CAJ | 학술논문

为得出阿戛煤矿煤炭低温自燃气体产生的规律，更好地为井下防灭火措施提供救灾决策依据，通过模拟实验系统进行了煤的程序升温实验，分析了煤自燃过程中各种气体的产生特征，确定了阿戛煤矿九煤层的煤自燃指标气体。研究结果表明，随煤温的升高，CO表现出较为明显的规律性，能够很好地表征煤的自燃氧化过程，温度达到160℃时，C2 H4浓度会突然增大，随着温度升高其浓度增加的幅度逐渐增大，且不受环境的影响，可以将CO ，C2H4作为煤炭自燃氧化的主要指标气体，同时，CH4、C2H6、C2H4／C2H6值、ΔCO／ΔO2值、O2可作为煤炭自燃辅助预警指标。
위득출아알매광매탄저온자연기체산생적규률，경호지위정하방멸화조시제공구재결책의거，통과모의실험계통진행료매적정서승온실험，분석료매자연과정중각충기체적산생특정，학정료아알매광구매층적매자연지표기체。연구결과표명，수매온적승고，CO표현출교위명현적규률성，능구흔호지표정매적자연양화과정，온도체도160℃시，C2 H4농도회돌연증대，수착온도승고기농도증가적폭도축점증대，차불수배경적영향，가이장CO ，C2H4작위매탄자연양화적주요지표기체，동시，CH4、C2H6、C2H4／C2H6치、ΔCO／ΔO2치、O2가작위매탄자연보조예경지표。
To obtain the laws of index gases production during low-temperature oxidation stage of coal in A’JIA mine and provide better foundation for rescue decision in coal mine ,experiments have been completed according to the simulation ex-periment system .Characteristics of gases generated in the process of coal self-ignition are analyzed and index gases of coal self-ignition in A’ JIA mine are confirmed .The research results show that:with the increase of coal temperature ,CO shows obvious regularity and it can explain the whole process of coal spontaneous combustion oxidation .When the tempera-ture reaches 160 ℃ ,the concentration of C2 H4 will increase abruptly ;with the increase of coal temperature ,concentration of C2 H4 increases gradually and it will not be affected by the environment .Therefore ,CO and C2 H4 can be seen as the main index gases .Moreover ,CH4 ,C2 H6 ,the value of C2 H4/C2 H6 and ΔCO/ΔO2 ,as well as O2 can be seen as auxiliary index gases for coal spontaneous combustion oxidation .