一种生物接触氧化装置

Abstract

本实用新型涉及一种生物接触氧化装置，包括接触氧化池、立体网格填料及曝气装置，立体网格填料设置于接触氧化池内，立体网格填料沿竖直方向为立体管状结构，沿水平方向为由多个立体管状结构相连构成的网状结构，立体管状结构由多根丝条弯曲交错缠绕构成，各丝条之间形成微孔结构；曝气装置包括位于立体网格填料下方的气室构件以及与气室构件连接的供气装置，气室构件设置曝气孔。上述生物接触氧化装置用大气泡曝气配合立体网格填料的几何结构共同解决曝气装置与立体网格填料易堵塞的问题，延长了填料与曝气装置清理维护周期，在整个运行生命周期无需进行填料与曝气装置的水下维护作业，减少了运营维护及设备折旧成本，减小了作业风险。

Claims

1. A biological contactor apparatus, characterized by, include: Contact oxidation tank (1); Three-dimensional mesh packing (2) is set in the contact oxidation tank (1). The three-dimensional mesh packing (2) is a three-dimensional tubular structure in the vertical direction and a mesh structure composed of multiple three-dimensional tubular structures connected together in the horizontal direction. The three-dimensional tubular structure is composed of multiple filaments that serve as microbial carriers, which are bent and intertwined. Microporous structures for water and air permeability are formed between each filament. An aeration device is provided, comprising a plurality of air chamber components (3) disposed in the contact oxidation tank (1) and an air supply device (6) connected to the air chamber components (3). The air chamber components (3) are located below the three-dimensional mesh packing (2). At least one side of the air chamber wall of the air chamber component (3) is provided with an aeration hole (3e). The slot at the bottom of the air chamber component (3) faces the bottom of the contact oxidation tank (1).

2. The biological contactor of claim 1 wherein, The filaments are polymer fiber filaments with a diameter of 0.5 mm to 5 mm.

3. The biological contactor of claim 2, wherein The polymer material fiber filaments are made of high-density polyethylene or thermoplastic polyurethane elastomer.

4. The biological contactor of claim 1 wherein, The pore size of the microporous structure is 1 mm to 10 mm.

5. The biological contactor of claim 1 wherein, The inner diameter of the three-dimensional tubular structure is 20 mm to 100 mm.

6. The biological contactor of claim 5, wherein the biological contactor is a rotating biological contactor. The center-to-center distance between two adjacent three-dimensional tubular structures is 25mm to 120mm.

7. The biological contactor according to any one of claims 1 to 6, wherein The air chamber component (3) is a groove-shaped structure with a slot at the bottom and closed in the other directions. At least one of the three locations of the air chamber component (3) – the top, the end, and the side – is provided with an air inlet (3d). An air inlet pipe (3-1) connected to the air supply device (6) is provided at the air inlet (3d).

8. The biological contactor of claim 7, wherein the biological contactor is a rotating biological contactor. An air inlet (3d) is provided at the top of the air chamber component (3), and a flow guiding device is provided inside the air chamber component (3). The flow guiding device is arranged opposite to the air inlet (3d), and / or the flow guiding device is connected to the air inlet (3d). The flow guiding device is used to make the airflow output by the air supply device (6) flow in the air chamber component (3) in a preset direction.

9. The biological contactor of claim 8, wherein, The flow guiding device is a flow guide plate (3-2), the opposite two side edges of the flow guide plate (3-2) are connected to the opposite two side air chamber walls of the air chamber component (3), and the flow guide plate (3-2) is located below the air inlet (3d).

10. The biological contactor of claim 9, wherein, The guide plate (3-2) includes two symmetrically arranged plate portions. The first ends of the two plate portions are connected to each other below the air inlet (3d), and the second ends of the two plate portions are far apart from each other. The plate portions are inclined from the first end in a direction away from the air inlet (3d) so that the included angle between the two plate portions is 90° to 150°. The horizontal distance between the second ends of the two plate portions is 3 to 10 times the diameter of the air inlet (3d).

11. The biological contactor of claim 8 wherein, The flow guiding device is a flow guiding pipe (3-3), which includes an inlet pipe section and multiple outlet pipe sections. Each outlet pipe section is evenly distributed around the inlet pipe section and connected to the inlet pipe section. The end of the inlet pipe section away from the outlet pipe section is connected to the air inlet (3d).

12. The biological contactor of any one of claims 1 to 6, wherein the biological contactor is a trickling filter. The distance between the outer walls of the two air chamber components (3) in the width direction relative to the outer walls of the two air chambers is 20mm to 100mm, and the height from top to bottom is 100mm to 250mm. The length of the air chamber component (3) is less than the width of the contact oxidation tank (1), and the difference between the two is less than or equal to 3 times the center distance between two adjacent aeration holes (3e).

13. The biological contactor of any one of claims 1 to 6, wherein the biological contactor is a trickling filter. The aeration holes (3e) have a diameter of 2 mm to 8 mm.

14. The biological contactor of any one of claims 1 to 6, wherein the biological contactor is a trickling filter. The air chamber wall of the air chamber component (3) is provided with one or more rows of aeration holes (3e). Each row of aeration holes (3e) includes multiple aeration holes (3e) spaced apart in the horizontal direction. The center distance between two adjacent aeration holes (3e) in the same row is 30mm to 300mm, and the center distance between two adjacent aeration holes (3e) in the same row is 1 to 5 times the center distance between two adjacent three-dimensional tubular structures.

15. The biological contactor of claim 14, wherein the biological contactor is a rotating biological contactor. The air chamber wall of the air chamber component (3) is provided with multiple rows of aeration holes (3e). The aeration holes (3e) of two adjacent rows are staggered in the vertical direction. The height difference between two adjacent rows of aeration holes (3e) is greater than 5 times the diameter of the aeration holes (3e). The diameter of the aeration holes (3e) in the lower row of two adjacent rows is 1 mm to 3 mm larger than the diameter of the aeration holes (3e) in the upper row, or 30% to 100% larger than the diameter of the aeration holes (3e) in the upper row.

16. The biological contactor of any one of claims 1 to 6, wherein the biological contactor is a trickling filter. Along the horizontal direction, the center distance between two adjacent air chamber components (3) is 100mm to 500mm, and the center distance between two adjacent air chamber components (3) is 2 to 6 times the center distance between two adjacent three-dimensional tubular structures.

17. The biological contactor of any one of claims 1 to 6, wherein the biological contactor is a trickling filter. The gap between the three-dimensional mesh packing (2) and the wall of the contact oxidation tank (1) is less than 1 / 2 of the inner diameter of the three-dimensional tubular structure.

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