Aeration system suitable for MBBR (Moving Bed Biofilm Reactor) filler

Abstract

The utility model provides an aeration system suitable for MBBR (Moving Bed Biofilm Reactor) filler, and relates to the technical field of sewage treatment. The bottom of the aeration system reaction tank is provided with a telescopic bracket, and the top of the aeration system reaction tank is provided with a lifting assembly; the aeration structure comprises a main aeration pipe and an air distribution pipe, the air distribution pipe is installed on the telescopic support and connected with the lifting assembly, the main aeration pipe is connected with the air distribution pipe through a telescopic pipe, a plurality of jet aerators are arranged at the top of the air distribution pipe, aeration synergistic releasers are arranged on the jet aerators, and filler blocking nets are arranged on the outer sides of the jet aerators; the compression fan is connected with the aeration main pipe through an air supply pipe, and a filter unit is arranged on the air supply pipe. According to the aeration system, the aeration uniformity can be improved, and the sewage treatment efficiency and treatment effect are improved.

Description

An aeration system suitable for MBBR packing Technical Field

[0001] This utility model relates to the field of wastewater treatment technology, and more specifically, to an aeration system suitable for MBBR packing. Background Technology

[0002] Aerobic tanks can enhance wastewater treatment using MBBR (Medium-Modulated Batch Reactor) packing. The tank provides a certain wastewater retention time, and the aeration structure supplies air to the wastewater, meeting the oxygen requirements of aerobic microorganisms and ensuring sufficient mixing between the wastewater and the packing. The aeration structure typically uses an air compressor to deliver air through pipelines, with air diffusion pipes laid flat at the bottom of the tank to disperse the air bubbles. However, wastewater sediment or packing material in the aerobic tank can easily settle at the air outlet of the aeration pipes, causing blockage.

[0003] To address the aforementioned issues, patent CN219907211U discloses an aeration device comprising a main pipe positioned above an aeration tank and an air compressor for supplying air to the main pipe. The aeration tank contains multiple branch pipes arranged from top to bottom and distributed around the perimeter of the aeration tank. Multiple through holes are provided on the arc-shaped sidewalls of the branch pipes, with the through holes extending along the length of the branch pipes.

[0004] Regarding the aforementioned existing technology, multiple vertically installed branch pipes are set around the perimeter of the tank, and through holes are opened on the branch pipes to output aeration bubbles. This makes it less likely for the air outlets to be blocked by sediment. However, the aforementioned existing technology still has the following disadvantages: Since the branch pipes are set vertically around the perimeter of the tank, it is not convenient to adjust the branch pipes, making it difficult to effectively and fully cover the entire tank with aeration, which can easily lead to uneven aeration and aeration blind spots. Summary of the Invention

[0005] The purpose of this invention is to provide an aeration system suitable for MBBR packing material, which can improve aeration uniformity and enhance wastewater treatment efficiency and effect.

[0006] This utility model is achieved through the following technical solution:

[0007] An aeration system suitable for MBBR packing includes:

[0008] The reaction tank is equipped with a telescopic support at the bottom and a lifting assembly at the top.

[0009] The aeration structure includes an aeration main pipe and an air distribution pipe. The air distribution pipe is installed on a telescopic bracket and connected to a lifting component. The aeration main pipe and the air distribution pipe are connected through a telescopic pipe. Several jet aerators are provided at the top of the air distribution pipe. An aeration enhancement release device is provided on the jet aerator. A packing mesh is provided on the outside of the jet aerator.

[0010] The compressed blower is connected to the main aeration pipe through an air supply pipe, which is equipped with a filter unit.

[0011] Furthermore, multiple gas distribution pipes are horizontally distributed within the reaction tank, and each gas distribution pipe is connected to the telescopic pipe.

[0012] Furthermore, the telescopic support includes a frame and a telescopic rod, with the bottom of the telescopic rod fixedly connected to the bottom of the reaction tank and the top of the telescopic rod fixedly connected to the frame.

[0013] Furthermore, the top of the reaction tank is provided with an installation plate, and an installation block is slidably provided on the installation plate. A push rod is provided on the installation block, and the driving end of the push rod is connected to the gas distribution pipe.

[0014] Furthermore, a push rod two is provided at one end of the reaction tank, and the driving end of the push rod two is connected to the mounting block.

[0015] Furthermore, the filtration unit includes a filter box, and a filter core is installed inside the filter box.

[0016] Furthermore, the air supply pipe is also connected to an oxygenation pipe, which is connected to an oxygen generator, and a solenoid valve is installed on the oxygenation pipe.

[0017] Furthermore, the air supply duct is equipped with a flow control valve.

[0018] The technical solution of this utility model has at least the following advantages and beneficial effects:

[0019] This invention utilizes a lifting assembly to drive the air distribution pipe within the reaction tank, adjusting its height to achieve thorough aeration of the entire tank and improve aeration efficiency. The jet aerator provides dissolved oxygen through aeration, promoting nitrifying bacteria activity. Simultaneously, hydraulic shearing refines sludge particles and enhances the movement of the MBBR packing material within the reaction tank, improving wastewater treatment efficiency. The aeration enhancement release device optimizes jet gas diffusion efficiency, improves dissolved oxygen control precision, and further enhances wastewater treatment efficiency. The packing mesh intercepts packing material or impurities within the reaction tank, preventing clogging of the jet aerator. The filtration unit filters the air used for aeration to prevent pipe blockage. Attached Figure Description

[0020] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 is a schematic diagram of the aeration system suitable for MBBR packing provided in Embodiment 1 of this utility model;

[0022] Figure 2 is a top view of the reaction tank provided in Embodiment 1 of this utility model;

[0023] Figure 3 is a cross-sectional view of the filter unit provided in Embodiment 1 of this utility model.

[0024] Icons: 1-Reaction tank, 2-Telescopic rod, 3-Frame, 4-Mounting plate, 5-Mounting block, 6-Push rod one, 7-Push rod two, 8-Main aeration pipe, 9-Air distribution pipe, 10-Telescopic pipe, 11-Jet aerator, 12-Aeration enhancement release device, 14-Compressed blower, 15-Air supply pipe, 16-Filter unit, 17-Oxygenation pipe, 18-Oxygen generator, 19-Solenoid valve, 20-Flow control valve, 161-Filter box, 162-Filter core. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0026] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0027] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0028] In the description of this utility model, it should be noted that if terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" appear to indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product is in use, they are only for the convenience of describing this utility model and simplifying the description, 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, and therefore should not be construed as a limitation of this utility model.

[0029] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0030] Example 1

[0031] As shown in Figures 1-3, this embodiment provides an aeration system suitable for MBBR packing, including:

[0032] Reaction tank 1 is equipped with a telescopic support at the bottom and a lifting assembly at the top;

[0033] The aeration structure includes an aeration main pipe 8 and an air distribution pipe 9. The air distribution pipe 9 is installed on a telescopic bracket and connected to a lifting component. The aeration main pipe 8 and the air distribution pipe 9 are connected through a telescopic pipe 10. The top of the air distribution pipe 9 is provided with several jet aerators 11. The jet aerators 11 are provided with aeration enhancement release devices 12. The outer side of the jet aerators 11 is provided with a packing mesh.

[0034] The compressed blower 14 is connected to the aeration main pipe 8 through the air supply pipe 15, and the air supply pipe 15 is equipped with a filter unit 16.

[0035] The air distribution pipe 9 is moved within the reaction tank 1 by a lifting assembly (during which the telescopic pipe 10 extends or shortens), adjusting its height to achieve full aeration of the entire tank and improve aeration efficiency. The jet aerator 11 provides dissolved oxygen through aeration, promoting nitrifying bacteria activity. Simultaneously, hydraulic shearing refines sludge particles and enhances the movement of the MBBR packing material within the reaction tank, improving wastewater treatment efficiency. The aeration enhancement release device 12 optimizes jet gas diffusion efficiency, improves dissolved oxygen control precision, and enhances wastewater treatment efficiency. The packing mesh intercepts packing material or impurities within the reaction tank 1, preventing clogging of the jet aerator 11. The filter unit 16 filters the air used for aeration to prevent pipe blockage.

[0036] In this embodiment, multiple air distribution pipes 9 are horizontally distributed within the reaction tank 1, and each air distribution pipe 9 is connected to the telescopic pipe 10. Multiple air distribution pipes 9 can increase the number of aeration points, improve the dissolved oxygen content in the reaction tank 1 per unit time, and accelerate the wastewater treatment speed.

[0037] In this embodiment, the telescopic support includes a frame 3 and a telescopic rod 2. The bottom of the telescopic rod 2 is fixedly connected to the bottom of the reaction tank 1, and the top of the telescopic rod 2 is fixedly connected to the frame 3. The gas distribution pipe 9 can be connected to the frame 3 via an elastic element, such as a spring or elastic rope. The cooperation between the frame 3 and the telescopic rod 2 can improve the stability of the gas distribution pipe 9 during movement.

[0038] In this embodiment, the reaction tank 1 is provided with a mounting plate 4 at the top, a mounting block 5 is slidably mounted on the mounting plate 4, and a push rod 6 is provided on the mounting block 5. The driving end of the push rod 6 is connected to the gas distribution pipe 9. The push rod 6 drives the gas distribution pipe 9 to move vertically. The mounting plate 4 has a groove at the top, and the mounting block 5 is slidably mounted in the groove.

[0039] In this embodiment, one end of the reaction tank 1 is equipped with a second push rod 7, the driving end of which is connected to the mounting block 5. The second push rod 7 drives the mounting block 5 to move horizontally, simultaneously moving the first push rod 6 horizontally, thereby allowing the air distribution pipe 9 to move horizontally, enabling better and more uniform aeration of the entire tank. The first push rod 6 and the second push rod 7 can be electric push rods, electric telescopic rods, or cylinders.

[0040] In this embodiment, the filtration unit 16 includes a filter box 161, and a filter element 162 is fitted inside the filter box 161. The filter element 162 is engaged with the filter box 161, which facilitates the maintenance and replacement of the filter element 162 and ensures the filtration effect of the filtration unit 16.

[0041] In this embodiment, the air supply pipe 15 is also connected to an oxygenation pipe 17, which is connected to an oxygen generator 18. An electromagnetic valve 19 is installed on the oxygenation pipe 17. The oxygen generator 18 supplies high-concentration oxygen to the reaction tank 1, further improving the oxygenation capacity. This dissolves oxygen from the air into the wastewater, meeting the oxygen requirements of aerobic microorganisms and ensuring sufficient mixing between the wastewater and activated sludge, thus meeting the requirements for efficient aeration.

[0042] In this embodiment, the air supply pipe 15 is equipped with a flow control valve 20.

[0043] The working principle of an aeration system suitable for MBBR packing is as follows: Wastewater flows into reaction tank 1, and MBBR packing is added to reaction tank 1. Compressed blower 14 delivers air sequentially through air supply pipe 15, aeration main pipe 8, and air distribution pipe 9, and diffuses the air in a jet manner within the reaction tank through jet aerator 11 and aeration enhancement release device 12. Push rod 1 6 can drive the air distribution pipe 9 to move up and down within reaction tank 1, and push rod 2 7 can drive the air distribution pipe 9 to move horizontally within reaction tank 1. Through the multi-directional movement of the air distribution pipe 9, full aeration of the entire tank is achieved, meeting the requirements of high-efficiency aeration.

[0044] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. An aeration system suitable for MBBR packing, characterized in that, include: The reaction tank has a telescopic support at the bottom and a lifting assembly at the top; the aeration structure includes an aeration main pipe and an air distribution pipe. The air distribution pipe is installed on the telescopic support and connected to the lifting assembly. The aeration main pipe and the air distribution pipe are connected through the telescopic pipe. Several jet aerators are installed on the air distribution pipe. Each jet aerator is equipped with an aeration enhancement release device. A packing screen is installed on the outside of the jet aerators; a compressed air fan is connected to the aeration main pipe through an air supply pipe. A filter unit is installed on the air supply pipe.

2. The aeration system suitable for MBBR packing according to claim 1, characterized in that, Multiple gas distribution pipes are horizontally distributed within the reaction tank, and each gas distribution pipe is connected to the telescopic pipe.

3. The aeration system suitable for MBBR packing according to claim 1, characterized in that, The telescopic support includes a frame and a telescopic rod. The bottom of the telescopic rod is fixedly connected to the bottom of the reaction tank, and the top of the telescopic rod is fixedly connected to the frame.

4. The aeration system suitable for MBBR packing according to claim 1, characterized in that, The top of the reaction tank is provided with an installation plate, and an installation block is slidably provided on the installation plate. A push rod is provided on the installation block, and the driving end of the push rod is connected to the gas distribution pipe.

5. The aeration system suitable for MBBR packing according to claim 4, characterized in that, The reaction tank is provided with a push rod 2 at one end, and the driving end of the push rod 2 is connected to the mounting block.

6. The aeration system suitable for MBBR packing according to claim 1, characterized in that, The filtration unit includes a filter box, and a filter core is installed inside the filter box.

7. The aeration system suitable for MBBR packing according to claim 1, characterized in that, The air supply pipe is also connected to an oxygenation pipe, which is connected to an oxygen generator, and a solenoid valve is installed on the oxygenation pipe.

8. The aeration system suitable for MBBR packing according to claim 1, characterized in that, The air supply pipe is equipped with a flow control valve.

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