Inlet water filtering device of air dissolving water pump of air floatation tank

By introducing a hydraulic cylinder and a moving trolley structure into the dissolved air pump inlet filtration device of the dissolved air flotation tank, the problem of filter plate clogging was solved, and automatic cleaning of the filter plates and collection of dirt were realized, ensuring the stable operation of the dissolved air flotation tank.

CN223760507UActive Publication Date: 2026-01-06HEBEI GUANGLI ENVIRONMENTAL PROTECTION TECH CO LTD
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Patent Information

Application Number
CN202520059608.5
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-01-10
Publication Date
2026-01-06
Estimated Expiration
2035-01-10

AI Technical Summary

Technical Problem

The existing dissolved air flotation tank dissolved air water pump inlet filtration device is prone to clogging after long-term use, resulting in reduced filtration efficiency and inability to effectively clean and collect accumulated dirt, affecting the stable operation of the device.

Method used

A structure including a filter tank, a top plate, a grading hydraulic cylinder, a connecting block, a collection plate, a conveying trough, filter plates, a support plate, a cleaning tank, and baffles is designed. The hydraulic cylinder and a moving trolley realize automatic cleaning of the filter plates and collection of dirt, avoiding dirt from blocking the filter plates and ensuring the stable operation of the device.

Benefits of technology

It enables convenient cleaning of the filter plates and effective collection of waste, avoids pollution of the surrounding environment, ensures stable operation of the flotation tank, and prevents the dissolved air pump from being blocked by debris.

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Abstract

The utility model discloses an air floatation tank dissolved air water pump inlet water filtering device which is characterized in that the upper surface of a filtering tank is fixedly connected with a plurality of supporting plates II, the upper surfaces of the supporting plates II are fixedly connected with a top plate, the upper surface of the top plate is fixedly connected with a grading hydraulic cylinder, and the output end of the grading hydraulic cylinder is fixedly connected with a connecting block; a collecting plate is fixedly connected to the side surface of the connecting block, a conveying groove is formed in the collecting plate and is semicircular, and the diameter of the conveying groove is the same as the width of the collecting plate, a plurality of filter plates are arranged in the filter tank, a first supporting plate is fixedly connected to the side surface of the filter tank, and a cleaning tank and a third baffle are fixedly connected to the upper surface of the first supporting plate; by means of the structure, cleaning of the filter plate is facilitated, cleaned dirt is collected, the situation that the dirt blocks the filter plate and influences filtration of the filter plate is avoided, the situation that the air dissolving water pump is blocked by sundries is avoided, and stable operation of the air floatation tank is guaranteed.
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Description

Technical Field

[0001] This utility model relates to the technical field of dissolved air pump inlet filtration device for dissolved air flotation tanks, and particularly to a dissolved air pump inlet filtration device for dissolved air flotation tanks. Background Technology

[0002] Existing dissolved air flotation (DAF) tank dissolved air pump inlet filtration devices, by incorporating a tiered filtration system, facilitate the filtration of impurities and prevent clogging of the pump. However, these devices cannot clean or collect the accumulated impurities on the tiered filtration system during use. Over time, this can easily clog the tiered filtration system, reducing its filtration efficiency and affecting its usability. For example, Chinese patent disclosure "A Dissolved Air Pump Inlet Filtration Device for DAF Tanks" (application number: CN202222643759.4) uses a tiered filtration system to prevent the pump from being clogged by debris. However, it also cannot clean or collect the accumulated impurities on the tiered filtration system during use. Over time, this can easily clog the tiered filtration system, reducing its filtration efficiency and affecting its usability, thus limiting its application. Utility Model Content

[0003] The purpose of this utility model is to at least solve one of the technical problems existing in the prior art, and to provide a dissolved air flotation tank dissolved air water pump inlet filtration device. By setting up a filter tank, a top plate, a grading hydraulic cylinder, a connecting block, a collection plate, a conveying trough, a filter plate, a support plate, a cleaning tank and a baffle, and a collection box, it is convenient to clean the filter plate and collect the cleaned dirt, so as to avoid the dirt from polluting the surrounding environment, and at the same time, to prevent the dirt from blocking the filter plate and affecting its filtration, and to prevent the dissolved air water pump from being blocked by debris, thus ensuring the stable operation of the dissolved air flotation tank.

[0004] This utility model also provides a dissolved air flotation tank inlet filtration device, comprising: a filtration tank, wherein a plurality of support plates are fixedly connected to the upper surface of the filtration tank, a top plate is fixedly connected to the upper surface of the support plates, a grading hydraulic cylinder is fixedly connected to the upper surface of the top plate, the output end of the grading hydraulic cylinder penetrates the top plate and extends to the lower surface of the top plate, a connecting block is fixedly connected to the output end of the grading hydraulic cylinder, a collecting plate is fixedly connected to the side surface of the connecting block, and a conveying trough is provided inside the collecting plate, the conveying trough being semi-circular with a diameter the same as the width of the collecting plate. The filtration tank contains several filter plates. The edges of the collection plates are attached to the filter plates. A support plate is fixedly connected to the side surface of the filtration tank. A cleaning tank and a baffle plate are fixedly connected to the upper surface of the support plate. The baffle plate is fixedly connected to the front end of the cleaning tank. A collection box is provided at the end of the cleaning tank away from the baffle plate. The lower surface of the collection box is flush with the lower surface of the filtration tank. This structure facilitates the cleaning of the filter plates and the collection of the cleaned debris, preventing debris from blocking the filter plates and affecting filtration. It also prevents the dissolved air pump from being clogged by debris, ensuring the stable operation of the flotation tank.

[0005] According to the present invention, a dissolved air flotation tank inlet filtration device is provided, wherein a side plate is fixedly connected to the side surface of the filtration tank, and a through groove is provided between the side plate and the second support plate. The through groove is located on both sides of the upper surface of the filtration tank, and a support block and a guide block are fixedly connected in the through groove on the left and right sides respectively. A common hydraulic cylinder is fixedly connected to the support block, and a push plate is fixedly connected to the output end of the common hydraulic cylinder. With the above structure, it is convenient to clean the scraped dirt.

[0006] According to the present invention, a dissolved air pump inlet filtration device for an air flotation tank is provided, wherein a storage block is fixedly connected to the upper surface of the filtration tank, and a push plate is located above the storage block and slidably connected to the storage block. Through the above structure, the push plate is supported and it is easy to store it.

[0007] According to the present invention, a dissolved air pump inlet filtration device for an air flotation tank is provided, wherein a second baffle is fixedly connected to the side surface of the cleaning tank, the second baffle is located on the side of the cleaning tank away from the filtration tank, the cleaning tank is fixedly connected to a first support plate, and two first baffles are fixedly connected to the side surface of the cleaning tank, the first baffles are located on the side surfaces at both ends of the cleaning tank. Through the above structure, the cleaned dirt is collected to prevent dirt from spilling.

[0008] According to the present invention, a dissolved air flotation tank dissolved air pump inlet filtration device is provided, wherein a track and a support plate are fixedly connected to the upper and lower surfaces of the support plate one, respectively; the track is located between two baffles; a trolley is slidably connected to the track; a fixing block is fixedly connected to the upper surface of the trolley; a connecting column is fixedly connected to the side surface of the fixing block; and a control panel is fixedly connected to the side surfaces of the support plate three. The control panel is electrically connected to a grading hydraulic cylinder, a general hydraulic cylinder, and the trolley. Through the above structure, the movement of the trolley is facilitated, thereby driving the cleaning block to clean the dirt in the cleaning tank, and the trolley is controlled at the same time.

[0009] According to the present invention, a dissolved air pump inlet filtration device for an air flotation tank is provided, wherein a cleaning block is slidably connected inside the cleaning tank, and the end of the connecting column away from the fixed block is fixedly connected to the upper surface of the cleaning block. The above structure facilitates the movement of the cleaning block.

[0010] According to the present invention, a dissolved air pump inlet filtration device for an air flotation tank is provided, wherein limiting blocks are fixedly connected to both sides of the support plate, and the lower surface of the limiting blocks is flush with the upper surface of the push plate. Through the above structure, it is easy to limit the rising height of the collection plate and avoid spillage of the cleaned dirt.

[0011] According to the present invention, a dissolved air pump inlet filtration device for an air flotation tank is provided, wherein a support frame is fixedly connected to the side surface of the filtration tank, and the end of the support frame away from the filtration tank is fixedly connected to the lower surface of a support plate. The support plate is supported by the above structure.

[0012] Beneficial effects:

[0013] Compared with existing technologies, this dissolved air flotation tank dissolved air pump inlet filtration device, by setting up a filter tank, a top plate, a grading hydraulic cylinder, a connecting block, a collection plate, a conveying trough, filter plates, a support plate, a cleaning tank and baffles, and a collection box, facilitates the cleaning of the filter plates and the collection of the cleaned waste, avoiding pollution of the surrounding environment by the waste, preventing the waste from blocking the filter plates and affecting their filtration, and preventing the dissolved air pump from being blocked by debris, thus ensuring the stable operation of the dissolved air flotation tank. Attached Figure Description

[0014] The present invention will be further described below with reference to the accompanying drawings and embodiments;

[0015] Figure 1 This is an overall structural diagram of the dissolved air pump inlet filtration device for an air flotation tank according to the present invention.

[0016] Figure 2 This is a rear view structural diagram of the dissolved air pump inlet filtration device for an air flotation tank according to the present invention.

[0017] Figure 3This is a cross-sectional view of the dissolved air pump inlet filtration device for an air flotation tank according to the present invention.

[0018] Figure 4 This is a longitudinal sectional view of the dissolved air pump inlet filtration device for an air flotation tank according to the present invention.

[0019] Figure 5 This utility model relates to a dissolved air flotation tank dissolved air water pump inlet water filtration device. Figure 2 Enlarged structural diagram at point C.

[0020] Legend:

[0021] 1. Filter tank; 2. Support plate one; 3. Track; 4. Baffle one; 5. Collection box; 6. Moving trolley; 7. Fixing block; 8. Control panel; 9. Baffle two; 10. Baffle three; 11. Connecting block; 12. Collection plate; 13. Top plate; 14. Grading hydraulic cylinder; 15. Support plate two; 16. Filter plate; 17. Side plate; 18. Ordinary hydraulic cylinder; 19. Storage block; 20. Push plate; 21. Cleaning tank; 22. Limiting block; 23. Through groove; 24. Support plate three; 25. Cleaning block; 26. Guide block; 27. Support frame; 28. Connecting column. Detailed Implementation

[0022] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0023] Reference Figure 1-5This utility model discloses a dissolved air flotation tank dissolved air water pump inlet filtration device, comprising: a filtration tank 1, a support frame 27 fixedly connected to the side surface of the filtration tank 1, the end of the support frame 27 away from the filtration tank 1 being fixedly connected to the lower surface of a support plate 2 for supporting the support plate 2, a side plate 17 fixedly connected to the side surface of the filtration tank 1, a through groove 23 provided between the side plate 17 and the support plate 25, the through groove 23 being located on both sides of the upper surface of the filtration tank 1 for easy cleaning of dirt, and a support block and a guide block 26 fixedly connected to the through groove 23 on the left and right sides respectively for cleaning of dirt. The filter tank 1 is guided to prevent dirt from spilling onto its upper surface. A standard hydraulic cylinder 18 is fixedly connected to the support block, and a push plate 20 is fixedly connected to the output end of the standard hydraulic cylinder 18, which moves the push plate 20. A receiving block 19 is fixedly connected to the upper surface of the filter tank 1, and the push plate 20 is located above the receiving block 19 and is slidably connected to the receiving block 19 for easy storage of the push plate 20. Several support plates 15 are fixedly connected to the upper surface of the filter tank 1, and limit blocks 22 are fixedly connected to the side surfaces of the support plates 15. The lower surface of the limit blocks 22 is flush with the upper surface of the push plate 20. The support plate 15 is flat, limiting the rising height of the collection plate 12. A top plate 13 is fixedly connected to the upper surface of the support plate 15. The top plate 13 is fixedly connected to the upper surface of the top plate 13. A grading hydraulic cylinder 14 is fixedly connected to the upper surface of the top plate 13. The output end of the grading hydraulic cylinder 14 passes through the top plate 13 and extends to the lower surface of the top plate 13. A connecting block 11 is fixedly connected to the output end of the grading hydraulic cylinder 14, driving the connecting block 11 to rise and fall. A collection plate 12 is fixedly connected to the side surface of the connecting block 11, driving the collection plate 12 to rise and fall. A conveying groove is provided inside the collection plate 12. The conveying groove is semi-circular, and its diameter is equal to the width of the collection plate 12. Similarly, it is convenient to scrape the dirt on the filter plate 16. Several filter plates 16 are set in the filter tank 1 for filtration. The edge of the collection plate 12 is attached to the filter plate 16. A support plate 1 2 is fixedly connected to the side surface of the filter tank 1. A cleaning tank 21 and a baffle 3 10 are fixedly connected to the upper surface of the support plate 1 2 for cleaning and collecting dirt. The baffle 3 10 is fixedly connected to the front end of the cleaning tank 21 to block dirt. A collection box 5 is set at the end of the cleaning tank 21 away from the baffle 3 10. The lower surface of the collection box 5 is flush with the lower surface of the filter tank 1 for collecting dirt.

[0024] A baffle 29 is fixedly connected to the side surface of the cleaning tank 21. The baffle 29 is located on the side of the cleaning tank 21 away from the filter tank 1 to block dirt. The cleaning tank 21 is fixedly connected to the support plate 12. Two baffles 14 are fixedly connected to the side surface of the cleaning tank 21. The baffles 14 are located on the side surfaces at both ends of the cleaning tank 21. The upper and lower surfaces of the support plate 12 are respectively fixedly connected to the track 3 and the support plate 34. The track 3 is located between the two baffles 14 to block the moving trolley 6 and prevent it from falling off the track 3. The moving trolley 6 is slidably connected to the track 3 to facilitate its movement. The trolley 6 moves, and a fixed block 7 is fixedly connected to the upper surface of the trolley 6. A connecting column 28 is fixedly connected to the side surface of the fixed block 7. The connecting column 28 is fixed. A control panel 8 is fixedly connected to the side surface of the support plate 3 24. The control panel 8 is fixed. The control panel 8 is electrically connected to the grading hydraulic cylinder 14, the ordinary hydraulic cylinder 18, and the trolley 6 to control the grading hydraulic cylinder 14, the ordinary hydraulic cylinder 18, and the trolley 6. A cleaning block 25 is slidably connected in the cleaning pool 21. The end of the connecting column 28 away from the fixed block 7 is fixedly connected to the upper surface of the cleaning block 25, which drives the cleaning block 25 to move.

[0025] Working principle: During use, the grading hydraulic cylinder 14 drives the collecting plate 12 to rise under the control of the control panel 8, scraping the filter plate 16 to remove dirt, which falls into the conveying groove on the collecting plate 12. Rubber blocks are provided at the contact points between the collecting plate 12 and the filter plate 16 to prevent damage to the filter plate 16. When the upper surface of the collecting plate 12 is in contact with the lower surface of the limiting block 22, the ordinary hydraulic cylinder 18 drives the push plate 20 to move, pushing the dirt on the collecting plate 12 into the cleaning pool 21. Then the collecting plate 12 and the push plate 20 return to their original positions. At the same time, the moving trolley 6 moves, driving the connecting column 28 to move, which in turn drives the cleaning block 25 to move, causing the dirt to fall into the collecting box 5. Then it returns to its original position.

[0026] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A dissolved air flotation tank dissolved air water pump inlet filtration device, characterized in that, Include: Filtering pool (1), the upper surface of the filtering pool (1) is fixedly connected with a plurality of support plates two (15), the upper surface of the support plate two (15) is fixedly connected with a top plate (13), the upper surface of the top plate (13) is fixedly connected with a staged hydraulic cylinder (14), the output end of the staged hydraulic cylinder (14) penetrates through the top plate (13) and extends to the lower surface of the top plate (13), the output end of the staged hydraulic cylinder (14) is fixedly connected with a connecting block (11), the side surface of the connecting block (11) is fixedly connected with a collection plate (12), the collection plate (12) is provided with a conveying groove, the conveying groove is semicircular, and the diameter is the same as the width of the collection plate (12), a plurality of filter plates (16) are arranged in the filtering pool (1), the edges of the collection plate (12) are attached to the filter plates (16), the side surface of the filtering pool (1) is fixedly connected with a support plate one (2), the upper surface of the support plate one (2) is fixedly connected with a cleaning pool (21) and a baffle three (10), the baffle three (10) is fixedly connected to the front end of the cleaning pool (21), the cleaning pool (21) is provided with a collection box (5) away from the baffle three (10) one end, and the lower surface of the collection box (5) is flush with the lower surface of the filtering pool (1).

2. The dissolved air water pump intake filter apparatus for a flotation basin of claim 1, wherein, The side surface of the filtering pool (1) is fixedly connected with a side plate (17), a through groove (23) is arranged between the side plate (17) and the support plate two (15), the through groove (23) is located on both sides of the upper surface of the filtering pool (1), and support blocks and flow guide blocks (26) are fixedly connected in the left and right through grooves (23) respectively, the ordinary hydraulic cylinders (18) are fixedly connected to the upper surfaces of the support blocks, and the output ends of the ordinary hydraulic cylinders (18) are fixedly connected with push plates (20).

3. The dissolved air water pump intake filter apparatus for a flotation basin of claim 2, wherein, The upper surface of the filtering pool (1) is fixedly connected with a receiving block (19), and the push plate (20) is located above the receiving block (19) and is in sliding connection with the receiving block (19).

4. The dissolved air water pump intake filter apparatus for a flotation basin of claim 3, wherein, The side surface of the cleaning pool (21) is fixedly connected with a baffle two (9), the baffle two (9) is located on the side of the cleaning pool (21) away from the filtering pool (1), the cleaning pool (21) is fixedly connected to the support plate one (2), the side surface of the cleaning pool (21) is fixedly connected with two baffles one (4), and the baffles one (4) are located on the side surfaces of the two ends of the cleaning pool (21).

5. The dissolved air water pump intake filter apparatus for a flotation basin of claim 4, wherein, The upper and lower surfaces of the support plate one (2) are respectively fixedly connected with a track (3) and a support plate three (24), the track (3) is located between the two baffles one (4), a moving trolley (6) is in sliding connection with the track (3), a fixed block (7) is fixedly connected to the upper surface of the moving trolley (6), a connecting column (28) is fixedly connected to the side surface of the fixed block (7), a control panel (8) is fixedly connected to the side surface of the support plate three (24), and the control panel (8) is electrically connected with the staged hydraulic cylinder (14), the ordinary hydraulic cylinder (18) and the moving trolley (6).

6. The dissolved air water pump intake filter apparatus for a flotation basin of claim 5, wherein, A cleaning block (25) is in sliding connection in the cleaning pool (21), and the connecting column (28) is fixedly connected to the upper surface of the cleaning block (25) away from the fixed block (7).

7. The dissolved air water pump intake filter apparatus for a flotation basin of claim 1, wherein, The support plate two (15) side surface is fixedly connected with a limiting block (22), and the lower surface of the limiting block (22) is flush with the upper surface of the push plate (20).

8. The dissolved air water pump intake filter apparatus for a flotation basin of claim 1, wherein, The filter tank (1) is fixedly connected with a support frame (27) on the side surface, and the end, away from the filter tank (1), of the support frame (27) is fixedly connected to the lower surface of the support plate one (2).

Citation Information

Patent Citations

  • Inlet water filtering device of air dissolving water pump of air floatation tank

    CN219539543U