陕西煤炭
陝西煤炭
협서매탄
SHAANXI COAL
2011年
5期
55-57
,共3页
5#煤层煤样%程序升温%煤自燃
5#煤層煤樣%程序升溫%煤自燃
5#매층매양%정서승온%매자연
sample of 5# coal seam%temperature-programmed%coal spontaneous combustion
近年来,王村煤矿多次出现井下松散煤体自燃预兆,影响矿井的安全生产。为了掌握该矿煤自燃规律,准确预测煤自燃火灾,对5#煤样进行了自燃程序升温实验,根据实验结果确定该矿区5#煤层的自燃临界温度、裂化温度以及CO、CH4气体浓度与温度关系等自燃特性参数,并进一步分析了耗氧速度、C2H6、C2H4等指标气体的变化规律,对5#煤层煤自燃规律进行了初步探讨。
近年來,王村煤礦多次齣現井下鬆散煤體自燃預兆,影響礦井的安全生產。為瞭掌握該礦煤自燃規律,準確預測煤自燃火災,對5#煤樣進行瞭自燃程序升溫實驗,根據實驗結果確定該礦區5#煤層的自燃臨界溫度、裂化溫度以及CO、CH4氣體濃度與溫度關繫等自燃特性參數,併進一步分析瞭耗氧速度、C2H6、C2H4等指標氣體的變化規律,對5#煤層煤自燃規律進行瞭初步探討。
근년래,왕촌매광다차출현정하송산매체자연예조,영향광정적안전생산。위료장악해광매자연규률,준학예측매자연화재,대5#매양진행료자연정서승온실험,근거실험결과학정해광구5#매층적자연림계온도、열화온도이급CO、CH4기체농도여온도관계등자연특성삼수,병진일보분석료모양속도、C2H6、C2H4등지표기체적변화규률,대5#매층매자연규률진행료초보탐토。
Recent years,the harbingers of coal spontaneous combustion emerged in Wangcun coal mine many times.In order to know the law of coal spontaneous combustion and to forecast the coal spontaneous combustion,the temperature-programmed test is used.Based on the tests,the paper summarized the limit parameters of coal spontaneous combustion,such as critical temperature,cracking temperature and the concentration change of CO,CH4,etc,analyzed the oxygen consumption velocity and the change law of C2H6,C2H4 and discussed the laws of 5# coal spontaneous combustione.
