Method for preparing haydite of coal slack

A technology of coal gangue ceramsite and coal gangue, which is applied in ceramic products, clay products, applications, etc., can solve the problems of damage to the environment, high firing temperature, large energy consumption, etc., to save cultivated land, reduce land, and save energy. Effect
CN1872783AInactive Publication Date: 2006-12-06CHINA UNIV OF GEOSCIENCES (WUHAN)
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Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Applications(China)
Current Assignee / Owner
CHINA UNIV OF GEOSCIENCES (WUHAN)
Publication Date
2006-12-06
Estimated Expiration
Not applicable Β· inactive patent
Patent Text Reader

Abstract

This invention relates to a method for manufacturing ceramic particles from coal gangues. The method comprises: (1) mixing the raw materials, grinding, and sieving with a 80-200 mesh sieve; (2) adding water and granulating; (3) drying; (4) heating to 900-1150 deg.C, and sintering; (5) cooling to obtain the final product. The method does not need much clay, and save the cropland.
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Description

technical field

[0001] The invention relates to a preparation method of ceramsite for construction, in particular to a preparation method of ceramsite with coal gangue as the main raw material. Background technique

[0002] Ceramsite is a granular ceramic material made of clay with certain special properties as raw material, which releases gas after high-temperature melting, expands, and is finally roasted. The surface of ceramsite forms a layer of skin due to vitrification, and after cooling, it forms a light, hard product with obvious peak and nest structure, and its particle capacity is generally 750-1200kg / m 3 . The ceramsite produced by the rotary kiln is generally round in shape, with a black crest-like structure inside, and the outer skin is chestnut red and cyan.

[0003] Clay is the main raw material for the production of ceramsite at first. At present, more and more industrial waste residues, waste materials, discarded mineral wastes, low-quality shale, etc. are...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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