Drum-type rotating wheel filter

Abstract

The utility model belongs to the field of filters, particularly relates to a drum-type rotary wheel filter, and aims to solve the problems that the distance between an existing scraper and a rotary drum is small, so that the rotary drum is easily damaged, the distance between the scraper and the rotary drum is large, filter residues are inconvenient to intercept, and the distance between the scraper and the rotary drum cannot be well adjusted. In order to solve the problems that in the prior art, due to the fact that a scraper is used for a long time, filter residues are prone to being attached to the scraper, and later filter residue discharging is blocked, the following scheme is provided, the device comprises a rotating cylinder and a box body, the rotating cylinder is rotationally arranged at the top of the box body, and the front side of the box body is fixedly connected with a front plate; the top of the front plate is slidably provided with a scraper used for intercepting filter residues filtered out of the rotary drum, the distance between the scraper and the rotary drum can be conveniently adjusted, different filtering requirements are met, the filter residues are effectively prevented from being attached to the surface of the scraper, the intercepting effect of the scraper is guaranteed, and the filtering efficiency is improved; and noise can be reduced in the beating process.

Description

Technical Field

[0001] This utility model relates to the field of filter technology, and in particular to a drum-type rotary filter. Background Technology

[0002] A rotary drum filter (also known as a drum microfilter) is a continuous filtration device that uses the rotation of a drum in conjunction with a filter screen (or filter cloth) to achieve solid-liquid separation. It is widely used in food, chemical, and environmental protection industries. The filter immerses the drum part in the filter slurry inside the chamber. The vacuum system creates negative pressure inside the filter screen, allowing the liquid to pass through and be discharged, while solid particles are trapped. The trapped filter residue rotates to the top of the drum and is peeled off by a scraper or washed with backwash water. The impurities fall into the drain tank and are discharged.

[0003] However, existing filters have several problems: the small gap between the scraper and the rotating drum can easily damage the drum, while a large gap makes it difficult to trap filter cake. The gap between the two cannot be adjusted well, and filter cake tends to adhere to the scraper after prolonged use, which can obstruct the discharge of filter cake later. Utility Model Content

[0004] The purpose of this utility model is to solve the problems of existing technology, such as the small gap between the scraper and the rotating drum, which easily damages the rotating drum, and the large gap between the two, which makes it inconvenient to retain the filter cake. The gap between the two cannot be adjusted well, and the filter cake tends to adhere to the scraper after long-term use, which will block the discharge of the filter cake in the later stage. The proposed invention is a drum-type rotary filter.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A rotary drum filter includes a rotating drum and a housing. The rotating drum is rotatably mounted on the top of the housing. A front plate is fixedly connected to the front side of the housing. A scraper for trapping filter residue filtered from the rotating drum is slidably mounted on the top of the front plate. Baffles are provided on both sides of the top of the scraper. Stable support frames are fixedly connected to both sides of the bottom of the front plate and the front side of the housing. Adjustment mechanisms are provided on both sides of the scraper to facilitate adjustment of the distance between the scraper and the rotating drum. A knocking mechanism is provided on the front side of the housing to prevent filter residue from adhering to the scraper surface.

[0007] In one possible design, the adjustment mechanism includes two first connecting plates, a lead screw, a first moving block, two top blocks, a scale line, two second connecting plates, a slide rod, and a second moving block. One side of each of the two first connecting plates is fixedly connected to both sides of the same front plate. The two ends of the lead screw are rotatably connected to the adjacent sides of the two first connecting plates via bearings. One end of the lead screw is fixedly connected to a rotating column, and one end of the rotating column rotatably passes through one side of the first connecting plate and is fixedly connected to a rotating handle. The first moving block is threaded onto the lead screw, and its top is fixedly connected to the bottom of the top block. One side of each of the two second connecting plates is fixedly connected to both sides of the other side of the same front plate. The two ends of the slide rod are fixedly connected to the adjacent sides of the two second connecting plates. The second moving block is slidably fitted onto the slide rod, and its top is fixedly connected to the bottom of another top block. The adjacent sides of the two top blocks are fixedly connected to both sides of the same scraper. The scale line is located on one side of the support frame and directly below the first moving block.

[0008] In one possible design, the striking mechanism includes a front block, three striking posts, a reciprocating screw, two No. 1 plates, a motor, two positioning posts, two No. 2 plates, and two sliding grooves. One side of the front block is connected to the front side of the housing and is located directly below the front plate. One end of each of the three striking posts is fixedly connected to the top of the same front block with equal spacing. The other end of each of the three striking posts slides through the bottom of the same front plate and is located directly below the scraper. One side of each of the two No. 1 plates is fixedly connected to the front side of the same housing and is located above and below the front block, respectively. The outer wall of the reciprocating screw is fitted with... A slider is provided that mates with the helical groove of the reciprocating lead screw. The slider is fixedly connected to the front block. The two ends of the reciprocating lead screw are rotatably connected to the sides of the two No. 1 plates respectively via bearings. The two ends of the positioning post are fixedly connected to the sides of the two No. 2 plates respectively. One side of each of the two No. 2 plates is fixedly connected to the front side of the same housing and is located above and below the front block respectively. The front block is slidably fitted onto the positioning post. The two slide grooves are both located on the front side of the same housing. Sliding blocks that are adapted to the slide grooves are fixedly connected to both sides of the rear side of the front block. The two sliding blocks are slidably connected to the two slide grooves respectively.

[0009] In one possible design, the tops of the three striking posts are each fixedly fitted with rubber pads for reducing noise and minimizing impact damage, and the three rubber pads are located between the scraper and the front panel.

[0010] In one possible design, threaded holes for fixing the first and second moving blocks are provided on the opposite sides of the first and second moving blocks. Fixed posts are threadedly connected to the inner walls of the two threaded holes. One end of the two fixed posts is tightly attached to the outer side of the lead screw and the outer side of the slide rod, respectively. A rotating handle is fixedly connected to the other end of the two fixed posts.

[0011] In one possible design, side plates for shielding the lead screw and slide bar are fixedly connected to the opposite sides of the two baffles.

[0012] In this application, when using this rotary drum filter, the drum rotates at the top of the housing to filter the liquid. The filtered residue is trapped by a scraper. When it is necessary to adjust the distance between the scraper and the drum, the operator can rotate the rotating handle of the screw to move the first moving block on the screw, which in turn moves the second moving block on the slide rod, thereby adjusting the position of the scraper. During the adjustment process, by setting scale lines, the operator can accurately adjust the distance between the scraper and the drum according to the scale lines to meet different filtration needs, improving the applicability and filtration effect of the filter. The first and second moving blocks are... The fixed column located away from one side allows for easy fixing and loosening of the moving block, ensuring the stable position of the scraper after the spacing is adjusted. This prevents movement due to vibrations or other factors during equipment operation, guaranteeing the normal operation of the filter. When the scraper traps filter residue on the outside of the rotating drum, to prevent residue from adhering to the scraper surface, the controller controls the motor to drive the reciprocating screw to rotate, causing the front block to reciprocate on the reciprocating screw and positioning column. The reciprocating motion of the front block drives three striking columns and rubber pads to strike the scraper, thus preventing filter residue from adhering to the scraper surface during trapping and facilitating its discharge through the sludge drain.

[0013] The beneficial effects of this utility model are as follows:

[0014] In this invention, the adjustment mechanism allows for convenient adjustment of the distance between the scraper and the rotating drum to meet different filtration needs, thereby improving the applicability and filtration effect of the filter. The striking mechanism, through the reciprocating screw driving the front block to reciprocate, causes the striking column and rubber pad to strike the scraper, effectively preventing filter residue from adhering to the scraper surface, ensuring the scraper's retention effect, and improving filtration efficiency. The rubber pad at the top of the striking column reduces noise generation during the striking process, while also reducing collision damage between the striking column and the scraper, extending the service life of the equipment. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the structure of this utility model;

[0017] Figure 3 This is a schematic diagram of the structure of this utility model;

[0018] Figure 4 This is a schematic diagram of the structure of this utility model.

[0019] In the diagram: 1. Rotary drum; 2. Box body; 3. Scraper; 4. Front plate; 5. Baffle; 6. Side plate; 7. Support frame; 8. Scale line; 9. Slide groove; 10. Moving block No. 1; 11. Connecting plate No. 1; 12. Lead screw; 13. Fixed column; 14. Top block; 15. Connecting plate No. 2; 16. Moving block No. 2; 17. Slide rod; 18. Rubber pad; 19. Striking column; 20. Front block; 21. Reciprocating lead screw; 22. Plate No. 1; 23. Motor; 24. Positioning column; 25. Plate No. 2. Detailed Implementation

[0020] 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.

[0021] Example 1

[0022] Reference Figures 1-4 The filter includes a rotating drum 1, a housing 2, a scraper 3, a front plate 4, a baffle 5, a support frame 7, an adjustment mechanism, and a striking mechanism. The rotating drum 1 is rotatably mounted on the top of the housing 2 and driven by an external device. The front plate 4 is fixedly connected to the front side of the housing 2. The scraper 3 is slidably mounted on the top of the front plate 4 to intercept the filter residue filtered from the rotating drum 1. The baffle 5 is located on both sides of the top of the scraper 3. The support frame 7 is fixedly connected to both sides of the bottom of the front plate 4 and the front side of the housing 2 to provide stable support. The adjustment mechanism is located on both sides of the scraper 3 to adjust the distance between the scraper 3 and the rotating drum 1. The striking mechanism is located on the front side of the housing 2 to prevent filter residue from adhering to the surface of the scraper 3.

[0023] The adjustment mechanism includes two No. 1 connecting plates 11, a lead screw 12, a No. 1 moving block 10, two top blocks 14, a scale line 8, two No. 2 connecting plates 15, a slide rod 17, and a No. 2 moving block 16. One side of each of the two No. 1 connecting plates 11 is fixedly connected to both sides of the same front plate 4. Both ends of the lead screw 12 are rotatably connected to the adjacent sides of the two No. 1 connecting plates 11 via bearings. A rotating column is fixedly connected to one end of the lead screw 12, and one end of the rotating column rotatably passes through one side of the No. 1 connecting plate 11 and is fixedly connected to a rotating handle, facilitating the operator to rotate the lead screw 12. The No. 1 moving block 10 is threaded onto the lead screw 12 and slidably connected to the front plate 4, and its top is flush with the front plate 4. The bottom of the top block 14 is fixedly connected, and one side of each of the two second connecting plates 15 is fixedly connected to the other two sides of the same front plate 4. The two ends of the slide rod 17 are fixedly connected to the sides of the two second connecting plates 15 that are close to each other. The second moving block 16 is slidably sleeved on the slide rod 17 and slidably set on the front plate 4, and its top is fixedly connected to the bottom of another top block 14. The sides of the two top blocks 14 that are close to each other are fixedly connected to the two sides of the same scraper 3, thereby realizing the connection between the scraper 3 and the adjustment mechanism. The scale line 8 is set on one side of the support frame 7 and located directly below the first moving block 10, which makes it easy for the operator to accurately adjust the distance between the scraper 3 and the rotating drum 1.

[0024] The striking mechanism includes a front block 20, three striking posts 19, a reciprocating screw 21, two first plates 22, a motor 23, two positioning posts 24, two second plates 25, and two sliding grooves 9. One side of the front block 20 is connected to the front side of the housing 2 and is located directly below the front plate 4. One end of each of the three striking posts 19 is fixedly connected to the top of the same front block 20 with equal spacing. The other ends of each of the three striking posts 19 slide through the bottom of the same front plate 4 and are located directly below the scraper 3. To reduce noise and collision damage, rubber pads 18 are fixedly installed at the top of each of the three striking posts 19. The three rubber pads 18 are located between the scraper 3 and the front plate 4. One side of each of the two first plates 22 is fixedly connected to the front side of the same housing 2 and is located above and below the front block 20, respectively. The outer wall of the reciprocating screw 21 is fitted with a slider that mates with the spiral groove of the reciprocating screw 21. The slider is fixedly connected to the front block 20. The two ends of 1 are rotatably connected to the sides of the two No. 1 plates 22 near each other via bearings. The motor 23 is fixedly connected to one side of one of the No. 1 plates 22, and its output shaft is fixedly connected to one end of the reciprocating screw 21 to drive the reciprocating screw 21 to rotate. The reciprocating screw 21 drives the front block 20 to reciprocate, thereby driving the three striking columns 19 to strike the scraper 3. The two ends of the positioning column 24 are fixedly connected to the sides of the two No. 2 plates 25 near each other. One side of each of the two No. 2 plates 25 is fixedly connected to the front side of the same housing 2 and is located above and below the front block 20 respectively. The front block 20 is slidably sleeved on the positioning column 24 to ensure the stable movement of the front block 20. The two sliding grooves 9 are both set on the front side of the same housing 2. The two rear sides of the front block 20 are fixedly connected with sliding blocks that are adapted to the sliding grooves 9. The two sliding blocks are slidably connected to the two sliding grooves 9 respectively, further improving the stability of the reciprocating movement of the front block 20.

[0025] This application can be used in the field of filtration machines, or in other fields applicable to this application.

[0026] Example 2

[0027] refer to Figures 1-4 An improvement upon Example 1, the rotary drum filter includes:

[0028] To fix the positions of the first moving block 10 and the second moving block 16, threaded holes are provided on the opposite sides of the first moving block 10 and the second moving block 16. Fixed posts 13 are threadedly connected to the inner walls of the two threaded holes. One end of the two fixed posts 13 is tightly attached to the outer side of the lead screw 12 and the outer side of the slide bar 17, respectively. The other end of the two fixed posts 13 is fixedly connected to a rotating handle, which makes it easy for the operator to fix and loosen the moving blocks.

[0029] In addition, side plates 6 are fixedly connected to the two baffles 5 on the opposite sides to shield the lead screw 12 and slide bar 17, preventing debris from entering and affecting the normal operation of the mechanism.

[0030] However, as is well known to those skilled in the art, the working principle and wiring method of motor 23 are commonplace and are all conventional methods or common knowledge, so they will not be described in detail here. Those skilled in the art can make any selection according to their needs or convenience. Motor 23 is connected to the controller on the front side of the housing 2 through a line and is powered by an external power source.

[0031] The accompanying drawings in this application are for illustrative purposes only. The dimensions and shapes of the components shown are not actual limitations but are merely schematic representations. In actual implementation, the components can be reasonably configured and adjusted according to specific needs and actual conditions.

[0032] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A drum-type rotary filter, characterized in that, The device includes a rotating drum (1) and a housing (2). The rotating drum (1) is rotatably mounted on the top of the housing (2). A front plate (4) is fixedly connected to the front side of the housing (2). A scraper (3) for intercepting the filter residue filtered from the rotating drum (1) is slidably mounted on the top of the front plate (4). Baffles (5) are provided on both sides of the top of the scraper (3). Support frames (7) for stability are fixedly connected to both sides of the bottom of the front plate (4) and the front side of the housing (2). Adjustment mechanisms are provided on both sides of the scraper (3) to facilitate the adjustment of the distance between the scraper (3) and the rotating drum (1). A knocking mechanism is provided on the front side of the housing (2) to prevent filter residue from adhering to the surface of the scraper (3).

2. The rotary drum filter according to claim 1, characterized in that, The adjustment mechanism includes two first connecting plates (11), a lead screw (12), a first moving block (10), two top blocks (14), a scale line (8), two second connecting plates (15), a slide rod (17), and a second moving block (16). One side of each of the two first connecting plates (11) is fixedly connected to one side of the same front plate (4). The two ends of the lead screw (12) are rotatably connected to the adjacent sides of the two first connecting plates (11) via bearings. A rotating column is fixedly connected to one end of the lead screw (12), and one end of the rotating column rotatably passes through one side of the first connecting plate (11) and is fixedly connected to a rotating handle. The first moving block (10) The threaded sleeve is fitted on the lead screw (12) and its top is fixedly connected to the bottom of the top block (14). One side of the two second connecting plates (15) is fixedly connected to the other two sides of the same front plate (4). The two ends of the slide rod (17) are fixedly connected to the side of the two second connecting plates (15) that are close to each other. The second moving block (16) is slidably fitted on the slide rod (17) and its top is fixedly connected to the bottom of another top block (14). The side of the two top blocks (14) that are close to each other is fixedly connected to the two sides of the same scraper (3). The scale line (8) is set on one side of the support frame (7) and located directly below the first moving block (10).

3. The rotary drum filter according to claim 1, characterized in that, The striking mechanism includes a front block (20), three striking columns (19), a reciprocating screw (21), two first plates (22), a motor (23), two positioning columns (24), two second plates (25), and two sliding grooves (9). One side of the front block (20) is connected to the front side of the housing (2) and is located directly below the front plate (4). One end of each of the three striking columns (19) is fixedly connected to the top of the same front block (20) with equal spacing. The other end of each of the three striking columns (19) slides through the bottom of the same front plate (4) and is located directly below the scraper (3). One side of each of the two first plates (22) is fixedly connected to the front side of the same housing (2) and is located above and below the front block (20), respectively. The outer wall of the reciprocating screw (21) A slider is fitted with a helical groove that mates with the reciprocating screw (21). The slider is fixedly connected to the front block (20). The two ends of the reciprocating screw (21) are rotatably connected to the sides of the two No. 1 plates (22) respectively via bearings. The two ends of the positioning column (24) are fixedly connected to the sides of the two No. 2 plates (25) respectively. One side of each of the two No. 2 plates (25) is fixedly connected to the front side of the same housing (2) and is located above and below the front block (20) respectively. The front block (20) is slidably fitted on the positioning column (24). The two slide grooves (9) are both set on the front side of the same housing (2). The two rear sides of the front block (20) are fixedly connected with sliding blocks that are adapted to the slide grooves (9). The two sliding blocks are slidably connected to the two slide grooves (9) respectively.

4. The drum-type rotary filter according to claim 3, characterized in that, The top of each of the three striking posts (19) is fixedly provided with a rubber pad (18) for reducing noise and collision damage. The three rubber pads (18) are located between the scraper (3) and the front plate (4).

5. The drum-type rotary filter according to claim 2, characterized in that, The first moving block (10) and the second moving block (16) are provided with threaded holes on the side away from each other for fixing the first moving block (10) and the second moving block (16). The inner walls of the two threaded holes are threaded with fixing posts (13). One end of the two fixing posts (13) is in close contact with the outer side of the lead screw (12) and the outer side of the slide rod (17), respectively. The other end of the two fixing posts (13) is fixedly connected with a rotating handle.

6. The drum-type rotary filter according to claim 1, characterized in that, Each of the two baffles (5) has a side plate (6) fixedly connected to the side away from each other to shield the lead screw (12) and slide bar (17).

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