Aeration device for sewage treatment

Abstract

The present application relates to an aeration device for sewage treatment, comprising a plurality of aeration connecting pipes crisscrossing in a sewage pool, wherein the aeration connecting pipes are provided with a plurality of aeration components, wherein a rubber partition component is provided in the middle of the aeration connecting pipes for dividing the aeration connecting pipes into an upper chamber and a lower chamber, wherein one side of the rubber partition component is connected to the aeration connecting pipes, and the other side thereof abuts against the inner side wall of the aeration connecting pipes; an air intake device is connected to one of the ports of the aeration connecting pipes, and a control valve is provided at the connection between the aeration connecting pipes and the air intake device, wherein the control valve can control the airflow blown in by the air intake device to the upper chamber or the lower chamber of the aeration connecting pipes. The present application has the technical effect of increasing the conveying distance of high-pressure gas and facilitating the cleaning of sludge in the aeration connecting pipes.

Description

Technical Field

[0001] The present application relates to the technical field of aeration devices for sewage treatment, and in particular to an aeration device for sewage treatment. Background Art

[0002] Sewage treatment refers to the process in which urban sewage or industrial wastewater is concentrated in one or several places through drainage pipes in a city or industrial area, where it is purified using a sewage treatment system consisting of various treatment units, and then discharged into water bodies or reused after meeting the requirements.

[0003] Aeration equipment is a key equipment for biological treatment of sewage. Its function is to take certain technical measures to transfer oxygen in the air to the liquid in the aeration tank through the aeration device to supply the oxygen required for the metabolism of aerobic organisms, and at the same time fully and evenly mix the water in the tank to achieve the purpose of biological treatment. However, the structure of traditional sewage aeration devices is relatively simple, resulting in low oxygenation efficiency, high aeration energy consumption, and the bubbles generated are easy to merge; at the same time, the sewage of traditional aeration equipment can easily enter the connecting pipe on the lower side from the aeration head, resulting in a lot of silt in the connecting pipe, which is inconvenient to clean.

[0004] With respect to the above-mentioned related technologies, the inventor believes that there is a technical defect that the sludge in the connecting pipe is inconvenient to clean. Summary of the invention

[0005] In order to solve the above technical problems, the present application provides an aeration device for sewage treatment, which has the technical effect of increasing the transmission distance of high-pressure gas and facilitating the cleaning of sludge in the aeration connecting pipe.

[0006] The present application provides an aeration device for sewage treatment, which adopts the following technical solution:

[0007] An aeration device for sewage treatment comprises a plurality of aeration connecting pipes crisscrossing in a sewage pool, the aeration connecting pipes being provided with a plurality of aeration components, a rubber partition component for dividing the aeration connecting pipes into an upper chamber and a lower chamber being provided in the middle of the aeration connecting pipes, one side of the rubber partition component being connected to the aeration connecting pipes, and the other side being in contact with the inner side wall of the aeration connecting pipes; an air intake device being connected to one of the ports of the aeration connecting pipes, a control valve being provided at the connection between the aeration connecting pipes and the air intake device, the control valve being capable of controlling the airflow blown in by the air intake device to the upper chamber or the lower chamber of the aeration connecting pipes.

[0008] By adopting the above technical solution, the aeration connecting pipe is divided into an upper chamber and a lower chamber by the rubber partition component. When the aeration connecting pipe is aerated by injecting airflow into the aeration connecting pipe, the intake airflow generated in the air intake device will enter the aeration connecting pipe from the lower chamber. At this time, part of the airflow will be transmitted to a distant place, and at the same time, part of the airflow will flow to the upper chamber through the position where the rubber partition component and the aeration connecting pipe conflict, and then be discharged from the first aeration head. Due to the provision of the rubber partition component, the technical effect of transmitting high-pressure airflow farther can be achieved. At the same time, due to the drive of the airflow, one part of the rubber partition component The upper side will flip upward. If sewage flows into the first aeration head, the sewage will fall into the upper chamber and be stored on the rubber separation component in the upper chamber. The sludge after long-term sedimentation will also remain on the upper surface of the rubber separation component. When cleaning is needed, it is only necessary to adjust the control valve to supply air to the upper chamber. Then, driven by the airflow, the side of the rubber separation component that is in contact with the aeration connecting pipe will flip downward. At this time, the rubber separation component will be deformed, and the sludge that has been accumulated on it for a long time will follow the flip and enter the lower chamber. After that, water will be injected into the aeration connecting pipe, which makes it easy and convenient to clean some sludge in the aeration connecting pipe.

[0009] Preferably, each group of aeration components includes first aeration heads distributed in an annular manner, each of the first aeration heads is fixedly connected to an airflow tube communicating therewith, the airflow outlets of the airflow tubes in each group of aeration components are centrally symmetrically arranged, and a second aeration head is connected to the aeration connecting tube at the middle position of any two adjacent aeration components, and the second aeration head is a medium-hole aeration head.

[0010] By adopting the above technical solution, when in use, the first aeration heads contained in each group of aeration components are distributed in a ring shape, and an airflow tube is connected to each first aeration head. Through the airflow tube, each group of aeration components forms a rotating vortex, and multiple aeration components form multiple vortices. The vortex can accelerate the oxygenation effect of the aeration tank. At the same time, the edges of the vortices formed by two adjacent groups of aeration components will inevitably collide violently. At this time, a medium-hole aeration head is set here. Since the bubble discharge of the medium-hole aeration head is larger and this place is in a collision position, the overall oxygenation efficiency is improved.

[0011] Preferably, the first aeration head includes an aeration plate and a vertical connecting pipe connected to the aeration plate, the vertical connecting pipe is located at the lower side of the aeration plate, the airflow pipe is located at the side of the vertical connecting pipe and is connected to the vertical connecting pipe, and the outer end of the airflow pipe is provided with an airflow hole.

[0012] By adopting the above technical solution, the aeration plate of the first aeration head is located on the upper side of the vertical connecting pipe, so that the gas discharged through the aeration plate directly moves upward and mixes in the sewage, reducing the possibility of the bubbles generated by aeration mixing together. At the same time, air flow holes are provided at the outer end of the air flow tube, and more gas can be discharged through the air flow holes. It is also because of the existence of the air flow holes that more bubbles can be discharged through the air flow holes. The airflow flowing out of the air flow holes can not only play the role of stirring the sewage to form a vortex, but also can generate some bubbles, thereby improving the oxygenation efficiency of the sewage.

[0013] Preferably, a baffle is hinged at the lower edge of the connection between the airflow tube and the vertical connecting tube, an elastic fixing plate is fixedly provided on the upper edge of the baffle on one side of the airflow tube, a guide hole is opened on the elastic fixing plate, and the aperture of the guide hole gradually decreases from top to bottom.

[0014] By adopting the above technical solution, the baffle is hinged at the connection. When aeration is not performed, the baffle can rotate downward freely, so that the elastic fixing plate on the baffle hits the side wall of the vertical connecting pipe away from the airflow pipe, forming a positive V-shaped structure. At this time, the sewage residue falling on the baffle will first accumulate at the bottom of the V-shaped structure, thereby reducing the possibility of falling into the aeration connecting pipe. When airflow is injected into the aeration connecting pipe, the baffle rotates upward driven by the airflow through the aeration connecting pipe. At this time, the elastic fixing plate hits the vertical connecting pipe of the first aeration head, and the sludge in the V-shaped structure enters the airflow pipe when the baffle rotates. Afterwards, since the guide hole is opened on the elastic fixing plate, the airflow can also enter the airflow pipe through the elastic fixing plate and be finally discharged in the airflow pipe. At the same time, due to the presence of the elastic fixing plate, the aeration plate Part of the sewage that enters will drip onto the elastic fixing plate. The aperture of the guide holes opened on the elastic fixing plate gradually decreases from top to bottom, so that the sewage on the elastic fixing plate will be more easily discharged from the airflow pipe under the drive of the airflow, which can effectively reduce the possibility of sludge generation in the aeration connecting pipe. At the same time, when aeration is not performed, the baffle will rotate downward freely, so that the elastic fixing plate on the baffle will contact the side wall of the vertical connecting pipe away from the airflow pipe, forming a positive V-shaped structure. At this time, the sewage residue that falls on the baffle will first accumulate at the bottom of the V-shaped structure, thereby reducing the possibility of falling into the inside of the aeration connecting pipe, reducing the frequency of equipment maintenance, and improving practicality.

[0015] Preferably, an elastic protective pad is provided on the first aeration head, and the elastic protective pad is a hollow chamber. Second micropores are provided on the upper and lower sides of the hollow chamber, and a downward conical structure is provided at the position of the second micropores on the upper side. The second micropores on the upper side penetrate the conical structure so that the hollow chamber and the outside are connected through the second micropores on the upper side. A plurality of blocking particles are provided in the hollow chamber, and the diameter of the blocking particles is larger than the second micropores of the elastic protective pad.

[0016] By adopting the above technical solution, when aeration operation is performed, the air flow will pass through the second micropores on the lower side of the elastic protective pad to reach the hollow chamber. Since the second micropores on the upper side are provided with a downward conical structure, it is not easy for the blocking particles to block the second micropores on the upper side, and finally the entire device can continuously discharge bubbles. When there is no need to discharge bubbles, there is air in the aeration connecting pipe and sewage on the outside. At this time, there is negative pressure in the aeration connecting pipe. Under the pressure of the sewage, the blocking particles can easily seal the second micropores on the lower side, making it difficult for sewage to enter the aeration connecting pipe, thereby reducing the possibility of sewage entering the aeration connecting pipe.

[0017] Preferably, the vertical connecting pipe is arranged obliquely, the airflow pipe is located on the lower slope of the inclined vertical connecting pipe, and the connection position of the airflow pipe and the vertical connecting pipe is located on the lower side of the aeration plate.

[0018] By adopting the above technical solution, since the vertical connecting pipe is inclined, the lower side of the aeration disk is directly opposite to the elastic fixing plate, which further increases the receiving area of ​​the elastic fixing plate, so that most of the liquid entering the aeration connecting pipe from the upper side of the first aeration head will fall on the elastic fixing plate and finally be discharged from the airflow pipe driven by the airflow, thereby further reducing the possibility of sludge accumulation in the aeration connecting pipe and reducing the maintenance frequency of the product.

[0019] Preferably, the aeration connecting pipe includes an upper semi-ring structure, a lower semi-ring structure and a locking assembly connecting the two, and the rubber separation assembly includes a deformable side and a non-deformable side along its width direction and the two are fixedly connected, and the non-deformable side is located at the connecting position of the upper semi-ring structure and the lower semi-ring structure.

[0020] By adopting the above technical solution, the aeration connecting pipe is divided into two semi-ring structures. When assembling through the semi-ring structures, the rubber partition component at the middle position is convenient for installation and disassembly. At regular intervals, the aeration connecting pipe can be removed to clean the internal rubber partition component and the two semi-ring structures for next use.

[0021] Preferably, a grid-shaped protrusion is provided on the upper surface of the rubber partition assembly, the control valve has an upper opening and a lower opening, a support plate is provided between the upper opening and the lower opening of the control valve, and the support plate extends into the aeration connecting pipe.

[0022] By adopting the above technical solution, a grid-shaped protrusion is provided on the upper surface of the rubber separator component, so that when sewage enters the aeration connecting pipe from the first aeration head, most of the sludge can remain on the rubber separator component, and the sludge on the rubber separator component is easy to clean.

[0023] Preferably, an air supply device is provided at the air inlet of the aeration connecting pipe, and the air supply device comprises an air supply air pump and an aeration pressurizing component connected to the air supply air pump, and the aeration pressurizing component provides strong pressure.

[0024] By adopting the above technical solution, a high-intensity airflow can be provided by the air supply pump and the aeration pressurization component, so that the pressure is not significantly reduced during long-distance transmission, thereby improving the aeration effect.

[0025] In summary, the present application includes at least one of the following beneficial technical effects:

[0026] 1. The first aeration heads contained in each aeration assembly are distributed in a ring shape, and each first aeration head is connected to an airflow pipe, through which each aeration assembly forms a rotating vortex, and multiple aeration assemblies form multiple vortices. The vortex can accelerate the oxygenation effect of the aeration tank. At the same time, the edges of the vortices formed by two adjacent aeration assemblies will inevitably collide violently. At this time, a medium-hole aeration head is set here. Since the bubble discharge of the medium-hole aeration head is larger and this place is in a collision position, the overall oxygenation efficiency is improved.

[0027] 2. The aeration connecting pipe is divided into an upper chamber and a lower chamber by the rubber partition component. When the aeration connecting pipe is aerated by injecting airflow into the aeration connecting pipe, the intake airflow generated in the air intake device will enter the aeration connecting pipe from the lower chamber. At this time, part of the airflow will be transmitted to a distant place, and at the same time, part of the airflow will flow to the upper chamber through the rubber partition component and the aeration connecting pipe at the contact position, and then discharged from the first aeration head. Due to the provision of the rubber partition component, the technical effect of transmitting high-pressure airflow farther can be achieved. At the same time, driven by the airflow, one side of the rubber partition component will turn upward. If sewage flows into the first aeration head, the sewage will fall into the upper chamber and be stored on the rubber separation component in the upper chamber. The sludge after a long period of sedimentation will also remain on the upper surface of the rubber separation component. When cleaning is needed, it is only necessary to adjust the control valve to supply air to the upper chamber. Then, driven by the airflow, the side of the rubber separation component that is in contact with the aeration connecting pipe will flip downward. At this time, the rubber separation component will be deformed, and the sludge that has been accumulated on it for a long time will follow the flip and enter the lower chamber. After that, water will be injected into the aeration connecting pipe, which makes it easy and convenient to clean some sludge in the aeration connecting pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a schematic diagram of the overall structure of the embodiment.

[0029] Figure 2 It is a schematic diagram of the connection structure between the first aeration head and the airflow pipe in the embodiment.

[0030] Figure 3 yes Figure 2 Enlarged schematic diagram of part A in the middle.

[0031] Figure 4 Schematic diagram of the connection structure between the aeration connecting pipe and the rubber partition assembly in the embodiment.

[0032] Figure 5 It is a schematic diagram of the connection structure of the aeration connecting pipe, the control valve, the pressurizing device and the air supply pump in the embodiment.

[0033] Explanation of the reference numerals: 1. aeration connecting pipe; 11. upper semi-ring structure; 12. lower semi-ring structure; 13. rubber separator assembly; 131. non-deformable side; 132. deformable side; 14. control valve; 141. support plate; 15. aeration pressurizing assembly; 16. air supply pump; 2. aeration assembly; 21. first aeration head; 211. aeration disc; 2111. first micropore; 212. vertical connecting pipe; 213. elastic protective pad; 2131. hollow chamber; 2132. second micropore; 214. conical structure; 215. blocking particles; 22. second aeration head; 221. fixed pipe; 23. air flow pipe; 24. baffle; 241. elastic fixed plate; 242. guide hole. DETAILED DESCRIPTION

[0034] The following is combined with Figure 1-5 This application is described in further detail.

[0035] The present application discloses an aeration device for sewage treatment. Figure 1, including a plurality of aeration connecting pipes 1 arranged in a crisscross pattern, a plurality of aeration components 2 are arranged in a grid area formed by the aeration connecting pipes 1, each group of aeration components 2 includes a plurality of first aeration heads 21 distributed in an annular pattern, each first aeration head is provided with a plurality of first micropores, each first aeration head 21 includes an aeration plate 211 and a vertical connecting pipe 212 connected to the lower side of the aeration plate 211, an airflow pipe 23 in communication with the vertical connecting pipe 212 is fixedly connected to the side of the vertical connecting pipe 212, an airflow outlet is arranged on the airflow pipe 23, and the airflow outlet is tangent to the annular structure formed by the corresponding aeration component 2; and the airflow pipe 23 in each group The air flow outlets are arranged symmetrically with respect to the center, so that the air flow discharged from each group of air flow outlets stirs the sewage along the circumference, so that the sewage forms a vortex; a second aeration head 22 is arranged at the middle position of two adjacent groups of aeration components 2, and the second aeration head 22 is a middle hole aeration head. The second aeration head 22 is connected to the aeration connecting pipe 1 through a fixed pipe 221, so that the air flow in the aeration connecting pipe 1 can enter the second aeration head 22, and then a large number of bubbles are generated in the second aeration head 22; because the second aeration head 22 is located between the vortices formed by two adjacent aeration components 2, it can fully provide oxygen for the sewage and improve the aeration effect.

[0036] Reference Figure 2 and Figure 3 A baffle 24 is provided at the lower edge of the connection between the airflow pipe 23 and the vertical connecting pipe 212, which is hinged at the position and can be turned upward. An elastic fixing plate 241 is fixedly connected to the side of the upper edge of the baffle 24 close to the airflow pipe 23. A guide hole 242 is opened on the elastic fixing plate 241, and the guide hole 242 gradually becomes smaller from top to bottom. When the airflow enters the vertical connecting pipe 212 through the aeration connecting pipe 1 and then enters the first aeration head 21, the baffle 24 turns upward under the action of the airflow. At this time, the elastic fixing plate 241 will contact the inner side wall of the vertical connecting pipe 212. At the same time, the vertical connecting pipe 212 is inclined, and the airflow pipe 23 is located at the lower part of the inclined vertical connecting pipe 212. On the side slope, when the aeration connecting pipe 1 stops supplying air for a short period of time, the sewage in the sewage pool will form a backflow and enter the vertical connecting pipe 212 through the first micropores on the aeration disk 211. Due to the provision of the elastic fixing plate 241 and the guide holes 242 located on the elastic fixing plate 241, the sewage entering the vertical connecting pipe 212 will enter the airflow pipe 23 and be discharged from the airflow outlet together with the airflow in the airflow pipe 23. When the aeration device is working, although positive pressure is formed in the aeration connecting pipe 1, sewage is also easy to flow into the vertical connecting pipe 212. The combination of the elastic fixing plate 241 and the baffle 24 can effectively reduce the possibility of sewage flowing into the aeration connecting pipe 1.

[0037] Reference Figure 4A rubber separator component 13 is provided at the middle position of the aeration connecting pipe 1 to divide the aeration connecting pipe 1 into an upper chamber and a lower chamber. One side of the rubber separator component 13 is a non-deformable side 131, and the other side is a deformable side 132. The aeration connecting pipe 1 includes an upper semi-ring structure 11, a lower semi-ring structure 12 and a locking component for locking and fixing the two. The locking component can be a device that can be fixed, such as a bolt and a buckle. The non-deformable side 131 of the rubber separator component 13 is located at the upper semi-ring structure 11 and the lower semi-ring structure 12; the connection is clamped, and the other deformable side 132 contacts the inner wall of the aeration connecting pipe 1. A grid-shaped protrusion is provided on the upper surface of the rubber separator component 13.

[0038] Reference Figure 5 A control valve 14 is connected to the air inlet end of the aeration connecting pipe 1. The control valve 14 has an upper opening and a lower opening, and the upper opening or the lower opening can be controlled to be opened. The control valve 14 is installed at the end of the aeration connecting pipe 1, and its upper opening corresponds to the upper chamber of the aeration connecting pipe 1, and the lower opening of the control valve 14 corresponds to the lower chamber of the aeration connecting pipe 1; a supporting piece 141 is provided at the middle position of the control valve 14, and the supporting piece 141 is located at the lower side of the rubber separation component 13, which can conveniently support the rubber separation component 13; an aeration pressurizing component 15 is connected to the control valve 14, and an air supply pump 16 is connected to the aeration pressurizing component 15, and air is supplied by the air supply pump 16.

[0039] When aeration treatment is performed, the lower opening of the control valve 14 can be opened, and the pressurized air enters the lower chamber for long-distance transportation. At the same time, since one side of the rubber separator component 13 is a deformable side 132, the side can be bent upward to allow the airflow to enter the upper chamber, thereby realizing aeration work. At this time, if sewage enters the aeration connecting pipe 1, the sludge will accumulate in the area formed by the grid-shaped protrusions on the rubber separator component 13, and it is difficult to enter the lower chamber. When the vertical connecting pipe 212 needs to be cleaned, the upper opening of the control valve 14 can be controlled to be opened. At this time, the airflow enters the upper chamber, and the air pressure can be further increased. During aeration, the sludge on the rubber separator component 13 will enter the lower chamber under the bending action of the rubber separator component 13, which is convenient for cleaning sewage and sludge. Compared with the traditional cleaning of the aeration connecting pipe 1, this cleaning method has a better cleaning effect.

[0040] Replay Figure 2 and Figure 3The first aeration head 21 is sleeved with an elastic protective pad 213, the interior of the elastic protective pad 213 is a hollow chamber 2131, the upper and lower sides of the hollow chamber 2131 are both provided with second micropores 2132, a downwardly directed conical structure 214 is provided at the position of the second micropores 2132 on the upper side, the second micropores 2132 on the upper side penetrate the conical structure 214 so that the hollow chamber 2131 and the outside are connected through the second micropores 2132 on the upper side, a plurality of plugging particles 215 are provided in the hollow chamber 2131, and the diameter of the plugging particles 215 is larger than the second micropores 2132 of the elastic protective pad 213; The air flow will pass through the second micropores 2132 on the lower side of the elastic protective pad 213 to reach the hollow chamber 2131. Since the downward conical structure 214 is set at the position of the second micropores 2132 on the upper side, it is not easy for the blocking particles 215 to block the second micropores 2132 on the upper side, and finally the entire device can continuously discharge bubbles. When there is no need to discharge bubbles, there is air in the aeration connecting pipe 1 and sewage on the outside. At this time, there is negative pressure in the aeration connecting pipe 1. Under the pressure of the sewage, the blocking particles 215 can easily seal the second micropores 2132 on the lower side, making it difficult for sewage to enter the aeration connecting pipe 1.

[0041] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. An aeration device for sewage treatment, characterized in that: The invention comprises a plurality of aeration connecting pipes (1) arranged in a crisscross pattern in a sewage pool, a plurality of aeration components (2) being arranged on the aeration connecting pipes (1), a rubber partition component (13) being arranged in the middle of the aeration connecting pipes (1) for dividing the aeration connecting pipes (1) into an upper chamber and a lower chamber, one side of the rubber partition component (13) being connected to the aeration connecting pipes (1) and the other side being in contact with the inner side wall of the aeration connecting pipes (1); one of the ports of the aeration connecting pipes (1) being connected to an air intake device, and a connection between the aeration connecting pipes (1) and the air intake device being provided A control valve (14) is provided, and the control valve (14) is capable of controlling the airflow blown in by the air intake device to the upper chamber or the lower chamber of the aeration connecting pipe (1); the aeration connecting pipe (1) comprises an upper semi-ring structure (11), a lower semi-ring structure (12), and a locking assembly connecting the two; the rubber separation assembly (13) comprises a deformable side (132) and a non-deformable side (131) along its width direction, and the two are fixedly connected; the non-deformable side (131) is located at the connection position between the upper semi-ring structure (11) and the lower semi-ring structure (12).

2. The aeration device for sewage treatment according to claim 1, characterized in that: Each group of aeration components (2) comprises first aeration heads (21) distributed in an annular manner, each of the first aeration heads (21) is fixedly connected to an airflow pipe (23) communicating therewith, the airflow outlets of the airflow pipes (23) in each group of aeration components (2) are centrally symmetrically arranged, and the aeration connecting pipe (1) at the middle position of any two adjacent aeration components (2) is connected to a second aeration head (22), and the second aeration head (22) is a medium-hole aeration head.

3. The aeration device for sewage treatment according to claim 2, characterized in that: The first aeration head (21) comprises an aeration plate (211) and a vertical connecting pipe (212) connected to the aeration plate (211); the vertical connecting pipe (212) is located at the lower side of the aeration plate (211); the airflow pipe (23) is located at the side of the vertical connecting pipe (212) and is connected to the vertical connecting pipe (212); and an airflow hole is provided at the outer end of the airflow pipe (23).

4. The aeration device for sewage treatment according to claim 2, characterized in that: A baffle (24) is hingedly connected to the lower edge of the connection between the airflow pipe (23) and the vertical connection pipe (212); an elastic fixing plate (241) is fixedly arranged on the upper edge of the baffle (24) at one side of the airflow pipe (23); a guide hole (242) is opened on the elastic fixing plate (241); and the diameter of the guide hole (242) gradually decreases from top to bottom.

5. The aeration device for sewage treatment according to claim 2, characterized in that: The first aeration head (21) is sleeved with an elastic protective pad (213), the elastic protective pad (213) is a hollow chamber (2131), the upper side and the lower side of the hollow chamber (2131) are both provided with second micropores (2132), a downward conical structure (214) is provided at the position of the second micropores (2132) on the upper side, the second micropores (2132) on the upper side penetrate the conical structure (214) so ​​that the hollow chamber (2131) and the outside are connected through the second micropores (2132) on the upper side, and a plurality of blocking particles (215) are provided in the hollow chamber (2131), the diameter of the blocking particles (215) being larger than the second micropores (2132) of the elastic protective pad (213).

6. The aeration device for sewage treatment according to claim 3, characterized in that: The vertical connecting pipe (212) is arranged at an angle, the airflow pipe (23) is located on the lower slope of the inclined vertical connecting pipe (212), and the connection position between the airflow pipe (23) and the vertical connecting pipe (212) is located on the lower side of the aeration plate (211).

7. The aeration device for sewage treatment according to claim 1, characterized in that: The upper surface of the rubber partition assembly (13) is provided with a grid-shaped protrusion, the control valve (14) has an upper opening and a lower opening, a support plate (141) is provided between the upper opening and the lower opening of the control valve (14), and the support plate (141) extends into the aeration connecting pipe (1).

8. The aeration device for sewage treatment according to claim 1, characterized in that: An air supply device is provided at the air inlet of the aeration connection pipe (1), and the air supply device comprises an air supply pump (16) and an aeration pressurizing component (15) connected to the air supply pump (16), and the aeration pressurizing component (15) provides strong pressure.

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