A cleaning mechanism for a filter press

Abstract

The utility model relates to filter press technical field, and disclose a kind of cleaning mechanism of filter press, including the collection screen plate of being fixedly connected between the four supporting legs of filter press main body and located below several filter plates, both ends of collection screen plate are fixedly connected with side plate, two supporting legs close to same side plate are a group, the bottom surface of two groups of supporting legs is connected with support plate, moving mechanism is connected between four supporting legs, the output end of moving mechanism is connected with two adaptive components, and the lower end of two adaptive components is connected with two support plates respectively.The cleaning mechanism of this kind of filter press, by adopting the collection screen plate of section V, and setting side plate at its both ends, filter cake when filter plate discharges and solid-liquid mixture produced by backwashing all fall into collection screen plate, liquid can be naturally seeped to the liquid collection box below through screen board aperture, solid residue is retained on the screen plate surface, side plate can prevent solid-liquid mixture from overflowing from both sides, ensure collection effect.

Description

Technical Field

[0001] This utility model relates to the field of filter press technology, specifically a cleaning mechanism for a filter press. Background Technology

[0002] A water sieve filter press is a mechanical device used for solid-liquid separation. It combines the technical principles of "water sieve" and "filtration" to separate solid particles from liquid in a suspension.

[0003] The patent with publication number CN222585671U discloses a filter press, which includes a fixed frame. The top of the fixed frame is provided with two mounting brackets and a sliding groove. The inner walls of the two mounting brackets are provided with a movable mechanism. By setting the movable mechanism, after the filter press is completed, the motor can be started first, and the rotating rod will rotate, thereby driving the cam to rotate and pressing down the movable plate. Since the bottom of the movable plate is provided with a spring, the cam will guide the air pressure block to swing up and down between the filter plates when it rotates. Since the filter press is generally pressed from left to right through the pressure plate, within the same filtration time, the left side of the filter press is generally completed, while the right side of the filter press is still slightly in a molten state. This may cause the filter press to stick to the filter plate. This method can more effectively blow off the filter press and dry the molten filter press at the same time to facilitate its removal.

[0004] However, the aforementioned filter press still has the following problems in actual use: After use, the filter plate surface needs to be backwashed to remove residual adhesive solid residue. However, the wastewater generated during the backwashing process mixes with the detached solid residue again, increasing the difficulty of subsequent solid-liquid separation. Currently, most filter presses lack the function of pre-separating the backwashing products, resulting in inconvenient operation and reduced processing efficiency. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a cleaning mechanism for a filter press, which can perform primary separation of solid and liquid impurities that fall inside the collecting screen.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a cleaning mechanism for a filter press, comprising a collection screen plate fixedly connected between four support legs of the filter press body and located below several filter plates, with side plates fixedly connected to both ends of the collection screen plate, two support legs close to the same side plate forming a group, support plates connected to the bottom surfaces of both groups of support legs, a moving mechanism connected between the four support legs, two adaptive components connected to the output end of the moving mechanism, the lower ends of the two adaptive components respectively connected to the two support plates, and a scraping component for scraping the inner side of the collection screen plate connected between the two adaptive components.

[0007] Furthermore, the moving mechanism includes a lead screw, a motor, and a slide bar. The outer wall of the motor is fixedly connected to the side wall of one of the support legs. The output shaft of the motor is fixedly connected to one end of the lead screw. The lead screw and the slide bar are parallel and are respectively connected to two sets of support legs. The lead screw is rotatably connected to two support legs in the same set. The slide bar is fixedly connected to two support legs in the same set. Two adaptive components are respectively connected to the lead screw and the slide bar.

[0008] Furthermore, the adaptive component includes a moving block, a connecting plate, and a rectangular block. The bottom surface of the connecting plate is slidably connected to the upper surface of the support plate. One side of the upper end of the connecting plate is fixedly connected to one end of the moving block. A rectangular opening is provided inside the upper end of the connecting plate. One end of the rectangular block is slidably connected to the rectangular opening. The other end of the rectangular block extends through the rectangular opening and is connected to one end of the scraping component. Two moving blocks are respectively sleeved on the outside of the lead screw and the slide rod. The first moving block is threadedly connected to the lead screw, and the second moving block is slidably connected to the slide rod.

[0009] Furthermore, a groove is provided on the bottom surface of the connecting plate, and a T-shaped slide rail parallel to the lead screw is fixedly connected to the upper surface of the support plate. The T-shaped slide rail is slidably connected to the groove.

[0010] Furthermore, a spring opening is provided at the lower end of the connecting plate, and a connecting rod is fixedly connected to the bottom surface of the rectangular block. The other end of the connecting rod passes through the spring opening and slides through the connecting plate.

[0011] Furthermore, one end of the connecting rod located inside the spring opening is fixedly connected to a connecting block that is slidably connected to the spring opening, and a tension spring is fixedly connected to the bottom surface of the connecting block. The other end of the tension spring is fixedly connected to the bottom surface of the spring opening.

[0012] Furthermore, the scraping assembly includes a vertical plate and a scraper. The upper sides of the vertical plate are fixedly connected to the ends of two rectangular blocks away from the rectangular openings, respectively. The bottom surface of the vertical plate is fixedly connected to the upper surface of the scraper, and the scraper is slidably connected to the inner wall of the collecting mesh plate.

[0013] Furthermore, the cross-section of the collecting mesh plate is V-shaped, and the sliding distance of the rectangular block within the rectangular opening is not less than the depth of the collecting mesh plate.

[0014] Compared with the prior art, the present invention has the following beneficial effects: The cleaning mechanism of this filter press uses a V-shaped collection screen plate with side plates at both ends. The filter cake and solid-liquid mixture generated during backwashing fall into the collection screen plate during filter plate unloading. The liquid can naturally seep through the screen plate holes to the liquid collection box below, while the solid residue remains on the surface of the screen plate. The side plates prevent the solid-liquid mixture from overflowing from both sides, ensuring the collection effect.

[0015] The cleaning mechanism of this filter press, by setting an adaptive component and a tension spring, the tension spring always applies a downward pulling force to the rectangular block, so that the scraper strip fits tightly against the inner wall of the V-shaped collecting screen. Even if the screen has slight deformation or uneven surface, the scraper strip can adaptively adjust its height to avoid scraping dead corners. The rounded corner design at the bottom of the V-shape further prevents the scraper strip from getting stuck. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall appearance of the present utility model; Figure 2 This is a schematic diagram of the overall appearance of the present invention from another perspective; Figure 3 This is a detailed connection diagram of the side plate and the collecting mesh plate of this utility model; Figure 4 This is a detailed connection diagram of the moving mechanism, adaptive component, and scraping component of this utility model; Figure 5 This utility model Figure 4 Enlarged view of point A in the middle; Figure 6 This utility model Figure 4 Enlarged diagram of point B in the middle.

[0017] In the diagram: 1. Filter press body; 2. Filter plate; 3. Support leg; 4. Side plate; 5. Collecting screen plate; 6. Vertical plate; 7. Scraper bar; 8. Lead screw; 9. Moving block; 10. Connecting plate; 11. T-shaped slide rail; 12. Motor; 13. Rectangular block; 14. Rectangular opening; 15. Spring opening; 16. Tension spring; 17. Connecting rod; 18. Connecting block; 19. Slide groove; 20. Support plate; 21. Slide rod. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0019] Please see Figures 1 to 6 A cleaning mechanism for a filter press includes a collection screen plate 5 fixedly connected between four support legs 3 of the filter press body 1 and located below several filter plates 2. Both ends of the collection screen plate 5 are fixedly connected to side plates 4. Two support legs 3 close to the same side plate 4 form a group. The bottom surfaces of the two groups of support legs 3 are connected to support plates 20. A moving mechanism is connected between the four support legs 3. The output end of the moving mechanism is connected to two adaptive components. The lower ends of the two adaptive components are respectively connected to the two support plates 20. A scraping component for scraping the inner side of the collection screen plate 5 is connected between the two adaptive components.

[0020] like Figures 1 to 6 As shown, when the cleaning mechanism of the filter press in this utility model is in use, the filter press body 1 first separates the filter plates 2 according to its own conventional steps. Then the filter cake between the adjacent filter plates 2 will fall naturally onto the collection screen plate 5 due to gravity. After falling, there will still be a small amount of residue left on the filter plates 2. At this time, the filter plates 2 can be rinsed by the backwashing mechanism of the filter press body 1 itself. The solid-liquid mixture after rinsing will also fall into the collection screen plate 5. When the filter plate 2 is opened, the moving mechanism is activated simultaneously. The output end of the moving mechanism moves two adaptive components, which in turn move the scraping components inside the collecting screen plate 5. This pushes the solid residue inside the collecting screen plate 5 off from both sides of the collecting screen plate 5. Before this, it is only necessary to set up special solid residue collection boxes on both sides of the collecting screen plate 5 and a liquid collection box below the collecting screen plate 5 to separate the solid and liquid. The filter cake shaken off in the early stage and the solid-liquid mixture after rinsing in the later stage can both be processed by the scraping components.

[0021] It should be noted that the filter press body 1, filter plate 2, and support leg 3 are all mature technologies in existing filter presses. The current filter press body 1 usually also includes, but is not limited to: a pressing mechanism, a filtration unit (usually using filter cloth), a feed pump (usually using a plunger pump or screw pump), a PLC control and unloading mechanism, and a chain / belt driven trolley or conveyor belt. In this utility model, only the disclosed structure is partially improved. Structures not mentioned, such as the pressing mechanism and filtration unit, are not modified in any way and retain their original functions and effects.

[0022] As a preferred embodiment of this utility model, the moving mechanism includes a lead screw 8, a motor 12, and a slide bar 21. The outer wall of the motor 12 is fixedly connected to the side wall of one of the support legs 3. The output shaft of the motor 12 is fixedly connected to one end of the lead screw 8. The lead screw 8 and the slide bar 21 are parallel and are respectively connected to two sets of support legs 3. The lead screw 8 is rotatably connected to two support legs 3 in the same set. The slide bar 21 is fixedly connected to two support legs 3 in the same set. Two adaptive components are respectively connected to the lead screw 8 and the slide bar 21.

[0023] More specifically, when it is necessary to treat the solid residue inside the collection screen plate 5, simply turn on the motor 12. The output shaft of the motor 12 drives the lead screw 8 to rotate. After the lead screw 8 rotates, it works in conjunction with the slide bar 21, and through the scraping component and the adaptive component, it can move the scraping component laterally in sync. This allows the solid residue accumulated inside the collection screen plate 5 to fall off from both sides of the collection screen plate 5, while the sewage will be exposed through the mesh of the collection screen plate 5, thus achieving primary solid-liquid separation.

[0024] As a preferred embodiment of this utility model, the adaptive component includes a movable block 9, a connecting plate 10, and a rectangular block 13. The bottom surface of the connecting plate 10 is slidably connected to the upper surface of the support plate 20. One side of the upper end of the connecting plate 10 is fixedly connected to one end of the movable block 9. A rectangular opening 14 is provided inside the upper end of the connecting plate 10. One end of the rectangular block 13 is slidably connected to the rectangular opening 14. The other end of the rectangular block 13 extends through to the outside of the rectangular opening 14 and is connected to one end of the scraping component. Two movable blocks 9 are respectively sleeved on the outside of the lead screw 8 and the slide rod 21. The first movable block 9 is threadedly connected to the lead screw 8, and the second movable block 9 is slidably connected to the slide rod 21.

[0025] More specifically, when the lead screw 8 rotates, the moving block 9 will not rotate on its own because the scraping component is connected in the middle and the bottom of the connecting plate 10 is also lower than the surface of the support plate 20. Instead, the moving block 9 will only move laterally along the lead screw 8. As the moving block 9 moves, it will also move laterally along with the connecting plate 10 and the rectangular block 13, thereby causing the scraping component connected to the other end of the rectangular block 13 to move.

[0026] As a preferred embodiment of this utility model, the bottom surface of the connecting plate 10 is provided with a sliding groove 19, and the upper surface of the support plate 20 is fixedly connected with a T-shaped slide rail 11 parallel to the lead screw 8, and the T-shaped slide rail 11 is slidably connected to the sliding groove 19.

[0027] More specifically, by setting the slide groove 19 and the T-shaped slide rail 11, it can be ensured that the connecting plate 10 slides on the surface of the support plate 20 without causing the connecting plate 10 to detach from the support plate 20.

[0028] As a preferred embodiment of this utility model, the lower end of the connecting plate 10 is provided with a spring opening 15, and the bottom surface of the rectangular block 13 is fixedly connected with a connecting rod 17. The other end of the connecting rod 17 passes through the spring opening 15 and is slidably connected to the through point of the connecting plate 10.

[0029] More specifically, by setting the spring opening 15 and the connecting rod 17, it can be ensured that when the scraping assembly moves along the surface of the collecting mesh plate 5, the rectangular block 13 can only move in a specific up and down direction, without shifting left or right or forward and backward.

[0030] As a preferred embodiment of this utility model, one end of the connecting rod 17 located inside the spring opening 15 is fixedly connected to a connecting block 18 that is slidably connected to the spring opening 15, and a tension spring 16 is fixedly connected to the bottom surface of the connecting block 18. The other end of the tension spring 16 is fixedly connected to the bottom surface of the spring opening 15.

[0031] More specifically, by setting the connecting block 18 and the tension spring 16, a downward pulling force can always be applied to the rectangular block 13, thereby increasing the degree to which the bottom of the scraping assembly adheres to the surface of the collecting mesh plate 5 and improving the cleaning effect.

[0032] As a preferred embodiment of this utility model, the scraping assembly includes a vertical plate 6 and a scraper 7. The two sides of the upper end of the vertical plate 6 are respectively fixedly connected to the ends of two rectangular blocks 13 away from the rectangular opening 14. The bottom surface of the vertical plate 6 is fixedly connected to the upper surface of the scraper 7. The scraper 7 is slidably connected to the inner sidewall of the collecting mesh plate 5.

[0033] More specifically, when the lead screw 8 rotates, the moving block 9 is displaced, and then the connecting plate 10 and the rectangular block 13 are displaced. Subsequently, the vertical plate 6 and the scraper 7 connected to the rectangular block 13 can move together. During the movement of the vertical plate 6, the scraper 7 can scrape the surface of the collecting screen plate 5, pushing the fallen solids off from both sides of the collecting screen plate 5. It should be noted that the connection between the scraper 7 and the vertical plate 6 can be made by bolts or other means, which facilitates the replacement of the scraper 7 later.

[0034] As a preferred embodiment of this utility model, the cross-section of the collecting mesh plate 5 is V-shaped, and the sliding distance of the rectangular block 13 within the rectangular opening 14 is not less than the depth of the collecting mesh plate 5.

[0035] More specifically, by setting the collection screen 5 in a V-shape, the probability of flushing wastewater flowing out from both sides of the collection screen 5 during flushing can be reduced. It should be noted here that: Figure 2 and Figure 3 As shown, the V-shaped rounded corners at the bottom of the collecting screen 5 will prevent the scraper 7 from getting stuck.

[0036] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A cleaning mechanism for a filter press, comprising a collecting screen (5) fixedly connected between four support legs (3) of the filter press body (1) and located below a plurality of filter plates (2), characterized in that: Both ends of the collecting mesh plate (5) are fixedly connected to side plates (4). Two support legs (3) close to the same side plate (4) form a group. The bottom surfaces of the two groups of support legs (3) are connected to support plates (20). A moving mechanism is connected between the four support legs (3). The output end of the moving mechanism is connected to two adaptive components. The lower ends of the two adaptive components are respectively connected to the two support plates (20). A scraping component for scraping the inner side of the collecting mesh plate (5) is connected between the two adaptive components.

2. The cleaning mechanism for a filter press according to claim 1, characterized in that: The moving mechanism includes a lead screw (8), a motor (12), and a slide bar (21). The outer wall of the motor (12) is fixedly connected to the side wall of one of the support legs (3). The output shaft of the motor (12) is fixedly connected to one end of the lead screw (8). The lead screw (8) and the slide bar (21) are parallel and are respectively connected to two sets of support legs (3). The lead screw (8) is rotatably connected to two support legs (3) in the same set. The slide bar (21) is fixedly connected to two support legs (3) in the same set. The two adaptive components are respectively connected to the lead screw (8) and the slide bar (21).

3. The cleaning mechanism for a filter press according to claim 2, characterized in that: The adaptive component includes a moving block (9), a connecting plate (10), and a rectangular block (13). The bottom surface of the connecting plate (10) is slidably connected to the upper surface of the support plate (20). One side of the upper end of the connecting plate (10) is fixedly connected to one end of the moving block (9). A rectangular opening (14) is provided inside the upper end of the connecting plate (10). One end of the rectangular block (13) is slidably connected to the rectangular opening (14). The other end of the rectangular block (13) extends through to the outside of the rectangular opening (14) and is connected to one end of the scraping component. The two moving blocks (9) are respectively sleeved on the outside of the lead screw (8) and the slide rod (21). The first moving block (9) is threadedly connected to the lead screw (8), and the second moving block (9) is slidably connected to the slide rod (21).

4. The cleaning mechanism for a filter press according to claim 3, characterized in that: The bottom surface of the connecting plate (10) is provided with a sliding groove (19), and the upper surface of the support plate (20) is fixedly connected with a T-shaped slide rail (11) parallel to the lead screw (8), and the T-shaped slide rail (11) is slidably connected to the sliding groove (19).

5. The cleaning mechanism for a filter press according to claim 4, characterized in that: The lower end of the connecting plate (10) is provided with a spring opening (15), and the bottom surface of the rectangular block (13) is fixedly connected with a connecting rod (17). The other end of the connecting rod (17) passes through the spring opening (15) and is slidably connected to the through point of the connecting plate (10).

6. The cleaning mechanism for a filter press according to claim 5, characterized in that: One end of the connecting rod (17) located inside the spring opening (15) is fixedly connected to a connecting block (18) that is slidably connected to the spring opening (15). A tension spring (16) is fixedly connected to the bottom surface of the connecting block (18), and the other end of the tension spring (16) is fixedly connected to the bottom surface of the spring opening (15).

7. The cleaning mechanism for a filter press according to claim 6, characterized in that: The scraping assembly includes a vertical plate (6) and a scraper (7). The two sides of the upper end of the vertical plate (6) are fixedly connected to the ends of two rectangular blocks (13) away from the rectangular opening (14). The bottom surface of the vertical plate (6) is fixedly connected to the upper surface of the scraper (7). The scraper (7) is slidably connected to the inner wall of the collecting mesh plate (5).

8. The cleaning mechanism for a filter press according to claim 7, characterized in that: The cross-section of the collecting mesh plate (5) is V-shaped, and the sliding distance of the rectangular block (13) within the rectangular opening (14) is not less than the depth of the collecting mesh plate (5).

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