基于程序升温试验的自燃气体产生规律及临界氧浓度指标研究  

Generation Law and Critical Oxygen Concentration of Spontaneous Combustion Gas Based on Programmed Temperature Rise Test

作　　者：谢承莹 杨建武 卫伟 Xie Chengying;Yang Jianwu;Wei Wei(Jinneng Holding Coal Industry Group Meiyukou Mine,Shanxi Datong 037041;Shanxi Coal Transportation and Sales Group Science and Technology Research Co.,Ltd.,Shanxi Taiyuan 030000)

机构地区：[1]晋能控股煤业集团煤峪口矿,山西大同037041 [2]山西煤炭运销集团科学技术研究有限公司,山西太原030000

出　　处：《山东煤炭科技》2023年第7期126-128,共3页Shandong Coal Science and Technology

摘　　要：为了研究煤峪口矿1/3焦煤的临界氧浓度指标,提高矿井的防灭火措施的有效性和针对性,采取煤样程序升温试验的方法,在供氧浓度分别为20.9%、10%、7%时,进行了煤样升温产气规律试验,获得了不同供氧条件下,CO和CO_(2)气体、烯烃气体、烷烃气体、乙炔气体的产生规律。通过对比分析最终得出,煤峪口矿1/3焦煤试验煤样自然发火临界氧气指标为7.0%。In order to study the critical oxygen concentration index of 1/3 coking coal in Meiyukou Mine and improve the effectiveness and pertinence of fire prevention and extinguishing measures in the mine,the method of coal sample programmed heating experiment is adopted.At oxygen supply concentrations of 20.9%,10%,and 7%,coal sample heating gas production law experiments are conducted,and the production laws of CO and CO_(2) gas,olefin gas,alkane gas,and acetylene gas are obtained under different oxygen supply conditions.Through comparative analysis,it is finally concluded that the critical oxygen index for natural ignition of 1/3 coking coal experimental coal sample in Meiyukou Mine is 7.0%.

关 键 词：程序升温 临界氧浓度 1/3焦煤 指标气体 自燃三带 

分 类 号：TD752.2[矿业工程—矿井通风与安全]