Filter bag mounting structure for filter press

Abstract

The utility model discloses a filter bag mounting structure of filter press, filter bag is in the installation process, the square rubber ring of being located filter piece part edge and cross section is greater than semicircle is embedded in square limiting slot and is installed after deformation, because square rubber ring supports the edge of filter bag and strengthens, and square rubber ring is embedded in square limiting slot and can not wrinkle deformation, and the part of two filter piece parts of cooperation pressure -tightening subassembly is close to connecting cylinder part and is pressed on the sliding board, finally has the effect of guaranteeing the flatness after filter bag installation, simultaneously in the process of two sliding boards of filter mechanism of filter press and being close to contact, the setting of square rubber ring can realize the effect of buffering.

Description

Technical Field

[0001] This utility model relates to the field of filter press technology, and in particular to a filter bag installation structure for a filter press. Background Technology

[0002] A chamber filter press can extract solids from a liquid mixture, achieving solid-liquid separation. It is used in industries such as pharmaceuticals, chemicals, standard parts, pharmaceutical manufacturing, metallurgy, non-standard screws, dyes, food, brewing, ceramics, oil refining, and wastewater treatment. A chamber filter press includes a frame, multiple movable filter mechanisms mounted on the frame, a clamping device to press the filter mechanisms together, a drive device to open the filter mechanisms one by one, and a drainage device mounted on the frame and connected to the filter mechanisms.

[0003] The filtration mechanism mainly consists of multiple sliding plates and multiple filter bags. The filter bags pass through the middle of the sliding plates and wrap around the two end faces of the sliding plates after installation. The parts of the filter bags on two adjacent sliding plates that are close to each other form a filtration cavity. The filter bags need to be replaced and cleaned regularly during use to ensure the filtration efficiency of the filter press. During the installation process, multiple cable ties are usually used to fix the edges of the filter bags located on the end faces of the sliding plates. However, in this installation method, firstly, the installation of the filter bags is relatively inconvenient, and secondly, the cable ties can easily cause wrinkles on the edges of the filter bags during binding, which may lead to leakage between the two filter bags when the two sliding plates are pressed together. Summary of the Invention

[0004] The purpose of this invention is to provide a filter bag installation structure for a filter press, which ensures the flatness of the filter bag after installation.

[0005] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a filter bag installation structure for a filter press, comprising a sliding plate with a through hole in the middle, a filter bag installed on the sliding plate, and square limiting grooves with a cross-section larger than a semicircle provided on the edges of both end faces of the sliding plate, the corners of the square limiting grooves being arc-shaped; the filter bag includes a connecting cylinder portion for passing through the through hole of the sliding plate, two filter sheet portions disposed at both ends of the connecting cylinder portion and respectively attached to the two end faces of the sliding plate, a pressing assembly for pressing the portions of the two filter sheet portions close to the connecting cylinder portion onto the sliding plate, and a square rubber ring disposed on the edge of the filter sheet portion with a cross-section larger than a semicircle; the square rubber ring is embedded in the square limiting groove after deformation.

[0006] By adopting the above technical solution, during the installation of the filter bag, the square rubber ring located at the edge of the filter plate section and with a cross-section larger than a semicircle is embedded in the square limiting groove after deformation. Because the square rubber ring supports and strengthens the edge of the filter bag, and the square rubber ring will not wrinkle or deform when embedded in the square limiting groove, it works in conjunction with the pressing component to press the two filter plate sections near the connecting cylinder section onto the sliding plate, ultimately ensuring the flatness of the filter bag after installation. At the same time, the square rubber ring can provide a buffering effect when the two sliding plates of the filter mechanism of the filter press come into close contact.

[0007] A further feature of this invention is that the square rubber ring has a flattened extension portion extending to the end face of the filter portion away from the sliding plate, and the edge of the filter portion is engaged within the square rubber ring.

[0008] By adopting the above technical solution and setting the extended plate section, the bonding strength between the square rubber ring and the filter plate section is first improved, and the buffering effect is further improved when the two sliding plates of the filter mechanism of the filter press come into close contact.

[0009] A further feature of this invention is that the pressing assembly includes an internally threaded tube with a first pressing plate and an externally threaded tube with a second pressing plate. The internally threaded tube and the externally threaded tube are threaded together after entering from both sides of the through hole. The first pressing plate and the second pressing plate respectively press the two filter parts close to the synchronous connection portion onto the two sides of the sliding plate.

[0010] By adopting the above technical solution, the pressing assembly includes an internally threaded tube with a first pressing plate and an externally threaded tube with a second pressing plate. The internally threaded tube and the externally threaded tube are threaded together after entering from both sides of the through hole, so that the first pressing plate and the second pressing plate respectively press the two filter parts close to the synchronous connection part on the two sides of the sliding plate.

[0011] A further feature of this invention is that: two limiting shafts are slidably connected to both ends of each side of the sliding plate; an elastic component is provided between the two adjacent limiting shafts and the sliding plate to drive the two limiting shafts to move toward each other; a limiting piece is provided at the corner of the filter part for fitting onto the limiting shaft; during the movement of the two limiting shafts toward each other, the limiting shafts tighten the limiting piece.

[0012] By adopting the above technical solution, the stability of the filter bag after installation is further improved by setting the limiting shaft and the limiting plate on the filter plate. At the same time, the limiting shaft is slidably set on the sliding plate, and an elastic component is set between the two adjacent limiting shafts and the sliding plate to drive the two limiting shafts to move toward each other. Finally, the limiting shafts tighten the limiting plate during the movement of the two limiting shafts toward each other.

[0013] A further setting of the utility model is that sliding grooves with a "convex" cross-section are provided at the folded corners on the peripheral side of the sliding plate. An installation opening is provided in the middle of the sliding groove. A sliding block that is embedded from the installation opening and slidably connected in the sliding groove is provided at the lower end of the limiting shaft. Guide slopes are provided on the end faces of the two sliding blocks that are close to each other. The elastic component includes two compression springs that are embedded in the sliding groove after compression and are respectively located at both ends of the sliding groove, a limiting piece provided at the installation opening to prevent the sliding block from falling off, a wedge-shaped block provided on the limiting piece to drive the two sliding blocks to move against the elastic force of the compression springs during installation, and fixing screws provided between the limiting piece and the sliding plate.

[0014] By adopting the above technical solution, during installation, first embed the two compression springs into both ends of the sliding groove from the installation opening, then embed the sliding blocks at the lower end of the limiting shaft into the installation opening and install them at both ends of the sliding groove. Then, during the installation of the limiting piece, due to the setting of the wedge-shaped block, the installation seat squeezes the compression springs, causing the two limiting shafts to move in the direction away from each other, so that it is convenient to sleuth the limiting piece part after the two limiting shafts are separated. At this time, when installing the limiting piece part on the limiting shaft, by overcoming the elastic force of the compression spring, the limiting shaft moves towards the direction of the limiting piece part, which is convenient for the limiting piece part to be sleeved on the limiting shaft. And when the limiting shaft is released, under the reset action of the compression spring, the limiting shaft tightens the limiting piece part. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a schematic structural view of the utility model;

[0016] Figure 2 is an exploded view of the structure of the utility model;

[0017] Figure 3 is Figure 1 a partial enlarged view at position A in

[0018] Figure 4 is a partial structural cross-sectional view of the utility model at the connection of the limiting piece part

[0019] Reference numerals: 1. Sliding plate; 1-1. Through hole; 1-2. Square limiting groove; 1-3. Limiting shaft; 1-3-1. Sliding block; 1-3-2. Guide slope; 1-4. Elastic component; 1-4-1. Compression spring; 1-4-2. Limiting piece; 1-4-3. Wedge block; 1-4-4. Fixing screw; 1-5. Sliding groove; 1-6. Mounting port; 2. Filter bag; 2-1. Connecting cylinder part; 2-2. Filter plate part; 2-3. Limiting piece part; 2-3. Pressing component; 2-3-1. Internal threaded tube; 2-3-1-1. First pressing piece; 2-3-2. External threaded tube; 2-3-2-1. Second pressing piece; 2-4. Square rubber ring; 2-4-1. Extension piece part. Detailed Implementation

[0020] The present invention will be further described in detail below with reference to the accompanying drawings.

[0021] Example: A filter bag mounting structure for a filter press, such as... Figure 1 and Figure 2 As shown, it includes a sliding plate 1 with a through hole 1-1 in the middle and a filter bag 2 mounted on the sliding plate 1.

[0022] like Figure 1 and Figure 2 As shown, the sliding plate 1 has square limiting grooves 1-2 with a cross-section larger than a semicircle on both sides of its end face edges, and the corners of the square limiting grooves 1-2 are rounded. The filter bag 2 includes a connecting cylinder part 2-1 for passing through the through hole 1-1 of the sliding plate 1, two filter sheet parts 2-2 disposed at both ends of the connecting cylinder part 2-1 and respectively attached to the two end faces of the sliding plate 1, a pressing assembly 2-3 for pressing the parts of the two filter sheet parts 2-2 near the connecting cylinder part 2-1 onto the sliding plate 1, and a square rubber ring 2-4 with a cross-section larger than a semicircle disposed on the edge of the filter sheet part 2-2; the square rubber ring 2-4 is embedded in the square limiting groove 1-2 after deformation.

[0023] like Figures 2 to 4 As shown, the square rubber ring 2-4 is provided with a flattened extension portion 2-4-1 extending to the end face of the filter portion 2-2 away from the sliding plate 1. The edge of the filter portion 2-2 is engaged within the square rubber ring 2-4. The clamping assembly 2-3 includes an internally threaded tube 2-3-1 with a first clamping plate 2-3-1-1 and an externally threaded tube 2-3-2 with a second clamping plate 2-3-2-1. The internally threaded tube 2-3-1 and the externally threaded tube 2-3-2 enter from both sides of the through hole 1-1 and are threaded together. The first clamping plate 2-3-1-1 and the second clamping plate 2-3-2-1 respectively clamp the two filter portions 2-2 close to the synchronous connection on the two sides of the sliding plate 1.

[0024] like Figures 2 to 4As shown in the figure, two limiting shafts 1-3 are respectively and slidably connected to both ends of each side of the sliding plate 1. An elastic component 1-4 for driving the two limiting shafts 1-3 to move towards each other is provided between the two adjacent limiting shafts 1-3 and the sliding plate 1. A limiting piece portion 2-2-1 for sleeving on the limiting shaft 1-3 is provided at the corner of the filter piece portion 2-2. The limiting piece portion 2-2-1 penetrates through the side surface of the square rubber ring 2-4. During the movement of the two limiting shafts 1-3 towards each other, the limiting shaft 1-3 tightens the limiting piece portion 2-2-1.

[0025] As Figures 2 to 4 shown in the figure, a sliding groove 1-5 with a "convex" cross-section is provided at the corner of the peripheral side of the sliding plate 1. An installation port 1-6 is provided in the middle of the sliding groove 1-5. A sliding block 1-3-1 is provided at the lower end of the limiting shaft 1-3 and is slidably connected to the inside of the sliding groove 1-5 after being embedded from the installation port 1-6. Guide inclined surfaces 1-3-2 are provided on the end faces of the two sliding blocks 1-3-1 that are close to each other. The elastic component 1-4 includes two compression springs 1-4-1 that are embedded in the sliding groove 1-5 after being compressed and are respectively located at both ends of the sliding groove 1-5, a limiting piece 1-4-2 provided at the installation port 1-6 to prevent the sliding block 1-3-1 from falling off, a wedge-shaped block 1-4-3 provided on the limiting piece 1-4-2 to drive the two sliding blocks 1-3-1 to move after overcoming the elastic force of the compression spring 1-4-1 during installation, and a fixing screw 1-4-4 provided between the limiting piece 1-4-2 and the sliding plate 1.

[0026] Implementation effect: During the installation of the filter bag 2, the square rubber ring 2-4 located at the edge of the filter piece portion 2-2 and with a cross-section larger than a semi-circle is deformed and embedded in the square limiting groove 1-2 for installation. Since the square rubber ring 2-4 supports and strengthens the edge of the filter bag 2, and the square rubber ring 2-4 is embedded in the square limiting groove 1-2 without wrinkling or deformation, and in cooperation with the pressing component 2-3, the parts of the two filter piece portions 2-2 close to the connecting cylinder portion 2-1 are pressed on the sliding plate 1, finally playing a role in ensuring the flatness of the filter bag 2 after installation; at the same time, during the process of the two sliding plates 1 of the filtering mechanism of the filter press approaching and contacting each other, the setting of the square rubber ring 2-4 can achieve a buffering effect.

[0027] By setting the extension plate 2-4-1, the bonding strength between the square rubber ring 2-4 and the filter plate 2-2 is first improved, and secondly, the buffering effect is further improved during the process of the two sliding plates 1 of the filter mechanism of the filter press coming into close contact. The pressing assembly 2-3 includes an internally threaded tube 2-3-1 with a first pressing plate 2-3-1-1 and an externally threaded tube 2-3-2 with a second pressing plate 2-3-2-1. The internally threaded tube 2-3-1 and the externally threaded tube 2-3-2 enter from both sides of the through hole 1-1 and are then threaded together, so that the first pressing plate 2-3-1-1 and the second pressing plate 2-3-2-1 respectively press the close and synchronously connected portions of the two filter plates 2-2 onto the two sides of the sliding plate 1.

[0028] By setting the limiting shaft 1-3 and the limiting piece 2-2-1 on the filter piece 2-2, the stability of the filter bag 2 after installation is further improved. At the same time, the limiting shaft 1-3 is slidably set on the sliding plate 1, and an elastic component 1-4 is set between the two adjacent limiting shafts 1-3 and the sliding plate 1 to drive the two limiting shafts 1-3 to move toward each other. Finally, during the movement of the two limiting shafts 1-3 toward each other, the limiting shaft 1-3 pulls the limiting piece 2-2-1 tight. During installation, first, the two compression springs 1-4-1 are inserted into the two ends of the sliding groove 1-5 through the mounting port 1-6. Then, the sliding block 1-3-1 at the lower end of the limiting shaft 1-3 is inserted into the mounting port 1-6 and installed at both ends of the sliding groove 1-5. Subsequently, during the installation of the limiting piece 1-4-2, the wedge block 1-4-3 causes the mounting seat to press against the compression spring 1-4-1, causing the two limiting shafts 1-3 to move in a direction away from each other, so that the two limiting pieces... After the shaft 1-3 is separated, it is convenient to fit the limiting piece 2-2-1. At this time, when the limiting piece 2-2-1 is installed on the limiting shaft 1-3, the limiting shaft 1-3 moves toward the limiting piece 2-2-1 by overcoming the elastic force of the compression spring 1-4-1, so that the limiting piece 2-2-1 can fit onto the limiting shaft 1-3. When the limiting shaft 1-3 is released, the limiting shaft 1-3 pulls the limiting piece 2-2-1 tight under the reset action of the compression spring 1-4-1.

[0029] This specific embodiment is merely an explanation of the present utility model and is not intended to limit the present utility model. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but as long as they are within the scope of the claims of the present utility model, they are protected by patent law.

Claims

1. A filter bag mounting structure for a filter press, comprising a sliding plate (1) having a through hole (1-1) in the middle, and a filter bag (2) mounted on the sliding plate (1), characterized in that: The sliding plate (1) has square limiting grooves (1-2) with a cross-section larger than a semicircle on both sides of its end face edge. The corners of the square limiting grooves (1-2) are rounded. The filter bag (2) includes a connecting cylinder (2-1) for passing through a through hole (1-1) of the sliding plate (1), two filter plates (2-2) disposed at both ends of the connecting cylinder (2-1) and respectively attached to the two end faces of the sliding plate (1), a pressing assembly (2-3) for pressing the two filter plates (2-2) near the connecting cylinder (2-1) onto the sliding plate (1), and a square rubber ring (2-4) disposed at the edge of the filter plate (2-2) with a cross-section larger than a semicircle; the square rubber ring (2-4) is embedded in the square limiting groove (1-2) after deformation.

2. The filter bag installation structure of a filter press according to claim 1, characterized in that: The square rubber ring (2-4) is provided with a flattened extension portion (2-4-1) extending to the end face of the filter portion (2-2) away from the sliding plate (1), and the edge of the filter portion (2-2) is joined inside the square rubber ring (2-4).

3. The filter bag installation structure of a filter press according to claim 1, characterized in that: The pressing assembly (2-3) includes an internally threaded tube (2-3-1) with a first pressing plate (2-3-1-1) and an externally threaded tube (2-3-2) with a second pressing plate (2-3-2-1). The internally threaded tube (2-3-1) and the externally threaded tube (2-3-2) are threaded together after entering from both sides of the through hole (1-1). The first pressing plate (2-3-1-1) and the second pressing plate (2-3-2-1) respectively press the two filter parts (2-2) close to the synchronous connection part on the two sides of the sliding plate (1).

4. The filter bag installation structure of a filter press according to claim 1, characterized in that: Two limiting shafts (1-3) are slidably connected to both ends of each side of the sliding plate (1). An elastic component (1-4) is provided between the two adjacent limiting shafts (1-3) and the sliding plate (1) to drive the two limiting shafts (1-3) to move toward each other. A limiting piece (2-2-1) is provided at the corner of the filter part (2-2) for fitting onto the limiting shafts (1-3). During the movement of the two limiting shafts (1-3) toward each other, the limiting shafts (1-3) tighten the limiting piece (2-2-1).

5. The filter bag installation structure of a filter press according to claim 4, characterized in that: The sliding plate (1) has a sliding groove (1-5) with a "convex" shaped cross section at the corner of its periphery. The sliding groove (1-5) has an installation port (1-6) in the middle. The lower end of the limiting shaft (1-3) has a sliding block (1-3-1) that is slidably connected to the sliding groove (1-5) after being inserted from the installation port (1-6). The two sliding blocks (1-3-1) are provided with guide slopes (1-3-2) on their close end faces. The elastic component (1-4) includes two compression springs (1-4-1) that are embedded in the sliding groove (1-5) after compression and are located at both ends of the sliding groove (1-5), a limiting piece (1-4-2) that is provided at the mounting port (1-6) to prevent the sliding block (1-3-1) from falling off, a wedge block (1-4-3) that is provided on the limiting piece (1-4-2) and drives the two sliding blocks (1-3-1) to move after overcoming the elastic force of the compression springs (1-4-1) during installation, and a fixing screw (1-4-4) that is provided between the limiting piece (1-4-2) and the sliding plate (1).

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