A filter press with quick change filter plate

Abstract

The utility model relates to filter press maintenance technical field, concretely is a kind of filter press of quick replacement filter plate, including rack, thrust plate, hydraulic cylinder, compression plate and several filter plates. Rack top is equipped with the clamping device of sliding connection, and through spring clamp and filter plate detachable connection, rack both sides are equipped with limit plate, and its guide slot and spring limit piece on filter plate sliding fit, and the lower part of limit plate is equipped with the rectangular through-hole of tristylous movable block, and movable block covers rubber buffer layer. The utility model realizes filter plate accurate positioning through the universal ball bearing and sliding slot structure of spring limit piece, and the quick dismounting of filter plate can be realized using the sliding setting of clamping device and the cooperation of supporting plate, the problem of filter plate sticking, low replacement efficiency is effectively solved using movable block, and manual operation intensity is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of filter press maintenance, and specifically relates to a filter press for quickly replacing filter plates. Background Art

[0002] In industrial production, as an important solid-liquid separation device, the filter press is widely used in the fields of chemical industry, pharmacy, food processing, etc. After the filtration work of the existing plate-frame filter press is completed, the filter plates are prone to adhesion after high-pressure work, and manual prying is required one by one during separation, resulting in low separation efficiency. At the same time, since the filter plates are placed on the main beam of the filter press through the handles on both sides and the separated filter plates are relatively heavy, in order to avoid damage to the filter plates caused by falling during removal, two people need to cooperate during removal or a lifting device is used to lift the filter plates upward through the filter plate handles, which is time-consuming and laborious. Therefore, it is necessary to develop a filter press that can achieve quick removal and replacement of filter plates and is easy to operate. Content of the Utility Model

[0003] In view of the above technical problems, the utility model provides a filter press for quickly replacing filter plates that can achieve quick removal and replacement of filter plates and is easy to operate, so as to solve the problem of inconvenient separation and replacement of the existing plate-frame filter press.

[0004] To solve the above technical problems, a filter press for quickly replacing filter plates according to the utility model includes a frame. One end of the frame is fixedly connected with a thrust plate, and the outside of the other side of the frame is fixedly connected with a hydraulic cylinder. The output end of the hydraulic cylinder penetrates through one side of the frame and is fixedly connected with a pressing plate. A plurality of filter plates are arranged inside the frame. A clamping device is slidably connected below the top of the frame, and the output end of the clamping device is detachably connected with the filter plates. The two sides of the frame are detachably connected with limiting plates. A guiding groove is formed in the middle of the limiting plates. Spring limiters are arranged on both sides of the middle of the filter plates, and the spring limiters are slidably connected with the guiding groove. A plurality of rectangular through holes are formed in the lower part of the limiting plates, and a plurality of movable blocks are slidably arranged in the rectangular through holes. A support plate is connected to the lower part of the frame.

[0005] Further, the spring limiter includes a fixed column, a spring, a telescopic conduit, and a movable cap. One end of the fixed column is fixedly connected to the filter plate, and the spring and the telescopic conduit are fixedly connected between the fixed column and the movable cap. The spring is sleeved outside the telescopic conduit.

[0006] Further, the fixed column is of a hollow structure and is provided with "L"-shaped sliding grooves on both sides. The movable cap is of a hollow structure with an open bottom, and "匚"-shaped handles are fixedly connected to the corresponding positions on both sides of the movable cap. The handles are matched with the sliding grooves and are slidably connected in the sliding grooves.

[0007] Furthermore, the head of the movable cap is provided with universal ball bearings, which are slidably connected within the groove.

[0008] Furthermore, the main body of the movable block is composed of a cuboid and a triangular prism. The cuboid is slidably disposed within the rectangular through hole. One side edge of the triangular prism that does not contact the cuboid is perpendicular to the ground. The two sides of the triangular prism that do not contact the cuboid are covered with a rubber buffer layer.

[0009] Furthermore, the clamping device includes a fixed plate, with a plurality of spring clamps connected to the lower end of the fixed plate. The output ends of the plurality of spring clamps are clamped on the top of the filter plate. Slider blocks are fixedly connected to both sides of the upper end of the fixed plate. Slide rails matching the sliders are fixedly connected to the corresponding positions on both sides below the top of the frame. The sliders are slidably disposed within the slide rails.

[0010] Furthermore, the tray has several grooves that match the filter plate.

[0011] This utility model has the following advantages compared with the prior art:

[0012] This invention changes the connection method between the filter plate and the frame by using a clamping device that slides on the top of the frame. Through cooperation with the support plate, it enables quick assembly and disassembly of the filter plate and reliable support, avoiding the problem of filter plate damage caused by falling during manual operation due to excessive weight. By using movable blocks with triangular prism heads that are equally spaced at the adhesion positions of the filter plates, the blocks are knocked into the two adjacent adhered filter plates when separating them. The inclined structure at the front end of the triangular prism generates local high pressure stress at the adhesion interface, enabling rapid separation of adjacent adhered filter plates. This avoids the problems of complicated manual prying and low separation efficiency of filter plates after the filter press operation. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model.

[0014] Figure 2 This is a schematic diagram of the filter plate structure of this utility model.

[0015] Figure 3 This is a schematic diagram of the spring limiting component of this utility model.

[0016] Figure 4 This is a schematic diagram of the movable block structure of this utility model.

[0017] In the diagram: 1. Frame, 2. Thrust plate, 3. Hydraulic cylinder, 4. Pressure plate, 5. Filter plate, 6. Clamping device, 7. Limiting plate, 8. Movable block, 9. Support plate, 10. Spring limiting component, 10a. Fixed column, 10b. Spring, 10c. Telescopic guide tube, 10d. Movable cap, 11. Universal ball bearing. Detailed Implementation

[0018] The present invention will be further described below with reference to the accompanying drawings.

[0019] like Figure 1 , Figure 2 , Figure 3 , Figure 4 The filter press shown includes a frame 1, with a thrust plate 2 fixedly connected to one end of the frame 1, and a hydraulic cylinder 3 fixedly connected to the outside of the other side of the frame 1. A clamping plate 4 is fixedly connected to the output end of the hydraulic cylinder 3 through one side of the frame 1. Several filter plates 5 are arranged inside the frame 1. A clamping device 6 is slidably connected to the bottom of the top of the frame 1, and the output end of the clamping device 6 is detachably connected to the filter plates 5. In this embodiment, to avoid the clamping device 6 affecting the filtration effect, a horizontal plate with a width smaller than the top width of the filter plate 5 can be fixedly connected to the top of the filter plate 5 by bolts, so that the clamping device clamps the horizontal plate. The frame 1 is connected to the other side of the frame 1 by... The bolts are detachably connected to the limiting plate 7. To ensure that each filter plate 5 can be reliably aligned and to ensure the filtration effect, the limiting plate 7 has a guide groove in the middle. Spring limiting parts 10 are provided on both sides of the middle of the filter plate 5. The spring limiting parts 10 are slidably connected to the guide groove. To ensure the long-term use of the device, polytetrachloroethylene wear-resistant strips are embedded in the guide groove. To facilitate the removal of the filter plate 5, several rectangular through holes are provided at the bottom of the limiting plate 7. Several movable blocks 8 are slidably arranged in the rectangular through holes. The position of the movable blocks 8 corresponds to the bonding position of two adjacent filter plates 5 after bonding. To facilitate the removal of the filter plate 5, a support plate 9 is connected to the bottom of the frame 1.

[0020] To ensure easy retraction of the spring limiting component 10 and facilitate quick positioning and removal of the filter plate 5, the spring limiting component 10 includes a fixed post 10a, a spring 10b, a telescopic guide tube 10c, and a movable cap 10d. One end of the fixed post 10a is fixedly connected to the filter plate 5. The spring 10b and the telescopic guide tube 10c are fixedly connected between the fixed post 10a and the movable cap 10d, with the spring 10b sleeved on the outside of the telescopic guide tube 10c. The fixed post 10a is a hollow structure with "L"-shaped grooves on both sides. The movable cap 10d is a hollow structure with an open bottom and "U"-shaped handles fixedly connected to both sides at positions corresponding to the grooves. The handles match the grooves and are slidably connected within them. If filter plate 5 needs to be replaced, press the movable cap 10d vertically back to the horizontal side of the slide groove using the handle, and twist the movable cap 10d until the handle is engaged in the horizontal side of the slide groove. This will completely disengage the spring limiting member 10 from the limiting plate 7. The above process is repeated in reverse when installing and positioning the replaced filter plate 5. In this embodiment, the telescopic guide tube 10c includes two hollow tubes of different diameters. One end of the larger diameter hollow tube is fixedly connected to the fixed post 10a, and one end of the smaller diameter hollow tube is fixedly connected to the inside of the movable cap 10d. The smaller diameter movable tube is slidably disposed inside the larger diameter hollow tube.

[0021] To avoid excessive wear of the device, the head of the movable cap 10d is provided with universal ball bearings 11, which are slidably connected in the groove.

[0022] To facilitate the rapid removal of the filter plates 5 after filtration, the movable block 8 is composed of a cuboid and a triangular prism. The cuboid portion is slidably positioned within a rectangular through-hole. One side edge of the triangular prism, which does not contact the cuboid, is perpendicular to the ground. The distance between the side edges of two adjacent triangular prisms is equal to the width of the side of the filter plate 5. The two sides of the triangular prism that do not contact the cuboid are covered with a rubber buffer layer. During the operation of the filter press, the side of the movable block 8 closest to the filter plate 5 is completely positioned within the rectangular through-hole to avoid affecting the operation of the filter press. After filtration, the filter plates 5 are pressed and bonded together. The side edge of the triangular prism of the movable block 8 facing the filter plate 5 is aligned with the gap between two adjacent filter plates 5. By tapping the rear end of the movable block 8 with a tool, the front end can be inserted into the gap between the filter plates 5 to achieve rapid separation of the two adjacent filter plates 5.

[0023] To ensure the normal use of the filter plate 5, the clamping device 6 includes a fixed plate, and a number of spring clamps are connected to the lower end of the fixed plate. In this embodiment, the main structure of the spring clamp is A-shaped, including two symmetrically arranged clamps. One clamp has a rotating ear fixedly connected to the middle of both sides, and a rotating hole is opened on the rotating ear. The other clamp has a rotating shaft fixedly connected to the corresponding position on both sides, which matches the rotating hole. A spring is provided in the middle of the two clamps, and the two ends extending from both sides of the spring contact the two clamps respectively. The output ends of the corresponding positions of the spring clamps are clamped on the top of the filter plate 5. A slider is fixedly connected to both sides of the upper end of the fixed plate. A slide rail matching the slider is fixedly connected to the corresponding position on both sides of the lower part of the top of the frame 1. The slider is slidably arranged in the slide rail.

[0024] To ensure the safety of filter plate 5 removal, several grooves are provided on the support plate 9. The width of the grooves matches the width of the bottom surface of the filter plate 5. When removing the filter plate 5, the tilt of the support plate 9 can be manually adjusted to receive the filtered material and the removed filter plate 5, avoiding damage to the filter plate 5 caused by improper operation during the removal process.

[0025] The working process of this embodiment is as follows:

[0026] When installing the filter plates 5, insert the bottom of multiple new filter plates 5 into the groove of the support plate 9 for preparation. Lift the filter plates 5 to align the spring limiter 10 with the guide groove for positioning. Reset the movable cap 10d until the universal ball 11 slides in the guide groove. Hold the filter plates 5 and clamp the top of the filter plates 5 with the spring clamp to fix the filter plates 5. When disassembling the filter plates 5, manually move the cuboid part of the movable block 8 so that its triangular prism side edge aligns with the gap of the filter plates 5. Tap the rear end of the movable block 8 to make it fit. Separate two adjacent filter plates 5 by inserting them into the gap between them. Press the movable cap 10d vertically back to the other end of the handle until it reaches the horizontal side of the slide groove. Twist the movable cap 10d until the handle is engaged in the horizontal side of the slide groove, so that the spring limiter 10 is completely disengaged from the limiter plate 7. After ensuring that the filter plate 5 is aligned with the groove of the bottom support plate 9, hold the filter plate 5 and release the spring clamp to remove the filter plate 5 from the frame. Place it in the support plate 9 for temporary storage. After all the filter plates 5 have been removed, remove the limiter plate 7 and transfer the temporarily stored filter plates 5 away.

Claims

1. A filter press for quick filter plate replacement, comprising a frame (1), a thrust plate (2) fixedly connected to one end of the frame (1), a hydraulic cylinder (3) fixedly connected to the outside of the other side of the frame (1), a clamping plate (4) fixedly connected to the output end of the hydraulic cylinder (3) through one side of the frame (1), and a plurality of filter plates (5) arranged inside the frame (1), characterized in that: A clamping device (6) is slidably connected below the top of the frame (1). The output end of the clamping device (6) is detachably connected to the filter plate (5). Limit plates (7) are detachably connected to both sides of the frame (1). A guiding groove is provided in the middle of the limit plates (7). Spring limit members (10) are provided on both sides of the middle of the filter plate (5). The spring limit members (10) are slidably connected to the guiding groove. A number of rectangular through holes are provided in the lower part of the limit plates (7). A number of movable blocks (8) are slidably arranged in the rectangular through holes. A supporting plate (9) is connected to the lower part of the frame (1). The spring limit member (10) includes a fixed column (10a), a spring (10b), a telescopic conduit (10c), and a movable cap (10d). One end of the fixed column (10a) is fixedly connected to the filter plate (5). The spring (10b) and the telescopic conduit (10c) are fixedly connected between the fixed column (10a) and the movable cap (10d). The spring (10b) is sleeved outside the telescopic conduit (10c). The fixed column (10a) is of a hollow structure and is provided with "L"-shaped sliding grooves on both sides. The movable cap (10d) is of a hollow structure with an open bottom and is fixedly connected with "匚"-shaped handles at the corresponding positions on both sides and the sliding grooves. The handles are matched with the sliding grooves and are slidably connected in the sliding grooves. A universal ball (11) is provided at the head of the movable cap (10d). The universal ball (11) is slidably connected in the sliding groove.

2. The filter press with quick filter plate replacement according to claim 1, characterized in that: The main body of the movable block (8) is composed of a cuboid and a triangular prism. The cuboid part is slidably arranged in the rectangular through hole. A side edge of the triangular prism that does not contact the cuboid is perpendicular to the ground. Rubber buffer layers are coated on both sides of the triangular prism that do not contact the cuboid.

3. The filter press with quick filter plate replacement according to claim 1, characterized in that: The clamping device (6) includes a fixed plate. A number of spring clamps are connected to the lower end of the fixed plate. The output ends of the number of spring clamps clamp the top of the filter plate (5). Sliders are fixedly connected to both sides of the upper end of the fixed plate. Sliding rails matched with the sliders are fixedly connected to the corresponding positions on both sides below the top of the frame (1). The sliders are slidably arranged in the sliding rails.

4. The filter press with quick filter plate replacement according to claim 1, characterized in that: A number of grooves are provided on the supporting plate (9). The grooves are matched with the filter plate (5).

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