Method for dewatering coal mine goaf by crossing neighboring goaf

Number of patents in Portfolio can not be more than 2000

United States of America

PATENT NO 12146410
SERIAL NO

18636300

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Abstract

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A method for dewatering a coal mine goaf by crossing a neighboring goaf is applicable to a scenario including a first goaf, a second goaf, and a third goaf located sequentially at one side of a roadway. A directional hole mechanism is provided between the roadway and the second goaf as well as between the roadway and the third goaf. The directional hole mechanism passes through a coal seam floor at a bottom of the goaf and is communicated to the second goaf and the third goaf. The directional hole includes a first directional hole and a second directional hole. The first directional hole is communicated to the second goaf, the second directional hole is communicated to the third goaf, and the first directional hole is provided with a casing structure.

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Patent Owner(s)

Patent OwnerAddress
HUAINAN MINING (GROUP) CO LTD232001 ANHUI PROVINCE TIANJIA'AN DISTRICT MOUNTAIN IN HUAINAN CITY HUAINAN CITY ANHUI PROVINCE 232001
PING AN COAL MINING ENGINEERING TECHNOLOGY RESEARCH INSTITUTE CO LTDBUILDING 6 WISDOM VALLEY HI-TECH ZONE ANHUI HUAINAN 232001

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Chang, Chenglin Huainan, CN 1 0
Gao, Yingui Huainan, CN 2 0
Hu, Lin Huainan, CN 65 344
Li, Bing Huainan, CN 454 3928
Li, Hao Huainan, CN 560 4472
Li, Yanqing Huainan, CN 15 41
Liao, Qingfa Huainan, CN 3 0
Wang, Hongwei Huainan, CN 120 282
Yin, Shaobo Huainan, CN 1 0

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