Filter plate limiting structure of filter press

Abstract

The filter plate limiting structure comprises a filter press body, a plurality of filter plates are arranged in the middle of the right end of the filter press body in a sliding array mode, hydraulic pushing plates are arranged at the positions, corresponding to the filter plates, of the left end of the filter press body, and the front side and the rear side of the filter press body are each provided with a set of connecting columns corresponding to the hydraulic pushing plates. Sliding grooves are transversely formed in the opposite faces of the two sets of connecting columns respectively, sliding assemblies in sliding connection with the hydraulic pushing plate are arranged at the positions, corresponding to the corresponding sliding grooves, of the front side and the rear side of the hydraulic pushing plate, and limiting structures are arranged at the right ends, corresponding to the sliding grooves, of the two sets of connecting columns. The limiting structure can be just clamped with the sliding assembly; the hydraulic pushing plate is limited through the limiting structure, the limiting state can be continuously kept, continuous pressure supplementing does not need to be conducted on the hydraulic pushing plate, energy consumption is greatly reduced, meanwhile, when the filter plate is kept in the filter pressing state, pressure brought by continuous pressure supplementing is avoided, damage to the filter plate is relieved, and the service life of the filter plate is prolonged.

Description

Technical Field

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

[0002] Filter press is an important equipment widely used in chemical, pharmaceutical, food and other industries to achieve solid-liquid separation. It uses a certain number of filter plates to be tightly arranged in a row under the action of strong mechanical force. A filter chamber is formed between the filter plates. The filter material is sent into the filter chamber under a strong positive pressure. The solid part of the filter material entering the filter chamber is retained by the filter cloth to form a filter cake, and the liquid part passes through the filter medium and is discharged from the filter chamber, thereby achieving the purpose of solid-liquid separation.

[0003] Traditional filter presses generally use a hydraulic locking circuit to maintain the rodless chamber of the clamping cylinder and the system at a certain pressure value to seal the rodless chamber of the clamping cylinder. When the pressure of the rodless chamber of the clamping cylinder and the system drops, the pressure is immediately replenished to compress the filter plate and maintain pressure.

[0004] In this traditional method, the sealing components of the hydraulic system are easily worn and the pressure is maintained for a short time. The pump station needs to be frequently started to replenish the pressure of the clamping cylinder. This not only wastes energy, but also increases the pressure on the filter plate by continuously replenishing the pressure, which will greatly reduce the service life of the filter plate over time. Utility Model Content

[0005] In view of the above technical problems in the prior art, the utility model provides a filter plate limiting structure of a filter press, aiming to solve the above problems.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A filter plate limiting structure for a filter press is applied to a filter press body, wherein a plurality of filter plates are arranged in a sliding array in the middle of the right end of the filter press body, a hydraulic push plate is arranged at the left end corresponding to the plurality of filter plates, a group of connecting columns are respectively arranged at the front and rear sides of the filter press body corresponding to the hydraulic push plates, sliding grooves are respectively opened transversely on opposite sides of the two groups of connecting columns, sliding components slidably connected to the corresponding sliding grooves are arranged at the front and rear sides of the hydraulic push plates corresponding to the corresponding sliding grooves, and limiting structures are arranged at the right ends of the two groups of connecting columns corresponding to the sliding grooves, the limiting structure is electrically connected to an external device, and when the hydraulic push plate pushes the plurality of filter plates to fit completely, the limiting structure can be just engaged with the sliding component.

[0008] Preferably, each group of connecting columns has two, which are arranged up and down, and sliding grooves are provided on the four connecting columns. There are four limiting structures, which are respectively arranged at the upper ends of each group of upper connecting columns and the lower ends of the lower connecting columns.

[0009] Preferably, the sliding assembly includes four connecting rods, and the four connecting rods are fixed in pairs on the front and rear sides of the hydraulic push plate and are arranged corresponding to the sliding grooves of the connecting column. The opposite ends of the four connecting rods extend outward into the corresponding sliding grooves and are slidably connected thereto.

[0010] Preferably, one end of the connecting rod located in the sliding groove is provided with a limiting sliding block slidably connected to the sliding groove, and a through hole is vertically opened on the right side of the limiting sliding block, and the limiting sliding block can be clamped with the limiting structure through the through hole.

[0011] Preferably, the limiting structure includes a hydraulic cylinder, which is fixed on the upper side or lower side of the connecting column. One end of the hydraulic cylinder corresponding to the sliding groove is provided with a piston rod matching the inner diameter of the through hole. The piston rod passes through the connecting column and can extend into the sliding groove. The piston rod is slidably connected to the connecting column. When the hydraulic push plate pushes multiple filter plates to fit completely, the piston rod moves downward and can be inserted into the through hole.

[0012] Preferably, a limiting groove matching the top of the piston rod is provided on the side of the sliding groove opposite to the top of the piston rod.

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] The utility model provides a filter plate limiting structure for a filter press. When working, under the push of a hydraulic push plate, multiple filter plates are pushed to be fully fitted to perform filtering work. At this time, the through hole on the limiting slider corresponds to the piston rod of the hydraulic cylinder. The piston rod of the hydraulic cylinder is extended and inserted into the through hole through an external device to limit it, thereby ensuring that the hydraulic push plate can continuously maintain a limited state after pushing the filter plate, and there is no need to continuously supplement the pressure on the hydraulic push plate, which greatly reduces energy consumption. At the same time, when the filter plate maintains a filtration state, it will not be subjected to the pressure caused by continuous supplementary pressure, thereby reducing damage to the filter plate and increasing the service life of the filter plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the overall structure of a filter plate limiting structure of a filter press according to the utility model;

[0016] Figure 2 This is a schematic diagram of the connection between the sliding assembly and the connecting column of the filter plate limiting structure of the filter press described in the utility model;

[0017] Figure 3 It is a schematic diagram of the connection between the limiting structure and the connecting column of the filter plate limiting structure of the filter press described in the utility model.

[0018] In the figure: 1. filter press body; 2. filter plate; 3. hydraulic push plate; 4. connecting column; 41. sliding groove; 42. limiting groove; 5. sliding assembly; 51. connecting rod; 52. limiting slider; 53. through hole; 6. limiting structure; 61. hydraulic cylinder; 62. piston rod. DETAILED DESCRIPTION

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

[0020] See also Figure 1-3 , the embodiment proposed in the present application is: a filter plate limiting structure of a filter press, applied to a filter press body 1, a plurality of filter plates 2 are arranged in a sliding array in the middle of the right end of the filter press body 1, a hydraulic push plate 3 is arranged at the left end corresponding to the plurality of filter plates 2, a group of connecting columns 4 are arranged at the front and rear sides of the filter press body 1 corresponding to the hydraulic push plate 3, and sliding grooves 41 are respectively opened transversely on the opposite sides of the two groups of connecting columns 4, and sliding components 5 slidably connected thereto are arranged at the front and rear sides of the hydraulic push plate 3 corresponding to the corresponding sliding grooves 41, and limiting structures 6 are arranged at the right ends of the two groups of connecting columns 4 corresponding to the sliding grooves 41, and the limiting structure 6 is electrically connected to the external device, and when the hydraulic push plate 3 pushes the plurality of filter plates 2 to fit completely, the limiting structure 6 can be just engaged with the sliding component;

[0021] The piston rod 62 of the hydraulic cylinder 61 is extended and inserted into the through hole 53 through an external device to limit it, thereby ensuring that the hydraulic push plate 3 can continue to maintain the limited state after pushing the filter plate 2. There is no need to continuously supplement the pressure on the hydraulic push plate 3, which greatly reduces energy consumption. At the same time, when the filter plate 2 maintains the filtration state, it will not be affected by the pressure caused by continuous supplementary pressure, which reduces damage to the filter plate 2 and increases the service life of the filter plate 2. The working principle of the filter press for filtration, the external control device and the connection method with the hydraulic cylinder are all existing technologies and will not be elaborated here.

[0022] In another embodiment, see Figure 1 and 3 There are two connecting columns 4 in each group, which are arranged up and down. Sliding grooves are provided on the four connecting columns 4. There are four limiting structures 6, which are respectively arranged at the upper end of each group of upper connecting columns 4 and the lower end of the lower connecting column 4. The connecting columns 4 and the limiting structures 6 arranged in pairs can comprehensively limit the periphery of the hydraulic push plate 3, so that the force is evenly distributed when the compression state is maintained, and the filtering work of the filter press will not be affected.

[0023] In another embodiment, see Figure 1 and 3 The sliding assembly 5 includes four connecting rods 51, and the four connecting rods 51 are fixedly arranged on the front and rear sides of the hydraulic push plate 3 in pairs, and are arranged corresponding to the sliding grooves 41 of the connecting column 4. The opposite ends of the four connecting rods 51 extend outward into the corresponding sliding grooves 41 and are slidably connected thereto. One end of the connecting rod 51 located in the sliding groove 41 is provided with a limiting slider 52 slidably connected to the sliding groove 41, and a through hole 53 is vertically opened on the right side of the limiting slider 52, and the limiting slider 52 can be clamped with the limiting structure 6 through the through hole 53.

[0024] At the same time, the limiting structure 6 includes a hydraulic cylinder 61, which is fixed to the upper side or lower side of the connecting column 4. One end of the hydraulic cylinder 61 corresponding to the sliding groove 41 is provided with a piston rod 62 matching the inner diameter of the through hole 53. The piston rod 62 passes through the connecting column 4 and can extend into the sliding groove 41. The piston rod 62 is slidably connected to the connecting column 4. When the hydraulic push plate 3 pushes the multiple filter plates 2 to fit completely, the piston rod 62 moves downward and can be inserted into the through hole 53.

[0025] Under the push of the hydraulic push plate 3, multiple filter plates 2 are pushed to fully fit together for filtering. At this time, the through hole 53 on the limit slider 52 corresponds to the piston rod 62 of the hydraulic cylinder 61. The piston rod 62 of the hydraulic cylinder 61 is extended and inserted into the through hole 53 through an external device to limit it, thereby ensuring that the hydraulic push plate 3 can continue to maintain a limited state after pushing the filter plate 2. At the same time, a limiting groove 42 matching the top of the piston rod 62 is opened on the side of the sliding groove 41 opposite to the top of the piston rod 62. After the piston rod 62 is inserted, its top abuts against the limiting groove 42. In the process of continuous limiting, the pressure on the piston rod 62 can be reduced and its service life can be increased.

[0026] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0027] In the description of the present invention, unless otherwise specified, "plurality" means two or more; the terms "upper", "lower", "left", "right", "inside", "outside", "front end", "rear end", "head", "tail", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0028] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A filter plate limiting structure for a filter press, applied to a filter press body (1), wherein a plurality of filter plates (2) are arranged in a sliding array in the middle of the right end of the filter press body (1), and a hydraulic push plate (3) is arranged at the left end corresponding to the plurality of filter plates (2), characterized in that: A group of connecting columns (4) are respectively provided at the front and rear sides of the filter press body (1) corresponding to the hydraulic push plate (3), and sliding grooves (41) are respectively opened transversely on the opposite sides of the two groups of connecting columns (4). Sliding components (5) slidably connected thereto are provided at the front and rear sides of the hydraulic push plate (3) corresponding to the corresponding sliding grooves (41). A limiting structure (6) is provided at the right end of the sliding groove (41) corresponding to the two groups of connecting columns (4). The limiting structure (6) is electrically connected to an external device. When the hydraulic push plate (3) pushes the multiple filter plates (2) to be completely fitted, the limiting structure (6) can be just engaged with the sliding component.

2. The filter plate limiting structure of a filter press according to claim 1, characterized in that: Each group of connecting columns (4) has two connecting columns (4), which are arranged up and down. The four connecting columns (4) are provided with sliding grooves. There are four limiting structures (6), which are respectively arranged at the upper end of each group of upper connecting columns (4) and the lower end of the lower connecting columns (4).

3. The filter plate limiting structure of a filter press according to claim 2, characterized in that: The sliding assembly (5) includes four connecting rods (51), and the four connecting rods (51) are fixedly arranged on the front and rear sides of the hydraulic push plate (3) in pairs, and are arranged corresponding to the sliding grooves (41) of the connecting column (4). The opposite ends of the four connecting rods (51) extend outward into the corresponding sliding grooves (41) and are slidably connected thereto.

4. The filter plate limiting structure of a filter press according to claim 3, characterized in that: One end of the connecting rod (51) located in the sliding groove (41) is provided with a limiting slider (52) slidably connected to the sliding groove (41), and a through hole (53) is vertically opened on the right side of the limiting slider (52). The limiting slider (52) can be clamped with the limiting structure (6) through the through hole (53).

5. A filter plate limiting structure for a filter press according to claim 4, characterized in that: The limiting structure (6) comprises a hydraulic cylinder (61), wherein the hydraulic cylinder (61) is fixedly arranged on the upper side or the lower side of the connecting column (4), and one end of the hydraulic cylinder (61) corresponding to the sliding groove (41) is provided with a piston rod (62) matching the inner diameter of the through hole (53), and the piston rod (62) passes through the connecting column (4) and can extend into the sliding groove (41), and the piston rod (62) is slidably connected to the connecting column (4), and when the hydraulic push plate (3) pushes the multiple filter plates (2) to completely fit together, the piston rod (62) moves downward and can be inserted into the through hole (53).

6. The filter plate limiting structure of a filter press according to claim 5, characterized in that: A limiting groove (42) matching the top of the piston rod (62) is provided on a side of the sliding groove (41) opposite to the top of the piston rod (62).

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