A sewage circulation propeller for a sewage treatment pond

Abstract

This utility model relates to the field of wastewater treatment tank technology, and more particularly to a wastewater circulation propeller for wastewater treatment tanks. It includes a first annular plate, within which a drive shaft is disposed. A first connecting seat is mounted on one end of the drive shaft, and several spaced-apart first blades are mounted along the outer wall of the first connecting seat. A motor is mounted on the other end of the drive shaft, and the motor is fixed in a motor housing, with the drive shaft rotatably connected to the motor housing. An annular first connecting plate is disposed on the end of the first annular plate near the motor housing, and a connecting frame is mounted on the first connecting plate, with the other end of the connecting frame fixed to the motor housing. A conical cylinder is coaxially disposed on the end of the first annular plate away from the motor housing. By setting the conical cylinder structure, this utility model gradually compresses the wastewater during flow, increasing the flow velocity and accumulating potential energy, ultimately resulting in high-speed discharge by the second blades. This can propel the wastewater to a greater distance, enhancing the mixing and circulation effect.

Description

Technical Field

[0001] This utility model relates to the field of sewage treatment tank technology, and in particular to a sewage circulation propeller for sewage treatment tanks. Background Technology

[0002] Wastewater treatment ponds are facilities used to treat wastewater, removing pollutants through physical, chemical, and biological methods to ensure water purification and protect the environment.

[0003] When treating sewage in a wastewater tank, a circulating pump is used to circulate the sewage. By pushing the water flow, a circulation is formed, which allows suspended solids, sludge, and chemicals to mix quickly, avoiding local accumulation or stratification. At the same time, it enhances mass transfer efficiency and increases the rate of biochemical reaction.

[0004] Existing circulating flow mixers mostly consist of a motor and blades connected to the motor. While they can achieve the effect of circulating and propulsing wastewater, the flow velocity depends on the motor's output power, resulting in excessive energy consumption. Furthermore, since the blades are placed directly in the wastewater, the effect is too dispersed, and the potential energy applied to the wastewater is too low, leading to faster dissipation during the flow process. Therefore, we propose a wastewater circulating flow mixer for wastewater treatment ponds. Utility Model Content

[0005] The purpose of this invention is to address the aforementioned shortcomings in the existing technology by proposing a wastewater circulation propeller for a wastewater treatment pond.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a sewage circulation propeller for a sewage treatment tank, comprising a first annular plate, a drive shaft provided inside the first annular plate, a first connecting seat installed on one end of the drive shaft, a plurality of first blades arranged at intervals installed along the outer wall of the first connecting seat, and a motor installed on the other end of the drive shaft, the motor being fixed in a motor housing, and the drive shaft being rotatably connected to the motor housing. A first annular connecting plate is provided on one end of the first annular plate near the motor housing. A connecting frame is installed on the first connecting plate, and the other end of the connecting frame is fixed to the motor housing. A conical cylinder is coaxially mounted on the end of the first annular plate away from the motor housing. The wide end of the conical cylinder is detachably fixed to the first annular plate, while a second annular plate is coaxially mounted on the other end of the conical cylinder. A second connecting seat is provided inside the second annular plate. Several second blades are installed along the outer wall of the second connecting seat at intervals. A drive shaft is installed on the end of the second connecting seat. The drive shaft is coaxially mounted with the drive shaft and installed on the first connecting seat.

[0007] Preferably, a first guide plate with an arc-shaped cross-section is installed along the inner wall of the first connecting plate, the convex surface of the first guide plate is facing the motor housing, and the other end of the first guide plate is fixed to the end of the first annular plate.

[0008] Preferably, a screw is provided through the end of the connecting frame, and a nut is provided on the side of the connecting frame that is relatively far away from the first connecting plate, and the nut is threaded onto the screw. A second annular connecting plate is provided on the side of the first connecting plate away from the first annular plate. A screw passes through the second connecting plate, and nuts are provided on both sides of the second connecting plate. The nuts are threaded onto the screw. A second guide plate with an arc-shaped cross-section is installed on the inner side of the second connecting plate, and the other end of the second guide plate faces the first annular plate.

[0009] Preferably, a receiving cavity is provided at one end of the first connecting seat near the drive shaft, the end of the drive shaft is placed in the receiving cavity, and at least one limiting groove is provided on the inner wall of the receiving cavity. The limiting groove is arranged along the axial direction of the drive shaft, and a limiting block corresponding to the limiting groove is installed on the outer wall of the drive shaft. The limiting block is placed in the limiting groove.

[0010] Preferably, a ring is rotatably mounted on the end of the second connecting seat away from the drive shaft, and several connecting rods are installed along the outer wall of the ring. The other end of the connecting rods is installed on the inner wall of the ring seat, and the cross-section of the ring seat is U-shaped. The ring seat is sleeved on the end of the second annular plate and fastened with bolts.

[0011] Preferably, the conical cylinder is connected to the first annular plate via a flange.

[0012] Preferably, a mounting bracket is installed at the end of the motor housing away from the first annular plate.

[0013] The design scheme proposed in this utility model has the following beneficial effects in application: 1. By setting a conical cylinder structure, the sewage is gradually compressed during the flow process, the flow velocity increases, potential energy accumulates, and finally it is discharged at high speed by the second blade, which can push the sewage to a greater distance and enhance the mixing and circulation effect.

[0014] 2. This utility model is equipped with a first guide plate and a second guide plate to guide sewage smoothly into the first annular plate and the second annular plate, thereby reducing energy loss and improving the flow efficiency. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of the present invention. Figure 1 ; Figure 2 This is a schematic diagram of the overall structure of the present invention. Figure 2 ; Figure 3 This is a cross-sectional view of the present invention; Figure 4 This is a cross-sectional front view of the present invention.

[0016] In the figure: 1. First annular plate; 2. Drive shaft; 3. First connecting seat; 4. First blade; 5. Motor housing; 6. Accommodating cavity; 7. Transmission shaft; 8. Limiting groove; 9. Limiting block; 10. Second connecting seat; 11. Second blade; 12. Conical cylinder; 13. Second annular plate; 14. Annular seat; 15. Ring sleeve; 16. Connecting rod; 17. First guide plate; 18. First connecting plate; 19. Flange; 20. Second guide plate; 21. Second connecting plate; 22. Screw; 23. Connecting frame; 24. Mounting frame. Detailed Implementation

[0017] 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.

[0018] Example Reference Figures 1-4 A sewage circulation propeller for a sewage treatment tank includes a first annular plate 1, a drive shaft 2 is provided inside the first annular plate 1, a first connecting seat 3 is installed on one end of the drive shaft 2, a plurality of first blades 4 are installed along the outer wall of the first connecting seat 3 at intervals, and a motor is installed on the other end of the drive shaft 2. The motor is fixed in a motor housing 5, and the drive shaft 2 is rotatably connected to the motor housing 5. The drive motor provides power for the rotation of the first blades 4.

[0019] To facilitate the installation of the circulating flow generator, a mounting bracket 24 is installed at the end of the motor housing 5 away from the first annular plate 1. In actual use, a through hole is provided on the end of the mounting bracket 24 away from the motor housing 5, and bolts can be passed through the through hole to fix the circulating flow generator in the sewage tank.

[0020] An annular first connecting plate 18 is provided on one end of the first annular plate 1 near the motor housing 5. A connecting frame 23 is installed on the first connecting plate 18. The other end of the connecting frame 23 is fixed to the motor housing 5, connecting the first annular plate 1 and the motor housing 5 to ensure the stability of the motor rotation and allow the first blade 4 to rotate stably under the operation of the motor.

[0021] In use, a first guide plate 17 with an arc-shaped cross-section is installed along the inner wall of the first connecting plate 18. The convex surface of the first guide plate 17 faces the motor housing 5, and the other end of the first guide plate 17 is fixed to the end of the first annular plate 1, so that sewage can flow smoothly and stably into the first annular plate 1 along the inner side of the first connecting plate 18 under the rotation of the first blade 4.

[0022] Furthermore, a screw 22 is provided through the end of the connecting frame 23, and a nut is provided on the side of the connecting frame 23 that is relatively far away from the first connecting plate 18. The nut is threaded onto the screw 22 to detachably fix the connecting frame 23 and the first connecting plate 18. This ensures the stable fixation between the motor housing 5 and the first connecting plate 18 while facilitating the disassembly of the motor housing 5 within the first annular plate 1.

[0023] A second annular connecting plate 21 is provided on the side of the first connecting plate 18 away from the first annular plate 1. A screw 22 is provided through the second connecting plate 21, and nuts are provided on both sides of the second connecting plate 21. The nuts are threaded onto the screw 22. A second guide plate 20 with an arc-shaped cross-section is installed on the inner side of the second connecting plate 21. The other end of the second guide plate 20 is set towards the first annular plate 1. Under the rotation of the first blade 4, sewage will flow from the second connecting plate 21 and the first connecting plate 18 into the first annular plate 1. The second guide plate 20 can guide the flow of sewage, allowing the sewage to concentrate into the first annular plate 1 more quickly.

[0024] A conical cylinder 12 is coaxially mounted on the end of the first annular plate 1 away from the motor housing 5. The wide end of the conical cylinder 12 is detachably fixed to the first annular plate 1, while a second annular plate 13 is coaxially mounted on the other end of the conical cylinder 12. A second connecting seat 10 is provided inside the second annular plate 13, and several second blades 11 are installed along the outer wall of the second connecting seat 10 at intervals. A drive shaft 7 is mounted on the end of the second connecting seat 10. The drive shaft 7 is coaxially mounted with the drive shaft 2 and installed on the first connecting seat 3. After sewage enters the first annular plate 1, it will be affected by... The wastewater is confined and squeezed by the first annular plate 1, allowing it to accumulate potential energy. The wastewater then flows from the first annular plate 1 into the conical cylinder 12. As the diameter of the conical cylinder 12 decreases, the wastewater is squeezed again, increasing the potential energy carried by the wastewater. Finally, the rotation of the second blade 11 causes the wastewater to flow out of the second annular plate 13 at a faster rate, increasing the potential energy and flow rate of the wastewater as it flows out of the circulating pump. This allows the outflowing wastewater to be pushed to a farther position in the wastewater tank, thus enabling the wastewater to mix with the chemicals more quickly.

[0025] It should be noted that a receiving cavity 6 is provided at one end of the first connecting seat 3 near the drive shaft 7, and the end of the drive shaft 7 is placed in the receiving cavity 6. At least one limiting groove 8 is provided on the inner wall of the receiving cavity 6. The limiting groove 8 is arranged along the axial direction of the drive shaft 7. A limiting block 9 corresponding to the limiting groove 8 is installed on the outer wall of the drive shaft 7. The limiting block 9 is placed in the limiting groove 8. The conical cylinder 12 is connected to the first annular plate 1 through the flange 19. With the detachable connection between the conical cylinder 12 and the first annular plate 1, the drive shaft 7 and the first connecting seat 3 can also be detached and installed. This facilitates the disassembly of the conical cylinder 12 on the first annular plate 1 and makes it easier to disassemble and clean the circulating flow generator.

[0026] Furthermore, a ring sleeve 15 is rotatably mounted on the end of the second connecting seat 10 away from the transmission shaft 7. Several connecting rods 16 are installed along the outer wall of the ring sleeve 15 at intervals. The other end of the connecting rods 16 is installed on the inner wall of the annular seat 14. The cross-section of the annular seat 14 is U-shaped. The annular seat 14 is sleeved on the end of the second annular plate 13 and fastened with bolts to fix the transmission shaft 7 and ensure the transmission stability of the transmission shaft 7 when the drive shaft 2 rotates.

[0027] 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 sewage circulation propeller for a sewage treatment tank, characterized in that: Includes a first annular plate (1), a drive shaft (2) is provided inside the first annular plate (1), a first connecting seat (3) is installed on one end of the drive shaft (2), a number of first blades (4) are installed along the outer wall of the first connecting seat (3) at intervals, a motor is installed on the other end of the drive shaft (2), the motor is fixed in the motor housing (5), and the drive shaft (2) is rotatably connected to the motor housing (5); A first annular connecting plate (18) is provided on one end of the first annular plate (1) near the motor housing (5). A connecting frame (23) is installed on the first connecting plate (18), and the other end of the connecting frame (23) is fixed on the motor housing (5). A conical cylinder (12) is coaxially arranged on one end of the first annular plate (1) away from the motor housing (5). The wide end of the conical cylinder (12) is detachably fixed to the first annular plate (1), while a second annular plate (13) is coaxially installed on the other end of the conical cylinder (12). A second connecting seat (10) is provided inside the second annular plate (13). Several second blades (11) are arranged at intervals along the outer wall of the second connecting seat (10). A transmission shaft (7) is installed on the end of the second connecting seat (10). The transmission shaft (7) is coaxially arranged with the drive shaft (2) and installed on the first connecting seat (3).

2. The sewage circulation propeller for a sewage treatment tank according to claim 1, characterized in that: A first guide plate (17) with an arc-shaped cross-section is installed along the inner wall of the first connecting plate (18). The convex surface of the first guide plate (17) faces the motor housing (5), and the other end of the first guide plate (17) is fixed to the end of the first annular plate (1).

3. The sewage circulation propeller for a sewage treatment tank according to claim 1, characterized in that: A screw (22) is provided through the end of the connecting frame (23), and a nut is provided on the side of the connecting frame (23) that is relatively far away from the first connecting plate (18). The nut is threaded onto the screw (22). A second annular connecting plate (21) is provided on the side of the first connecting plate (18) away from the first annular plate (1). A screw (22) is provided through the second connecting plate (21), and nuts are provided on both sides of the second connecting plate (21). The nuts are threaded onto the screw (22). A second guide plate (20) with an arc cross-section is installed on the inner side of the second connecting plate (21), and the other end of the second guide plate (20) is set towards the first annular plate (1).

4. The sewage circulation propeller for a sewage treatment tank according to claim 1, characterized in that: A receiving cavity (6) is provided at one end of the first connecting seat (3) near the drive shaft (7). The end of the drive shaft (7) is placed in the receiving cavity (6). At least one limiting groove (8) is provided on the inner wall of the receiving cavity (6). The limiting groove (8) is arranged along the axial direction of the drive shaft (7). A limiting block (9) corresponding to the limiting groove (8) is installed on the outer wall of the drive shaft (7). The limiting block (9) is placed in the limiting groove (8).

5. A sewage circulation mixer for a sewage treatment tank according to claim 4, characterized in that: A ring sleeve (15) is rotatably mounted on the end of the second connecting seat (10) away from the drive shaft (7). Several connecting rods (16) are installed along the outer wall of the ring sleeve (15) at intervals. The other end of the connecting rod (16) is installed on the inner wall of the ring seat (14). The cross-section of the ring seat (14) is U-shaped. The ring seat (14) is sleeved on the end of the second ring plate (13) and fastened with bolts.

6. The sewage circulation propeller for a sewage treatment tank according to claim 1, characterized in that: The conical cylinder (12) is connected to the first annular plate (1) via a flange (19).

7. A sewage circulation mixer for a sewage treatment tank according to claim 1, characterized in that: A mounting bracket (24) is installed at the end of the motor housing (5) away from the first annular plate (1).

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