RESEARCH ON RISK OF SPONTANEOUS COMBUSTION IN MINING AREA OF FULLY-MECHANIZED WORKING FACE WITH TOP-COAL DRAWING

被引：1
|
作者：
罗新荣
李增华
机构：
来源：
Journal of Coal Science & Engineering(China) | 1998年 / 02期
关键词：
mining area; air leakage; spontaneous combustion; fire prevention;
D O I：
暂无
中图分类号：
TD75 [矿山防火];
学科分类号：
081903 ;
摘要：
Air leakage velocity in intake goaf and distribution of air leakage in mining area are determined by Instantaneous and steady liberation of tracer gas SF6. Gas concentration and temperature in gob are measured and three oxidation areas in goaf are determined. According to oxidation experiment of coal and in-site measurements, the gases of carbon monoxide and dioxide can be produced laraely by coal and oxygen combination at ambient temperature and the temperature of coai and rock In goaf con rise 10℃ due to heat produced by coai and oxygen combination.There is a great risk of spontaneous combustion in neighboring oId gob because of air leakage for pillar mining.
引用
收藏
页码：48 / 52
页数：5
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