Filter plate of plate-and-frame filter press and plate-and-frame filter press

Abstract

The embodiment of the utility model provides a filter plate of a plate-and-frame filter press and the plate-and-frame filter press, and relates to the technical field of filter presses. The filter plate of the plate-and-frame filter press comprises a filter plate main body, a plate frame body and a filter disc plate, and connecting grooves are formed in the front side and the rear side of the tops of the two sides of the filter plate main body. A pressing plate is pressed to drive a pull rod to move downwards, a second clamping plate is driven to move when the pull rod moves, the second clamping plate extrudes and retracts a spring set, at the moment, the second clamping plate is separated from the surface of a first clamping plate, and then a plate frame body and a filter disc plate can be detached for maintenance or replacement; meanwhile, when filtering work is completed and a hydraulic cylinder drives a movable end to be separated from a filter plate main body, a second spring is reset to drive a sliding ring to move on the surface of a positioning rod, so that a supporting plate drives a propping plate to move, and the propping plate drives a guide wheel and the spaced filter plate main body to assist in bouncing off, so that filtered materials are conveniently discharged, the pressure of a shifting device is reduced, and the filtering efficiency is improved. And the discharging efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of filter presses, in particular to a filter plate of a plate-and-frame filter press and the plate-and-frame filter press. Background Art

[0002] The plate and frame filter press is an indispensable equipment in the rare earth production and purification process. It consists of several filter plate assemblies. Each filter plate assembly includes a filter plate body, two plate frames, and two elastic filter discs. Grooves are provided on both sides of the filter plate body. The two plate frames are respectively located on both sides of the filter plate body. The two elastic filter discs are respectively fixedly installed in the two gaps formed by the filter plate body and the plate frames; each elastic filter disc covers the groove and forms a water filtration cavity with the groove. A water outlet pipe connected to the water filtration cavity is provided under the filter plate body. During operation, the raw material is located between adjacent filter plate assemblies, and the rare earth sulfate solution and filter residue in the raw material are separated by squeezing between the filter plate assemblies.

[0003] In the prior art (Chinese invention patent application with application number 202220191872.0 and patent name being a plate and frame filter press filter frame), the utility model relates to the field of sludge treatment technology, specifically a plate and frame filter press filter frame, comprising a plate body, a channel is opened inside the plate body, a liquid inlet is opened on the surface of the plate body, a filtrate pipe is further provided on the plate body, and the liquid inlet is connected to the filtrate pipe through the channel. The utility model opens a liquid inlet on the surface of the plate and frame filter press filter frame, and connects the liquid inlet with the filtrate pipe through the channel, so that each plate and frame filter press filter frame in the plate and frame filter press squeezes the sludge between each other to perform mud-water separation operation. During the squeezing, the water phase in the sludge is squeezed out and enters the channel through the liquid inlet, and then enters the filtrate pipe from the channel for unified transportation, making the mud-water separation operation more efficient and thorough:

[0004] In actual production, the elastic filter disc is the most easily damaged component and requires high replacement frequency. The filter disc in the existing filter plate assembly is usually fixedly connected to the filter plate body and the plate frame or is sleeved on the plate frame. When replacing the filter disc, the filter plate assembly needs to be completely disassembled to remove the old elastic filter disc. The operation of reinstalling the new elastic filter disc is also very complicated, inconvenient, time-consuming and labor-intensive, and the replacement efficiency is low, which affects the production efficiency of the entire process.

[0005] To this end, a plate and frame filter press filter plate and plate and frame filter press are specially designed, which can quickly remove the filter plate and filter cloth for maintenance, and can quickly realize the connection and disassembly of the filter plate body and the frame. The operation is simple and convenient, easy to maintain, and improves work efficiency. Utility Model Content

[0006] The purpose of the utility model is to provide a plate and frame filter press filter plate and a plate and frame filter press, which can quickly realize the connection and disassembly of the filter plate body and the frame body, are simple and convenient to operate, easy to maintain, and improve work efficiency.

[0007] The utility model provides a filter plate of a plate-and-frame filter press, comprising: a filter plate body, a plate frame body and a filter plate; connection grooves are provided on the front and rear sides of the top of both sides of the filter plate body; a disassembly assembly is provided in the inner cavity of the connection groove; positioning grooves are provided on the front and rear sides of the filter plate body; an auxiliary mechanism is fixedly connected to the inner cavity of the positioning groove;

[0008] The disassembly assembly includes a spring group, the top of the spring group is fixedly connected to a second clamping plate, the top of the second clamping plate is fixedly connected to a pull rod, the top of the pull rod passes through the outside of the connecting groove and is fixedly connected to a pressing plate;

[0009] The auxiliary mechanism includes a positioning rod, the top and bottom of the positioning rod are fixedly connected to the inner wall of the positioning groove, and the top and bottom of the surface of the positioning rod are movably connected to a second spring;

[0010] The top and bottom of the positioning rod surface are both sleeved with sliding rings, the opposite sides of the two sliding rings are fixedly connected to the second spring, the two sides of the two sliding rings are fixedly connected to support plates through rotating shafts, the ends of the two support plates away from the sliding rings are fixedly connected to abutment plates through rotating shafts, and the opposite ends of the two abutment plates are provided with guide wheels.

[0011] In a specific embodiment, the plate frame body is fixedly connected to first clamping plates on both the front and rear sides of one side close to the filter plate body, and slots are provided on both the front and rear sides of the bottom of both sides of the filter plate body.

[0012] In a specific embodiment, the front and rear sides of the bottom of one end of the plate frame body close to the filter plate body are fixedly connected with insertion rods, and elastic parts are provided on the surfaces of the insertion rods.

[0013] In a specific embodiment, the top and bottom of the plate frame body near one end of the filter plate are fixedly connected to the plug-in rod, both sides of the filter plate body are provided with a first opening for use with the plug-in rod, and the top and bottom of the filter plate are provided with a second opening for use with the plug-in rod.

[0014] In a specific embodiment, the front side and the rear side of the second clamping plate are fixedly connected to a sliding sleeve, and the inner cavity of the sliding sleeve is slidably connected to a sliding rod.

[0015] In a specific embodiment, a limiting ring is sleeved on the surface of the pull rod, and the bottom of the limiting ring is fixedly connected to the filter plate body.

[0016] In a specific embodiment, on the other hand, the utility model also includes a plate and frame filter press with a filter plate of a plate and frame filter press, including a frame, the filter plate body is located on the frame, the right side of the frame is connected to a liquid inlet pipe, a controller is provided on the left side of the front side of the frame, the front and rear sides of the frame are provided with slide rails, the surface of the slide rails is slidably connected to a toggle, a hydraulic bracket is provided on the left side of the frame, a hydraulic cylinder is provided on the left side of the hydraulic bracket, a movable end is provided on the right side of the hydraulic cylinder, and a fixed end is provided on the right side of the frame.

[0017] The beneficial effect of the present application is that the pull rod is moved downward by pressing the pressing plate, and the second clamping plate is moved when the pull rod moves, and the second clamping plate squeezes the spring group and retracts. At this time, the second clamping plate is separated from the surface of the first clamping plate, and then the plate frame body and the filter plate can be disassembled for maintenance or replacement;

[0018] At the same time, when the filtration work is completed, the hydraulic cylinder drives the moving end to separate from the filter plate body, and the second spring returns to drive the sliding ring to move on the surface of the positioning rod, so that the support plate drives the back plate to move. At this time, the back plate drives the guide wheel and the spaced filter plate body to assist in springing open, thereby facilitating the discharge of filtered materials, reducing the pressure of the toggle and improving the discharge efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following is a brief introduction to the drawings required for use in the embodiments. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without creative work.

[0020] Figure 1 It is a schematic three-dimensional diagram of the overall structure of an embodiment of the utility model;

[0021] Figure 2 This is a schematic top view of the structure of an embodiment of the utility model;

[0022] Figure 3 This is a three-dimensional schematic diagram of the main structure of the filter plate of an embodiment of the utility model;

[0023] Figure 4 This is a three-dimensional schematic diagram of the expanded structure of the filter plate body according to an embodiment of the present utility model;

[0024] Figure 5 This is a three-dimensional schematic diagram of the auxiliary mechanism structure of an embodiment of the utility model;

[0025] Figure 6 It is a three-dimensional schematic diagram of the disassembly component structure of an embodiment of the present utility model.

[0026] Icons: 1. Filter plate body; 2. Plate frame body; 3. Filter plate; 4. Connecting slot; 5. Disassembly assembly; 501. Spring group; 502. Second clamping plate; 503. Pull rod; 504. Press plate; 505. Slide rod; 506. Limiting ring; 507. Slide sleeve; 6. Positioning slot; 7. Auxiliary mechanism; 701. Positioning rod; 702. Second spring; 703. Slide ring; 704. Support plate; 705. Abutment plate; 706. Guide wheel; 8. First clamping plate; 9. Slot; 10. Insert rod; 11. Elastic member; 12. Connecting rod; 13. Frame; 14. Liquid inlet pipe; 15. Controller; 16. Slide rail; 17. Toggle; 18. Hydraulic bracket; 19. Hydraulic cylinder; 20. Moving end; 21. Fixed end. DETAILED DESCRIPTION

[0027] Since, in actual production, the elastic filter disc is the most easily damaged component and requires frequent replacement, the filter disc in the existing filter plate assembly is usually fixedly connected to the filter plate body and the plate frame or is sleeved on the plate frame. When replacing the filter disc, the filter plate assembly needs to be completely disassembled to remove the old elastic filter disc. The operation of reinstalling the new elastic filter disc is also very complicated, very inconvenient, time-consuming and labor-intensive, and the replacement efficiency is low, which affects the production efficiency of the entire process. The invention can quickly connect and disassemble the filter plate body and the frame, is simple and convenient to operate, easy to maintain, and improves work efficiency. Therefore, after research, the inventor provides a plate and frame filter press filter plate and a plate and frame filter press, which can quickly remove the filter plate and filter cloth when the filter plate needs to be disassembled for maintenance, and the entire replacement process is time-saving and labor-saving, simple to operate, and greatly improves the replacement efficiency.

[0028] The following embodiments of the present invention are described in detail with reference to the accompanying drawings. In the absence of conflict, the following embodiments and features in the embodiments may be combined with each other.

[0029] Please refer to Figures 1 to 6 The embodiment of the utility model provides a plate and frame filter press filter plate and a plate and frame filter press, comprising a filter plate body 1, a plate frame body 2 and a filter plate 3. The plate frame body 2 is fixedly connected to a first clamping plate 8 on both the front and rear sides of the side close to the filter plate body 1. Slots 9 are provided on both the front and rear sides of the bottom of both sides of the filter plate body 1.

[0030] Please refer to Figure 1 、 Figure 2 、 Figure 3 and Figure 4 , the front and rear sides of the plate frame body 2 near the bottom of one end of the filter plate body 1 are fixedly connected with an insertion rod 10, and an elastic member 11 is provided on the surface of the insertion rod 10, and the surface of the insertion rod 10 is movably connected to the inner cavity of the slot 9;

[0031] The material of the elastic member 11 can be set to plastic, so that the plate frame body 2 can be assisted in the installation work by inserting the insertion rod 10 into the inner cavity of the slot 9;

[0032] The top and bottom of the plate frame body 2 near one end of the filter plate 3 are fixedly connected with a plug-in rod 12. Both sides of the filter plate body 1 are provided with a first opening for cooperating with the plug-in rod 12, and the top and bottom of the filter plate 3 are provided with a second opening for cooperating with the plug-in rod 12; the plug-in rod 12 passes through the filter plate 3 and is inserted into the inner cavity of the first opening through the second opening, thereby facilitating the positioning of the filter plate 3.

[0033] Please refer to Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 and Figure 6 , connecting grooves 4 are provided on the front and rear sides of the top of both sides of the filter plate body 1, and a disassembly component 5 is provided in the inner cavity of the connecting groove 4. The disassembly component 5 includes a spring group 501, and the bottoms of the two spring groups 501 are fixedly connected to the connecting groove 4. The top of the spring group 501 is fixedly connected to the second clamping plate 502, and the front and rear sides of the second clamping plate 502 are fixedly connected to the sliding sleeve 507. The inner cavity of the sliding sleeve 507 is slidably connected to the sliding rod 505, and the top and bottom of the sliding rod 505 are fixedly connected to the inner wall of the connecting groove 4;

[0034] By the fixed connection between the sliding rod 505 and the connecting groove 4, the second clamping plate 502 can be moved to drive the sliding sleeve 507 to assist in the movement on its surface, thereby improving the stability of the second clamping plate 502 when moving;

[0035] The top of the second clamping plate 502 is fixedly connected to a pull rod 503, and a limiting ring 506 is sleeved on the surface of the pull rod 503. The bottom of the limiting ring 506 is fixedly connected to the filter plate body 1. The top of the pull rod 503 passes through the outside of the connecting groove 4 and is fixedly connected to the pressing plate 504.

[0036] The fixed connection between the limiting ring 506 and the filter plate body 1 plays the role of assisting the movement of the pull rod 503;

[0037] Specifically, pressing the pressing plate 504 drives the pull rod 503 to move downward, and when the pull rod 503 moves, it drives the second clamping plate 502 to move, and the second clamping plate 502 squeezes the spring group 501 to retract. At this time, the second clamping plate 502 is separated from the surface of the first clamping plate 8, and then the plate frame body 2 and the filter plate 3 can be disassembled for maintenance or replacement.

[0038] Please refer to Figure 1 、 Figure 2 、 Figure 3 and Figure 4The plate frame body 2 is respectively located on both sides of the filter plate body 1, and the two filter plates 3 are respectively squeezed in the gap formed by the filter plate body 1 and the plate frame body 2. The two filter plates 3 cover the filter plate body 1 to form a water filter cavity. A water outlet is provided at the bottom of the filter plate body 1, and positioning grooves 6 are provided on the front and back sides of the filter plate body 1. The inner cavity of the positioning groove 6 is fixedly connected to an auxiliary mechanism 7;

[0039] The auxiliary mechanism 7 includes a positioning rod 701; sliding rings 703 are sleeved on the top and bottom of the surface of the positioning rod 701. The opposite sides of the two sliding rings 703 are fixedly connected to the second spring 702. The two sides of the two sliding rings 703 are fixedly connected to support plates 704 via rotating shafts. The ends of the two support plates 704 away from the sliding rings 703 are fixedly connected to abutment plates 705 via rotating shafts. The opposite ends of the two abutment plates 705 are provided with guide wheels 706.

[0040] The top and bottom of the positioning rod 701 are fixedly connected to the inner wall of the positioning groove 6. The top and bottom of the surface of the positioning rod 701 are movably connected to the second spring 702. The opposite sides of the two second springs 702 are fixedly connected to the inner wall of the positioning groove 6.

[0041] The second spring 702 can assist the sliding ring 703 in returning to its original position. The guide wheel 706 can protect the filter plate bodies 1 on both sides when in contact with the adjacent filter plate bodies 1, while improving the mobility of the stop plate 705.

[0042] Specifically, when the filtering work is completed, the hydraulic cylinder 19 drives the movable end 20 to separate from the filter plate body 1, and the second spring 702 is reset to drive the sliding ring 703 to move on the surface of the positioning rod 701, so that the support plate 704 drives the abutment plate 705 to move. At this time, the abutment plate 705 drives the guide wheel 706 and the spaced filter plate body 1 to assist in springing open, thereby facilitating the discharge of the filtered material, reducing the pressure of the toggle 17, and improving the discharge efficiency.

[0043] Please refer to Figure 1 and Figure 2 , including a frame 13, the filter plate body 1 is located on the frame 13, the right side of the frame 13 is connected to the liquid inlet pipe 14, the left side of the front side of the frame 13 is provided with a controller 15, the controller 15 controls the device, the front and rear sides of the frame 13 are provided with slide rails 16, the surface of the slide rail 16 is slidably connected with a toggle 17, and the two adjacent filter plate bodies 1 are conveniently separated by the slide rail 16 and the toggle 17. A hydraulic bracket 18 is provided on the left side of the frame 13, a hydraulic cylinder 19 is provided on the left side of the hydraulic bracket 18, a movable end 20 is provided on the right side of the hydraulic cylinder 19, and a fixed end 21 is provided on the right side of the frame 13.

[0044] In summary, when the user needs to dismantle the plate frame body 2 and the filter plate 3 for cleaning, the user presses the pressing plate 504 to drive the pull rod 503 to move downward, and when the pull rod 503 moves, it drives the second clamping plate 502 to move, and the second clamping plate 502 squeezes the spring group 501 to retract. At this time, the second clamping plate 502 is separated from the surface of the first clamping plate 8, and then the plate frame body 2 and the filter plate 3 can be dismantled for maintenance or replacement. When the filtration work is completed, the hydraulic cylinder 19 drives the moving end 20 to disengage from the filter plate body 1, and the second spring 702 is reset to drive the sliding ring 703 to move on the surface of the positioning rod 701, so that the support plate 704 drives the push plate 705 to move. At this time, the push plate 705 drives the guide wheel 706 and the spaced filter plate body 1 to assist in springing open, thereby facilitating the discharge of filtered material, reducing the pressure of the toggle 17, and improving the discharge efficiency.

[0045] The above is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, various modifications and variations of the present invention are possible. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the scope of protection of the present invention.

Claims

1. A filter plate for a plate and frame filter press, comprising a filter plate body (1), a plate frame body (2) and a filter plate (3), characterized in that: The filter plate body (1) is provided with connection grooves (4) on both front and rear sides of the top of both sides, and a disassembly assembly (5) is provided in the inner cavity of the connection groove (4). The filter plate body (1) is provided with positioning grooves (6) on both front and rear sides, and an auxiliary mechanism (7) is fixedly connected to the inner cavity of the positioning groove (6); The disassembly assembly (5) includes a spring group (501), the top of the spring group (501) is fixedly connected to a second clamping plate (502), the top of the second clamping plate (502) is fixedly connected to a pull rod (503), and the top of the pull rod (503) passes through the outside of the connecting groove (4) and is fixedly connected to a pressing plate (504); The auxiliary mechanism (7) comprises a positioning rod (701), the top and bottom of the positioning rod (701) are fixedly connected to the inner wall of the positioning groove (6), and the top and bottom of the surface of the positioning rod (701) are movably connected to a second spring (702); The top and bottom of the surface of the positioning rod (701) are sleeved with sliding rings (703), the opposite sides of the two sliding rings (703) are fixedly connected to the second spring (702), the two sides of the two sliding rings (703) are fixedly connected to the support plates (704) via a rotating shaft, the ends of the two support plates (704) away from the sliding rings (703) are fixedly connected to the abutment plates (705) via a rotating shaft, and the opposite ends of the two abutment plates (705) are provided with guide wheels (706).

2. The filter plate of the plate and frame filter press according to claim 1, characterized in that: The plate frame body (2) is fixedly connected to first clamping plates (8) on both the front and rear sides of one side close to the filter plate body (1), and slots (9) are provided on both the front and rear sides of the bottom of both sides of the filter plate body (1).

3. The filter plate of the plate and frame filter press according to claim 1, characterized in that: Insertion rods (10) are fixedly connected to the front and rear sides of the bottom of one end of the plate frame body (2) close to the filter plate body (1), and elastic parts (11) are provided on the surface of the insertion rods (10).

4. The filter plate of the plate and frame filter press according to claim 1, characterized in that: The top and bottom of the plate frame body (2) near one end of the filter plate (3) are fixedly connected to the plug rod (12), both sides of the filter plate body (1) are provided with a first opening for use with the plug rod (12), and the top and bottom of the filter plate (3) are provided with a second opening for use with the plug rod (12).

5. The filter plate of the plate and frame filter press according to claim 1, characterized in that: The front and rear sides of the second clamping plate (502) are both fixedly connected to a sliding sleeve (507), and the inner cavity of the sliding sleeve (507) is slidably connected to a sliding rod (505).

6. The filter plate of the plate and frame filter press according to claim 1, characterized in that: A limiting ring (506) is sleeved on the surface of the pull rod (503), and the bottom of the limiting ring (506) is fixedly connected to the filter plate body (1).

7. A plate and frame filter press comprising the filter plate of any one of claims 1 to 6, characterized in that: The invention comprises a frame (13), wherein the filter plate body (1) is located on the frame (13), the right side of the frame (13) is connected to a liquid inlet pipe (14), a controller (15) is provided on the left side of the front side of the frame (13), the front side and the rear side of the frame (13) are both provided with slide rails (16), the surface of the slide rails (16) is slidably connected to a toggle (17), a hydraulic bracket (18) is provided on the left side of the hydraulic bracket (18), a hydraulic cylinder (19) is provided on the left side of the hydraulic bracket (18), a movable end (20) is provided on the right side of the hydraulic cylinder (19), and a fixed end (21) is provided on the right side of the frame (13).

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