煤层自燃预测参数指标体系的研究  

Indicator system for the prediction parameters of coal seam spontaneous combustion

作　　者：谢小利 段少飞 宁建平 XIE Xiaoli;DUAN Shaofei;NING Jianping(Shaanxi Nonferrous Yulin Coal Industry Co.,Ltd.,Yulin 719000,China)

机构地区：[1]陕西有色榆林煤业有限公司,陕西榆林719000

出　　处：《陕西煤炭》2025年第4期57-60,66,共5页Shaanxi Coal

摘　　要：陕西有色榆林煤业3号煤层为“Ⅰ”类容易自燃煤层,采空区防灭火压力较大。榆林煤业利用程序升温实验模拟得出3号煤层自然发火标志气体为CO、C_(2)H 4、C_(2)H_(6)、C_(3)H_(8);通过CO产生速率数学模型对30201工作面上隅角和回风巷CO指标临界值进行预测,确定了30201工作面上隅角CO安全管理浓度为35×10^(-6),并且根据矿井实际生产条件构建了3号煤层煤自然发火预测预报指标体系。The No.3 coal seam of Yulin Coal Industry of Shaanxi Nonferrous is“Ⅰ”class of easily spontaneous combustion with a certain difficulty of fire prevention and control in goaf.Through the program temperature-rising simulation,we obtain that marking gases of the 3#coal seam spontaneous combustion are CO,C_(2)H 4,C_(2)H_(6)and C_(3)H_(8);Using a mathematical model of CO generating rate,the critical value of the CO indicator at the corner of the 30201 work surface is predicted,and the safe management concentration of the upper corner CO at the work surface is determined to be 35×10^(-6),and according to the actual production conditions of the mine,the 3#coal seam’s self-igniting prediction and forecasting indicator system is constructed.

关 键 词：自然发火 标志气体 指标体系 

分 类 号：TD754[矿业工程—矿井通风与安全]