华北科技学院学报
華北科技學院學報
화북과기학원학보
JOURNAL OF NORTH CHINA INSTITUTE OF SCIENCE AND TECHNOLOGY
2014年
4期
14-18
,共5页
采空区%自燃%程序升温%标志性气体
採空區%自燃%程序升溫%標誌性氣體
채공구%자연%정서승온%표지성기체
goaf%coal spontaneous combustion%temperature programmed%index gas
佳瑞矿15101工作面属于近距离煤层开采,采空区为松散煤岩混合体。实验室开展了14#、15#煤的程序升温实验,分析了煤自燃过程中各气体的生成量与温度之间变化规律。结果表明:两个煤层自燃生成的CO、C2 H4、CH4等气体变化规律基本相同,C2 H6气体变化规律差异明显。综合确定了佳瑞矿采空区煤炭自燃标志性气体指标为CO、C2 H4及C2 H2,为预防采空区煤炭自燃提供了依据,有效保障煤矿的安全高效生产。
佳瑞礦15101工作麵屬于近距離煤層開採,採空區為鬆散煤巖混閤體。實驗室開展瞭14#、15#煤的程序升溫實驗,分析瞭煤自燃過程中各氣體的生成量與溫度之間變化規律。結果錶明:兩箇煤層自燃生成的CO、C2 H4、CH4等氣體變化規律基本相同,C2 H6氣體變化規律差異明顯。綜閤確定瞭佳瑞礦採空區煤炭自燃標誌性氣體指標為CO、C2 H4及C2 H2,為預防採空區煤炭自燃提供瞭依據,有效保障煤礦的安全高效生產。
가서광15101공작면속우근거리매층개채,채공구위송산매암혼합체。실험실개전료14#、15#매적정서승온실험,분석료매자연과정중각기체적생성량여온도지간변화규률。결과표명:량개매층자연생성적CO、C2 H4、CH4등기체변화규률기본상동,C2 H6기체변화규률차이명현。종합학정료가서광채공구매탄자연표지성기체지표위CO、C2 H4급C2 H2,위예방채공구매탄자연제공료의거,유효보장매광적안전고효생산。
The 15101 work face of Jiarui Mine is close distance coal seams mining , and the goaf is loose mix-ture of coal and rock.Through programmed temperature experiments of 14#and 15#coal samples , the relation-ship between different gas generation rate of coal spontaneous combustion and temperature were analyzed .The results show that the generation law of CO , C2 H4 and CH4 etc of two coal seams are basically the same , and the generation law of C 2 h6 is distinctively different.The goaf coal spontaneous combustion index gas of Jiarui Mine is determined, and the index is CO, C2 H4 and C2 H2.The research result provides a reliable basis for preventing the coal spontaneous combustion in the goaf , and guarantees the safe and high efficient production of coal mine.