Plate-and-frame filter press

Abstract

The utility model discloses a plate-and-frame filter press, which relates to the technical field of filter presses, and adopts the technical scheme that the plate-and-frame filter press comprises a filter pressing plate and guide blocks positioned on two sides of the filter pressing plate, filter cloth is arranged on two sides of the filter pressing plate, a plurality of convex columns are fixedly connected onto the peripheral wall of the filter pressing plate, the filter cloth comprises a filter part and an elastic part, the elastic part is arranged at the edge of the filter cloth, and the convex columns are fixedly connected onto the outer peripheral wall of the filter pressing plate. A plurality of through holes are formed in the elastic part, a pressing plate is further arranged on the peripheral wall of the filter pressing plate, round holes allowing the convex columns to penetrate through are formed in the pressing plate, and threaded holes are formed in the top surfaces of part of the convex columns. Through cooperation of the pressing plate and the protruding column, people do not need to bind the filter cloth one by one, the pressing plate can press the edge of the filter cloth at a time, people can fix the filter cloth conveniently, the fixing efficiency of people is guaranteed, the pressing plate can press the edge of the filter cloth at a time, the binding belt can only fix multiple points, and the fixing effect of the edge of the filter cloth is better.

Description

Technical Field

[0001] The utility model relates to the technical field of filter presses, and more specifically, it relates to a plate and frame filter press. Background Art

[0002] A plate and frame filter press, also known as a plate and frame filter, is a mechanical device that effectively separates solids and liquids in a suspension through pressure. The plate and frame filter press works through a closed filter chamber system. Under the applied pressure, the liquid in the suspension passes through the filter cloth, while the solid particles are retained on the filter cloth, gradually forming a filter cake. As the filter cake accumulates, the filtration resistance increases, and the filter press needs to provide sufficient pressure to maintain the efficiency of the filtration process.

[0003] The plate and frame filter press includes several filter plates. The filter plates are provided with a central hole and a number of peripheral holes. Several filter plates are attached to each other in the filter press to form a closed filter chamber. Filter cloths are arranged on both sides of the existing filter plates. Two filter cloths are connected together by a circular cloth passing through the central hole. Currently, both of the two filter cloths need to be attached to the filter plate. A number of small holes are formed at the edges of the existing filter cloths. People pass tie straps through the small holes of the two filter cloths to tie the two filter cloths together, so as to realize the attachment of the two filter cloths to the filter plate. However, in order to ensure the fixing effect, a large number of tie straps are required on the filter cloth, and the installation takes a long time.

[0004] Therefore, a new solution needs to be proposed to solve this problem. Content of the Utility Model

[0005] Aiming at the deficiencies of the existing technology, the purpose of the utility model is to provide a plate and frame filter press.

[0006] The above technical purpose of the utility model is achieved through the following technical solutions: A plate and frame filter press includes filter plates and guide blocks located on both sides of the filter plates. Filter cloths are arranged on both sides of the filter plates. A number of convex columns are fixedly connected to the outer peripheral wall of the filter plates. The filter cloth includes a filtering part and an elastic part. The elastic part is arranged at the edge of the filter cloth. A number of through holes are formed in the elastic part. The diameter of the through holes is smaller than the diameter of the convex columns. Pressing plates are further arranged on the peripheral walls of the filter plates. Round holes for passing through the convex columns are formed in the pressing plates. Threaded holes are formed in the top surfaces of the convex columns. The pressing plates press the filter cloths on the filter plates through bolts threadedly connected in the threaded holes.

[0007] The utility model is further arranged as: A rubber pad is fixedly connected to one side of the pressing plate.

[0008] The utility model is further arranged as: The pressing plate includes two pressing plates one and two pressing plates two. The thickness of the guide block is smaller than the thickness of the filter plate. A through groove for passing through the guide block is formed in the pressing plate two.

[0009] The present utility model is further configured such that an elastic ring is fixed on the inner edge of the through hole.

[0010] The present utility model is further configured such that an annular groove is formed on the convex post, and the annular groove is provided at the junction position of the convex post and the filter pressing plate.

[0011] The present utility model is further configured such that the length of the annular groove along the length direction of the convex post is at least twice the thickness of the elastic ring.

[0012] In summary, the present utility model has the following beneficial effects:

[0013] Through the cooperation of the pressing plate and the convex post, it enables people not to tie up repeatedly. The pressing plate can press the edge of the filter cloth at one time, which is convenient for people to fix, ensuring the efficiency of people's fixation. Moreover, the pressing plate can press the entire edge of the filter cloth at one time while the tie straps can only fix at multiple points, making the fixing effect of the filter cloth edge better. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is a schematic structural view of the present utility model;

[0015] Figure 2 is a schematic structural view of the filter pressing plate in the present utility model;

[0016] Figure 3 is a schematic structural view of the filter cloth in the present utility model;

[0017] Figure 4 is a partial cross-sectional view of the filter pressing plate in the present utility model.

[0018] In the figure: 1, filter pressing plate; 2, guide block; 3, filter cloth; 4, convex post; 5, filtering part; 6, elastic part; 7, through hole; 8, round hole; 9, threaded hole; 10, pressing plate one; 11, pressing plate two; 12, rubber pad; 13, elastic ring; 14, annular groove. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0019] The following combines the drawings and embodiments to describe the present utility model in detail.

[0020] Plate and frame filter press, such as Figure 1 , Figure 2 and Figure 3As shown in the figure, it includes a filter pressing plate 1 and guide blocks 2 located on both sides of the filter pressing plate 1. The filter pressing plate 1 is provided with a central hole and peripheral holes. The number of central holes is one, and the number of peripheral holes is four. The thickness of the filter pressing plate 1 at the position where the peripheral holes are opened is greater than the thickness of the filter pressing plate 1 at the position where the central hole is opened. Filter cloths 3 are provided on both sides of the filter pressing plate 1, and the two filter cloths 3 are connected together by an annular cloth. A number of convex columns 4 are fixedly connected to the outer peripheral wall of the filter pressing plate 1. The filter cloth 3 includes a filtering part 5 and an elastic part 6. The elastic part 6 is arranged at the edge of the filter cloth 3, and a number of through holes 7 are opened on the elastic part 6. The diameter of the through holes 7 is smaller than the diameter of the convex columns 4. The number of through holes 7 on one filter cloth 3 is equal to the number of convex columns 4 on the filter pressing plate 1. Pressing plates are further arranged on the four peripheral walls of the filter pressing plate 1. The number of pressing plates is four. Round holes 8 for passing through the convex columns 4 are opened on the pressing plates. Threaded holes 9 are opened on the top surfaces of the convex columns 4. Only some of the convex columns 4 are provided with threaded holes 9. The pressing plates press the filter cloth 3 on the filter pressing plate 1 through bolts screwed into the threaded holes 9. When people need to install the filter cloth 3 on the filter pressing plate 1, after people align one filter cloth 3 and pass it through the central hole, the annular cloth is arranged in the central hole. Then people make the filtering part 5 of the filter cloth 3 fit with the front and back sides of the filter pressing plate 1, and bend the edge of the filter cloth 3 towards the outer peripheral wall of the filter pressing plate 1, and the corresponding through holes 7 are penetrated by the convex columns 4. Since the through holes 7 are arranged on the elastic part 6, the through holes 7 can undergo a certain amount of deformation. Thus, when the through holes 7 are sleeved on the convex columns 4, the inner walls of the through holes 7 will be in close contact with the outer peripheral walls of the convex columns 4. This setting makes the filter cloth 3 located on the lower side of the filter pressing plate 1 not easily separated from the convex columns 4, and thus the pre-fixation of the edge of the filter cloth 3 can be realized. After all the through holes 7 on the two filter cloths 3 are penetrated by the corresponding convex columns 4, people respectively arrange the four pressing plates on the four side walls of the pressing plate, and make the round holes 8 on the pressing plates be penetrated by the corresponding convex columns 4. The thickness of the pressing plates is greater than the length of the convex columns 4. Finally, people screw the bolts into the convex columns 4 provided with threaded holes 9, and the nuts of the threads will abut against the outer edges of the round holes 8 to press the pressing plates against the side walls of the filter pressing plate 1. Through the above settings, people do not need to tie up one by one. The pressing plates can press the edges of the filter cloth 3 at one time, which is convenient for people to fix. And the pressing plates can press the edges of the filter cloth 3 at one time, while the tie straps can only fix at multiple points, so as to ensure the fixing effect of the edges of the filter cloth 3.

[0021] As Figure 3 and Figure 4As shown in the figure, the pressing plate includes two pressing plates one 10 and two pressing plates two 11. The thickness of the guiding block 2 is less than that of the filter pressing plate 1. A through groove for passing through the guiding block 2 is provided on the pressing plate two 11. Such a setting enables the guiding block 2 to pass through the pressing plate two 11, so that the setting of the pressing plate two 11 will not affect the fixing of the filter pressing plate 1. And threaded holes 9 are provided on the convex columns 4 on both sides of the guiding block 2. Such a setting makes it difficult for the position of the pressing plate on both sides of the guiding block 2 to shift. One side of the pressing plate is fixedly connected with a rubber pad 12. The side of the pressing plate for fixing the rubber pad 12 is used to contact the filter cloth 3. The setting of the rubber pad 12 can play a certain buffering role for the pressing plate, so that the pressure of the pressing plate is not easy to damage the edge of the filter cloth 3. An elastic ring 13 is fixed on the inner edge of the through hole 7. The elastic ring 13 is also made of rubber. The elastic ring 13 is bonded to the inner edge of the through hole 7. Thus, to a certain extent, it can ensure the integrity of the outer edge of the through hole 7, so that when the outer edge of the through hole 7 is sleeved on the convex column 4, the outer edge of the through hole 7 is not easy to be torn. And the elastic ring 13 also has the function of ensuring the shape of the through hole 7, so that the through hole 7 can always ensure a larger hole area, thus facilitating the convex column 4 to pass through the through hole 7. A ring groove 14 is provided on the convex column 4. The ring groove 14 is arranged at the junction of the convex column 4 and the filter pressing plate 1. After the convex column 4 passes through the through hole 7, people can dial the elastic ring 13 towards the direction of the ring groove 14, so that the elastic ring 13 is directly snapped into the ring groove 14. This further ensures the pre-fixing strength of the edge of the filter cloth 3. The length of the ring groove 14 along the length direction of the convex column 4 is at least twice the thickness of the elastic ring 13. Since two elastic rings 13 are sleeved on one convex column 4, such a setting enables both elastic rings 13 to be snapped into the ring groove 14.

[0022] The above is only the preferred embodiment of the present invention. The protection scope of the present invention is not limited to the above embodiments. All technical solutions within the idea of the present invention belong to the protection scope of the present invention. It should be pointed out that for those of ordinary skill in the art in this technical field, without departing from the principle of the present invention, several improvements and retouches should also be regarded as the protection scope of the present invention.

Claims

1. A plate and frame filter press, characterized in that: The invention comprises a filter press plate (1) and guide blocks (2) located on both sides of the filter press plate (1), filter cloths (3) are provided on both sides of the filter press plate (1), a plurality of bosses (4) are fixedly connected to the outer peripheral wall of the filter press plate (1), the filter cloth (3) comprises a filtering part (5) and an elastic part (6), the elastic part (6) is arranged on the edge of the filter cloth (3), a plurality of through holes (7) are provided on the elastic part (6), the diameter of the through holes (7) is smaller than the diameter of the bosses (4), a pressing plate is also provided on the surrounding walls of the filter press plate (1), a circular hole (8) for passing the bosses (4) is provided on the pressing plate, a threaded hole (9) is provided on the top surface of the bosses (4), and the pressing plate presses the filter cloth (3) onto the filter press plate (1) by means of bolts threadedly connected in the threaded holes (9).

2. The plate and frame filter press according to claim 1, characterized in that: The pressing plate comprises two pressing plates one (10) and two pressing plates two (11); the thickness of the guide block (2) is smaller than the thickness of the filter press plate (1); and a through groove for passing the guide block (2) is provided on the pressing plate two (11).

3. The plate and frame filter press according to claim 2, characterized in that: A rubber pad (12) is fixedly connected to one side of the pressing plate.

4. The plate and frame filter press according to claim 1, characterized in that: An elastic ring (13) is fixed on the inner edge of the through hole (7).

5. The plate and frame filter press according to claim 4, characterized in that: The convex column (4) is provided with an annular groove (14), and the annular groove (14) is arranged at the junction of the convex column (4) and the filter press plate (1).

6. The plate and frame filter press according to claim 5, characterized in that: The length of the annular groove (14) along the length direction of the protruding column (4) is at least twice the thickness of the elastic ring (13).

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