A kind of papermaking sewage air flotation treatment equipment

Abstract

The application relates to a papermaking sewage air flotation treatment equipment, including an air flotation tank, the air flotation tank is provided with a separation area and a sludge area; the upper part of the floating tank is provided with a slag scraping device, and the slag scraping device includes two sets of chain drive components, scraper components and The drive assembly, the drive assembly drives the chain transmission assembly to run; the scraper assembly includes a scraper main body, and both sides of the scraper main body in the length direction are respectively connected with two groups of chain transmission assemblies; the two sides of the scraper are respectively provided with connecting rods, two connecting rods There is a slag scraper between them, and the slag scraper is far away from the chain drive assembly relative to the scraper main body. The opposite sides of the slag scraper are provided with rotating shafts, and the two rotating shafts are respectively connected with one end of the connecting rod away from the scraper main body. A magnet is arranged on the side close to the main body of the scraper, and the main body of the scraper is made of ferromagnetic material; the upper part of the air flotation tank is provided with a blocking piece, and the blocking piece forces the slag scraper to turn over in the sludge area. The present application can reduce the repeated entry of scum adhering to the slag scraping device into the air flotation tank, thereby improving the slag scraping efficiency.

Description

technical field [0001] The present application relates to the field of sewage treatment technology, in particular to a papermaking sewage air flotation treatment equipment. Background technique [0002] Dissolved air flotation machine is a commonly used pretreatment equipment in sewage treatment. On the water surface, the slag scraping device is used to scrape away the water to purify the water. It is usually used in the pretreatment section of papermaking, plastic washing, petroleum, printing and dyeing, slaughtering, food, breeding and other industries, and is also used in the deep purification section of the effluent. [0003] During the working process of the slag scraping device, it is inevitable that a lot of scum will adhere to its surface. After the scraper assembly leaves the separation area, the slag scraper extends into the separation area again when the cyclic movement driven by the chain drive assembly enters the separation area again. Under the liquid level i...

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Problems solved by technology

[0003] During the working process of the slag scraping device, there will inevitably be more scum attached to the surface. When the scraper assembly leaves the separation area and enters the separation area again in a circular motion driven by the chain drive assembly, the slag scraper extends into the separation area again. Under the liquid level in the separation area, the scum attached to the scraper board will enter the water in the separation area again, thus affecting the efficiency of scraping

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