中国煤炭
中國煤炭
중국매탄
CHINA COAL
2015年
8期
124-127
,共4页
近距离煤层%瓦斯%内因火灾%复合型灾害%灾害防治技术
近距離煤層%瓦斯%內因火災%複閤型災害%災害防治技術
근거리매층%와사%내인화재%복합형재해%재해방치기술
close distance coal seams%gas%coal spontaneous combustion%compound type disaster%disaster prevention and control technology
以同煤集团煤峪口矿14＃煤层410盘区81006综采工作面为例,对近距离煤层开采期间瓦斯与内因火灾防治技术进行探讨。分析了煤自燃和瓦斯爆炸共生造成复合型灾害的威胁。通过采取巷道封闭抽放、穿层钻孔抽放的瓦斯治理措施和采空区注氮、邻近工作面注浆一体化火灾防治技术,81006工作面正常生产期间上隅角瓦斯浓度始终保持在0??8％以下、CO 浓度在0??001％左右,上覆采空区内 CO 浓度保持在0??005％以下,氧气浓度保持在3％~7％左右。
以同煤集糰煤峪口礦14＃煤層410盤區81006綜採工作麵為例,對近距離煤層開採期間瓦斯與內因火災防治技術進行探討。分析瞭煤自燃和瓦斯爆炸共生造成複閤型災害的威脅。通過採取巷道封閉抽放、穿層鑽孔抽放的瓦斯治理措施和採空區註氮、鄰近工作麵註漿一體化火災防治技術,81006工作麵正常生產期間上隅角瓦斯濃度始終保持在0??8％以下、CO 濃度在0??001％左右,上覆採空區內 CO 濃度保持在0??005％以下,氧氣濃度保持在3％~7％左右。
이동매집단매욕구광14＃매층410반구81006종채공작면위례,대근거리매층개채기간와사여내인화재방치기술진행탐토。분석료매자연화와사폭작공생조성복합형재해적위협。통과채취항도봉폐추방、천층찬공추방적와사치리조시화채공구주담、린근공작면주장일체화화재방치기술,81006공작면정상생산기간상우각와사농도시종보지재0??8％이하、CO 농도재0??001％좌우,상복채공구내 CO 농도보지재0??005％이하,양기농도보지재3％~7％좌우。
With 81006 fully mechanized working face of 410 panel of 14 # coal seam of Meiyukou coal mine in Datong Coal Mine Group Co??,Ltd?? as an example,the prevention and control technology of gas and coal spontaneous for close distance coal seam during mining period was discussed,and then,the threat of the compound type disaster of coal spontaneous combusG tion and gas explosion was analyzed?? By taking the gas control measures of roadway closed drainG age and layerGthrough drilling drainage and the integrated coal spontaneous combustion prevenG tion and control technology of goaf nitrogen injection and grouting by the nearby working face, the gas concentration of return corner of 81006 working face always keeps in below 0??8% and the concentration of carbon monoxide is about 0??001% during normal production,the concentration of carbon monoxide in the overlying goaf remains below the 0??005% and the oxygen concentraG tion maintains at around 3% to 7%.
