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Title:
METHOD FOR SORTING AND USING COAL/ROCK ON COAL-AND-ROCK SIMULTANEOUS-MINING FACE
Document Type and Number:
WIPO Patent Application WO/2017/219970
Kind Code:
A1
Abstract:
Disclosed is a method for sorting and using coal/rock on a coal-and-rock simultaneous-mining face, particularly useful for sorting and using coal and rock mined from a coal-and-rock simultaneous-mining face when mining multiple layers of coal and using a very thin coal layer as a protective layer. An underground gangue transport, storage, and filling system is directly set up underground; a large volume of coal gangue mined from a coal-and-rock mine face is transported to an underground sorting and washing chamber, where coal and rock are separated highly effectively; the separated gangue is crushed, then filled into a protected-layer goaf; the gangue is not lifted out of the mine, while the protected layer is filled and mined in a green manner, effectively preventing the settling of the land surface caused by the joint mining of multiple layers of coal; the separated medium coal is transported via a main transport system to a surface gangue power plant and used for power generation; the power plant produces a benefit and pressure on the coal quality of the mine is reduced, decreasing the average ash content of the commercial coal and raising its sale price. Coal and gangue are separated very effectively and the coal and rock are utilized in a highly effective manner.

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Inventors:
LIN, Boquan (Science Academy of China University of Mining and Technology No.1 University Road, Xuzhou, Jiangsu 6, 221116, CN)
LIU, Tong (Science Academy of China University of Mining and Technology No.1 University Road, Xuzhou, Jiangsu 6, 221116, CN)
YANG, Wei (Science Academy of China University of Mining and Technology No.1 University Road, Xuzhou, Jiangsu 6, 221116, CN)
LIU, Ting (Science Academy of China University of Mining and Technology No.1 University Road, Xuzhou, Jiangsu 6, 221116, CN)
LI, He (Science Academy of China University of Mining and Technology No.1 University Road, Xuzhou, Jiangsu 6, 221116, CN)
HUANG, Zhanbo (Science Academy of China University of Mining and Technology No.1 University Road, Xuzhou, Jiangsu 6, 221116, CN)
WANG, Rui (Science Academy of China University of Mining and Technology No.1 University Road, Xuzhou, Jiangsu 6, 221116, CN)
Application Number:
CN2017/089286
Publication Date:
December 28, 2017
Filing Date:
June 21, 2017
Export Citation:
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Assignee:
CHINA UNIVERSITY OF MINING AND TECHNOLOGY (Science Academy of China University of Mining and Technology No.1 University Road, Xuzhou, Jiangsu 6, 221116, CN)
International Classes:
E21C41/18; B03B7/00
Foreign References:
CN106401586A2017-02-15
CN105507903A2016-04-20
CN103567056A2014-02-12
CN101905189A2010-12-08
CN103934080A2014-07-23
AU2012255582B22015-08-13
Attorney, Agent or Firm:
NANJING RUIHONG PATENT & TRADEMARK AGENCY (ORDINARY PARTNERSHIP) (Room 410, Building 3 No .155 Long Pan Road, Xuanwu Distric, Nanjing Jiangsu 0, 210000, CN)
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