Multistage sedimentation tank for sewage treatment

Abstract

A kind of multistage sedimentation tank for sewage treatment, tank top is fixedly connected with support frame A, tank cavity is fixedly connected with support frame B near bottom position, support frame A top is fixedly connected with stirring motor, stirring motor output end coupling is connected with stirring shaft, stirring shaft penetrates support frame A and support frame B and is fixedly connected with multiple groups of scrapers at stirring shaft bottom, support frame A bottom is fixedly connected with inner cylinder, circulating pipeline top penetrates tank and is connected with inner cylinder, circulating pipeline bottom is fixedly connected with tank bottom near scraper installation position, solve the problem that bottom sediment often appears when depositing and blocks discharge pipeline, and solve the problem that original device cannot be cleaned to inner cylinder by internal circulation, cause that inner cylinder is attached too much dirt and cause maintenance detection difficult.

Description

Technical Field

[0001] This utility model belongs to the field of sewage treatment, and in particular relates to a multi-stage sedimentation tank for sewage treatment. Background Technology

[0002] In the process of sewage treatment, sewage needs to be placed in a sedimentation tank for sedimentation to further separate the sewage. During sedimentation, the bottom sediment often blocks the discharge pipe. In addition, the inner cylinder of the device needs to be cleaned in advance during internal maintenance. The original device cannot perform internal circulation, making it difficult to clean the inner cylinder. This results in excessive dirt adhering to the inner cylinder, making maintenance and inspection difficult. Therefore, a multi-stage sedimentation tank for sewage treatment is needed to solve the above problems. Summary of the Invention

[0003] The purpose of this invention is to provide a multi-stage sedimentation tank for wastewater treatment, which aims to solve the problems mentioned in the background art.

[0004] To address the aforementioned problems, a multi-stage sedimentation tank for wastewater treatment is provided, characterized by comprising a clear liquid pipe, a wastewater pipe, a circulation pipe, a sediment pipe, a tank body, and a stirring device. A support frame A is welded to the top of the tank body, and a support frame B is welded to the bottom of the tank body. A stirring motor is bolted to the top of support frame A, and a stirring shaft is connected to the output end of the stirring motor via a coupling. The stirring shaft passes through support frame A and support frame B, and multiple sets of scrapers are welded to its bottom. An inner cylinder is welded to the bottom of support frame A. The top of the circulation pipe passes through the tank body and connects to the inner cylinder, and the bottom of the circulation pipe is welded to the bottom of the tank body near the scraper mounting position.

[0005] Preferably, the circulation pipeline is equipped with solenoid valves at multiple locations near the connection points, and at least one set of pumps is installed inside the circulation pipeline.

[0006] Preferably, the stirring shaft is located in the inner cylinder section and has at least one set of propellers. The rotation of the propellers can pressurize the liquid at the top and push it to the bottom of the tank, thereby ensuring that the liquid can be stirred to clean the inner wall of the inner cylinder and pushed to the bottom when cleaning the inner cylinder. The propellers can assist the circulation pipe in forming a liquid circulation to further flush the bottom of the inner cylinder.

[0007] Preferably, the bottom of the tank is integrally cast with a sediment pipe, a motor mounting base is fixedly connected to one side of the sediment pipe, a sewage discharge motor is provided on the top of the motor mounting base, a sewage discharge blade is connected to the output end of the sewage discharge motor by a coupling, and the end of the sewage discharge blade away from the coupling is movably connected to the wall of the sediment pipe, thereby breaking up larger clumps of sediment to avoid clogging the sediment pipe.

[0008] Preferably, a sewage pipe is welded to the top of the tank, and a solenoid valve is installed inside the sewage pipe. The sewage pipe passes through the tank and is connected to the upper part of the inner cylinder, thereby allowing sewage to be introduced.

[0009] Preferably, a clear liquid pipe is provided at the upper position of the tank wall, and a solenoid valve is installed in the clear liquid pipe. The clear liquid pipe is connected to the tank cavity, thereby guiding the clear liquid to the next process.

[0010] During use, this utility model requires the sewage pipe to be directly connected to the sewage pipe to be treated. The sewage enters the inner cylinder and tank through the sewage pipe. After entering the tank, the sewage can begin sedimentation. The top clear liquid pipe can discharge the clear liquid after sedimentation. The bottom scraper can prevent the sediment at the bottom of the tank from clogging and clumping. The discharge paddle can break up the sediment. If severe blockage occurs, the solenoid valve of the circulation pipe can be opened and the pump can be used to pump water in reverse, pumping the liquid from the top of the inner cylinder into the bottom of the tank to agitate and flush away the sediment. The discharge paddle inside the sediment pipe can also prevent sediment from clogging and clumping. When the tank needs to be cleaned for maintenance, clean water can be introduced through the sewage pipe and the stirring shaft speed can be increased. The solenoid valve in the circulation pipe can be released and the solenoid valves in the clear liquid pipe and sediment pipe can be closed. Adding sufficient liquid and starting the pump to pump water in the forward direction can form a flushing internal circulation.

[0011] Compared with the prior art, the present invention has the following beneficial effects:

[0012] This invention solves the problem of bottom sediment clogging the discharge pipe during sedimentation, and also addresses the issue of the original device's inability to perform internal circulation for cleaning the inner cylinder, leading to excessive dirt buildup and difficulties in maintenance and inspection. The rotating propeller inside the inner cylinder agitates the liquid, effectively cleaning the inner wall. The circulation pipe draws the liquid from the bottom of the tank to a higher position in the inner cylinder. The suction end of the circulation pipe guides the liquid in the inner cylinder to further flush the bottom area, while the top of the inner cylinder is also cleaned by the rotating propeller. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0014] Figure 2 This is a front sectional view of the overall structure of this utility model. Detailed Implementation

[0015] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments. Although exemplary embodiments are disclosed in the drawings, it should be understood that the present utility model can be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided to facilitate a more thorough understanding of the present utility model and to fully convey the concept of the present utility model to those skilled in the art.

[0016] In the description of this specification, the references to terms such as "certain embodiments," "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0017] In this utility model, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance; the term "multiple" refers to two or more unless otherwise explicitly defined. The terms "install," "connect," "join," and "fix" should be interpreted broadly. For example, "connect" can be a fixed connection, a detachable connection, or an integral connection; "join" can be a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0018] Please see Figure 1-2 As shown, the system includes a clear liquid pipe 13, a sewage pipe 12, a circulation pipe 14, a sediment pipe 15, a tank 1, and a stirring device. A support frame A21 is welded to the top of the tank 1, and a support frame B22 is welded to the bottom of the tank 1. A stirring motor 3 is bolted to the top of the support frame A21, and a stirring shaft 31 is connected to the output end of the stirring motor 3 via a coupling. The stirring shaft 31 passes through the support frame A21 and the support frame B22, and multiple sets of scrapers 32 are welded to the bottom of the stirring shaft 31. An inner cylinder 11 is welded to the bottom of the support frame A21. The top of the circulation pipe 14 passes through the tank 1 and is connected to the inner cylinder 11. The bottom of the circulation pipe 14 is welded to the bottom of the tank 1 near the installation position of the scrapers 32.

[0019] Furthermore, multiple solenoid valves 51 are installed near the connection points of the circulation pipeline 14, and at least one set of pumps 5 are installed inside the circulation pipeline 14.

[0020] Furthermore, the stirring shaft 31 is located in the inner cylinder 11 section and has at least one set of propellers 33 running through it. The rotation of the propellers 33 can pressurize the liquid at the top and push it to the bottom of the tank 1.

[0021] Furthermore, a sediment pipe 15 is integrally cast at the bottom of the tank body 1. A motor mounting base 41 is fixedly connected to one side of the sediment pipe 15. A sewage discharge motor 4 is installed on the top of the motor mounting base 41. A sewage discharge blade 42 is connected to the output end of the sewage discharge motor 4 via a coupling. The end of the sewage discharge blade 42 away from the coupling is movably connected to the wall of the sediment pipe 15.

[0022] Furthermore, a sewage pipe 12 is welded to the top of the tank 1, and a solenoid valve 51 is installed inside the sewage pipe 12. The sewage pipe 12 passes through the tank 1 and is connected to the upper part of the inner cylinder 11.

[0023] Furthermore, a clear liquid pipe 13 is provided on the upper part of the wall of the tank body 1, and a solenoid valve 51 is installed inside the clear liquid pipe 13. The clear liquid pipe 13 is connected to the cavity of the tank body 1.

[0024] During the use of this utility model, the sewage pipe 12 needs to be directly connected to the sewage pipe 12 to be treated. The sewage enters the inner cylinder 11 and the tank 1 through the sewage pipe 12. After the sewage enters the tank 1, sedimentation can be carried out. The top clear liquid pipe 13 can discharge the clear liquid after sedimentation. The bottom scraper 32 can prevent the sediment at the bottom of the tank 1 from clogging and clumping. The sewage discharge blade 42 inside the sediment pipe 15 can also prevent the sediment from clogging and clumping. When the tank 1 needs to be cleaned for maintenance, clean water can be introduced through the sewage pipe 12 and the stirring shaft speed can be increased. The solenoid valve 51 in the circulation pipe 14 can be released and the solenoid valves 51 in the clear liquid pipe 13 and sediment pipe 15 can be closed. Adding sufficient liquid and starting the pump 5 can form a flushing internal circulation.

[0025] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not restrictive. Although this utility model has been described in detail with reference to the embodiments, those skilled in the art should understand that modifications or equivalent substitutions to the technical solution of this utility model do not depart from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A multi-stage sedimentation tank for wastewater treatment, characterized in that, The system includes a clear liquid pipeline, a sewage pipeline, a circulation pipeline, a sediment pipeline, a tank, and a stirring device. A support frame A is fixedly connected to the top of the tank, and a support frame B is fixedly connected to the bottom of the tank cavity. A stirring motor is fixedly connected to the top of support frame A, and a stirring shaft is connected to the output end of the stirring motor via a coupling. The stirring shaft passes through support frame A and support frame B, and multiple sets of scrapers are fixedly connected to the bottom of the stirring shaft. An inner cylinder is fixedly connected to the bottom of support frame A. The top of the circulation pipeline passes through the tank and is connected to the inner cylinder. The bottom of the circulation pipeline is fixedly connected to the bottom of the tank near the scraper installation position.

2. The multi-stage sedimentation tank for wastewater treatment according to claim 1, characterized in that, The circulation pipeline is equipped with solenoid valves at multiple points near the connection points, and at least one set of pumps is installed inside the circulation pipeline.

3. The multi-stage sedimentation tank for wastewater treatment according to claim 1, characterized in that, The stirring shaft is located in the inner cylinder section and has at least one set of propellers running through it. The rotation of the propellers can pressurize the liquid at the top and push it to the bottom of the tank.

4. The multi-stage sedimentation tank for wastewater treatment according to claim 1, characterized in that, The bottom of the tank is integrally cast with a sediment pipe. A motor mounting base is fixedly connected to one side of the sediment pipe. A sewage discharge motor is installed on the top of the motor mounting base. A sewage discharge blade is connected to the output end of the sewage discharge motor via a coupling. The end of the sewage discharge blade away from the coupling is movably connected to the wall of the sediment pipe.

5. The multi-stage sedimentation tank for wastewater treatment according to claim 1, characterized in that, A sewage pipe is fixedly connected to the top of the tank. A solenoid valve is installed inside the sewage pipe. The sewage pipe passes through the tank and is connected to the upper part of the inner cylinder.

6. The multi-stage sedimentation tank for wastewater treatment according to claim 1, characterized in that, A clear liquid pipe is provided near the upper part of the tank wall, and a solenoid valve is installed inside the clear liquid pipe. The clear liquid pipe is connected to the tank cavity.

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