Disc filter cleaning device

Abstract

The invention relates to the technical field of cleaning devices, and particularly discloses a disc filter cleaning device which comprises a filter tank, a plurality of filter discs arranged in the filter tank, a bracket arranged close to the side edge of the filter tank, a water guide pipe horizontally and rotatably arranged on the bracket, a water supply device connected with the water guide pipe, and a plurality of water spray pipes arranged on the side wall of the water guide pipe, the water spraying holes are formed in the side wall of the water spraying pipe, the first driving device is used for driving the water guide pipe to rotate, and the second driving device is used for driving the water guide pipe to rotate; one water spraying pipe is arranged between one pair of filtering discs; the first driving device and the second driving device drive the water guide pipe to rotate in opposite directions, and the first driving device is used for driving the water spraying pipe to rotate towards the filtering disc. According to the cleaning device for the disc type filter, the filtering disc can be efficiently cleaned, and the blockage of cleaning equipment can be effectively prevented.

Description

Technical Field

[0001] The present invention relates to the technical field of cleaning devices, and in particular to a cleaning device for a disc filter. Background Art

[0002] Disc filters are very commonly used in industrial production for filtering and removing impurities from liquids. Their operating principle is that solid particles are trapped in a filter cloth placed on a vertical disc, while the filtrate is removed by extraction. Over time, fine particles can clog the filter cloth, causing the disc filter to lose capacity. To maintain stable production, the filter cloth must be regularly washed with hot water.

[0003] The existing water washing system is a manufacturer's own. Its main structure consists of a main water pipe installed above the vertical disc, with multiple branch pipes and nozzles attached to the main pipe. The nozzles intermittently spray water to clean the filter discs. However, due to the high solids content of the material during filter operation, it is prone to splashing. Some slurry can splash onto the nozzles and clog them, preventing proper cleaning. This clogging can occur quickly, with the nozzles clogging within a 24-hour filter operation, despite the filter's operating cycle of at least 25 days. Because the filter is an operating machine, cleaning the nozzles requires the machine to be shut down. To ensure stable production, cleaning is generally delayed until the end of the filter cycle, but by then the scabs have hardened and become increasingly difficult to remove. Over time, this water washing system becomes ineffective. Each cleaning also increases maintenance costs and equipment time, indirectly impacting the filter's operating cycle and filtration performance. Therefore, a cleaning device that is both efficient and prevents clogging is needed. Summary of the Invention

[0004] The object of the present invention is to provide a disc filter cleaning device, which can efficiently clean the filter disc and effectively prevent the cleaning device from being blocked.

[0005] The present invention is achieved through the following technical solutions: the disc filter cleaning device of the present invention includes a filter tank, multiple filter discs arranged in the filter tank, a bracket arranged near the side of the filter tank, a water pipe horizontally and rotatably arranged on the bracket, a water supply device connected to the water pipe, multiple water spray pipes arranged on the side walls of the water pipe, water spray holes arranged on the side walls of the water spray pipe, a first driving device for driving the water pipe to rotate, and a second driving device for driving the water pipe to rotate; one of the water spray pipes is arranged between a pair of filter discs; the first driving device and the second driving device drive the water pipe to rotate in opposite directions, and the first driving device is used to drive the water spray pipe to rotate toward the filter disc.

[0006] Furthermore, the first driving device includes a driving wheel rotatably mounted on the bracket, a friction ring rotatably mounted on the water pipe, and a first transmission belt connecting the driving wheel and the friction ring; the driving wheel is used to abut against the outer wall of the filter disc.

[0007] Furthermore, the first driving device further includes a blocking rod horizontally arranged on the bracket, wherein the blocking rod is arranged between the filter tank and the water pipe; the axial direction of the blocking rod is parallel to the axial direction of the water pipe.

[0008] Furthermore, a protrusion is provided on the lower side of one end of the water spray pipe close to the water pipe, and an elliptical block is fixed on the blocking rod, the axial direction of the elliptical block is parallel to the axial direction of the water pipe, and the outer wall of the protrusion abuts against the outer wall of the elliptical block; and it also includes a third driving device for driving the blocking rod to rotate.

[0009] Furthermore, the third driving device includes a driven wheel provided on the blocking rod, and a second transmission belt for connecting the driving wheel and the driven wheel, and the blocking rod is rotatably connected to the bracket.

[0010] Furthermore, the first driving device and the third driving device are both provided in plurality, and the plurality of the first driving devices and the plurality of the third driving devices are distributed along the axial direction of the water conduit.

[0011] Furthermore, the second driving device includes a winding roller fixedly mounted on the outer wall of the water pipe, a pull rope wrapped around the outer wall of the winding roller, and a counterweight block arranged at the end of the pull rope; the counterweight block is arranged on the side of the water pipe away from the filter tank.

[0012] Furthermore, the second driving device is provided in plurality, and the plurality of second driving devices are distributed along the axial direction of the water conduit.

[0013] Furthermore, the bracket includes a bottom plate horizontally arranged below the water pipe, and a plurality of first support plates vertically arranged on the bottom plate; both ends of the driving wheel are rotatably connected to the first support plates, and the blocking rod is rotatably connected to the first support plates.

[0014] Furthermore, the bracket also includes a plurality of second support plates vertically arranged on the bottom plate, and the water pipe is rotatably connected to the second support plates.

[0015] The technical solution of the present invention has at least the following advantages and beneficial effects: When the filter disc needs to be cleaned, the disc filter cleaning device of the present invention can be pushed to the side of the filter tank, and then the first drive device is used to drive the water pipe to rotate, so that the water spray pipe is inserted between the filter discs. The cleaning liquid is pumped into the water pipe through the water supply device and enters the water spray pipe, and finally sprayed out through the water spray holes on the side wall of the water spray pipe to clean the filter disc. After a cleaning cycle is completed, the second drive device is used to drive the water pipe in the reverse direction, so that the water spray pipe is separated from the filter tank and filter disc and enters the interior of the bracket. This effectively prevents the slurry in the filter tank from clogging the water spray pipe, ensuring a good cleaning effect each time the cleaning is performed. The device can also be moved to another filter that needs cleaning by moving the bracket to perform the cleaning operation. This eliminates the need to equip each filter with a cleaning device, effectively reducing the number of cleaning devices and lowering costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A schematic structural diagram of a disc filter cleaning device provided by an embodiment of the present invention when in use from one perspective;

[0017] Figure 2 A schematic structural diagram of the disc filter cleaning device provided by an embodiment of the present invention when in use from two perspectives;

[0018] Figure 3 A schematic structural diagram of a disc filter cleaning device in one state provided by an embodiment of the present invention;

[0019] Figure 4 for Figure 3 A structural diagram from another perspective;

[0020] Figure 5 A schematic structural diagram of a disc filter cleaning device in two states provided by an embodiment of the present invention;

[0021] Figure 6 for Figure 5 A structural diagram from another perspective;

[0022] Figure 7 for Figure 4 Enlarged view of part A.

[0023] Icons: 10- filter tank, 11- filter plate, 20- bracket, 21- bottom plate, 22- first support plate, 23- second support plate, 30- water pipe, 31- water pipe, 32- water hole, 33- bump, 40- first driving device, 41- driving wheel, 42- friction ring, 43- first transmission belt, 44- blocking rod, 45- elliptical block, 50- second driving device, 51- winding roller, 52- pull rope, 53- counterweight, 60- third driving device, 61- second transmission belt, 62- driven wheel. DETAILED DESCRIPTION

[0024] Example

[0025] The following is further described in conjunction with specific embodiments. Figure 1 -Attached Figure 7 As shown, the disc filter cleaning device of this embodiment includes a filter tank 10, a plurality of filter discs 11 arranged in the filter tank 10, a bracket 20 arranged near the side of the filter tank 10, a water pipe 30 horizontally and rotatably arranged on the bracket 20, a water supply device connected to the water pipe 30, a plurality of water spray pipes 31 arranged on the side walls of the water pipe 30, a water spray hole 32 arranged on the side walls of the water spray pipe 31, a first driving device 40 for driving the water pipe 30 to rotate, and a second driving device 50 for driving the water pipe 30 to rotate; a water spray pipe 31 is arranged between a pair of filter discs 11; the first driving device 40 and the second driving device 50 drive the water pipe 30 to rotate in opposite directions, and the first driving device 40 is used to drive the water spray pipe 31 to rotate toward the filter disc 11. Specifically, when the filter disc 11 needs to be cleaned, the bracket 20 can be pushed to the side of the filter tank 10, and then the first drive device 40 can be used to drive the water pipe 30 to rotate, so that the water spray pipe 31 is inserted between the filter discs 11. The cleaning liquid is pumped into the water pipe 30 through the water supply device and enters the water spray pipe 31. Finally, it is sprayed out through the water spray hole 32 on the side wall of the water spray pipe 31 to clean the filter disc 11. After a cleaning is completed, the second drive device 50 is used to drive the water pipe 30 in the reverse direction, so that the water spray pipe 31 is separated from the filter tank 10 and the filter disc 11 and enters the interior of the bracket 20. This can effectively prevent the slurry in the filter tank 10 from clogging the water spray pipe 31, ensuring a good cleaning effect each time the cleaning is performed. In addition, the device can be moved to another filter that needs to be cleaned by moving the bracket 20 for cleaning. This eliminates the need to equip each filter with a cleaning device, effectively reducing the number of cleaning devices and reducing costs.

[0026] In this embodiment, the first drive device 40 includes a drive wheel 41 rotatably mounted on the bracket 20, a friction ring 42 rotatably mounted on the water conduit 30, and a first transmission belt 43 connecting the drive wheel 41 and the friction ring 42. The drive wheel 41 is configured to abut against the outer wall of the filter disc 11. Specifically, when the filter disc 11 needs to be cleaned, the bracket 20 is pushed to the side of the filter tank 10, so that the drive wheel 41 on the bracket 20 contacts the outer edge of the filter disc 11. The filter disc 11 slowly rotates, driving the drive wheel 41 through friction. The drive wheel 41 then drives the friction ring 42 through the first transmission belt 43. A certain amount of friction is generated between the inner wall of the friction ring 42 and the outer wall of the water conduit 30. This friction drives the water conduit 30 to rotate, thereby moving the water spray pipe 31 between the filter discs 11. The movement of the bracket 20 can be achieved by manual pushing or by using an automated driving device, such as setting a guide rail on the ground, and then using a linear motor or other power equipment to drive the bracket 20 to move on the guide rail to achieve the purpose of approaching or moving away from the filter tank 10, and can also move back and forth between multiple filter tanks 10.

[0027] The first drive device 40 in this embodiment further includes a blocking rod 44 horizontally mounted on the bracket 20. The blocking rod 44 is positioned between the filter tank 10 and the water pipe 30; the axial direction of the blocking rod 44 is parallel to the axial direction of the water pipe 30. Specifically, the blocking rod 44 blocks the water pipe 31, preventing it from rotating into the slurry in the filter tank 10. Because the friction ring 42 drives the water pipe 30 to rotate through friction, when the water pipe 31 is stuck on the blocking rod 44, the resistance exerted by the blocking rod 44 on the water pipe 31 and the water pipe 30 is greater than the friction between the friction ring 42 and the water pipe 30. As a result, the friction ring 42 will idle on the outer wall of the water pipe 30.

[0028] In this embodiment, the water spray pipe 31 is provided with a protrusion 33 on the underside of one end near the water conduit 30. An elliptical block 45 is fixed to the blocking rod 44, with the axial direction of the elliptical block 45 parallel to the axial direction of the water conduit 30. The outer wall of the protrusion 33 abuts the outer wall of the elliptical block 45. A third driving device 60 is also included to drive the blocking rod 44 in rotation. The third driving device 60 includes a driven wheel 62 mounted on the blocking rod 44 and a second transmission belt 61 connecting the driving wheel 41 and the driven wheel 62. The blocking rod 44 is rotatably connected to the bracket 20. Specifically, the driving wheel 41, while driving the friction ring 42, also drives the elliptical block 45 in rotation via the second transmission belt 61. As the elliptical block 45 rotates, it periodically pushes the protrusion 33 upward, causing the water spray pipe 31 to oscillate periodically, thereby more evenly and thoroughly cleaning the outer wall of the filter disc 11.

[0029] In this embodiment, a plurality of the first driving devices 40 and a plurality of the third driving devices 60 are provided, and the plurality of the first driving devices 40 and the plurality of the third driving devices 60 are distributed along the axial direction of the water conduit 30 .

[0030] The second driving device 50 in this embodiment includes a winding roller 51 fixedly mounted on the outer wall of the water pipe 30, a pull rope 52 wound around the outer wall of the winding roller 51, and a counterweight 53 located at the end of the pull rope 52; the counterweight 53 is located on the side of the water pipe 30 away from the filter tank 10. Specifically, when cleaning is completed, the movable bracket 20 moves away from the cleaning tank, the driving wheel 41 is separated from the side of the filter disc 11, and the driving wheel 41 loses power. At this time, the counterweight 53 pulls the water pipe 30 to rotate (as shown in the attached figure) through the pull rope 52. Figure 5 -Attached Figure 6 As shown), the water spray pipe 31 rotates to the inside of the bracket 20 (ie, the lower side wall of the filter tank 10)

[0031] In this embodiment, a plurality of second driving devices 50 are provided, and the plurality of second driving devices 50 are distributed along the axial direction of the water conduit 30 .

[0032] The bracket 20 in this embodiment includes a base plate 21 positioned horizontally below the water conduit 30, and a plurality of first support plates 22 vertically mounted on the base plate 21. Both ends of the drive wheel 41 are rotatably connected to the first support plates 22, and the blocking rod 44 is rotatably connected to the first support plates 22. The bracket 20 also includes a plurality of second support plates 23 vertically mounted on the base plate 21, and the water conduit 30 is rotatably connected to the second support plates 23. Specifically, rollers can be provided on the underside of the base plate 21 to facilitate movement of the bracket 20. However, during the cleaning process, the drive wheel 41 must remain in contact with the sidewall of the filter disc 11, so the base plate 21 must be fixed.

[0033] In summary, the disc filter cleaning device of this embodiment can be used to clean the filter disc 11 by pushing the bracket 20 to the side of the filter tank 10. The first drive device 40 is then used to drive the water pipe 30 to rotate, causing the water spray pipe 31 to engage between the filter discs 11. The cleaning liquid is then pumped into the water pipe 30 via the water supply device and enters the water spray pipe 31. The cleaning liquid is finally sprayed out through the water spray holes 32 on the sidewall of the water spray pipe 31 to clean the filter disc 11. After a cleaning cycle is completed, the second drive device 50 is used to drive the water pipe 30 in the reverse direction, causing the water spray pipe 31 to separate from the filter tank 10 and the filter disc 11 and enter the bracket 20. This effectively prevents the slurry in the filter tank 10 from clogging the water spray pipe 31, ensuring a good cleaning effect each time the cleaning cycle is performed. The device can also be moved to another filter that needs cleaning by moving the bracket 20 for cleaning. This eliminates the need to equip each filter with a cleaning device, effectively reducing the number of cleaning devices and lowering costs.

[0034] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Those skilled in the art will readily appreciate that various modifications and variations of the present invention are possible. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A disc filter cleaning device, comprising a filter tank (10), a plurality of filter discs (11) arranged in the filter tank (10), characterized in that: The invention comprises a bracket (20) arranged near the side of the filter tank (10), a water pipe (30) arranged horizontally and rotatably on the bracket (20), a water supply device connected to the water pipe (30), a plurality of water spray pipes (31) arranged on the side wall of the water pipe (30), a water spray hole (32) arranged on the side wall of the water spray pipe (31), a first driving device (40) for driving the water pipe (30) to rotate, and a second driving device (50) for driving the water pipe (30) to rotate; one of the water spray pipes (31) is arranged between a pair of filter discs (11); The first driving device (40) and the second driving device (50) drive the water pipe (30) to rotate in opposite directions, and the first driving device (40) is used to drive the water spray pipe (31) to rotate toward the filter disc (11).

2. The disc filter cleaning device according to claim 1, characterized in that: The first driving device (40) includes a driving wheel (41) rotatably mounted on the bracket (20), a friction ring (42) rotatably sleeved on the water pipe (30), and a first transmission belt (43) for connecting the driving wheel (41) and the friction ring (42); The driving wheel (41) is used to abut against the outer wall of the filter disc (11).

3. The disc filter cleaning device according to claim 2, characterized in that: The first driving device (40) further comprises a blocking rod (44) horizontally arranged on the bracket (20), wherein the blocking rod (44) is arranged between the filter tank (10) and the water pipe (30); the axial direction of the blocking rod (44) is parallel to the axial direction of the water pipe (30).

4. The disc filter cleaning device according to claim 3, characterized in that: A protrusion (33) is provided on the lower side of one end of the water spray pipe (31) close to the water guide pipe (30), and an elliptical block (45) is fixed on the blocking rod (44). The axial direction of the elliptical block (45) is parallel to the axial direction of the water guide pipe (30), and the outer wall of the protrusion (33) abuts against the outer wall of the elliptical block (45); It also includes a third driving device (60) for driving the blocking rod (44) to rotate.

5. The disc filter cleaning device according to claim 4, characterized in that: The third driving device (60) includes a driven wheel (62) provided on the blocking rod (44) and a second transmission belt (61) for connecting the driving wheel (41) and the driven wheel (62). The blocking rod (44) is rotatably connected to the bracket (20).

6. The disc filter cleaning device according to claim 5, characterized in that: A plurality of the first drive device (40) and the third drive device (60) are provided, and the plurality of the first drive devices (40) and the plurality of the third drive devices (60) are distributed along the axial direction of the water conduit (30).

7. The disc filter cleaning device according to claim 1, characterized in that: The second driving device (50) comprises a winding roller (51) fixedly mounted on the outer wall of the water pipe (30), a pull rope (52) wound around the outer wall of the winding roller (51), and a counterweight (53) arranged at the end of the pull rope (52); the counterweight (53) is arranged on a side of the water pipe (30) away from the filter tank (10).

8. The disc filter cleaning device according to claim 7, characterized in that: A plurality of the second driving devices (50) are provided, and the plurality of the second driving devices (50) are distributed along the axial direction of the water conduit (30).

9. The disc filter cleaning device according to claim 4, characterized in that: The bracket (20) comprises a bottom plate (21) horizontally arranged below the water pipe (30), and a plurality of first support plates (22) vertically arranged on the bottom plate (21); Both ends of the driving wheel (41) are rotatably connected to the first support plate (22), and the blocking rod (44) is rotatably connected to the first support plate (22).

10. The disc filter cleaning device according to claim 9, characterized in that: The bracket (20) further comprises a plurality of second support plates (23) vertically arranged on the bottom plate (21), and the water pipe (30) is rotatably connected to the second support plates (23).

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