Title:
UNDER-SLOPE COAL MINING METHOD FOR OPEN-PIT COAL MINE
Document Type and Number:
WIPO Patent Application WO/2023/207041
Kind Code:
A1
Abstract:
An under-slope coal mining method for an open-pit coal mine, the method comprising: mining coal in a roadway (200); transporting coal sheets out of the roadway (200); and blowing air to a coal mining working face (201), and extracting air at an entrance of the roadway (200) to replace the air in the roadway (200).
Inventors:
WANG BUKANG (CN)
ZHANG QIANG (CN)
CHEN MINGJUN (CN)
ZHU DAPENG (CN)
ZHANG XIAOFENG (CN)
CHEN QINGHE (CN)
ZHANG XUERUI (CN)
DUAN JINGXI (CN)
HE JIANWEI (CN)
YUAN GANG (CN)
GAO LI (CN)
HUANG ZHENHUA (CN)
YANG JIE (CN)
MA YUHUA (CN)
HOU WEI (CN)
HU LINGYUN (CN)
ZHANG QIANG (CN)
CHEN MINGJUN (CN)
ZHU DAPENG (CN)
ZHANG XIAOFENG (CN)
CHEN QINGHE (CN)
ZHANG XUERUI (CN)
DUAN JINGXI (CN)
HE JIANWEI (CN)
YUAN GANG (CN)
GAO LI (CN)
HUANG ZHENHUA (CN)
YANG JIE (CN)
MA YUHUA (CN)
HOU WEI (CN)
HU LINGYUN (CN)
Application Number:
PCT/CN2022/132637
Publication Date:
November 02, 2023
Filing Date:
November 17, 2022
Export Citation:
Assignee:
TAI YUAN RESEARCH INSTITUTE OF CHINA COAL TECH & ENGINEERING GROUP (CN)
SHANXI TIANDI COAL MINING MACHINERY CO LTD (CN)
SHANXI TIANDI COAL MINING MACHINERY CO LTD (CN)
International Classes:
E21C47/02; E21C41/28; E21F1/00; E21F1/10; E21F17/18
Foreign References:
| CN114645713A | 2022-06-21 | |||
| CN114607439A | 2022-06-10 | |||
| CN110080761A | 2019-08-02 | |||
| CN202007668U | 2011-10-12 | |||
| CN111608729A | 2020-09-01 | |||
| CN109296369A | 2019-02-01 | |||
| US20020096934A1 | 2002-07-25 |
Attorney, Agent or Firm:
TSINGYIHUA INTELLECTUAL PROPERTY LLC (CN)
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