Air flotation machine with precipitation function

Abstract

The invention belongs to the technical field of sewage treatment, and particularly relates to an air flotation machine with a precipitation function, the air flotation machine comprises a body, the body is internally provided with a filter chamber, a precipitation chamber, a release chamber and a residue scraping chamber, the precipitation chamber is located above the filter chamber, and the release chamber is located on one side of the filter chamber. The residue scraping chamber is located on the side, away from the filter chamber, of the release chamber, a through hole is formed in the topof the filter chamber, the filter chamber is communicated with the precipitation chamber, and the precipitation chamber is sequentially communicated with the residue scraping chamber; fan blades are arranged at the bottom of the filter plate, sewage enters theprecipitation chamber through the filter chamber, the fan blades are driven to rotate under flowing of water, and due to the fact that the fan blades are fixedly connected with the scraper blade, the scraper blade is driven to rotate at the bottom of the filter plate under driving of the fan blades, and impurities left after filtering onthe filter plate are scraped off, so that the filter plate is prevented from being blocked to influence the normal flow of sewage and influence the sewage treatment efficiency.

Description

technical field [0001] The invention belongs to the technical field of sewage treatment, and in particular relates to an air flotation machine with a sedimentation function. Background technique [0002] The air flotation machine is a machine that uses small or tiny air bubbles to make impurities in the medium float out of the water. The air flotation device can be used for some fine impurities in the water body whose specific gravity is close to that of water, which is difficult to sink or float due to its own weight. At present, the most advanced dissolved air flotation machine in China (micro-bubble generator) uses the vortex pump Special stirring function, supporting patented product-automatic gas-liquid separation tank: mix the gas that is difficult to dissolve in water or two or more different liquids under high pressure, and produce fine bubbles with a particle size of 20-50 microns. Stirring technology greatly simplifies the traditional mixing process, not only can ...

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Problems solved by technology

[0003] The Chinese patent discloses an air flotation machine with a sedimentation function (authorized announcement number is CN210481038U). The slag mechanism, in which the filter layer can prevent the solid particles in the water from rising and leave them at the bottom of the air flotation machine body, and the slag scraping mechanism is used to scrape the sediment in the water to the side of the sewage outlet for easy cleaning, but will filter The filter layer is placed inside the body of the air flotation machine for a long time. Due to too many impurities in the sewage, it is very easy to cause blockage of the through holes on the filter layer, and the staff needs to clean it up in time.

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