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Title:
FLEXIBLE SHIELD SUPPORT MINING METHOD FOR STEEPLY INCLINED COAL SEAM
Document Type and Number:
WIPO Patent Application WO/2019/205227
Kind Code:
A1
Abstract:
Disclosed is a flexible shield support mining method for a steeply inclined coal seam. The method comprises: installing a flexible shield support (1), injecting water into a coal wall of a coalface (8), exploding the coalface, and removing the flexible shield support. By installing the flexible shield support, during the process of mining the steeply inclined coal seam, the efficiency of mining is increased, and the safety of workers is improved. Moreover, the shield support has a rational structure, and is easy to install and maintain. By installing a dust-reducing and water injection hole packer (12), dust generated during production is reduced, thus making the working environment better.

Inventors:
SHI FUSHAN (CN)
ZHAO RENLE (CN)
ZHANG MING (CN)
QI DONGHE (CN)
ZHANG ZUOLI (CN)
RU XINHUA (CN)
JI XIANLIANG (CN)
LI LECHENG (CN)
WANG QINGYU (CN)
WANG CHENGGONG (CN)
TIAN BENQIANG (CN)
YU TONGJU (CN)
ZHU FENGWEN (CN)
CHU FUYAO (CN)
LIU SHUNJUAN (CN)
Application Number:
PCT/CN2018/089266
Publication Date:
October 31, 2019
Filing Date:
May 31, 2018
Export Citation:
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Assignee:
SHANDONG DONGSHAN MINING CO LTD ZHU BAI COAL MINING (CN)
International Classes:
E21C41/16
Foreign References:
CN103061764A2013-04-24
CN202007673U2011-10-12
CN206903683U2018-01-19
CN107939424A2018-04-20
CN103993883A2014-08-20
CN102562066A2012-07-11
US3958830A1976-05-25
Other References:
LU JIANG: "Application of Diagonal Flexible Shield Support Coal Mining Method", SHANXI COKING COAL SCIENCE &TECHNOLOGY, vol. 1, 31 January 2014 (2014-01-31), pages 23 - 25
Attorney, Agent or Firm:
JW IP LAW FIRM (CN)
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