Filter plate edge protection device of plate-and-frame filter press

Abstract

The utility model discloses an edge protection device for a filter plate of a plate-and-frame filter press, a main positioning column and two groups of side positioning columns are arranged on the upper edge of the filter plate, the main positioning column is arranged at the central position of the upper edge of the filter plate, and the two groups of side positioning columns are arranged on the two sides of the main positioning column at equal intervals; the protection device comprises a horizontal plate and a vertical plate which are fixedly connected, a main positioning hole and a secondary positioning hole are formed in the horizontal plate, the distance between the circle centers of the main positioning hole and the secondary positioning hole is communicated with the distance between the circle centers of the main positioning column and the side positioning column, and an elastic ring is fixed to the bottom end of the vertical plate through a fixing unit. And the diameter of the elastic ring is greater than the thickness of the filter plate. The protection structure is additionally arranged on the edge of the filter plate, so that the filter plate is protected, and damage caused by collision of high dead weight of the filter plate in the moving process of the filter plate is avoided.

Description

Technical Field

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

[0002] The plate and frame filter press is a device widely used in the industrial field for solid-liquid separation. Its structure mainly includes filter plates and filter frames. This equipment is favored for its efficient and stable solid-liquid separation effect. However, during the operation of the filter press, the filter plate needs to move back and forth continuously to achieve solid filtration and solid removal. Due to the large dead weight of the filter plate, this repeated movement may cause some mechanical damage. Especially at the edge of the filter plate, these parts are prone to collision with other parts or fixed structures of the machine during movement. This collision may not only cause physical damage to the filter plate, such as wear or breakage of the edge, but may also have an adverse effect on the overall stability and service life of the machine.

[0003] This wear may gradually increase over time, thus affecting the efficiency and filtration quality of the filter press. For example, edge wear may cause damage to the filter medium, which in turn affects the filtration effect, causing solid particles to leak through the edge of the filter plate, reducing the solid recovery rate. In addition, the collision of the filter plate may also cause noise during equipment operation, affecting the comfort of the working environment.

[0004] In order to reduce this damage, effectively extend the service life of the filter press, and improve its working efficiency and filtration quality. For example, the utility model with the publication number CN210645286U discloses a filter plate protection device, which also includes a speed sensor installed on each handle; two speed sensors are respectively connected to the two input ends of the comparator; the output end of the comparator is connected to the control end of the relay; the normally closed contact of the relay is connected in series with the coil of the contactor to form a closed loop; the normally open contact of the contactor is set between the drive device and the power supply of the filter press. By installing a speed sensor on the handles on both sides of the same filter plate to measure the speed of the two rollers, and comparing the analog quantities of the two speed sensors through the comparator, when the speeds of the two rollers are different (such as different wear or stuck), the drive device stops, the filter plate stops moving, and the maintenance personnel replace the roller to prevent the filter plate from being damaged due to continued movement, so as to ensure the normal use of the filter press and avoid affecting normal production due to filter plate damage.

[0005] However, the above structure achieves protection through sensors and electrical control. If protection can be achieved through improvements in the physical structure, the protection effect will certainly be further improved. Utility Model Content

[0006] To solve the problems existing in the prior art, the purpose of the present utility model is to disclose an edge protection device for the filter plate of a plate-and-frame filter press. By adding a protection structure to the edge of the filter plate, the filter plate can be protected to avoid damage caused by the collision of its own high self-weight during the movement process.

[0007] To achieve the above effects, the present application discloses an edge protection device for the filter plate of a plate-and-frame filter press. The upper edge of the filter plate is provided with a main positioning column and two groups of side positioning columns. The main positioning column is arranged at the center position of the upper edge of the filter plate, and the two groups of side positioning columns are equidistantly spaced on both sides of the main positioning column; the protection device includes a horizontally arranged plate and a vertically arranged plate fixedly connected. The horizontal plate is provided with a main positioning hole and a secondary positioning hole, and the distance between the centers of the main positioning hole and the secondary positioning hole is the same as the distance between the centers of the main positioning column and the side positioning columns. The bottom end of the vertical plate is fixed with an elastic ring through a fixing unit, and the diameter of the elastic ring is greater than the thickness of the filter plate.

[0008] Further, the fixing unit includes a regular hexagonal prism fixedly arranged on the vertical plate. A threaded hole is provided at the center of the regular hexagonal prism. The fixing unit also includes a socket. The inner side of the socket is provided with a hole matching the regular hexagonal prism, and the socket is fixed to the regular hexagonal prism through a bolt. An upper stop rod is also arranged on the socket.

[0009] Further, the elastic ring is a circular ring.

[0010] Further, the elastic ring includes an outer layer and a plurality of triangular columns arranged at intervals inside the outer layer.

[0011] Further, long slits are provided at the front and rear ends of the secondary positioning hole.

[0012] Further, the elastic ring is a rubber ring.

[0013] The beneficial effects of the present utility model include:

[0014] By using the main positioning column and the side positioning columns at the top of the filter plate, the protection device composed of the horizontal plate, the vertical plate and the fixing unit is arranged on the side of the filter plate. Due to the elasticity of the elastic ring itself, when the filter plates collide with each other, through the buffering between the elastic rings, the phenomenon of direct violent impact of the filter plates is avoided, thereby protecting the filter plates from damage. Description of the Drawings

[0015] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0016] Figure 1 It is a schematic diagram of a filter press in the prior art of the present invention.

[0017] Figure 2 It is a schematic structural diagram of a filter plate in the prior art of the present invention.

[0018] Figure 3 It is a schematic structural diagram of a filter plate with a protection device of the present invention.

[0019] Figure 4 It is a schematic structural diagram of the protection device of the present invention.

[0020] Figure 5 For the present invention Figure 4 Partial enlarged structural schematic diagram.

[0021] Figure 6 It is a schematic structural diagram of the fixing unit of the present invention.

[0022] Figure 7 It is an exploded structural schematic diagram of the fixing unit of the present invention.

[0023] Figure 8 It is a schematic structural diagram of an elastic ring of a preferred embodiment of the present invention.

[0024] Wherein: filter plate - 1, main positioning column - 2, side positioning column - 3, horizontal plate - 4, vertical plate - 5, main positioning hole - 6, secondary positioning hole - 7, fixing unit - 8, elastic ring - 9, long slot - 10, regular hexagonal prism - 81, threaded hole - 82, socket - 83, bolt - 84, upper stop bar - 85, outer ring - 91, triangular column - 92. Specific embodiments

[0025] The following will further elaborate on the specific embodiments of the present invention in the form of combining with the drawings. However, the following embodiments only list relatively preferred embodiments, which only serve to explain and help understand the present invention, and should not be construed as a limitation to the present invention.

[0026] Reference Figures 1-7, A plate-frame filter press filter plate edge protection device, wherein the upper edge of the filter plate 1 is provided with a main positioning column 2 and two groups of side positioning columns 3. The main positioning column is arranged at the center position of the upper edge of the filter plate, and the two groups of side positioning columns are equidistantly arranged on both sides of the main positioning column; the protection device includes a horizontally connected horizontal plate 4 and a vertical plate 5. The horizontal plate is provided with a main positioning hole 6 and a secondary positioning hole 7. The distance between the centers of the main positioning hole and the secondary positioning hole is the same as the distance between the centers of the main positioning column and the side positioning column. The bottom end of the vertical plate 5 is fixed with an elastic ring 9 through a fixing unit 8, and the diameter of the elastic ring is greater than the thickness of the filter plate.

[0027] During use, the protection device composed of the horizontal plate, the vertical plate and the fixing unit is arranged on the side of the filter plate. Due to the elasticity of the elastic ring itself, when the filter plates collide with each other, through the buffering between the elastic rings, the phenomenon of direct violent impact of the filter plates is avoided, thereby protecting the filter plates from damage.

[0028] Preferably, the fixing unit 8 includes a regular hexagonal prism 81 fixedly arranged on the vertical plate 5. A threaded hole 82 is provided at the center of the regular hexagonal prism 81. It also includes a socket 83. The inner side of the socket is provided with a hole matching the regular hexagonal prism, and the socket 83 is fixed to the regular hexagonal prism 81 through a bolt 84. An upper stop bar 85 is also arranged on the socket.

[0029] By sleeving the elastic ring on the regular hexagonal prism, then sleeving the socket on one end of the regular hexagonal prism, and then fixedly connecting the socket and the regular hexagonal prism through a bolt, the space formed among the stop bar, the regular hexagonal prism, the socket and the vertical plate limits the position of the elastic ring at this time. It can neither fall off nor play a role in shock absorption.

[0030] Preferably, the elastic ring is a circular ring.

[0031] More preferably, the elastic ring 9 includes an outer layer 91 and a number of triangular columns 92 arranged at intervals inside the outer layer 91. This structure makes the elastic ring have a longer service life and is not easily deformed due to repeated extrusion.

[0032] Preferably, long slots 10 are provided at the front and rear ends of the secondary positioning hole 7. Through the setting of the long slots, when the elastic ring drives the vertical plate and the horizontal plate to twist due to extrusion, the long slots can provide sufficient movement allowance for the horizontal plate, making it not easily deformed.

[0033] The embodiments described above are only descriptions of the preferred embodiments of the present utility model, and do not limit the scope of the present utility model. Without departing from the spirit of the present utility model, various deformations and improvements made by those of ordinary skill in the art to the technical solutions of the present utility model shall fall within the protection scope determined by the claims of the present utility model.

Claims

1. A filter plate edge protection device for a plate-and-frame filter press, characterized in that: The upper edge of the filter plate (1) is provided with a main positioning column (2) and two groups of side positioning columns (3), the main positioning column is provided at the center position of the upper edge of the filter plate, and the two groups of side positioning columns are provided at equal intervals on both sides of the main positioning column; the protection device comprises a horizontal plate (4) and a vertical plate (5) which are fixedly connected, the horizontal plate is provided with a main positioning hole (6) and a secondary positioning hole (7), the distance between the center of the main positioning hole and the secondary positioning hole is the same as the distance between the center of the main positioning column and the side positioning column, and the bottom end of the vertical plate (5) is fixed with an elastic ring (9) through a fixing unit (8), and the diameter of the elastic ring is greater than the thickness of the filter plate.

2. The filter plate edge protection device of a plate and frame filter press according to claim 1, characterized in that: The fixing unit (8) comprises a regular hexagonal prism (81) fixedly mounted on the vertical plate (5), a threaded hole (82) being provided at the center of the regular hexagonal prism (81), and a sleeve (83) having a hole matching the regular hexagonal prism provided on the inner side of the sleeve, and the sleeve (83) is fixed to the regular hexagonal prism (81) by means of bolts (84), and an upper stopper (85) is also provided on the sleeve.

3. The filter plate edge protection device of a plate and frame filter press according to claim 1, characterized in that: The elastic ring is a circular ring.

4. The filter plate edge protection device of a plate and frame filter press according to claim 1, characterized in that: The elastic ring (9) comprises an outer ring layer (91) and a plurality of triangular prisms (92) arranged at intervals on the inner side of the outer ring layer (91).

5. The filter plate edge protection device of a plate and frame filter press according to claim 1, characterized in that: Long slits (10) are provided at the front and rear ends of the secondary positioning hole (7).

6. The filter plate edge protection device of a plate and frame filter press according to claim 1, characterized in that: The elastic ring is a rubber ring.

Images