Title:
TEMPORARY ISOLATION WALL WITH DOUBLE-LAYER AIR BAGS FOR CLOSED WIND PATH ROADWAY OF UNDERGROUND COAL MINE
Document Type and Number:
WIPO Patent Application WO/2020/215525
Kind Code:
A1
Abstract:
Provided is a temporary isolation wall with double-layer air bags for closed wind path roadway of underground coal mine, and belongs to the technical field of prevention for coal self-combustion in underground coal mines. The temporary isolation wall comprises an air inflation bag body (1), a fixed assembly (3) and an auxiliary fire extinguishment channel (124), the air inflation bag body (1) is a double-layer bag body structure formed by an outer-layer air bag (11) and an inner-layer air bag (12), the shape of the air-inflated air inflation bag body (1) is a columnar structure, the outer-layer air bag (11) is prepared from fireproof EVA foaming cotton (111), the inner-layer air bag (12) is prepared from compact asbestos cloth (121); the fixed assembly (3) comprises a connection rope (13) and a fixed pile (33), an air inflation port (122) is arranged in the central position of the bottom surface of the inner-layer air bag (12), the air inflation port (122) is connected with an air inflation pump (2) through a pipeline, an exhaust valve (126) is arranged at the part adjacent to the air inflation port (122). The isolation wall is simple in structure, convenient to install, efficient and convenient, and capable of saving manpower and material resources.
Inventors:
WANG GANG (CN)
TAN BO (CN)
CHENG WEIMIN (CN)
LIU XUELIN (CN)
SUN LULU (CN)
NIU HUIYONG (CN)
HU XIANGMING (CN)
LIU ZHIYUAN (CN)
TAN BO (CN)
CHENG WEIMIN (CN)
LIU XUELIN (CN)
SUN LULU (CN)
NIU HUIYONG (CN)
HU XIANGMING (CN)
LIU ZHIYUAN (CN)
Application Number:
PCT/CN2019/098778
Publication Date:
October 29, 2020
Filing Date:
August 01, 2019
Export Citation:
Assignee:
UNIV SHANDONG SCIENCE & TECH (CN)
International Classes:
E21F17/107; E21F5/00; E21F5/02
Foreign References:
| CN110318806A | 2019-10-11 | |||
| CN106761925A | 2017-05-31 | |||
| CN102061930A | 2011-05-18 | |||
| CN106761923A | 2017-05-31 | |||
| CN203035258U | 2013-07-03 | |||
| CN203948127U | 2014-11-19 | |||
| CN2276561Y | 1998-03-18 | |||
| KR20100064949A | 2010-06-15 | |||
| US4102138A | 1978-07-25 |
Attorney, Agent or Firm:
QINGDAO ZHIDILINGCHUANG PATENT AGENCY CO., LTD (CN)
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