Plate-and-frame filter pressing device

Abstract

The utility model belongs to the technical field of plate-and-frame filter presses, and particularly relates to a plate-and-frame filter pressing device which comprises a base, two fixing plates are fixedly connected to the base, limiting sliding grooves are formed in the two fixing plates, two lifting plates are movably installed on the two fixing plates in a matched mode, the two ends of each lifting plate penetrate through the corresponding limiting sliding grooves, four sleeves are fixedly connected to the base, and a first spring is fixedly connected to the inner wall of the bottom end of each sleeve. The top end of the first spring is fixedly connected with a movable rod; when sludge is discharged, adhesive force between a sludge cake and the filter plates and between the sludge cake and the plate frame can be effectively destroyed under the action of up-down reciprocating oscillation, so that the sludge cakes on the plurality of filter plates are gradually loosened and finally fall off without waiting for one-by-one treatment of single filter plates, the sludge discharging time is greatly shortened, and the falling efficiency of the sludge cakes is greatly improved; the filter plate does not need to move frequently, so that the phenomenon that equipment is abraded or even damaged due to frequent movement of the filter plate is avoided, and the service life of the equipment is prolonged.

Description

Technical Field

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

[0002] The plate and frame filter press is a commonly used solid-liquid separation equipment. It consists of a group of filter chambers composed of alternately arranged filter plates and filter frames. Through the action of pressure, the solid particles in the suspension are trapped in the filter chamber to form a filter cake, while the filtrate is discharged through the filter cloth, thereby achieving the purpose of solid-liquid separation.

[0003] A Chinese patent with publication number CN116459571A discloses a plate and frame filter press, including a frame, the inner side of the frame is symmetrically integrally formed and connected with a guide rail, the guide rail is provided with a guide groove, the power component is connected to the frame, the filter pressing component includes multiple groups of plate frames that follow the movement of the driving cylinder, the outer side of the plate frame is connected with an extrusion plate, the left and right sides of the plate frame are integrally formed and connected with a connecting seat, and the bottom of the connecting seat is rotatably connected with two groups of guide wheels. When the utility model is in use, the guide wheel and the guide groove cooperate to form a guide structure. When the power component supplies energy, the friction between the plate frame and the frame during the movement is reduced, the loss of kinetic energy is reduced, and the equipment damage caused by friction is reduced. In addition, after the filter press is filtered, the liquid guide plate is deformed into an arc structure under force, thereby preventing the water squeezed out after the filter press is released from entering the filter cloth and filter residue again.

[0004] The above-mentioned plate and frame filter press still has some problems when in use. When the plate and frame filter press is discharging mud, it is necessary to move one filter plate at a time to make the mud cake between the two filter plates fall. Since the filter plates need to be moved in turn to discharge the mud, this process is relatively cumbersome and time-consuming, which will significantly reduce work efficiency. Frequent movement of the filter plates may accelerate the wear of the equipment, especially the sealing surfaces and sliding parts between the filter plates, thereby shortening the service life of the equipment and increasing maintenance costs. Therefore, a plate and frame filter press device is proposed to address the above problems. Utility Model Content

[0005] In order to make up for the deficiencies of the prior art and solve the problems raised in the above background technology, the utility model proposes a plate and frame filter press device.

[0006] Material toggling mechanism, its both sides respectively have a cylinder pressure, and the cylinder pressure bar connects swing arm, and the swing arm end face has hook portion, and a bar passes position between the end of two swing arms and the hook portion. When discharging mud, the pneumatic cylinder is first operated to make the pneumatic rod drive the two pressing plates to reset and move them away from the movable filter plate. Under the rebound force of the second spring, the movable filter plate is separated from the movable plate frame. After the movable filter plate and the movable plate frame are separated, the motor is started to make the rotating rod drive the cam to rotate. Under the cooperation of the first spring and the movable rod, the lifting plate is moved up and down along the limiting slide groove, thereby forcing the movable filter plate and the movable plate frame to move up and down as well. This up and down reciprocating oscillation can effectively destroy the adhesion between the mud cake and the filter plate and plate frame, so that the mud cakes on multiple filter plates are gradually loosened and eventually fall off. There is no need to wait for individual filter plates to be processed one by one, thereby greatly shortening the mud discharge time and greatly improving the mud cake shedding efficiency. The filter plates do not need to be moved frequently, avoiding the phenomenon of accelerated equipment wear or even damage due to frequent movement of the filter plates, thereby extending the service life of the equipment.

[0007] Preferably, rectangular limit grooves are provided on the two lifting plates, and an L-shaped connecting plate is fixed in the middle position of the two rectangular limit grooves, a fixed filter plate is fixedly connected between the two L-shaped connecting plates, and a plurality of movable limit blocks are provided in the two rectangular limit grooves, a second spring is fixedly connected between every two movable limit blocks, and a connecting seat is fixedly connected to the top side of each movable limit block, a movable filter plate is cooperated with and installed between the two connecting seats, and a movable plate frame is cooperated with and installed between the other two connecting seats, and multiple movable filter plates and movable plate frames are staggered. When using the device, by setting the rectangular limit grooves and the movable limit blocks, the movable filter plate and the movable plate frame can be stably moved, thereby improving the stability of their movement.

[0008] Preferably, pneumatic cylinders are installed on both fixed plates, and the active ends of the two pneumatic cylinders are equipped with pneumatic rods. The other end of the pneumatic rod is fixedly connected to a clamping plate. When the device is used, the pneumatic cylinders are started to drive the pneumatic rods to move the clamping plate, so that multiple movable filter plates can be pressed tightly against the movable plate frame, and the second spring is compressed. In this process, the gap between the movable filter plate and the movable plate frame is eliminated, forming closed filter chambers. These filter chambers will be used for subsequent solid-liquid separation processes.

[0009] Preferably, a collecting trough is provided on the top side of the base, and the collecting trough is provided directly below the multiple movable filter plates and the movable plate frame. When the device is used, the collecting trough is provided to facilitate the collection of the fallen mud cake.

[0010] The utility model is beneficial in that:

[0011] When the utility model is discharging mud, the pneumatic cylinder is first operated to make the pneumatic rod drive the two pressing plates to reset and move them away from the movable filter plate. Under the rebound force of the second spring, the movable filter plate is separated from the movable plate frame. After the movable filter plate and the movable plate frame are separated, the motor is started to make the rotating rod drive the cam to rotate. Under the cooperation of the first spring and the movable rod, the lifting plate is moved up and down reciprocatingly along the limiting slide groove, thereby forcing the movable filter plate and the movable plate frame to move up and down as well. This up and down reciprocating oscillation can effectively destroy the adhesion between the mud cake and the filter plate and the plate frame, so that the mud cakes on multiple filter plates are gradually loosened and eventually fall off, and there is no need to wait for individual filter plates to be processed one by one, thereby greatly shortening the mud discharge time and greatly improving the mud cake shedding efficiency. In addition, the filter plates do not need to be moved frequently, which avoids the phenomenon of accelerated wear or even damage of the equipment due to frequent movement of the filter plates, thereby extending the service life of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0013] Figure 1 Schematic diagram of the overall three-dimensional structure of the device;

[0014] Figure 2 It is a schematic diagram of the local three-dimensional structure of the device;

[0015] Figure 3 Schematic diagram of the three-dimensional structure of the oscillation mechanism;

[0016] Figure 4 It is a schematic diagram of the cross-sectional three-dimensional structure of the sleeve;

[0017] Figure 5 It is a schematic diagram of the three-dimensional structure of the clamping mechanism.

[0018] In the figure: 1. Base; 2. Fixed plate; 3. Limiting slide; 4. Lifting plate; 5. Sleeve; 6. First spring; 7. Movable rod; 8. Vertical plate; 9. Motor; 10. Rotating rod; 11. Cam; 12. Rectangular limiting groove; 13. L-shaped connecting plate; 14. Fixed filter plate; 15. Movable limiting block; 16. Second spring; 17. Connecting seat; 18. Movable filter plate; 19. Movable plate frame; 20. Pneumatic cylinder; 21. Pneumatic rod; 22. Pressing plate; 23. Collecting trough. DETAILED DESCRIPTION

[0019] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0020] See also Figure 1-4As shown, a plate and frame filter press device includes a base 1; two fixed plates 2 are fixed on the base 1, and limited sliding grooves 3 are provided on the two fixed plates 2. Two lifting plates 4 are movably installed on the two fixed plates 2, and the two ends of the lifting plates 4 pass through the limited sliding grooves 3. Four sleeves 5 are fixed on the base 1, and a first spring 6 is fixed on the inner wall of the bottom end of each sleeve 5, and a movable rod 7 is fixed on the top of the first spring 6. The top of the movable rod 7 is fixed on the bottom side wall of the lifting plate 4. Four vertical plates 8 are installed on the base 1, and a rotating rod 10 is rotatably installed between the two vertical plates 8 on the same side. Cams 11 are provided at both ends, and the outer surface of the cam 11 contacts the bottom side wall of the lifting plate 4. Motors 9 are installed on the two vertical plates 8 at the same end. The output end of the motor 9 is connected to one end of the rotating rod 10. Rectangular limiting grooves 12 are provided on the two lifting plates 4. L-shaped connecting plates 13 are fixed in the middle of the two rectangular limiting grooves 12. A fixed filter plate 14 is fixed between the two L-shaped connecting plates 13. A plurality of movable limiting blocks 15 are provided in the two rectangular limiting grooves 12. A second spring 16 is fixed between each two movable limiting blocks 15. The top side of each movable limiting block 15 is fixed. There is a connecting seat 17, a movable filter plate 18 is installed between the two connecting seats 17, and a movable plate frame 19 is installed between the other two connecting seats 17, and multiple movable filter plates 18 and movable plate frames 19 are staggered. After the filtration is completed, when the mud is discharged, the pneumatic cylinder 20 is first operated to make the pneumatic rod 21 drive the two pressing plates 22 to reset and keep them away from the movable filter plate 18. Under the rebound force of the second spring 16, the movable filter plate 18 is separated from the movable plate frame 19. After the movable filter plate 18 and the movable plate frame 19 are separated, the motor 9 is started to make the rotating rod 10 drive the cam 11 to rotate. With the cooperation of the first spring 6 and the movable rod 7, the lifting plate 4 moves up and down reciprocatingly along the limiting slide groove 3, thereby forcing the movable filter plate 18 and the movable plate frame 19 to move up and down as well. This up and down reciprocating oscillation can effectively destroy the adhesion between the mud cake and the filter plate and the plate frame, so that the mud cakes on multiple filter plates gradually loosen and eventually fall off, without having to wait for individual filter plates to be processed one by one, thereby greatly shortening the mud discharge time and greatly improving the mud cake shedding efficiency. The filter plates do not need to be moved frequently, avoiding the phenomenon of accelerated equipment wear or even damage due to frequent movement of the filter plates, thereby extending the service life of the equipment.

[0021] See also Figure 5As shown, pneumatic cylinders 20 are installed on the two fixed plates 2, and the active ends of the two pneumatic cylinders 20 are equipped with pneumatic rods 21, and the other ends of the pneumatic rods 21 are fixedly connected to the clamping plate 22; when using the device, the pneumatic cylinders 20 are started, so that the pneumatic rods 21 drive the clamping plate 22 to move, so that the multiple movable filter plates 18 can be pressed tightly against the movable plate frame 19, and the second spring 16 is compressed. In this process, the gap between the movable filter plate 18 and the movable plate frame 19 is eliminated, forming closed filter chambers, which will be used for the subsequent solid-liquid separation process.

[0022] See also Figure 1 As shown, a collecting trough 23 is provided on the top side of the base 1, and the collecting trough 23 is provided directly below the multiple movable filter plates 18 and the movable plate frame 19; when the device is used, the collecting trough 23 is provided to facilitate the collection of the fallen mud cake.

[0023] Working principle: Since the above-mentioned plate and frame filter press still has some problems when in use, when the plate and frame filter press is discharging mud, it needs to move one filter plate at a time to make the mud cake between the two filter plates fall. Since the filter plates need to be moved in turn to discharge mud, this process is relatively cumbersome and time-consuming, which will significantly reduce work efficiency, and frequent movement of the filter plates may accelerate the wear of the equipment, especially the sealing surfaces and sliding parts between the filter plates, thereby shortening the service life of the equipment and increasing maintenance costs; therefore, a plate and frame filter press device is proposed to address the above problems; after the filtration is completed, when discharging mud, the pneumatic cylinder 20 is first operated to make the pneumatic rod 21 drive the two pressing plates 22 to reset, so that it is away from the movable filter plate 18, and under the rebound force of the second spring 16, the movable filter plate 18 is separated from the movable plate frame 19. After the movable filter plate 18 and the movable plate frame 19 are dispersed, the motor 9 is started to make the rotating rod 10 drive the cam 11 to rotate. Under the cooperation of the first spring 6 and the movable rod 7, the lifting plate 4 is moved up and down along the limiting slide groove 3, thereby forcing the movable filter plate 18 and the movable plate frame 19 to move up and down as well. This up and down reciprocating oscillation can effectively destroy the adhesion between the mud cake and the filter plate and the plate frame, so that the mud cakes on multiple filter plates are gradually loosened and eventually fall off, without waiting for individual filter plates to be processed one by one, thereby greatly shortening the mud discharge time and greatly improving the mud cake shedding efficiency. The filter plate does not need to be moved frequently, avoiding the phenomenon of accelerated equipment wear or even damage due to frequent movement of the filter plate, thereby extending the service life of the equipment.

[0024] Throughout this specification, references to terms such as "one embodiment," "example," or "specific example" indicate that a specific feature, structure, material, or characteristic described in conjunction with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of these terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0025] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention, and such changes and improvements fall within the scope of the present invention as claimed.

Claims

1. A plate and frame filter press device, characterized in that: The invention comprises a base (1); two fixed plates (2) are fixedly connected to the base (1); the two fixed plates (2) are both provided with a limited sliding groove (3); the two fixed plates (2) are movably mounted with two lifting plates (4), and the two ends of the lifting plates (4) pass through the limited sliding groove (3); four sleeves (5) are fixedly connected to the base (1); the inner wall of the bottom end of each sleeve (5) is fixedly connected to a first spring (6), and the top end of the first spring (6) is fixedly connected to a movable rod (7). The top end of the movable rod (7) is fixedly connected to the bottom side wall of the lifting plate (4). Four vertical plates (8) are installed on the base (1). A rotating rod (10) is rotatably installed between the two vertical plates (8) on the same side. Both ends of each rotating rod (10) are equipped with cams (11), and the outer surface of the cam (11) is in contact with the bottom side wall of the lifting plate (4). The two vertical plates (8) at the same end are both equipped with motors (9), and the output end of the motor (9) is connected to one end of the rotating rod (10).

2. The plate-and-frame filter press device according to claim 1, characterized in that: The two lifting plates (4) are both provided with rectangular limiting grooves (12), an L-shaped connecting plate (13) is fixed at the middle position of the two rectangular limiting grooves (12), and a fixed filter plate (14) is fixed between the two L-shaped connecting plates (13).

3. The plate-and-frame filter press device according to claim 2, characterized in that: A plurality of movable limiting blocks (15) are provided in the two rectangular limiting grooves (12), a second spring (16) is fixedly connected between every two movable limiting blocks (15), and a connecting seat (17) is fixedly connected to the top side of each movable limiting block (15).

4. The plate and frame filter press device according to claim 3, characterized in that: A movable filter plate (18) is installed between two connecting seats (17), and a movable plate frame (19) is installed between the other two connecting seats (17), and multiple movable filter plates (18) and movable plate frames (19) are staggered.

5. The plate-and-frame filter press device according to claim 1, characterized in that: Pneumatic cylinders (20) are installed on the two fixed plates (2), and the active ends of the two pneumatic cylinders (20) are equipped with pneumatic rods (21), and the other ends of the pneumatic rods (21) are fixedly connected to a pressing plate (22).

6. The plate-and-frame filter press device according to claim 1, characterized in that: A collecting trough (23) is provided on the top side of the base (1), and the collecting trough (23) is arranged directly below the plurality of movable filter plates (18) and the movable plate frame (19).

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