Secondary sedimentation tank liquid level regulating structure

Abstract

The utility model discloses a two -stage tank technical field's a two -stage tank liquid level regulating structure, including the sedimentation tank area, the outside fixed setting of sedimentation tank area has the purification pond area, the inner wall of sedimentation tank area is sleeved and has the filter ring, the outside fixed of filter ring has the limit sliding slot, the inner wall fixed connection of sedimentation tank area has the limit sliding block, the sliding sleeve of limit sliding block is in the inside of limit sliding slot, the bottom fixed connection of sedimentation tank area has first drive arrangement, first drive arrangement is fixedly connected with lead screw through the shaft, the bottom center fixed connection of filter ring has the fixed plate, the screw thread rotation sleeve of lead screw is in the fixed plate center. This setting can electric control and adjust the height of water level, according to the size of water flow, adjust the sedimentation time, can make sewage sedimentation effect better, compared with traditional fixed type filtration, has the remarkable advantage.

Description

Technical Field

[0001] This utility model belongs to the technical field of secondary sedimentation tanks, specifically relating to a liquid level adjustment structure for a secondary sedimentation tank. Background Technology

[0002] Secondary sedimentation tanks, also known as settling tanks, are an important component of activated sludge systems. A typical secondary sedimentation tank consists of two concentric rings: an inner ring for influent sedimentation and an outer ring for supernatant collection. The inner ring is equipped with a serrated mesh screen for filtration. The primary function of the secondary sedimentation tank is to separate sludge, clarify the mixed liquor, concentrate it, and return the activated sludge. Its performance directly affects the effluent quality and the concentration of returned sludge in the activated sludge system. Large and medium-sized wastewater treatment plants mostly use circular radial flow sedimentation tanks with mechanical sludge suction; medium-sized plants may use multi-hopper horizontal flow sedimentation tanks; and small plants often use vertical flow sedimentation tanks.

[0003] Currently, there are many secondary sedimentation tank structures on the market, such as the one proposed in publication number CN208599236U, which includes: a tank body, an overflow tank, a sludge guide pipe, a sludge weir, and a sludge discharge pipe. The tank body has an inlet through which the wastewater to be treated enters the tank body. The overflow tank is located on the inner side wall of the tank body and is connected to the discharge pipe. The sludge guide pipe is located at the bottom of the tank body. A set of sludge weirs is provided on the sludge guide pipe. The sludge discharge pipe is connected to the sludge weirs, and the deposited sludge is discharged through the sludge weirs from the discharge pipe.

[0004] In existing secondary sedimentation tanks, the filter rings and inner sedimentation zones are usually fixedly connected, resulting in a fixed water level in the inner zone. When the water flow is too large, the water level needs to be adjusted so that the wastewater can be properly buffered in the sedimentation zone to facilitate the replacement of sediment. Since the filter rings are fixed, the sedimentation effect is usually affected, which has certain limitations. Utility Model Content

[0005] The purpose of this invention is to provide a secondary sedimentation tank level adjustment structure to solve the problem mentioned in the background art that the existing secondary sedimentation tank filtration water level cannot be adjusted according to the water flow rate, which easily leads to incomplete sedimentation. This device adopts a secondary sedimentation tank with electrically adjustable filtration water level, which can adjust the filtration water level according to the water flow rate, so that the sewage can be better settled. Compared with the traditional fixed water level secondary sedimentation tank, this device has significant advantages.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a secondary sedimentation tank level adjustment structure, comprising a sedimentation tank area, a purification tank area fixedly disposed on the outer side of the sedimentation tank area, a filter ring sleeved on the inner wall of the sedimentation tank area, a limiting groove fixedly formed on the outer side of the filter ring, a limiting slider fixedly connected to the inner wall of the sedimentation tank area, the limiting slider being slidably sleeved inside the limiting groove, a first driving device fixedly connected to the bottom of the sedimentation tank area, the first driving device being fixedly connected to a lead screw via a shaft, a fixed plate fixedly connected to the bottom center of the filter ring, and the lead screw being threadedly rotatably sleeved on the center of the fixed plate.

[0007] Preferably, a threaded sleeve is fixedly connected to the upper end of the fixing plate, the inner wall of the threaded sleeve is provided with a threaded strip, and a limit cap is fixedly connected to the top end of the lead screw.

[0008] Preferably, the first driving device includes a first motor housing, a first drive motor, and a first power supply. The first drive motor is fixedly connected to one side of the interior of the first motor housing, and the first power supply is fixedly connected to the other side of the interior of the first motor housing.

[0009] Preferably, a limiting circular groove is fixedly provided at the upper outer side of the sedimentation tank area, and a rotating circular groove is fixedly provided at the lower outer side of the sedimentation tank area, with meshing teeth fixedly provided inside the rotating circular groove.

[0010] Preferably, a limiting rotating block is slidably sleeved inside the limiting circular groove, a bracket is fixedly connected to one end of the limiting rotating block, a traveling device is fixedly connected to the lower end of the bracket, the traveling device is disposed inside the rotating circular groove, a second driving device is fixedly connected to the upper end of the bracket, and a cleaning brush is fixedly connected to the lower end of the second driving device via a shaft.

[0011] Preferably, the second drive device includes a second motor housing, a second drive motor, and a second power supply. Heat dissipation windows are fixedly opened on both sides of the second motor housing. The second drive motor is fixedly connected to one side of the interior of the second motor housing, and the second power supply is fixedly connected to the other side of the interior of the second motor housing.

[0012] Preferably, the walking device includes a motor housing, a walking motor, a walking gear, and a third power supply. The walking motor is fixedly connected to one side of the motor housing, and the walking gear is fixedly connected to the walking motor via a shaft. The third power supply is fixedly connected to the other side of the motor housing.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] 1. This utility model can electrically control and adjust the water level, and adjust the sedimentation time according to the water flow rate, which can make the sewage sedimentation effect better. Compared with traditional fixed filtration, it has significant advantages.

[0015] 2. This utility model can perform regular electric cleaning of the filter table, keeping the tabletop clean and tidy without the need for manual cleaning, which is more convenient and helps maintain the purification and filtration effect of the water source, preventing algae from affecting water quality. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the structure of the fixing plate of this utility model;

[0018] Figure 3 This is a schematic diagram of the internal structure of the first driving device of this utility model;

[0019] Figure 4 This is a schematic diagram of the sedimentation tank area of ​​this utility model;

[0020] Figure 5 This is a side view of the present invention.

[0021] Figure 6 This is a schematic diagram of the internal structure of the second driving device of this utility model;

[0022] Figure 7 This is a schematic diagram of the internal structure of the walking device of this utility model.

[0023] In the diagram: 1. Sedimentation tank area; 2. Purification tank area; 3. First drive device; 4. Filter ring; 5. Limiting slide groove; 6. Limiting slider; 7. Fixing plate; 8. Lead screw; 9. Threaded sleeve; 10. Threaded strip; 11. Limiting cover; 12. First motor box; 13. First drive motor; 14. Limiting circular groove; 15. Rotating circular groove; 16. Meshing teeth; 17. Limiting rotating block; 18. Bracket; 19. Walking device; 20. Second drive device; 21. Cleaning brush; 22. Second motor box; 23. Second drive motor; 24. Second power supply; 25. Motor compartment; 26. Walking motor; 27. Walking gear; 28. Third power supply; 29. ​​First power supply. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Please see Figure 1-7 This utility model provides a technical solution: a secondary sedimentation tank level adjustment structure, including a sedimentation tank area 1, a purification tank area 2 fixedly arranged on the outer side of the sedimentation tank area 1, a filter ring 4 sleeved on the inner wall of the sedimentation tank area 1, a limiting groove 5 fixedly opened on the outer side of the filter ring 4, a limiting slider 6 fixedly connected to the inner wall of the sedimentation tank area 1, the limiting slider 6 slidingly sleeved inside the limiting groove 5, a first driving device 3 fixedly connected to the bottom of the sedimentation tank area 1, a lead screw 8 fixedly connected to the first driving device 3 through a shaft, a fixed plate 7 fixedly connected to the bottom center of the filter ring 4, and the lead screw 8 threadedly rotated and sleeved at the center of the fixed plate 7.

[0026] In this embodiment, wastewater undergoes primary sedimentation in sedimentation tank 1. When the water level surpasses filter ring 4, it is then filtered a second time before entering purification tank 2, thus completing wastewater treatment. During the treatment process, if the water flow increases and water level adjustment is needed, the first drive device 3 can be activated via a control switch before wastewater is introduced. The rotation of the first drive device 3 drives the lead screw 8 to rotate, which in turn rotates with the fixed plate 7. The fixed plate 7 is fixed to the inner wall of the filter ring 4. The filter ring 4, through a sliding groove design, can only slide up and down within the sedimentation tank 1. The rotation of the lead screw 8 drives the filter ring 4 to adjust its height, thereby adjusting the filtered water level. This design allows for electric control of the water level, adjusting the sedimentation time according to the water flow rate, resulting in better wastewater sedimentation. Compared to traditional fixed filtration, this design offers significant advantages.

[0027] Specifically, a threaded sleeve 9 is fixedly connected to the upper end of the fixed plate 7, and a threaded strip 10 is provided on the inner wall of the threaded sleeve 9. A limit cover 11 is fixedly connected to the top end of the lead screw 8.

[0028] In this embodiment, the threaded sleeve 9 makes the rotation of the lead screw 8 more stable, and the surface of the lead screw 8 can be coated with a waterproof material to prevent rusting when submerged in water.

[0029] Specifically, the first drive device 3 includes a first motor housing 12, a first drive motor 13 and a first power supply 29. The first drive motor 13 is fixedly connected to one side of the interior of the first motor housing 12, and the first power supply 29 is fixedly connected to the other side of the interior of the first motor housing 12.

[0030] In this embodiment, since the first drive device 3 is located underwater and adjustment is not frequently required, no heat dissipation window is provided.

[0031] Specifically, a limiting groove 14 is fixedly provided at the upper outer side of the sedimentation tank area 1, and a rotating groove 15 is fixedly provided at the lower outer side of the sedimentation tank area 1. The rotating groove 15 is fixedly provided with meshing teeth 16 inside.

[0032] In this embodiment, the limiting circular groove 14 allows the rotating circular groove 15 and the meshing teeth 16 to cooperate with each other to perform curved surface wrapping.

[0033] Specifically, a limiting rotating block 17 is slidably sleeved inside the limiting circular groove 14. A bracket 18 is fixedly connected to one end of the limiting rotating block 17. A walking device 19 is fixedly connected to the lower end of the bracket 18. The walking device 19 is located inside the rotating circular groove 15. A second driving device 20 is fixedly connected to the upper end of the bracket 18. A cleaning brush 21 is fixedly connected to the lower end of the second driving device 20 via a shaft.

[0034] In this embodiment, the limiting rotating block 17 can limit the bracket 18 to only perform circumferential movement. During use, when driven to rotate by the walking device 19, it can mesh with the meshing teeth 16, thereby driving the bracket 18 to perform circumferential movement. At this time, the second driving device 20 can drive the cleaning brush 21 to clean the filter table, preventing the filter table surface from becoming covered with moss and other algae after long-term use, which would affect the filtration effect. This design allows for regular electric cleaning of the filter table, keeping the table surface clean and tidy without the need for manual cleaning, which is more convenient and helps maintain the purification and filtration effect of the water source, preventing algae from affecting the water quality.

[0035] Specifically, the second drive device 20 includes a second motor housing 22, a second drive motor 23, and a second power supply 24. Heat dissipation windows are fixedly opened on both sides of the second motor housing 22. The second drive motor 23 is fixedly connected to one side of the interior of the second motor housing 22, and the second power supply 24 is fixedly connected to the other side of the interior of the second motor housing 22.

[0036] In this embodiment, the second power supply 24 can provide power to the second drive motor 23, so that the second drive motor 23 can be driven to rotate for cleaning.

[0037] Specifically, the walking device 19 includes a motor housing 25, a walking motor 26, a walking gear 27, and a third power supply 28. The walking motor 26 is fixedly connected to one side of the interior of the motor housing 25, and the walking gear 27 is fixedly connected to the walking motor 26 via a shaft. The third power supply 28 is fixedly connected to the other side of the interior of the motor housing 25.

[0038] In this embodiment, the third power source 28 provides power to the walking motor 26, enabling the walking motor 26 to drive the walking gear 27 to rotate. The rotating walking gear 27 meshes with the meshing gear 16, thereby driving the support 18 to perform circular motion to clean the filter table. During use, wastewater is discharged into the sedimentation tank 1 for primary sedimentation. When the water level exceeds the filter ring 4, secondary filtration occurs before the wastewater enters the purification tank 2, thus completing wastewater treatment. During treatment, if the water flow increases and water level adjustment is needed, the first drive device 3 can be activated via a control switch before wastewater is introduced. The rotation of the first drive device 3 drives the lead screw 8. When the screw 8 rotates, it can rotate with the fixed plate 7. The fixed plate 7 is fixed to the inner wall of the filter ring 4. The filter ring 4 can only slide up and down on the inner wall of the sedimentation tank area 1 through the design of the sliding groove. When the screw 8 rotates, it can drive the filter ring 4 to adjust the height of the filtered water. When it is necessary to clean the table, the walking device 19 is driven to rotate and can mesh with the meshing teeth 16, thereby driving the bracket 18 to rotate in a circle. At this time, the second driving device 20 can drive the cleaning brush 21 to clean the filter table and prevent the surface of the filter table from being covered with moss and other algae after long-term use, which would affect the filtration effect.

[0039] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A liquid level regulating structure for a secondary sedimentation tank, comprising a sedimentation tank area (1), characterized in that: A purification tank area (2) is fixedly installed on the outside of the sedimentation tank area (1). A filter ring (4) is sleeved on the inner wall of the sedimentation tank area (1). A limiting groove (5) is fixedly opened on the outside of the filter ring (4). A limiting slider (6) is fixedly connected to the inner wall of the sedimentation tank area (1). The limiting slider (6) is slidably sleeved inside the limiting groove (5). A first driving device (3) is fixedly connected to the bottom of the sedimentation tank area (1). A lead screw (8) is fixedly connected to the first driving device (3) through a shaft. A fixing plate (7) is fixedly connected to the bottom center of the filter ring (4). The lead screw (8) is threadedly sleeved on the center of the fixing plate (7).

2. The liquid level adjustment structure for a secondary sedimentation tank according to claim 1, characterized in that: The upper end of the fixed plate (7) is fixedly connected to a threaded sleeve (9), the inner wall of the threaded sleeve (9) is provided with a threaded strip (10), and the top end of the lead screw (8) is fixedly connected to a limit cap (11).

3. The liquid level adjustment structure for a secondary sedimentation tank according to claim 1, characterized in that: The first drive device (3) includes a first motor housing (12), a first drive motor (13) and a first power supply (29). The first drive motor (13) is fixedly connected to one side of the interior of the first motor housing (12), and the first power supply (29) is fixedly connected to the other side of the interior of the first motor housing (12).

4. The liquid level adjustment structure for a secondary sedimentation tank according to claim 1, characterized in that: A limiting circular groove (14) is fixedly opened at the upper outer side of the sedimentation tank area (1), and a rotating circular groove (15) is fixedly opened at the lower outer side of the sedimentation tank area (1). The rotating circular groove (15) is fixedly provided with meshing teeth (16).

5. The liquid level adjustment structure for a secondary sedimentation tank according to claim 4, characterized in that: The limiting circular groove (14) is slidably fitted with a limiting rotating block (17). One end of the limiting rotating block (17) is fixedly connected to a bracket (18). The lower end of the bracket (18) is fixedly connected to a walking device (19). The walking device (19) is located inside the rotating circular groove (15). The upper end of the bracket (18) is fixedly connected to a second driving device (20). The lower end of the second driving device (20) is fixedly connected to a cleaning brush (21) via a shaft.

6. The liquid level adjustment structure for a secondary sedimentation tank according to claim 5, characterized in that: The second drive device (20) includes a second motor housing (22), a second drive motor (23), and a second power supply (24). Heat dissipation windows are fixedly opened on both sides of the second motor housing (22). The second drive motor (23) is fixedly connected to one side of the interior of the second motor housing (22), and the second power supply (24) is fixedly connected to the other side of the interior of the second motor housing (22).

7. The liquid level adjustment structure for a secondary sedimentation tank according to claim 5, characterized in that: The walking device (19) includes a motor housing (25), a walking motor (26), a walking gear (27), and a third power supply (28). The walking motor (26) is fixedly connected to one side of the interior of the motor housing (25), and the walking gear (27) is fixedly connected to the walking motor (26) via a shaft. The third power supply (28) is fixedly connected to the other side of the interior of the motor housing (25).

Images