Sewage discharge device for sedimentation tank

By introducing motor-driven longitudinal rods and helical blades into the sedimentation tank, the problem of blockage in the sewage discharge pipe caused by sludge sedimentation was solved, and efficient sewage discharge from the sedimentation tank was achieved.

CN223774385UActive Publication Date: 2026-01-09CHANGSHA TIANNING THERMAL POWER CO LTD
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Patent Information

Application Number
CN202520180092.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-05
Publication Date
2026-01-09
Estimated Expiration
2035-02-05

AI Technical Summary

Technical Problem

In existing sedimentation tanks, the sludge settles at the bottom layer, which is damp and prone to sticking together, causing blockages in the sewage discharge pipes and reducing the sewage discharge efficiency of the sedimentation tanks.

Method used

A sedimentation tank sludge discharge device was designed, comprising motor-driven longitudinal rods and helical blades. The rotating helical blades push the sludge downwards, and the synchronous rotation of multiple longitudinal rods is achieved through sprockets and chains, thereby improving sludge discharge efficiency.

Benefits of technology

It effectively avoids clogging of sewage pipes, improves the sewage discharge efficiency of sedimentation tanks, and achieves rapid sludge removal.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a sedimentation tank blowdown device, and relates to the technical field of sedimentation tank cleaning, the sedimentation tank blowdown device comprises a sedimentation tank and a top support, the left side of the sedimentation tank is provided with a feed port, the right side of the sedimentation tank is provided with a discharge port, the inside of the sedimentation tank is fixedly provided with a partition plate, and a communicating pipe penetrates through the inside of the partition plate; a plurality of blow-off pipelines are distributed on the lower surface of the sedimentation tank, supporting legs are welded to the four corners of the lower end of the sedimentation tank, the top support is fixed to the top end of the sedimentation tank, a motor is installed on the inner side of a motor stabilizing frame, a longitudinal rod is connected to the output end of the motor, and a chain wheel is fixedly installed on the outer side of the top end of the longitudinal rod. According to the utility model, the motor, the longitudinal rod and the spiral blade are arranged, the motor drives the longitudinal rod to rotate, the spiral blade arranged at the lower end of the longitudinal rod rotates along with the longitudinal rod, and the rotating spiral blade can push sludge to move downwards, so that the sludge can quickly pass through a sewage discharge pipeline, and the risk that the sewage discharge pipeline is blocked is reduced.
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Description

Technical Field

[0001] This utility model relates to the field of sedimentation tank cleaning technology, specifically a sedimentation tank sewage discharge device. Background Technology

[0002] Sedimentation tanks are structures that remove suspended solids from water by using sedimentation. They are widely used in wastewater treatment and come in many types. According to the direction of water flow in the tank, they can be divided into three types: horizontal flow, vertical flow, and radial flow. The filtered water in the upper layer of the sedimentation tank can be directly pumped out by a water pump, but the sludge in the lower layer of the sedimentation tank cannot be directly pumped out by a water pump. Therefore, cleaning the sludge in the bottom layer of the sedimentation tank is more difficult.

[0003] In existing wastewater, sludge settles at the bottom layer. The sludge is moist and easily sticks together, causing it to get stuck in the sewage pipes and blockage the pipes, thus reducing the sewage discharge efficiency of the sedimentation tank. Therefore, there is an urgent need for a sewage discharge device for sedimentation tanks. Utility Model Content

[0004] Therefore, the purpose of this utility model is to provide a sedimentation tank discharge device to solve the problem that in existing sewage, the sludge settles at the bottom layer, the sludge is wet and easily sticks together, which makes the sludge easy to get stuck in the discharge pipe, causing blockage of the discharge pipe and reducing the discharge efficiency of the sedimentation tank.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a sedimentation tank sewage discharge device, comprising a sedimentation tank and a top support, wherein an inlet is provided on the left side of the sedimentation tank and an outlet is provided on the right side of the sedimentation tank, a partition plate is fixedly installed inside the sedimentation tank and a connecting pipe runs through the inside of the partition plate, a plurality of sewage discharge pipes are distributed on the lower surface of the sedimentation tank, and support feet are welded to the four corners of the lower end of the sedimentation tank.

[0006] The top support is fixed to the top of the sedimentation tank, and a motor stabilizer is welded to the top of the top support. A motor is installed on the inner side of the motor stabilizer. The output end of the motor is connected to a longitudinal rod, and helical blades are distributed on the outer side of the longitudinal rod. A sprocket is fixedly installed on the outer side of the top of the longitudinal rod, and a chain is engaged with the outer side of the sprocket.

[0007] Preferably, there are two connecting pipes and two partition plates, and the height of the right connecting pipe is lower than the height of the left connecting pipe.

[0008] Preferably, a gathering plate is provided on the inner bottom of the sedimentation tank, and the bottom of the gathering plate is connected to the top of the sewage pipe, and a valve is installed at the lower end of the sewage pipe.

[0009] Preferably, the lower end of the longitudinal rod extends through the top support into the sedimentation tank via a bearing, and the number of longitudinal rods is equal to the number of sewage pipes, with the lower end of the longitudinal rod positioned directly above the sewage pipes.

[0010] Preferably, the adjacent longitudinal bars are connected by sprockets and chains, and the central axis of the sprockets coincides with the central axis of the longitudinal bars.

[0011] Preferably, a controller is provided on the outside of the motor stabilizer, and the controller is electrically connected to the motor.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] 1. This utility model is equipped with a motor, a longitudinal rod and a spiral blade. The motor drives the longitudinal rod to rotate, and the spiral blade set at the lower end of the longitudinal rod rotates accordingly. The rotating spiral blade can push the sludge downward so that the sludge can pass through the sewage pipe quickly and reduce the risk of the sewage pipe being blocked.

[0014] 2. In this utility model, a sprocket is provided on the outer top of the first and last longitudinal rods, and two sprockets are provided on the outer top of the middle longitudinal rod. Through the cooperation of the sprockets and the chain, several longitudinal rods can rotate synchronously, so as to achieve the effect of cleaning several sewage pipes simultaneously, which greatly improves the sewage discharge efficiency of the sedimentation tank. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0016] Figure 2 This is a schematic diagram of the structure of this utility model;

[0017] Figure 3 This is a top view of the structure of this utility model;

[0018] Figure 4 For the present utility model Figure 2 Enlarged structural diagram at point A in the middle.

[0019] In the diagram: 1. Sedimentation tank; 2. Inlet; 3. Outlet; 4. Divider plate; 5. Connecting pipe; 6. Gathering plate; 7. Sewage pipe; 8. Valve; 9. Support leg; 10. Horizontal plate; 11. Motor stabilizer; 12. Motor; 13. Controller; 14. Longitudinal rod; 15. Spiral blade; 16. Sprocket; 17. Chain. Detailed Implementation

[0020] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0021] The embodiments of this utility model will be described below based on its overall structure.

[0022] Please see Figure 1-4 A sedimentation tank discharge device includes a sedimentation tank 1 and a top support 10. An inlet 2 is provided on the left side of the sedimentation tank 1, and an outlet 3 is provided on the right side of the sedimentation tank 1. A partition plate 4 is fixedly installed inside the sedimentation tank 1, and a connecting pipe 5 runs through the inside of the partition plate 4. There are two connecting pipes 5 and two partition plates 4. The height of the connecting pipe 5 on the right side is lower than that on the left side. The partition plate 4 divides the internal space of the sedimentation tank 1 into three equal parts. Sewage enters the leftmost area of ​​the sedimentation tank 1 through the inlet 2, and then passes through the two connecting pipes 5 to achieve sedimentation. The sedimented water is discharged from the outlet 3. Several sewage discharge pipes 7 are distributed on the lower surface of the sedimentation tank 1. Support feet 9 are welded to the four corners of the lower end of the sedimentation tank 1. A gathering plate 6 is provided on the inner side of the bottom of the sedimentation tank 1, and the bottom of the gathering plate 6 is connected to the top of the sewage discharge pipe 7. A valve 8 is installed at the lower end of the sewage discharge pipe 7. The sludge left by the sedimentation of sewage is discharged through the sewage discharge pipe 7. The gathering plate 6 facilitates the movement of sludge to the sewage discharge pipe 7, thereby facilitating the discharge of sludge.

[0023] The top support 10 is fixed to the top of the sedimentation tank 1, and a motor stabilizer 11 is welded to the top of the top support 10. A motor 12 is installed inside the motor stabilizer 11. The output end of the motor 12 is connected to a longitudinal rod 14, and spiral blades 15 are distributed on the outer side of the longitudinal rod 14. The lower end of the longitudinal rod 14 extends into the sedimentation tank 1 through the top support 10 via a bearing. The number of longitudinal rods 14 is equal to the number of sewage pipes 7, and the lower end of the longitudinal rod 14 is positioned directly above the sewage pipe 7. By starting the motor 12, the longitudinal rod 14 is driven to rotate, and the spiral blades 15 integrated at the lower end of the longitudinal rod 14 rotate accordingly. The rotating spiral blades 15 can push the sludge downwards, so that the sludge can quickly pass through the sewage pipe 7, reducing the risk of sludge clogging the sewage pipe 7. A spiral blade is fixedly installed on the outer side of the top of the longitudinal rod 14. A sprocket 16 is provided, and a chain 17 is meshed with the outer side of the sprocket 16. Adjacent longitudinal rods 14 are connected by sprockets 16 and chains 17, and the central axis of the sprocket 16 coincides with the central axis of the longitudinal rod 14. A sprocket 16 is provided on the outer side of the top of the first longitudinal rod 14 and the last longitudinal rod 14, and two sprockets 16 are provided on the outer side of the top of the middle longitudinal rod 14. Through the cooperation of the sprockets 16 and chains 17, several longitudinal rods 14 can rotate synchronously, so as to achieve the effect of synchronous cleaning of several sewage pipes 7, which greatly improves the sewage discharge efficiency of the sedimentation tank 1. A controller 13 is provided on the outer side of the motor stabilizer 11, and the controller 13 is electrically connected to the motor 12. The motor stabilizer 11 is used to fix the motor 12, so that the working environment of the motor 12 is stable. The controller 13 is used to issue commands to the motor 12.

[0024] Working principle: In operation, sewage first enters the leftmost area of ​​sedimentation tank 1 through inlet 2. Two partition plates 4 divide the internal space of sedimentation tank 1 into three equal parts. Sewage passes through the partition plates 4 via connecting pipe 5 to reach different areas inside sedimentation tank 1. The sludge in the sewage is heavy and settles at the bottom. Under the action of the gathering plate 6, the sludge moves towards the sewage discharge pipe 7 and is discharged. Because the sludge is wet and easy to stick, a large amount of sludge can easily block the sewage discharge pipe 7. At this time, the motor 12 is started by the controller 13. The motor 12 drives the longitudinal rod 14 to rotate. The spiral blades 15 set at the lower end of the longitudinal rod 14 rotate accordingly. The rotating spiral blades 15 can push the sludge downward so that the sludge can quickly pass through the sewage discharge pipe 7. Adjacent longitudinal rods 14 are connected by sprockets 16 and chains 17. Through the cooperation of sprockets 16 and chains 17, several longitudinal rods 14 rotate synchronously to achieve the effect of synchronously cleaning several sewage discharge pipes 7, which helps to improve the sewage discharge efficiency of sedimentation tank 1.

[0025] The device is controlled automatically by a controller. The controller circuit can be easily programmed by those skilled in the art and is common knowledge in the field. Therefore, the control method and circuit connection of this device will not be explained in detail.

[0026] The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0027] The terms “center,” “longitudinal,” “lateral,” “front,” “rear,” “left,” “right,” “vertical,” “horizontal,” “top,” “bottom,” “inner,” and “outer,” etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are merely simplified descriptions for the convenience of describing this utility model and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the scope of protection of this utility model.

[0028] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A sedimentation tank sludge discharge device, comprising a sedimentation tank (1) and a top support (10), characterized in that: The sedimentation tank (1) has an inlet (2) on the left side and an outlet (3) on the right side. A partition plate (4) is fixedly installed inside the sedimentation tank (1), and a connecting pipe (5) runs through the inside of the partition plate (4). Several sewage pipes (7) are distributed on the lower surface of the sedimentation tank (1). Support feet (9) are welded to the four corners of the lower end of the sedimentation tank (1). The top support (10) is fixed to the top of the sedimentation tank (1), and a motor stabilizer (11) is welded to the top of the top support (10). A motor (12) is installed on the inner side of the motor stabilizer (11). A longitudinal rod (14) is connected to the output end of the motor (12), and spiral blades (15) are distributed on the outer side of the longitudinal rod (14). A sprocket (16) is fixedly installed on the outer side of the top of the longitudinal rod (14), and a chain (17) is meshed with the outer side of the sprocket (16).

2. The sedimentation tank sludge discharge device according to claim 1, characterized in that: Two connecting pipes (5) and two partition plates (4) are provided, and the height of the right connecting pipe (5) is lower than the height of the left connecting pipe (5).

3. The sedimentation tank sewage discharge device according to claim 1, characterized in that: The sedimentation tank (1) has a gathering plate (6) on the inner side of its bottom, and the bottom of the gathering plate (6) is connected to the top of the sewage pipe (7), and a valve (8) is installed at the lower end of the sewage pipe (7).

4. The sedimentation tank sludge discharge device according to claim 1, characterized in that: The lower end of the longitudinal rod (14) extends through the top support (10) via a bearing into the interior of the sedimentation tank (1), and the number of longitudinal rods (14) is equal to the number of sewage pipes (7), and the lower end of the longitudinal rod (14) is located directly above the sewage pipes (7).

5. A sedimentation tank sludge discharge device according to claim 1, characterized in that: The adjacent longitudinal bars (14) are connected by a sprocket (16) and a chain (17), and the central axis of the sprocket (16) coincides with the central axis of the longitudinal bar (14).

6. The sedimentation tank sludge discharge device according to claim 1, characterized in that: A controller (13) is provided on the outside of the motor stabilizer (11), and the controller (13) is electrically connected to the motor (12).