Deslagging device of aerated grit chamber

Abstract

The invention particularly relates to a deslagging device of an aerated grit chamber, the deslagging device of the aerated grit chamber comprises a gas stripping fan, a sand discharge gas stripping pipe, a deslagging gas stripping pipe and a U-shaped deslagging pipe, the outlet of the gas stripping fan is respectively communicated with the deslagging gas stripping pipe and the sand discharge gas stripping pipe, the sand discharge gas stripping pipe is provided with a sand discharge gas stripping pipe valve, and the U-shaped deslagging pipe is communicated with the outlet of the gas stripping fan. A deslagging gas stripping pipe valve is installed on the deslagging gas stripping pipe, one side of the U-shaped deslagging pipe is connected with the deslagging gas stripping pipe, and an adjusting valve is installed at the inlet end of the U-shaped deslagging pipe. According to the deslagging device of the aerated grit chamber, scum can be removed through gas stripping, a scum scraping plate does not need to be installed, the height can be adjusted according to the liquid level, and the problem that the scum cannot be collected due to the fact that the elevation of a traditional scum scraping plate is not matched with the liquid level change of a scum area is solved.

Description

technical field [0001] The invention belongs to the field of water pollution control, and in particular relates to a slag removal device for an aeration grit chamber. Background technique [0002] In the aeration grit chamber in the pretreatment section of the sewage treatment plant, some inorganic particles sink under the action of aeration, and some suspended particles will float up to produce a large amount of scum. It is time-consuming and labor-intensive and the amount of scum residue is relatively high only by manual hand-held simple tools. If there are too many, it will affect the treatment of the next process, and there is a potential safety hazard that the scum that is manually salvaged may fall into the aerated grit chamber. [0003] At present, the scum tank of the aerated grit chamber of the sewage treatment plant usually adopts a reinforced concrete tank body, and the scum discharge pipe is pre-buried, and the scum scraper is driven by the truss truck sand sucti...

AI Technical Summary

Problems solved by technology

[0005] In order to solve the problem in the prior art that the height of the scum tank and the scraper board does not match and thus the effect of collecting scum is poor, the present invention provides a scum removal device for an aerated grit chamber. Lift and remove scum without installing a scum scraper, and the height can be adjusted according to the liquid level, which overcomes the problem that the scum cannot be collected due to the mismatch between the elevation of the traditional scum scraper and the liquid level change in the scum area

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