Mining spraying material for blocking air leakage and preparation device of mining spraying material

A technology for plugging air and mining, which is applied to clay preparation devices, unloading devices, and raw material supply devices for sales, etc., can solve the problems of lack of performance plugging air materials, high cost of foam resin, and lack of strength for three-phase foam. Achieve stable and fast adhesive performance, excellent foam compression performance, and excellent bubble performance.
CN106927773AInactive Publication Date: 2017-07-07LONGYAN UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
LONGYAN UNIV
Publication Date
2017-07-07
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention relates to mining materials and aims at providing a mining spraying material for blocking air leakage. According to the technical scheme, the material contains the following components in parts by weight: 100 parts of water, 13-25 parts of coal ash, 6-8 parts of gypsum, 20-26 parts of cement, 8-12 parts of slaked lime, 0.5-0.8 parts of fatty alcohol-polyoxyethylene ether, 0.4-0.8 parts of hydroxyethyl methylcellulose, 1-2 parts of lauryl sodium sulfate, 1-1.2 parts of fatty alcohol-polyoxyethylene ether sodium sulfate, 1.8-2.5 parts of polyphosphoric acid, 1.6-2 parts of hydroxypropyl starch ether with a viscosity of 600mPas-800mPas and 0.8-1.2 parts of vinyl acetate-vinyl copolymer type redispersible powder. The technical process of the material is simple, and the bubbling performance of the material is excellent; by utilizing a compound bubbling agent, the cost is lowered, the bubbling time is high, and the material has good high temperature resistance and heat-insulating property. The mining spraying material has wide use values in blockage of earth surface fractures in coal mines and sealed fire areas of the coal fields.
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Description

Technical field

[0001] The invention relates to a spraying wind blocking material for mines and a preparation device. Background technique

[0002] Coal spontaneous combustion is one of the main natural disasters in my country's coal mines, causing significant economic losses and seriously threatening the safety of coal mine personnel. The spontaneous combustion of coal in the mine is mainly caused by underground air leakage. Therefore, in order to effectively prevent the spontaneous combustion of coal in mines, it is critical to block down the air leakage points, reduce or eliminate oxygen supply, and prevent coal-oxygen recombination. The spontaneous combustion of coal in mine mining mainly occurs in goaf areas with air leakage channels, open cuts, stop mining lines, geological structural belts, and roadway high-collapse areas. In order to effectively plug the air leakage in coal mines, grouting, gel, foam resin, three-phase foam, expanded cement, etc. are often used in Chin...

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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