A self-cleaning moss filter
By using a rotatable column to drive the cleaning components and scrapers in the secondary sedimentation tank, the problem of difficult-to-clean aquatic plants or moss on the overflow baffle is solved, achieving an automated cleaning effect and improving the ease of use of the equipment.
Patent Information
- Application Number
- CN202311137539.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2023-09-05
- Publication Date
- 2026-03-03
- Estimated Expiration
- 2043-09-05
AI Technical Summary
The overflow baffle of the existing secondary sedimentation tank is covered with aquatic plants or moss, which is inconvenient to clean and requires manual operation, affecting its performance.
Design a self-cleaning secondary sedimentation tank, which uses a rotatable rotating column, and is equipped with cleaning components and scrapers. The rotating column drives the cleaning components and scrapers to contact the overflow baffle, automatically wiping away aquatic plants and achieving cleaning without manual intervention.
It enables automatic cleaning of the overflow baffle, preventing the growth of aquatic plants or algae, and improving ease of use and cleaning efficiency.
Smart Images

Figure CN117069251B_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of secondary sedimentation tank technology, specifically to a self-cleaning moss secondary sedimentation tank. Background Technology
[0002] Secondary sedimentation tanks, also known as secondary settling tanks, are a very important component of the entire activated sludge process system. The sedimentation of suspended particles in water can be divided into free sedimentation, flocculation sedimentation, stratification sedimentation (impeded sedimentation), and compression sedimentation. In addition to the function of water-liquid separation, secondary sedimentation tanks also have the function of sludge thickening.
[0003] The overflow baffle in the secondary sedimentation tank is composed of several metal plates with triangular or isosceles trapezoidal tops. Water flows out into the collection tank through the gaps between two adjacent triangles or between two isosceles trapezoids. Due to its thinness and smooth surface, it becomes covered with aquatic plants or moss after long-term use, which stick to the side walls and are very inconvenient to clean. The current common method is to wait until the aquatic plants grow to a certain length and then use hooks to catch and clean them. This method requires manual cleaning and can only remove most of the aquatic plants. Some shorter plants that cannot be hooked will remain on the overflow baffle and overflow wall. Moreover, it is only easy to clean them after they have grown longer. In other words, most of the time, there are aquatic plants on the overflow wall and overflow baffle, which affects the use of the tank. Summary of the Invention
[0004] To address the shortcomings of existing technologies, this invention provides a self-cleaning moss secondary sedimentation tank, comprising a rotatable rotating column. An installation component is detachably fixedly mounted at the bottom of the rotating column. First elastic components are fixedly mounted on opposite sides inside the installation component. Cleaning components are fixedly mounted on opposite sides of the two first elastic components, and the two cleaning components contact the side walls of an overflow baffle. Two inclined rods are rotatably connected to the rotating column. A second elastic component, in a fixed position, pulls the two inclined rods to rotate vertically. A third elastic component is fixedly mounted between the two inclined rods. Scrapers that contact the top and side walls of the overflow baffle are fixedly mounted at the bottom of the inclined rods.
[0005] Preferably, a vertical rod is fixedly installed at the bottom of the rotating column, and a slot is provided on the vertical rod, and the top of the mounting component can be detachably inserted into the slot.
[0006] Preferably, a limiting strip is fixedly installed at the bottom of the side wall of the slot, and a limiting block is fixedly installed at the top of the side wall of the mounting component, with the limiting block located above the limiting strip.
[0007] Preferably, pressure plates are fixedly installed on opposite sides of the two first elastic members, and the cleaning member has an adapter groove, into which the pressure plate is inserted.
[0008] Preferably, two sealing boxes are fixedly installed on opposite side walls inside the mounting component, and the two sealing boxes respectively enclose two first elastic elements, with the connection between the pressure plate and the sealing box being sealed.
[0009] Preferably, two universal joints are fixedly installed at the bottom of the rotating column, and the two diagonal rods are respectively fixedly connected to the movable ends of the two universal joints.
[0010] Preferably, each of the two inclined rods has a through hole, the connecting rod passes through the two through holes, and the second elastic element is fixedly connected to the connecting rod.
[0011] Preferably, the diameters at both ends of the connecting rod are larger than the diameter of the through hole.
[0012] Preferably, the top cross-section of the overflow wall is trapezoidal, and the scraper is adapted to the side wall of the overflow wall.
[0013] The present invention has the following beneficial effects:
[0014] By installing cleaning components on both sides of the overflow baffle, the rotating column moves the cleaning components to wipe both sides of the overflow baffle as it rotates, preventing the growth of aquatic plants on both sides of the overflow baffle. By installing scrapers on the rotating column and maintaining a certain pre-tight force between the scrapers and the overflow wall, the rotating column scrapes across both sides of the overflow wall as it moves, preventing the growth of aquatic plants on both sides of the overflow wall. The entire process requires no manual operation and is easy to use. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the overall structure provided by the present invention.
[0016] Figure 2 This invention provides Figure 1 Enlarged view of point A in the image.
[0017] Figure 3 This is a schematic diagram of the shape of the cleaning component provided by the present invention.
[0018] Figure 4 This is a schematic diagram of the connection between the scraper and the rotating column provided by the present invention.
[0019] Figure 5 This is a side view of the connection between the scraper and the rotating column provided by the present invention.
[0020] Appendix Figure 1-5 The structures represented by each label are listed below:
[0021] 1. Settling tank body; 2. Inlet pipe; 3. Water distribution components; 4. Fixing frame; 5. First-stage speed reducer; 6. Second-stage speed reducer; 7. Rotating column; 8. Motor; 9. Output components; 10. Guide rail; 11. Overflow wall; 12. Water collection trough; 13. Overflow baffle; 14. Slag baffle; 15. Outlet pipe; 16. Slag scraper; 17. Scum collector; 18. Sludge scraper; 19. Vertical rod; 20. Slot; 21. Mounting components; 22. First elastic component; 23. Pressure dividing plate; 24. Cleaning components; 25. Bolt holes; 26. Sealing box; 27. Adaptor groove; 28. Second elastic component; 29. Limiting strip; 30. Limiting block; 31. Universal joint; 32. Diagonal rod; 33. Scraper; 34. Third elastic component; 35. Through hole; 36. Connecting rod. Detailed Implementation
[0022] The principles and features of the present invention are described below. The embodiments given are only for explaining the present invention and are not intended to limit the scope of the present invention.
[0023] It should be noted that when a part or component is considered to be "connected to," "located on," or "assembled" to another part or component, it can be directly mounted on the other part or component, or it may be located in an intermediate part or component. The terms "left," "right," "upper," "lower," and similar expressions used in this document are for illustrative purposes only.
[0024] In one specific implementation, such as Figure 1-5 As shown, a self-cleaning moss secondary sedimentation tank includes a rotatable rotating column 7. An installation component 21 is detachably fixedly installed at the bottom of the rotating column 7. First elastic components 22 are fixedly installed on opposite sides inside the installation component 21. Cleaning components 24 are fixedly installed on opposite sides of the two first elastic components 22. The two cleaning components 24 are in contact with the two side walls of the overflow baffle 13. Two inclined rods 32 are rotatably connected to the rotating column 7. A second elastic component 28 is fixedly positioned to pull the two inclined rods 32 to rotate vertically. A third elastic component 34 is fixedly installed between the two inclined rods 32. A scraper 33 is fixedly installed at the bottom of the inclined rods 32, which contacts the top and side walls of the overflow wall 11.
[0025] Specifically, an inlet pipe 2 is fixedly installed inside the sedimentation tank body 1. The sewage to be treated enters the sedimentation tank body 1 through the inlet pipe 2. A water distribution component 3 is fixedly installed on the top of the inlet pipe 2. A fixing frame 4 is fixedly installed inside the sedimentation tank body 1. A primary speed reduction plate 5 surrounding the water distribution component 3 is fixedly installed on the fixing frame 4. A secondary speed reduction plate 6 surrounding the primary speed reduction plate 5 is fixedly installed on the fixing frame 4. The water distribution component 3, the primary speed reduction plate 5, and the secondary speed reduction plate 6 are all used to slow down the flow rate of sewage after entering the sedimentation tank body 1, and prevent the water flow from being too large and disturbing the water in the sedimentation tank body 1 that has completed sedimentation and scum removal. A rotating column 7 is rotatably connected to the top of the fixed frame 4. A motor 8 is fixedly installed on the side of the rotating column 7 away from the fixed frame 4. An output component 9 is fixedly installed on the output end of the motor 8. A circular guide rail 10, whose center coincides with the axis of rotation of the rotating column 7, is fixedly installed on the top of the sedimentation tank body 1. The guide rail 10 is adapted to the output component 9. The motor 8 drives the output component 9 to rotate on the guide rail 10 to drive the rotating column 7 to rotate around the fixed frame 4. In this embodiment, the output component 9 is a gear, and the top of the guide rail 10 has a corresponding tooth groove. In other embodiments, the output component 9 can also be a roller, and the top of the guide rail 10 is adapted to the roller and embedded in the sedimentation tank body 1. An overflow wall 11 is fixedly installed inside the sedimentation tank body 1, and a water collection trough 12 is formed between the overflow wall 11 and the sedimentation tank body 1. Figure 1 As shown, several overflow baffles 13 are fixedly installed at equal intervals on the top of the overflow wall 11. A slag baffle 14 located inside the overflow wall 11 and with its top higher than the overflow baffles 13 is fixedly installed on the sedimentation tank body 1. A water outlet pipe 15 connected to the water collection tank 12 is embedded in the sedimentation tank body 1. A slag scraper 16 and a scum collector 17 are fixedly installed at the bottom of the rotating column 7 between the secondary deceleration plate 6 and the slag baffle 14 for cleaning up the floating scum. A sludge scraper 18 extending to the bottom wall of the sedimentation tank body 1 is fixedly installed on the rotating column 7 for cleaning up the settled sediment.
[0026] like Figure 2 As shown, in this embodiment, a vertical rod 19 is fixedly installed at the bottom of the rotating column 7. A slot 20 is provided on the vertical rod 19, and the top of the mounting component 21 is inserted into the slot 20. Several coaxial bolt holes 25 are provided on the vertical rod 19 and the mounting component 21. Bolts are inserted into the bolt holes 25 to fix the mounting component 21 to the vertical rod 19. When disassembly is required, the bolts can be pulled out. Figure 4As shown, further, a limiting strip 29 is fixedly installed at the bottom of the side wall of the slot 20, and a limiting block 30 is fixedly installed at the top of the side wall of the mounting component 21. The limiting block 30 is located above the limiting strip 29. The gap between the limiting strip 29 and the other side wall of the slot 20 is less than the sum of the widths of the limiting block 30 and the top of the mounting component 21. That is, after the bolt is pulled out, the limiting block 30 contacts the limiting strip 29 to prevent the mounting component 21 from falling or tipping over.
[0027] like Figure 2 , Figure 3 As shown, in this embodiment, pressure plates 23 are fixedly installed on opposite sides of the two first elastic members 22, and the cleaning member 24 is provided with an adapter groove 27, such as... Figure 3 As shown, the pressure plate 23 is inserted into the adapter groove 27. The groove direction of the adapter groove 27 is consistent with the rotation direction of the rotating column 7 from the outside to the inside. That is, the pressure plate 23 pushes the cleaning component 24 to move by pushing the side wall of the adapter groove 27, which facilitates the replacement of the cleaning component 24. At the same time, the pressure plate 23 evenly transmits the thrust of the first elastic element 22 to the cleaning component 24, which makes the cleaning component 24 fit better with the overflow baffle 13 and prevents the edges from lifting. Furthermore, the cleaning component 24 is a sponge. In other embodiments, the cleaning component 24 can also be a cleaning tool such as a brush.
[0028] Furthermore, sealing boxes 26 are fixedly installed on opposite side walls inside the mounting component 21. The two sealing boxes 26 respectively enclose the two first elastic elements 22. The connection between the pressure plate 23 and the sealing box 26 is sealed, for example, by fitting a sealing ring on the pressure plate 23. This allows the pressure plate 23 to be pushed by the first elastic elements 22 while ensuring the sealing of the sealing box 26, preventing the first elastic elements 22 from rusting due to long-term immersion in water.
[0029] The bottom of the cleaning component 24 contacts the top of the overflow wall 11, and the height of the cleaning component 24 is greater than the height of the overflow baffle 13, so that the cleaning component 24 can thoroughly clean both sides of the overflow baffle 13.
[0030] like Figure 4 As shown, in this embodiment, two universal joints 31 are fixedly installed at the bottom of the rotating column 7, and the two inclined rods 32 are respectively fixedly connected to the movable ends of the two universal joints 31, so that the inclined rods 32 can rotate left, right, back and forth. The initial state of the inclined rods 32 is inclined. The second elastic member 28 pulls the inclined rods 32 to rotate in a vertical direction, so that the top of the scraper 33 is in close contact with the top of the overflow wall 11. The third elastic member 34 pulls the two inclined rods 32 closer to each other, so that the scraper 33 is in close contact with the side wall of the overflow wall 11.
[0031] like Figure 5 As shown, in this embodiment, each of the two inclined rods 32 has a through hole 35. A connecting rod 36 passes through the two through holes 35. The second elastic element 28 is fixedly connected to the connecting rod 36 to apply tension to the two inclined rods 32. The diameter of the through hole 35 is larger than the diameter of the connecting rod 36, so that the connecting rod 36 does not affect the inclined rods 32 from moving closer or further apart. Furthermore, the diameters at both ends of the connecting rod 36 are larger than the diameter of the through hole 35 to prevent the connecting rod 36 from detaching from the through hole 35.
[0032] In this embodiment, the top cross-section of the overflow wall 11 is trapezoidal, and the scraper 33 is adapted to the side wall of the overflow wall 11 to achieve a better fit.
[0033] In summary: By installing cleaning components 24 on both sides of the overflow baffle 13, the rotating column 7 moves and wipes the cleaning components 24 on both sides of the overflow baffle 13 while rotating, preventing the growth of aquatic plants on both sides of the overflow baffle 13. By installing scraper 33 on the rotating column 7 and maintaining a certain pre-tight force between the scraper 33 and the overflow wall 11, the rotating column 7 scrapes the two sides of the overflow wall 11 when it moves the scraper 33, preventing the growth of aquatic plants on the two sides of the overflow wall 11. The whole process does not require manual operation and is convenient to use.
[0034] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention in any way. Those skilled in the art can readily implement the present invention based on the accompanying drawings and the description above. However, any modifications, alterations, or variations made by those skilled in the art without departing from the scope of the present invention, using the disclosed technical content, are equivalent embodiments of the present invention. Furthermore, any modifications, alterations, or variations made to the above embodiments based on the essential technology of the present invention are still within the protection scope of the present invention.
Claims
1. A self-cleaning moss secondary sedimentation tank, characterized in that: The device includes a rotatable rotating column (7), on the bottom of which a mounting component (21) is detachably fixedly installed. First elastic components (22) are fixedly installed on opposite sides inside the mounting component (21). Cleaning components (24) are fixedly installed on opposite sides of the two first elastic components (22). The two cleaning components (24) contact the two side walls of the overflow baffle (13). Two inclined rods (32) are rotatably connected to the rotating column (7). A second elastic component (28) in a fixed position pulls the two inclined rods (32) to rotate vertically. A third elastic element (34) is fixedly installed between the two diagonal rods (32). A scraper (33) that contacts the top and side wall of the overflow wall (11) is fixedly installed at the bottom of the diagonal rods (32). A vertical rod (19) is fixedly installed at the bottom of the rotating column (7). A slot (20) is provided on the vertical rod (19). The top of the mounting part (21) is detachably inserted into the slot (20). A limit strip (29) is fixedly installed at the bottom of the side wall of the slot (20). A limit block (30) is fixedly installed at the top of the side wall of the mounting part (21). The limiting block (30) is located above the limiting strip (29). Two first elastic members (22) are respectively fixedly installed on opposite sides with pressure plates (23). The cleaning member (24) has an adapter groove (27). The pressure plate (23) is inserted into the adapter groove (27). Two inclined rods (32) are respectively provided with through holes (35). The connecting rod (36) passes through the two through holes (35). The second elastic member (28) is fixedly connected to the connecting rod (36).
2. The self-cleaning moss secondary sedimentation tank according to claim 1, characterized in that: The mounting component (21) has two sealing boxes (26) fixedly installed on its two opposite side walls. The two sealing boxes (26) respectively wrap two first elastic members (22). The pressure plate (23) is sealed at the connection with the sealing box (26).
3. The secondary sedimentation tank for self-cleaning moss as described in claim 1, characterized in that: Two universal joints (31) are fixedly installed at the bottom of the rotating column (7), and the two diagonal rods (32) are fixedly connected to the movable ends of the two universal joints (31) respectively.
4. A secondary sedimentation tank for self-cleaning moss as described in claim 1, characterized in that: The diameters at both ends of the connecting rod (36) are larger than the diameter of the through hole (35).
5. A secondary sedimentation tank for self-cleaning moss as described in claim 1, characterized in that: The top cross-section of the overflow wall (11) is trapezoidal, and the scraper (33) is adapted to the side wall of the overflow wall (11).
Citation Information
Patent Citations
Secondary sedimentation tank cleaning device
CN213965303U
Automatic moss removing device for secondary sedimentation tank wall, water outlet tank and water outlet weir plate
CN217613099U