Upper feeding type filter plate of filter press

Abstract

The utility model relates to the technical field of filter press filter plates, in particular to an upper feeding type filter press filter plate which comprises a filter element plate, filter pressing grooves are formed in the two side faces of the filter element plate, a feeding hole is formed in the middle of a top plate, a plurality of liquid outlet water grooves are formed in the positions, close to the four corners, of the inner walls of the filter pressing grooves, and a cavity is further formed in the middle of the filter element plate. According to the upper feeding type filter plate of the filter press, a plurality of liquid outlet water tanks are arranged at the four corners of the filter pressing tank in a matched mode, the internal filtering speed is increased, a feeding hole is formed in the top in a matched mode, materials needing to be squeezed and filtered can be added from the top, and the materials are guided to continuously and stably enter the filter pressing tank under the cooperation of a guide groove; under the cooperation of the squeezing connector and the cavity, high-pressure gas or high-pressure water flow can be introduced into the cavity, the influence of blockage of the liquid outlet water tank is reduced, and under the cooperation of the annular groove and the clamping ring, two adjacent filter element plates are tightly attached, and the influence of a large gap on squeezing and filtering cooperation is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of filter plates for filter presses, in particular to a filter plate for a top-feed type filter press. Background Art

[0002] The filter press was the first machine used in chemical dehydration. In the filter press, the mineral sludge is squeezed, filtered and dehydrated through multiple filter plates.

[0003] The utility model with the announcement number CN208583037U discloses a filter plate for a high-energy filter press, wherein the filter plate includes a feed filter plate and a liquid collecting filter plate. A feed conduit is provided on the inner side of the ear holes of the feed filter plate and the liquid collecting filter plate. A through hole is provided on the feed conduit. A sealing conduit is provided between the feed filter plate and the liquid collecting filter plate. The sealing conduit is communicated with the feed conduit, and the tube wall of the sealing conduit is clamped on the feed filter plate and the liquid collecting filter plate.

[0004] The above technical solution, by arranging feed conduits on the inner sides of the ear holes of the feed filter plate and the liquid collection filter plate, and providing through holes on the feed conduits, can reduce the resistance caused by the change of the channel cross-section during the slurry feeding, backwashing and liquid collection discharge processes, and the strong impact of the sealing ring caused by the poor material flow, resulting in leakage. The above technical solution, by arranging a sealing conduit between the feed filter plate and the liquid collection filter plate, the sealing conduit is communicated with the feed conduit, replacing the traditional O-ring line sealing method, changing the sealing effect to a reliable cylindrical surface seal, increasing the sealing area, and making the sealing more reliable, thereby greatly saving costs. However, the feeding method of the filter plate is usually side feeding or middle feeding, which may cause uneven distribution of the filter cake, fail to fully utilize the space of the filter plate, and the filter plates are not tightly sealed, resulting in solution leakage from the connection between the two filter plates. Utility Model Content

[0005] The purpose of the utility model is to provide a filter plate for a top-feed filter press to solve the problems raised in the above background technology.

[0006] To achieve the above objectives, the present invention provides the following technical solutions:

[0007] The filter plate of the top-feed type filter press includes a filter element plate, both sides of the filter element plate are provided with filter press grooves, the filter press grooves are provided with several protrusions, the filter press grooves are also provided with several support points in the middle, a top plate is provided in the middle of the top of the filter element plate, a feed hole is provided in the middle of the top plate, a guide groove connected to the filter press groove is provided at the end of the feed hole, several liquid outlet grooves are provided on the inner wall of the filter press groove near the four corners, a cavity is also provided in the middle of the filter element plate, the cavity is connected to the corresponding liquid outlet grooves, and air inlet holes connected to the cavity are provided near the four corners of the filter element plate.

[0008] Preferably, both sides of the filter element plate are provided with a limit plate near the top, and the limit plates are provided with pulleys, and the pulleys are rotatably connected to the limit plates.

[0009] In the utility model, a limit plate with a pulley is provided, and the limit plate is engaged with the support rod on the filter press to achieve stable combined installation of the filter element plate and the filter press, and with the cooperation of the pulley, it helps the limit plate to slide on the horizontal plane.

[0010] Preferably, a pressing joint communicating with the cavity is provided on the left end of the filter core plate near the bottom, and the pressing joint is bonded and fixed to the filter core plate.

[0011] In the utility model, with the cooperation of the pressing joint, it is helpful to connect the external pipeline through the pressing joint to carry out corresponding high-pressure air delivery or high-pressure water delivery cooperation. The high-pressure gas or high-pressure water enters the filter press tank through the liquid outlet trough, and then the liquid outlet trough is sealed and cleaned.

[0012] Preferably, the top plate is trapezoidal in shape, the bottom of the top plate is welded and fixed to the top of the filter element plate, and the depth of the guide groove is adapted to the depth of the filter press tank.

[0013] In the utility model, the cooperation of the feed hole helps to add external materials from the feed hole, and the cooperation of the guide groove enables the addition of materials from the upper middle position, and under the action of gravity, the materials slide down in sequence and are evenly arranged in the filter press tank.

[0014] Preferably, the protrusions are distributed in a matrix, the bottoms of the protrusions are all bonded and fixed to the filter core plate, the support points are distributed at equal intervals, and the heights of the support points are adapted to the depth of the inner wall of the filter press tank.

[0015] In the utility model, with the cooperation of multiple protrusions, the fulcrum points are increased, which helps to support the filtered filter residue. With the cooperation of multiple protrusions, the structural stability of the filter element plate is increased. With the cooperation of multiple support points, the gap between two adjacent filter element plates is increased to stabilize the support and reduce the impact of deformation caused by extrusion.

[0016] Preferably, the liquid outlet troughs are distributed at equal intervals, and the liquid outlet troughs are connected to the filter press tank and the cavity.

[0017] In the utility model, a plurality of liquid outlet troughs are provided at the four corners of the filter press, so that uniform filtration and drainage at the four corners are achieved, thereby increasing the filtration speed.

[0018] Preferably, an annular groove is provided on the front end surface of the filter element plate near the edge, and a clamping ring is provided on the rear end surface of the filter element plate corresponding to the annular groove. The clamping ring is bonded and fixed to the filter element plate, and the width of the outer wall of the clamping ring is adapted to the width of the inner wall of the annular groove.

[0019] In the utility model, the two adjacent filter core plates are tightly fitted together, and the clamping ring is plugged into the annular groove, which increases the stability and rapid docking installation between the adjacent filter core plates and reduces the impact of gap leakage.

[0020] Compared with the prior art, the beneficial effects of the present invention are:

[0021] 1. The utility model accelerates the internal filtration speed by coordinating multiple liquid outlet troughs at the four corners of the filter press tank. The feed hole on the top helps to add the material that needs to be squeezed and filtered from the top, and with the cooperation of the guide groove, guides the material to enter the filter press tank continuously and stably. With the cooperation of the squeezing joint and the cavity, it helps to pass high-pressure gas or high-pressure water into the cavity, reducing the impact of clogging of the liquid outlet trough. With the cooperation of the annular groove and the clamping ring, the two adjacent filter core plates are tightly fitted, reducing the impact of large gaps on squeezing and filtration.

[0022] 2. The utility model provides a limit plate with a pulley, which helps the filter element plate to fit with the support rod on the filter press, making it convenient and quick to combine and install. The pulley and the support rod slide together to increase the flexibility of movement, making it easier to separate the filter element plate and clean the filter residue. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic diagram of the splicing combination structure of the utility model;

[0024] Figure 2 This is a front view schematic diagram of the filter element plate of the present invention;

[0025] Figure 3 This is a rear view schematic diagram of the filter element plate of the present invention;

[0026] Figure 4 This is a schematic diagram of the cross-sectional structure of the filter element plate of the present invention.

[0027] The meaning of each number in the figure is:

[0028] 1. Filter plate; 10. Filter press tank; 100. Protrusion; 101. Liquid outlet trough; 11. Support point; 12. Air inlet; 13. Annular groove; 14. Snap ring; 15. Cavity;

[0029] 2. Top plate; 20. Feed hole; 21. Guide groove;

[0030] 3. Limit plate;

[0031] 4. Pressing joint. DETAILED DESCRIPTION

[0032] The following will be combined with the 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.

[0033] See also Figures 1-4 , this embodiment provides a technical solution:

[0034] The filter plate of the top-feed filter press comprises a filter core plate 1 , and limit plates 3 are provided on both sides of the filter core plate 1 near the top. The limit plates 3 are provided with pulleys, and the pulleys are rotatably connected to the limit plates 3 .

[0035] In the present invention, a limit plate 3 with a pulley is provided, and the limit plate 3 is engaged with the support rod on the filter press to achieve stable combined installation of the filter element plate 1 and the filter press, and with the cooperation of the pulley, it helps the limit plate 3 to slide on the horizontal plane.

[0036] Furthermore, filter press tanks 10 are provided on both side surfaces of the filter element plate 1, and a number of protrusions 100 are provided on the filter press tank 10. A number of support points 11 are also provided in the middle of the filter press tank 10. The protrusions 100 are distributed in a matrix, and the bottoms of the protrusions 100 are bonded and fixed to the filter element plate 1. The support points 11 are distributed at equal intervals, and the height of the support points 11 is adapted to the depth of the inner wall of the filter press tank 10.

[0037] In the present invention, with the cooperation of multiple protrusions 100, the fulcrum points are increased, which helps to support the filtered residue. With the cooperation of multiple protrusions 100, the structural stability of the filter element plate 1 is increased. With the cooperation of multiple support points 11, the gap between two adjacent filter element plates 1 is increased to stabilize the support and reduce the deformation caused by extrusion.

[0038] Specifically, a top plate 2 is provided in the middle of the top of the filter element plate 1, a feed hole 20 is opened in the middle of the top plate 2, and a guide groove 21 connected to the filter press tank 10 is opened at the end of the feed hole 20. The top plate 2 is trapezoidal in shape, and the bottom of the top plate 2 is welded and fixed to the top of the filter element plate 1. The depth of the guide groove 21 is adapted to the depth of the filter press tank 10.

[0039] In the present invention, the cooperation of the feed hole 20 helps to add external materials from the feed hole 20, and with the cooperation of the guide groove 21, the materials are added from the upper middle position, and slide down in sequence under the action of gravity and are evenly arranged in the filter press tank 10.

[0040] It should be noted that several liquid outlet troughs 101 are provided on the inner wall of the filter press tank 10 near the four corners, and a cavity 15 is also provided in the middle of the filter element plate 1. The cavity 15 is interconnected with the corresponding liquid outlet troughs 101. The liquid outlet troughs 101 are distributed at equal intervals, and the liquid outlet troughs 101 connect the filter press tank 10 and the cavity 15.

[0041] In the present invention, a plurality of liquid outlet troughs 101 are provided at the four corners of the filter press 10, so as to achieve uniform filtration and drainage coordination at the four corners and increase the filtration speed.

[0042] Specifically, air inlet holes 12 communicating with the cavity 15 are formed near the four corners of the filter element plate 1 .

[0043] Among them, the cooperation of the four air inlet holes 12 helps to discharge the water after the material is squeezed from the corresponding air inlet holes 12, and the gas or air in the cavity 15 is discharged from the air inlet holes 12, thereby accelerating the speed of squeezing and filtration.

[0044] Secondly, a pressing joint 4 communicating with the cavity 15 is provided on the left end of the filter core plate 1 near the bottom, and the pressing joint 4 is bonded and fixed to the filter core plate 1 .

[0045] In the present invention, with the cooperation of the pressing joint 4, it is helpful to connect the external pipeline through the pressing joint 4 to carry out corresponding high-pressure air delivery or high-pressure water delivery cooperation. The high-pressure gas or high-pressure water enters the filter press tank 10 through the liquid outlet trough 101, and then the liquid outlet trough 101 is sealed and cleaned.

[0046] It is worth mentioning that the liquid outlet troughs 101 are distributed at equal intervals, and the liquid outlet troughs 101 connect the filter press tank 10 and the cavity 15 .

[0047] In the present invention, a plurality of liquid outlet troughs 101 are provided at the four corners of the filter press 10, so as to achieve uniform filtration and drainage coordination at the four corners and increase the filtration speed.

[0048] When using the filter plate of the top-feed filter press of this embodiment, the user first connects the multiple protrusions 100 with the filter press tank 10 on the filter element plate 1, and installs the multiple support points 11 in the middle of the filter press tank 10. Multiple liquid outlet troughs 101 are opened at the four corners of the filter press tank 10 and communicate with the interior of the cavity 15. Then, the air inlet holes 12 are respectively communicated with the corresponding cavities 15. The pressing joint 4 with the sealing head is installed on the side wall of the filter element plate 1, and the pressing joint 4 is communicated with the interior of the cavity 15. The top plate 2 with the feed hole 20 is connected to the top of the filter element plate 1, and the feed hole 20 is communicated with the interior of the filter press tank 10 through the guide groove 21. Then, the limit plate 3 with the pulley is fixed to the filter element plate 1 by screws, and the clamping ring 14 is fixed to the filter element plate 1 by adhesive.

[0049] The filter element plate 1 is installed on the two support rods on the filter press through the limit plate 3, and the pulley slides with the support rod. When two adjacent filter element plates 1 need to be tightly fitted and spliced, the clamping ring 14 on one filter element plate 1 is plugged into the annular groove 13 on the other filter element plate 1, which increases the stable combination installation between the two adjacent filter element plates 1 and reduces the impact of gap leakage on squeezing and filtration. External materials are added to the filter element plate 1 from the feed hole 20 through the conveying pipe. With the cooperation of the guide groove 21, the materials are sent from top to bottom into the filter press tank 10. With the cooperation of the protrusion 100, it is convenient for the materials to be evenly filled in the filter press Trough 10, with the cooperation of the liquid outlet trough 101, the water in the mixture passes through the liquid outlet trough 101 into the cavity 15, and is finally discharged from the air inlet 12. When the liquid outlet trough 101 needs to be cleaned, high-pressure water or high-pressure air is introduced into the air inlet 12 to clean the liquid outlet trough 101, reduce the impact of blockage, and quickly perform cleaning cooperation. With the cooperation of the pressing joint 4, it is connected to the external pipeline to perform air extraction, squeezing and filtering water cooperation to accelerate the squeezing and filtration speed. The overall combination is easy to install, and the feed enters from the middle position of the top of the filter element plate 1. The filter cake is evenly distributed, and the space of the filter element plate 1 is fully utilized.

Claims

1. A filter plate of a top-feed filter press, comprising a filter element plate (1), characterized in that: The filter element plate (1) is provided with a filter press tank (10) on both sides, and a plurality of protrusions (100) are provided on the filter press tank (10). The filter press tank (10) is also provided with a plurality of support points (11) in the middle. A top plate (2) is provided in the middle of the top of the filter element plate (1), and a feed hole (20) is provided in the middle of the top plate (2). A guide groove (21) connected to the filter press tank (10) is provided at the end of the feed hole (20). A plurality of liquid outlet troughs (101) are provided on the inner wall of the filter press tank (10) near the four corners. A cavity (15) is also provided in the middle of the filter element plate (1), and the cavity (15) is connected to the corresponding liquid outlet trough (101). An air inlet (12) connected to the cavity (15) is provided near the four corners of the filter element plate (1).

2. The filter plate of the top-feed filter press according to claim 1, characterized in that: Limiting plates (3) are provided on both sides of the filter element plate (1) near the top, and pulleys are provided on the limiting plates (3), and the pulleys are rotatably connected to the limiting plates (3).

3. The filter plate of the top-feed filter press according to claim 1, characterized in that: A pressing joint (4) communicating with the cavity (15) is provided on the left end of the filter core plate (1) near the bottom, and the pressing joint (4) is bonded and fixed to the filter core plate (1).

4. The filter plate of the top-feed filter press according to claim 1, characterized in that: The top plate (2) is trapezoidal in shape, the bottom of the top plate (2) is welded and fixed to the top of the filter core plate (1), and the depth of the guide groove (21) is adapted to the depth of the filter press tank (10).

5. The filter plate of the top-feed filter press according to claim 1, characterized in that: The protrusions (100) are distributed in a matrix, the bottoms of the protrusions (100) are all bonded and fixed to the filter core plate (1), the support points (11) are distributed at equal intervals, and the height of the support points (11) is adapted to the depth of the inner wall of the filter press tank (10).

6. The filter plate of the top-feed filter press according to claim 1, characterized in that: The liquid outlet troughs (101) are distributed at equal intervals, and the liquid outlet troughs (101) are connected to the filter press tank (10) and the cavity (15).

7. The filter plate of the top-feed filter press according to claim 1, characterized in that: An annular groove (13) is provided on the front end surface of the filter core plate (1) near the edge, and a snap ring (14) is provided on the rear end surface of the filter core plate (1) at a position corresponding to the annular groove (13). The snap ring (14) is bonded and fixed to the filter core plate (1), and the width of the outer wall of the snap ring (14) is adapted to the width of the inner wall of the annular groove (13).

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