Air flotation device for conveniently collecting floating residues

Abstract

The invention relates to an air flotation device for conveniently collecting floating residues. The air flotation device comprises an air flotation tank, a water intake pipe, a water drain pipe, a lifting mechanism, a top plate, a filtering mechanism, an air flotation machine, a controller and a clearing mechanism, wherein the filtering mechanism comprises two filtering assemblies; each filteringassembly comprises a filtering net and two direction adjusting units; each direction adjusting unit comprises a lifting rod, a first motor, a drive wheel and a pull wire; the clearing mechanism comprises a side plate, a telescopic assembly, a clearing box and a clearing assembly; the clearing assembly comprises a spring, a press plate, a slide rod, a scraping plate and a plurality of brushes. Theair flotation device for conveniently collecting the floating residues has the advantages that the sewage can drive the impurities to float to the liquid surface by the filtering mechanism in the airflotation process; after air flotation, the floating residues are collected to the part above the filtering net, so as to separate solid and liquid; the scraping plate and the brushes are driven by the clearing mechanism to move above the filtering net, and the floating residues on the filtering net are swept off, and are collected by an operator, so as to improve the practicality of the equipment.

Description

technical field [0001] The invention relates to the field of water pollution control equipment, in particular to an air flotation device for collecting scum. Background technique [0002] The air flotation device is a dissolved air system that generates a large number of tiny bubbles in the water, making the air attach to the suspended particles in the form of highly dispersed tiny bubbles, resulting in a state of density lower than that of water, and using the buoyancy to keep the scum floating on the water surface, thereby realizing Water treatment equipment for solid-liquid separation. [0003] When the existing air flotation device treats sewage, it needs to pass the sewage into the air flotation tank. After the sewage reaches a certain liquid level, control the operation of the air flotation machine to generate a large number of tiny bubbles at the bottom of the sewage for air flotation, and then pass through The slag scraper scrapes the liquid surface of the sewage. W...

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Problems solved by technology

[0003] When the existing air flotation device treats sewage, it needs to pass the sewage into the air flotation tank. After the sewage reaches a certain liquid level, control the operation of the air flotation machine to generate a large number of tiny bubbles at the bottom of the sewage for air flotation, and then pass through The slag scraper scrapes the liquid surface of the sewage. When the sewage is treated in this way, because the sewage needs to be passed into the specified height, when the liquid level of the sewage is too high or too low, it is difficult for the scraper on the slag scraper to collect the water surface. The scum on the surface, resulting in the existing air flotation device still has defects in the treatment of scum

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