Sewage treatment aerobic tank

Abstract

The utility model discloses a sewage treatment aerobic tank, which comprises a pipeline, a tank body, an aeration assembly and an impurity removal assembly, the pipeline comprises an air inlet pipe, a U-shaped pipe and a connecting pipe, the air inlet pipe is arranged on the side wall of the U-shaped pipe, and the connecting pipe is communicated with the air outlet end of the U-shaped pipe; the air inlet pipe is communicated with a branch pipe; the aeration assembly is arranged in the tank body, and the connecting pipe penetrates through the tank body and is communicated with the aeration pipe; the impurity removal assembly comprises a first filter screen, a dust collector, a support, a rotating shaft, fan blades and brush strips, the dust collector is arranged at the air inlet end of the U-shaped pipe, the support is arranged in the U-shaped pipe, the rotating shaft is arranged in the middle of the support, the filter screen is arranged in the U-shaped pipe, the brush strips are arranged outside the rotating shaft, and the fan blades are arranged on the outer side of the rotating shaft and lower than the air inlet pipe. According to the sewage treatment aerobic tank disclosed by the utility model, dust collection on the first filter screen is facilitated after aeration or when aeration is suspended, and the first filter screen is swept and cleaned in cooperation with the brush strips, so that the cleaning effect is good, and the filtering effect of the first filter screen is ensured.

Description

Technical Field

[0001] The utility model relates to the field of sewage treatment, in particular to an aerobic tank for sewage treatment. Background Art

[0002] In the aerobic tank, aerobic microorganisms in the filler can decompose the organic matter in the wastewater. In a secondary aerobic tank disclosed in the publication number CN218620483U, through the mutual cooperation of parts such as a connecting pipe, a U-shaped pipe, an air inlet pipe, an aeration device, a baffle plate, a filter net, a cleaning device, and a collection mechanism, when the external blower conveys air, the filter net can filter impurities in the air, thereby improving the gas quality and ensuring the purification effect. And the cleaning device can clean the impurities on the surface of the filter net to avoid blockage. However, the cleaning device only works when the blower faces the filter net. Even if the impurities on the filter net are swept down, due to the opposite direction of the air blowing and the falling direction of the impurities, when the wind force is greater than the gravity of the impurities, the impurities are not easy to fall, and some smaller and irregular impurities turn or are squeezed during the sweeping process, and are more likely to pass through the filter net under the action of the wind force, which instead reduces the filtering effect of the filter net. Summary of the Utility Model

[0003] In view of the above problems, the utility model provides an aerobic tank for sewage treatment, which is convenient for sucking dust from the first filter net after aeration or when aeration is suspended, and cooperates with a brush strip to sweep and clean the first filter net, with good cleaning effect and ensuring the filtering effect of the first filter net.

[0004] The technical solution of the utility model is as follows:

[0005] An aerobic tank for sewage treatment, comprising:

[0006] A pipeline, including an air inlet pipe, a U-shaped pipe, and a connecting pipe. The two ends of the U-shaped pipe are arranged downward, which are an air inlet end and an air outlet end respectively. The air inlet pipe is arranged on the side wall of the U-shaped pipe on the air inlet end side, and the connecting pipe is communicated with the air outlet end of the U-shaped pipe; a switchable branch pipe is communicated with the air inlet pipe;

[0007] An aeration assembly, arranged in the tank body, including an aeration pipe and an aeration disc arranged on the aeration pipe. The connecting pipe passes through the tank body and is communicated with the aeration pipe;

[0008] An impurity removal assembly, arranged on the side where the air inlet end of the U-shaped pipe is located, including a first filter net, a vacuum cleaner, a bracket, a rotating shaft, a fan blade, and a brush strip. The vacuum cleaner is arranged at the air inlet end of the U-shaped pipe, the bracket is arranged in the U-shaped pipe, the rotating shaft is rotatably arranged in the middle of the bracket, the first filter net is arranged in the U-shaped pipe above the air inlet pipe, the brush strip is arranged outside the rotating shaft and fits at the bottom of the first filter net, and the fan blade is arranged outside the rotating shaft below the air inlet pipe.

[0009] In a further technical solution, a pipe cap is provided at the end of the branch pipe.

[0010] In a further technical solution, a first valve is provided at the connection of the U-shaped pipe to the vacuum cleaner.

[0011] In a further technical solution, a second valve is provided in the middle of the U-shaped pipe.

[0012] In a further technical solution, a second filter screen is provided in the branch pipe.

[0013] The beneficial effects of the present utility model are as follows:

[0014] 1. When aerating the aerobic tank, the air inlet pipe can be externally connected to a blower device, the branch pipe is closed, and the gas enters the aeration pipe and the aeration disc in the tank body through the U-shaped pipe and the connecting pipe for aeration. The first filter screen can be cleaned after aeration. The branch pipe can be opened, and the vacuum cleaner can be turned on. The air flows from the branch pipe to the vacuum cleaner and passes through the fan blade on the way. The fan blade can be rotated to make the brush strip on the rotating shaft brush the first filter screen to clean the first filter screen. Since the wind direction is downward at this time, the dust and impurities on the first filter screen are easy to fall and are sucked in by the vacuum cleaner, with good cleaning effect and improving the subsequent filtering function of the first filter screen;

[0015] 2. The first valve can be closed during aeration to prevent part of the gas blown by the blower from blowing towards the vacuum cleaner;

[0016] 3. The second filter screen at the branch pipe can reduce the entry of excess impurities in the outside air during dust collection. Description of the Drawings

[0017] Figure 1 is a schematic structural diagram of an aerobic tank for sewage treatment according to an embodiment of the present utility model;

[0018] Figure 2 is a partial structural diagram of the impurity removal component according to an embodiment of the present utility model.

[0019] Description of the Reference Numerals:

[0020] 11. Air inlet pipe; 12. U-shaped pipe; 13. Connecting pipe; 14. Branch pipe; 15. Pipe cap; 16. First valve; 17. Second valve; 20. Tank body; 31. Aeration pipe; 32. Aeration disc; 41. First filter screen; 42. Vacuum cleaner; 43. Bracket; 44. Rotating shaft; 45. Fan blade; 46. Brush strip. Detailed Embodiments

[0021] The following further describes the embodiments of the present utility model with reference to the drawings.

[0022] Embodiment:

[0023] As Figure 1 - Figure 2As shown in the figure, an aerobic tank for sewage treatment includes a pipeline, a tank body 20, an aeration component, and an impurity removal component. The pipeline includes an air inlet pipe 11, a U-shaped pipe 12, and a connecting pipe 13. The two ends of the U-shaped pipe 12 are arranged downward, which are an air inlet end and an air outlet end respectively. The air inlet pipe 11 is arranged on the side wall of the U-shaped pipe 12 on the side of the air inlet end, and the connecting pipe 13 is communicated with the air outlet end of the U-shaped pipe 12; a switchable branch pipe 14 is communicated with the air inlet pipe 11; the aeration component is arranged in the tank body 20 and includes an aeration pipe 31 and an aeration disc 32 arranged on the aeration pipe 31, and the connecting pipe 13 passes through the tank body 20 and is communicated with the aeration pipe 31; the impurity removal component is arranged on the side where the air inlet end of the U-shaped pipe 12 is located and includes a first filter screen 41, a vacuum cleaner 42, a bracket 43, a rotating shaft 44, a fan blade 45, and a brush strip 46. The vacuum cleaner 42 is arranged at the air inlet end of the U-shaped pipe 12, the bracket 43 is arranged in the U-shaped pipe 12, and the bracket 43 can be any frame body that allows gas to pass through. The rotating shaft 44 is rotatably arranged in the middle of the bracket 43. The first filter screen 41 is arranged in the U-shaped pipe 12 above the air inlet pipe 11, and the bottom side of the first filter screen 41 can be arranged close to the top side of the air inlet pipe 11, so that the flowing air can pass near the first filter screen 41 when the vacuum cleaner 42 sucks air, and impurities are more likely to fall. The brush strip 46 is arranged outside the rotating shaft 44 and fits the bottom of the first filter screen 41, and the fan blade 45 is arranged outside the rotating shaft 44 below the air inlet pipe 11.

[0024] The working principle of the above technical solution is as follows:

[0025] When the aerobic tank is aerated, the air inlet pipe 11 can be externally connected to a blower device, and the branch pipe 14 is closed. The gas enters the aeration pipe 31 and the aeration disc 32 in the tank body 20 through the U-shaped pipe 12 and the connecting pipe 13 for aeration. The first filter screen 41 can be cleaned after aeration. The branch pipe 14 can be opened, and the vacuum cleaner 42 can be turned on. The air flows from the branch pipe 14 to the vacuum cleaner 42 and passes through the fan blade 45 on the way. The fan blade 45 can be rotated to make the brush strip 46 on the rotating shaft 44 brush the first filter screen 41 to clean the first filter screen 41. Since the wind direction is downward at this time, the dust and impurities on the first filter screen 41 are easy to fall and are sucked in by the vacuum cleaner 42, with good cleaning effect and improving the subsequent filtering function of the first filter screen 41.

[0026] In another embodiment, as Figure 1 shown, a pipe cap 15 is arranged at the end of the branch pipe 14. The pipe cap 15 can be threadedly connected to the end of the branch pipe 14. In addition, a sealing ring can be arranged in the pipe cap 15 to avoid air leakage.

[0027] In another embodiment, as Figure 1 shown, a first valve 16 is arranged at the connection between the U-shaped pipe 12 and the vacuum cleaner 42, and a second valve 17 is arranged in the middle of the U-shaped pipe 12. The first valve 16 can be closed during aeration to prevent part of the gas blown in by the blower from blowing towards the vacuum cleaner 42. The second valve 17 can be closed when the vacuum cleaner 42 sucks air to prevent negative pressure from being formed in the U-shaped pipe 12.

[0028] In another embodiment, a second filter screen is provided in the branch pipe 14. The second filter screen at the branch pipe 14 can reduce the entry of excessive impurities in the outside air during dust suction.

[0029] The above-described embodiments only represent the specific implementation manners of the present utility model, and the description thereof is relatively specific and detailed. However, it should not be construed as a limitation to the scope of the patent of the present utility model. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present utility model, several deformations and improvements can still be made, and these all belong to the protection scope of the present utility model.

Claims

1. An aerobic tank for sewage treatment, characterized in that, it includes: A pipeline, including an air inlet pipe, a U-shaped pipe and a connecting pipe. The two ends of the U-shaped pipe are arranged downward, which are an air inlet end and an air outlet end respectively. The air inlet pipe is arranged on the side wall of one side of the air inlet end of the U-shaped pipe, and the connecting pipe is communicated with the air outlet end of the U-shaped pipe; A switchable branch pipe is communicated on the air inlet pipe; An aeration component, arranged in the tank body, including an aeration pipe and an aeration disc arranged on the aeration pipe. The connecting pipe passes through the tank body and is communicated with the aeration pipe; A impurity removal component, arranged on the side where the air inlet end of the U-shaped pipe is located, including a first filter screen, a vacuum cleaner, a bracket, a rotating shaft, a fan blade and a brush strip. The vacuum cleaner is arranged at the air inlet end of the U-shaped pipe, the bracket is arranged inside the U-shaped pipe, the rotating shaft is rotatably arranged in the middle of the bracket, the first filter screen is arranged inside the U-shaped pipe above the air inlet pipe, the brush strip is arranged outside the rotating shaft and fits the bottom of the first filter screen, and the fan blade is arranged outside the rotating shaft below the air inlet pipe.

2. The aerobic tank for sewage treatment according to claim 1, characterized in that, A pipe cap is arranged at the end of the branch pipe.

3. The aerobic tank for sewage treatment according to claim 1, characterized in that, A first valve is arranged at the connection between the U-shaped pipe and the vacuum cleaner.

4. The aerobic tank for sewage treatment according to claim 3, characterized in that, A second valve is arranged in the middle of the U-shaped pipe.

5. The aerobic tank for sewage treatment according to claim 1, characterized in that, A second filter screen is arranged in the branch pipe.

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