Title:
INHIBITION TYPE, ULTRA-HIGH WATER FIRE PREVENTING AND EXTINGUISHING MATERIAL ON BASIS OF COAL SPONTANEOUS COMBUSTION MECHANISM FOR USE IN MINING, AND PREPARATION METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2018/133561
Kind Code:
A1
Abstract:
An inhibition type, ultra-high water fire preventing and extinguishing material on the basis of a coal spontaneous combustion mechanism for use in mining, and a preparation method therefor, relating to the field of spontaneous combustion inhibition for preventing and extinguishing fires in coal mining. The inhibition type ultra-high water fire preventing and extinguishing material for use in mining is composed of materials A, materials B and water. The materials A comprise, by mass, 60%-85% of sulphoaluminate cement, 0.5%-5% of calcium formate, 2%-10% of polyethylene glycol 400, 5%-18.5% of calcium sulfate, 1.5%-7% of calcium oxide and 2%-5% of calcium chloride; the materials B comprise, by mass, 0.3%-2% of ascorbic acid, 15%-25% of sodium aluminate, 33%-50% of calcium oxide, 3%-10% of sodium sulfate and 13%-30% of calcium sulfate. The mass ratio of the materials A to the materials B is 5-7:1, and the mass ratio of the total mass of the materials A and the materials B to the mass of the added water is 1: (8-11). With the present invention, the cost is low, environmental friendliness is achieved, and the raw materials come from an abundant source. The present invention has the functions of rapid cooling and chemically inhibiting and extinguishing, and may regionally prevent and treat instances of coal spontaneous combustion. Re-combustion and occurrence of new peripheral combustion sources are prevented at the same time that a coal spontaneous combustion calamity is treated efficiently.
Inventors:
QI XUYAO (CN)
XIN HAIHUI (CN)
WEI CUNXIANG (CN)
BAI ZIMING (CN)
CHEN LIANGZHOU (CN)
XIN HAIHUI (CN)
WEI CUNXIANG (CN)
BAI ZIMING (CN)
CHEN LIANGZHOU (CN)
Application Number:
PCT/CN2017/114273
Publication Date:
July 26, 2018
Filing Date:
December 01, 2017
Export Citation:
Assignee:
UNIV CHINA MINING (CN)
International Classes:
A62D1/00; C04B28/06
Foreign References:
| CN104402376A | 2015-03-11 | |||
| CN103785130A | 2014-05-14 | |||
| CN106753439A | 2017-05-31 | |||
| CN106880919A | 2017-06-23 |
Other References:
DOU, GUOLAN, STUDY ON CHEMICAL INHIBITOR PREVENTING COAL SPONTANEOUS COMBUSTION, 30 September 2014 (2014-09-30), pages 87 - 90
Attorney, Agent or Firm:
NANJING JINGWEI PATENT & TRADEMARK AGENCY CO., LTD (CN)
Download PDF: