Cleaning method of phosphorous gypsum conveying-pipe-shaped belt

Abstract

The invention discloses a cleaning method of a phosphorous gypsum conveying-pipe-shaped belt. A motor drives pipe belt machine equipment; after feeding, the pipe-shaped belt conveys materials to the head portion of the pipe belt machine to discharge; a first grade scraper plate sweeper and a second grade scraper plate sweeper are placed on the position of a transmission rolling drum on the head portion of the pipe belt machine to clean the pipe-shaped belt, a cleaning device is installed below the pipe-shaped belt of a transition section of the head portion of the pipe belt machine through a turnabout rolling drum and a second transmission rolling drum to clean and dry the pipe-shaped belt. Dregs and water after the pipe-shaped belt is washed are connected through a water-collecting tank below a cleaning nozzle, and are connected to cycling settling basin through a pipeline. Supernatant water is used as water for cleaning the pipe-shaped belt, and the pipe-shaped belt is cleaned circularly through a water pump. The cleaning method of the phosphorous gypsum conveying-pipe-shaped belt can effectively clean an acidic material of the phosphorous gypsum on the pipe-shaped belt, wherein crystal water is included in the acidic material of the phosphorous gypsum, guarantee cleaning operations of the pipe-shaped belt, ensure that materials are not adhered to a carrier roller, resistance of the pipe-shaped belt is not increased, operation cost is reduced, equipment is safely operated and is not corroded by acid.

Description

technical field [0001] The invention relates to a method for cleaning a phosphogypsum conveying tubular belt. Background technique [0002] Currently, in the production of phosphate fertilizers, the production of phosphoric acid will produce a large amount of phosphogypsum. Because the amount of phosphogypsum is large and cannot be completely recycled, it is usually transported to the phosphogypsum yard by a tubular belt dry method for storage. During the operation of the tubular belt, the tubular belt should be prevented from being hanged and scratched by the sticky material of the idler. Since the transported material phosphogypsum contains crystal water and residual phosphorus, the moisture content is about 25%, the residual phosphorus content is about 1%, and the pH ≈ 2, it is acidic, so it should be transported by dry method. However, during the transportation of phosphogypsum, due to the presence of crystal water and acidic substances, some materials still stick to t...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a method that solves the problem that the acidic material containing crystal water on the tubular belt and the roller cannot be cleaned up.

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