Multistage centrifugal-atomization aerator

Abstract

The invention relates to a multistage centrifugal-atomization aerator capable of increasing aeration efficiency of sewage treatment. The multistage centrifugal-atomization aerator consists of an aerator body, a motor, fan blades, a driving disc, centrifugal discs, crushing nets, a drip catching tray, a water inlet pipe and a water outlet pipe. During operation, firstly, the motor is started up to drive the fan blades, the driving disc and the centrifugal discs to rotate at a high speed, then, sewage to be treated is input to manifolds through the water inlet pipe and then flows onto the centrifugal discs, then, the sewage flowing onto the centrifugal discs is thrown out of edges at a high speed due to the action of a centrifugal force so as to form water films, the water films are instantly crushed into fine atomized particles when the water films are thrown to the crushing nets outside the centrifugal discs, then, a large volume of fresh air pumped from the fan blades is subjected to adequate air-liquid exchange dissolving with the atomized particles, then, the extensively-aerated atomized particles downwards flow through a flow guiding disc and the drip catching tray and finally flow out of the aerator from the water outlet pipe, and additionally, anoxic exhaust gas subjected to air-liquid exchange flows through a water filtering mesh from the lower end of the flow guiding disc and then is exhausted out of the aerator from an exhaust opening.

Description

technical field [0001] The invention relates to a sewage treatment aerator, which is a multi-stage centrifugal atomization aerator composed of a machine body, a motor, fan blades, a drive disk, a centrifugal disk, a crushing net, a water collecting tray, a water inlet pipe and a water outlet pipe. Background technique [0002] At present, aeration aerators are widely used in sewage treatment on the market. Its structure is composed of high-pressure fans, aeration heads, air supply pipes, water inlet pipes, drainage pipes and aeration tanks. During the operation, the sewage enters the aeration tank from the water inlet pipe first, and then the high-pressure fan is turned on to send the high-pressure air from the air supply pipe into the aeration head installed in the aeration tank, where it becomes small bubbles and escapes to carry out gas-liquid exchange with the sewage in the tank. Mixing achieves the purpose of increasing oxygen, and the water after aeration treatment is ...

AI Technical Summary

Problems solved by technology

However, with this method of oxygenation, the bubbles escaping from the aeration head cannot be made very small, resulting in a small area of ​​mixed contact with the sewage, which makes the efficiency of oxygenation in the sewage poor. In addition, due to the need to build an aeration tank to The disadvantages of aeration and oxygen enhancement operations are that it occupies a large area of ​​the workplace and has high cost investment.

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