improving the dewatering rate of fine-grained clean coal, comprising: a filter plate 1, a tightening mechanism 2 on the outer side of the filter plate 1, the tightening mechanism 2 including a fixed block 21, a bidirectional threaded rod 22 rotatably connected to the inner wall of the fixed block 21, a threaded block 23 threadedly connected to the outer surface of the bidirectional threaded rod 22, a movable block 24 fixedly connected to one end of the threaded block 23, a fixed clamping plate 25 fixedly connected to the top of the movable block 24, a movable clamping plate 26 on one side of the fixed clamping plate 25, a vertical plate 28 on one side of the movable clamping plate 26, a bolt 29 threadedly connected to the inside of the vertical plate 28, and a conical piercing block 201 fixedly connected to the outer surface of the movable clamping plate 26.

[0021] In this embodiment, a bidirectional threaded rod 22 is provided, which can drive two threaded blocks 23 by rotating. As a result, the two threaded blocks 23 can move simultaneously towards each other, allowing the initially fixed filter cloth to be further tightened. This makes the fit between the filter cloth and the filter plate 1 tighter. A fixed clamping plate 25 and a movable clamping plate 26 are provided, and a conical piercing block 201 is fixedly connected to the outer surface of the movable clamping plate 26. The fixed clamping plate 25 has a cylindrical groove 202 that fits into the conical piercing block 201, so that the conical piercing block 201 can be embedded in the cylindrical groove 202. Thus, when the end of the filter cloth is placed between the fixed clamping plate 25 and the movable clamping plate 26, the conical piercing block 201 can pierce into the filter cloth, so that the filter cloth will not slide between the fixed clamping plate 25 and the movable clamping plate 26 when it is tightened.

[0022] Example 2 like Figures 1-5 As shown, the fixed block 21 is fixedly connected to the filter plate 1. There are two threaded blocks 23, which are fitted inside the fixed block 21 and slidably connected to the inner wall of the fixed block 21. A slider 27 is fitted inside the movable block 24 and slidably connected to the inner wall of the movable block 24. The slider 27 is fixedly connected to the movable clamping plate 26. The upright plate 28 is fixedly connected to the movable block 24. A conical piercing block 201 is fitted inside the fixed clamping plate 25. 201 is slidably connected to the fixed clamping plate 25. The fixed clamping plate 25 has a cylindrical groove 202 that matches the conical piercing block 201. A bearing 203 is sleeved on the outer surface of one end of the bidirectional threaded rod 22. The bearing 203 is placed inside the fixed block 21. The bearing 203 is fixedly connected to the inner wall of the fixed block 21 and the outer surface of the bidirectional threaded rod 22. One end of the bidirectional threaded rod 22 is provided with an internal hexagonal screw block 204, which is fixedly connected to the bidirectional threaded rod 22.

[0023] In this embodiment, a slider 27 is provided, and the slider 27 can slide in the guide groove opened inside the movable block 24. Thus, the slider 27 can guide the movable clamping plate 26, so that the movable clamping plate 26 can accurately fit with the fixed clamping plate 25, and then the conical piercing block 201 can fit into the interior of the cylindrical groove 202. At the same time, a vertical plate 28 and a bolt 29 are provided, and the bolt 29 can rotate and move with the cooperation of the vertical plate 28. Thus, the bolt 29 can squeeze the movable clamping plate 26, so that the movable clamping plate 26 and the fixed clamping plate 25 fit more tightly.

[0024] Working principle: like Figures 1-5As shown, in use, the filter cloth can be first fitted onto the outer surface of the filter plate 1 from the bottom, with some sides and top of the filter cloth open. Then, one end of the filter cloth is inserted between the fixed clamping plate 25 and the movable clamping plate 26. With the cooperation of other construction personnel, the filter cloth is initially tightened. The end of the filter cloth is then kept stable. Next, the bolt 29 is rotated, and with the cooperation of the vertical plate 28, the bolt 29 can rotate and move. The bolt 29 can also squeeze the movable clamping plate 26, causing the movable clamping plate 26 to drive the slider 27 to slide inside the movable block 24. Thus, guided by the slider 27, the movable clamping plate 26 can drive the conical piercing block 201 to gradually approach the fixed clamping plate 25 until the conical piercing block 201 pierces the filter cloth. The filter cloth is fitted into the cylindrical groove 202 on the fixed clamping plate 25, and the movable clamping plate 26 is in close contact with the fixed clamping plate 25. Then, the other end of the filter cloth is initially fixed in the same way. After that, an auxiliary tool that matches the internal hexagonal screw block 204 is used to drive the internal hexagonal screw block 204 to rotate. The bidirectional threaded rod 22, with the cooperation of the bearing 203, can drive the two threaded blocks 23 to move simultaneously in opposite directions. This allows the movable block 24 to drive the fixed clamping plate 25 and the movable clamping plate 26 to move simultaneously. As a result, the filter cloth, which is clamped and fixed by the fixed clamping plate 25 and the movable clamping plate 26, is further retracted, making it fit more tightly with the outer surface of the filter plate 1.

[0025] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A filter press for improving the dewatering rate of fine-grained clean coal, characterized in that, include: A filter press plate (1) is provided with a tightening mechanism (2) on the outside of the filter press plate (1). The tightening mechanism (2) includes a fixed block (21). A bidirectional threaded rod (22) is rotatably connected to the inner wall of the fixed block (21). A threaded block (23) is threadedly connected to the outer surface of the bidirectional threaded rod (22). A movable block (24) is fixedly connected to one end of the threaded block (23). A fixed clamping plate (25) is fixedly connected to the top of the movable block (24). A movable clamping plate (26) is provided on one side of the fixed clamping plate (25). A vertical plate (28) is provided on one side of the movable clamping plate (26). A bolt (29) is threadedly connected to the inside of the vertical plate (28). A conical piercing block (201) is fixedly connected to the outer surface of the movable clamping plate (26).

2. A filter press for improving the dewatering rate of fine-grained clean coal according to claim 1, characterized in that: The fixed block (21) is fixedly connected to the filter plate (1). There are two threaded blocks (23). The threaded blocks (23) are sleeved inside the fixed block (21). The threaded blocks (23) are slidably connected to the inner wall of the fixed block (21). The sliding block (27) is sleeved inside the moving block (24).

3. A filter press for improving the dewatering rate of fine-grained clean coal according to claim 2, characterized in that: The slider (27) is slidably connected to the inner wall of the moving block (24), the slider (27) is fixedly connected to the moving clamp (26), the upright plate (28) is fixedly connected to the moving block (24), and the conical piercing block (201) is sleeved inside the fixed clamp (25).

4. A filter press for improving the dewatering rate of fine-grained clean coal according to claim 3, characterized in that: The conical puncture block (201) is slidably connected to the fixed clamping plate (25), and the fixed clamping plate (25) is provided with a cylindrical groove (202) that fits the conical puncture block (201).

5. A filter press for improving the dewatering rate of fine-grained clean coal according to claim 4, characterized in that: A bearing (203) is fitted onto the outer surface of one end of the bidirectional threaded rod (22), and the bearing (203) is placed inside the fixing block (21).

6. A filter press for improving the dewatering rate of fine-grained clean coal according to claim 5, characterized in that: The bearing (203) is fixedly connected to the inner wall of the fixing block (21) and the outer surface of the bidirectional threaded rod (22).

7. A filter press for improving the dewatering rate of fine-grained clean coal according to claim 6, characterized in that: One end of the bidirectional threaded rod (22) is provided with an internal hexagonal screw block (204), which is fixedly connected to the bidirectional threaded rod (22).

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