Mechanism and restraining technology on spontaneous combustion of coal detonating gas in goaf
QIN Bo-tao
ZHANG Lei-lin
WANG De-ming
YAO Yuan-ling
Abstract：In order to prevent spontaneous combustion of coal detonating gas explosion,studied the explosion con-centration range and explosion hazards resulted from mixed gases concluding CH_4 and CO produced in fire gas,ana-lyzed the potential explosion area and course of spontaneous combustion of coal detonating gas.The results show that the scope of explosion concentration and the risk of explosion increase in the goal with spontaneous combustion of coal and high-gas when CH_4 gas mixed with a large number of CO.At the same time,fire-heating air pressure produced by spontaneous combustion of coal results in the full mix of CH_4,CO and fresh air and the convection ex-change of heat between the combustion zone and non-firing zone,occured the gas explosion accident.Finally,the large flux and high-quality three-phase foam was adopted to prevent spontaneous combustion of coal detonating gas.
Keywords：spontaneous combustion of coalgas explosionexplosion hazard
Publication Date：2009-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：5( 1655-1659 )