Aerating device capable of adjusting stirring along with liquid level

Abstract

The invention discloses an aerating device capable of adjusting stirring along with the liquid level, relates to the field of aeration, and solves the problem of influence on the aerating efficiency of a conventional aerating device caused by non-uniform scattering of activated sludge due to non-flexible stirring during the change of the liquid level. The aerating device capable of adjusting the stirring along with the liquid level comprises an aerating cylinder, a stirring paddle, a driven stirring wheel, a driving stirring wheel and a belt, wherein the driving stirring wheel is connected with a stirring motor; a liquid level sensing device is arranged on the side wall of the aerating cylinder; an outer air pipe is arranged on the bottom side of the aerating cylinder and is communicated with the aerating cylinder to form an aerating hole; the stirring paddle comprises an outer stirring shaft, a telescopic blade and a moving rod; the telescopic blade is formed by arraying a front blade rod and a rear blade rod in an 8 form; the moving rod extends out of the bottom of the aerating cylinder and is connected with the aerating cylinder. According to the device, the stirring paddle can be automatically adjusted along with the liquid level, uniform stirring can be realized regardless of the ascent magnitude and descent magnitude of the liquid level, the activated sludge is more uniformly scattered, and the aerating efficiency is improved.

Description

technical field [0001] The invention relates to an aeration device, in particular to an aeration device whose agitation can be adjusted according to the liquid level. Background technique [0002] In daily life, a variety of domestic sewage will be produced, and domestic sewage needs to be treated before it can be discharged. One of the processes in the sewage treatment process is aeration, so that the activated sludge in the sewage can get enough dissolved oxygen and then decompose the harmful substances in the sewage. This process requires stirring to make the activated sludge evenly dispersed in the sewage. However, With the current stirring device, if the height of the liquid level is different every time when stirring, part of the stirring paddle will be exposed outside the liquid surface, resulting in a decrease in stirring efficiency. However, the height-adjustable stirring device can solve the problem. The problem of partial exposure, however, due to its inflexibili...

AI Technical Summary

Problems solved by technology

One of the processes in the sewage treatment process is aeration, so that the activated sludge in the sewage can get enough dissolved oxygen and then decompose the harmful substances in the sewage. This process requires stirring to make the activated sludge evenly dispersed in the sewage. However, With the current stirring device, if the height of the liquid level is different every time when stirring, part of the stirring paddle will be exposed outside the liquid surface, resulting in a decrease in stirring efficiency. However, the height-adjustable stirring device can solve the problem. The problem of partial exposure, however, due to its inflexibility, even if the device is lowered below the liquid level, the paddles are not uniformly dispersed in the liquid, making the stirring efficiency not high, and even causing part of the liquid to fail due to insufficient stirring. The activated sludge is completely dispersed evenly, which affects the normal aeration process

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