Title:
MULTIFUNCTIONAL PLUGGING AGENT FOR COAL MINE, AND PREPARATION METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2022/147888
Kind Code:
A1
Abstract:
The present invention belongs to the technical field of coal mine fire prevention and extinguishing materials, and particularly relates to a multifunctional plugging agent for a coal mine, and a preparation method therefor. In the present invention, Ecklonia kurome Okam serves as a raw material; an Ecklonia kurome Okam suspension and phosphorus pentoxide are mixed for reaction, and same is then biodegraded to obtain an Ecklonia kurome Okam biological extraction solution; urea is added for neutralization; the product of neutralization is mixed with an inorganic catalyst and melamine for reaction to obtain a bio-based plugging synergist solution; and finally, the bio-based plugging synergist solution is cooled, and then same is mixed with a certain amount of pentaerythritol and ammonium polyphosphate to obtain the multifunctional plugging agent for a coal mine based on the Ecklonia kurome Okam biological extraction solution. The present invention can not only effectively plug coal body cracks for a long time, but can also have a highly efficient flame-retardant effect in the complete cycle (including low temperature, medium temperature and high temperature) of coal spontaneous combustion.
Inventors:
CHENG WEIMIN (CN)
HU XIANGMING (CN)
YAN BINGRUI (CN)
ZHAO YANYUN (CN)
XUE DI (CN)
WU MINGYUE (CN)
HE ZHENGLONG (CN)
BAI GUANGXING (CN)
MU ZONGLEI (CN)
HU XIANGMING (CN)
YAN BINGRUI (CN)
ZHAO YANYUN (CN)
XUE DI (CN)
WU MINGYUE (CN)
HE ZHENGLONG (CN)
BAI GUANGXING (CN)
MU ZONGLEI (CN)
Application Number:
PCT/CN2021/076121
Publication Date:
July 14, 2022
Filing Date:
February 09, 2021
Export Citation:
Assignee:
UNIV SHANDONG SCIENCE & TECH (CN)
International Classes:
C09K8/42; A62D1/00; A62D1/06; B01J20/08; B01J20/30; C09K21/06; C09K21/14; E21B33/13; E21F5/00
Domestic Patent References:
WO2000071591A1 | 2000-11-30 |
Foreign References:
CN107189772A | 2017-09-22 | |||
CN107151552A | 2017-09-12 | |||
CN103113865A | 2013-05-22 | |||
CN110724507A | 2020-01-24 | |||
CN101250398A | 2008-08-27 | |||
CN107502322A | 2017-12-22 | |||
CN110627440A | 2019-12-31 | |||
CN107285723A | 2017-10-24 |
Attorney, Agent or Firm:
JINAN GEYUAN INTELLECTUAL PROPERTY AGENCY CO., LTD (CN)
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