巴拉素煤矿煤层自然发火特征与防治.pdf

42 王春林 陈 辰 巴拉素煤矿煤层自然发火特征与防治 2021 年
pontaneous combustion risk account for about three quarters of the total
number of mines in China. The toxic and harmful gases produced by coal spontaneous fire seriously threaten the life and safety
of mine workers. The coal seam in Balasu Coal Mine is non-caking coal with low metamorphism and the coal seam ex⁃
，
ists in the gas weathering zone. Through laboratory test and analysis the spontaneous combustion tendency and the shortest
，
spontaneous combustion period of coal seam are identified and the indicator gas of spontaneous combustion is optimized.
，
Combined with the actual situation of the mine the internal cause fire prevention and control idea of "forecast tracking com⁃
， ，
prehensive prevention and control phased strengthening" is determined and the comprehensive fire prevention technical mea⁃
， ，
sures based on "intrinsic safety