A DNA-like molecule double helix multi-layer aeration stirring system

Abstract

A DNA-like molecular double helix multilayer aeration stirring system, comprising at least one group of aeration stirring devices composed of a gas source driving device and a stirring device, wherein the stirring device comprises at least one stirring monomer; each stirring monomer The whole is a hollow DNA-like molecular double-helix structure, including a stirring shaft, a stirring rod covered with a perforated membrane, and a fixed rod. Spiral structure, the middle part of the stirring rod is connected with the stirring shaft, the nozzles with perforated diaphragms are arranged at both ends, the air outlet A is arranged on one side of the stirring rod and the same side of the nozzle, and there is another opening under the bottom stirring rod. Air hole B; the hole of the perforated diaphragm is set on the same side of the stirring rod and the nozzle and does not coincide with the air outlet A. The invention can fully aerate, has stable and high-efficiency multi-layer stirring effect, can fully aerate and disturb the dead corner under the pool body, and achieve the purpose of thoroughly treating sewage.

Description

technical field [0001] The invention relates to an aeration stirring device, in particular to a DNA-like molecular double helix multi-layer aeration stirring system, which belongs to the technical field of sewage treatment. Background technique [0002] Biochemical tank is a commonly used biochemical treatment device in biological sewage treatment. The reaction in the biochemical tank involves anaerobic, anoxic and aerobic treatment stages. The aerobic stage requires that the water must contain enough dissolved oxygen to ensure the progress of the microbial reaction. In order to ensure the dissolved oxygen content in the water, the structures in the aerobic stage need to use mechanical aeration or blast aeration to increase the oxygen content in the water. [0003] Conventional aerators are divided into ceramic, corundum and membrane aerators in terms of materials. Ceramic and corundum aerators have higher costs, and the pores are easy to scale; Tubular aerators, disc aerat...

AI Technical Summary

Problems solved by technology

[0003] Conventional aerators are divided into ceramic, corundum and membrane aerators in terms of materials. The cost of ceramic and corundum aerators is relatively high, and the pores are prone to fouling; membrane aerators are further divided into disc aerators and Tube aerators and disc aerators are likely to have aeration dead zones below the aeration disc, and require more pipes, and the cost is also higher. At the same time, the layout density is affected by the pool area. When the pool body When the area is small and a larger aeration volume is required, the disc aerator is not the best choice; because the tube aerator needs to be fixed at the bottom of the pool body, although the gas ejected by it can achieve the aeration effect, the stirring The effect is poor, resulting in insufficient sewage treatment effect

[0004] In addition, considering that the conventional agitator is likely to have a stirring blind spot, and the agitator generally has only a single layer, which has a small disturbance effect on the deeper pool body, it is known to use a double-helical aeration device, which contains two helical flow dividers. Each spiral splitter only relies on the rotation power of the conventional spiral blade itself to generate a circulation effect, and the stirring effect can only be optimized to a limited extent. However, for structures that require aeration, additional aeration devices are required, and the cost is relatively high.

[0005] Furthermore, a known agitating aeration device is simply to superimpose the spiral blades and aeration tubes in space, and the agitation and aeration are realized separately in different spatial layers, and the composite effect is not good, and it is still impossible to achieve thorough treatment. purpose of sewage

Images