MINING AREA OF FULLY-MECHANIZED WORKING
FACE WITH TOP-COAL DRAWING
罗新荣;李增华
【期刊名称】《煤炭学报：英文版》 【年(卷),期】1998(004)002
【摘要】Air leakage velocity in intake goaf and distribution of air leakage in mining area are de-termined by instantaneous and steady liberation of tracer gas SF6. Gas concentration and temper-ature in gob are measured and three oxidation areas in goal are determined. According to oxida-tion experiment of coal and in-site measurements, the gases of carbon monoxide and dioxide canbe produced largely by coal and oxygen combination at ambient temperature and the temperatureof coal and rock In goaf can rise 10 ℃ due to heat produced by coal and oxygen combination.There is a great risk of spontaneous combustion in neighboring old gob because of air leakage forpillar mining. 【总页数】5页(48-52)
【关键词】煤矿;SF6;自燃;管道气体;采矿安全 【作者】罗新荣;李增华
【作者单位】ChinaUniversityofMiningandTechnology,Xuzhou221008 【正文语种】英文 【中图分类】TD82
MINING AREA OF FULLY-MECHANIZED WORKING FACE WITH TOP-COAL DRAWING
