Lifting aerating device arranged in high density

Abstract

The invention provides a lifting aerating device arranged in high density, which facilitates lifting and maintenance with water, and is capable of avoiding aerators or hose pipes from twining and damaging, overcoming the defect of no aeration at the bottom of the common aeration disc, reducing the risk of depositing mud at the bottom of a pond, and realizing high density arrangement and efficient oxygenation in any size of sewage treatment pond. The lifting aerating device arranged in high density comprises a plurality of air-distributing floating pipes which are arranged in parallel and float on the water surface of a sewage treatment pond; one end of each floating pipe is connected with an air intake manifold, and the other end of each floating pipe is connected with the sewage treatment pond through a fixing device; and multiple groups of aerators are equidistantly arranged on each floating pipe. By using the structure, the defect of no aeration at the bottom of the common aeration disc is overcome, the risk of depositing mud at the bottom of the pond is reduced, and the efficient oxygenation can be realized due to high density arrangement.

Description

technical field [0001] The invention relates to an aeration device for sewage treatment, in particular to a high-density aeration device that can be lifted. technical background [0002] The aeration device can be lifted, which is a multi-stage activated sludge sewage treatment device with denitrification function. The system is driven by the air conveying floating pipe as a buoy. . When the aerator is ventilated, the aerator will swing unevenly due to the action of water flow and air agitation, and the continuous reciprocating swing forms a regular aeration service area of ​​the aerator, forming a continuous aerobic and anoxic area, realizing Efficient denitrification. The boostable aeration device not only strengthens the oxygen transfer efficiency, but also reduces the operating cost and greatly improves the treatment effect. It has been rapidly applied and developed in recent years. However, when the air flow or water flow changes greatly, the system will cause the ae...

AI Technical Summary

Problems solved by technology

[0003] Although such a structure can realize the lifting of the aeration device without releasing water, the overall structure is relatively complicated.

The lifting positioner consists of at least one set of pulley assemblies and lifting wire ropes, so it can only be used in smaller pools. In larger pools, the aeration device in the middle of the pool has no place to fix the lifting positioner.

Moreover, in the prior art, the aerator is often suspended in the water, which leads to easy entanglement between the hoses, so it is impossible to talk about high-density configuration

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