Molten slag cooling device of plate-piece-type rapid cooler and molten slag rapid cooling and curing method

Abstract

The invention provides a molten slag cooling device and a plate-piece-type rapid cooler for molten slag rapid cooling and curing, the plate-piece-type rapid cooler comprises a pair of plate pieces which are oppositely arranged, the distance between the two plate pieces is far smaller than the height and the width of the plate pieces, the ratio of the distance to the length is smaller than 1 / 10, the ratio of the distance to the width is smaller than 1 / 10, a serpentine heat transfer tube is arranged in each plate piece, the outer side surface of each plate piece is provided with a heat preservation layer, the inner side surface, which comprises an outer surface of the serpentine heat transfer tube and an inner surface of a connecting plate, of each plate piece is provided with a layer of easily-stripped coating, the bottom, the rear side surface and the front side surface of the rapid cooler are a cement material, and the bottoms of the adjacent plate pieces are connected through the cement material. The serpentine heat transfer tube is connected with a steam pocket and a circulating pump to form a ring. The invention further provides a molten slag cooling method adopting the moltenslag cooling device. According to the method, rapid cooling of high-temperature molten slag is realized, the molten slag is recycled, the production cost is saved, the economic benefits are reduced, and meanwhile, the ecological environment is improved.

Description

technical field [0001] The invention belongs to the field of slag cooling, and in particular relates to a slag cooling device of a plate type rapid cooler and a method for rapidly cooling and solidifying slag. Background technique [0002] After the gasifier gasifies the raw coal, a solid residue is obtained, which is called slag or ash. The slag itself has little or no hydraulic gelling properties, but it participates in the chemical reaction of calcium hydroxide or other hydroxides in the presence of ground water, especially under steam curing conditions. And generate a compound with hydraulic gelling properties. Therefore, it can be used as a building material, often used in the production of cinder or slag concrete large-scale samples, etc., and the slag can also be used for road construction or as insulation and sound insulation materials in houses. [0003] According to different metallurgical processes, slag can be divided into smelting slag, refining slag and synth...

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Problems solved by technology

[0004] The purpose of the present invention is to solve the technical problems of difficult recovery and reuse of slag and slow cooling of slag in the prior art

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