基于多指标参数的煤自燃进程分析及应用  

Analysis and Appplication of Coal Spontaneous Combustion Based on Multi-index Parameters

作　　者：石晶泰 任万兴[1,2] 赵乾坤 王振峰[1] 

机构地区：[1]中国矿业大学安全学院,江苏徐州221116 [2]煤矿瓦斯与火灾防治教育部重点实验室,江苏徐州221116

出　　处：《煤炭技术》2017年第10期175-177,共3页Coal Technology

基　　金：国家自然科学基金项目(51374202)

摘　　要：提出了火灾四象限法则。建立了多指标参数煤低温氧化进程分析体系,确定了煤自然发火的临界值:CO浓度高且持续增加,表明煤正在氧化,煤温小于90℃;C_2H_6/CH_4、CO/CH_4的安全临界值分别0.06和0.6,超过临界值说明煤氧化加剧;C_2H_4、C_2H_2为辅助指标,2种气体初现对应煤温80℃~90℃、190℃。利用该指标体系判定煤氧化,指导现场火灾防治。Four-quadrant law of fire is proposed. Multiple gas index-based technique to evaluate the process of low-temperature oxidation of coal is determined： The high concentration of CO and the continuous increasing indicated the coal is oxidizing and the coal temperature was less than 90℃. The critical safety values of C2H6/CH4 and CO/CH4 are respectively 0.06 and 0.6. C2H4, C2H2, as secondary index indicators, correspond to the coal temperature of 80℃-90℃, 190℃. This system is used to determine coal oxidation process guide the application of fire prevention and control.

关 键 词：指标气体 煤低温氧化 临界值 火灾防治 

分 类 号：TD752.2[矿业工程—矿井通风与安全]