瓦斯对煤自燃特性参数影响的实验研究  

Experimental Study on Influence of Gas on Characteristic Parameters of Coal Spontaneous Combustion

作　　者：邓军[1,2] 李鹏[1,2] 程文东[1] 袁林[1,2] 姚飞 

机构地区：[1]西安科技大学能源学院,陕西西安710054 [2]西部矿井开采及灾害防治教育部重点实验室,陕西西安710054 [3]山西和顺天池能源有限责任公司,山西和顺032705

出　　处：《煤矿安全》2014年第11期31-33,37,共4页Safety in Coal Mines

基　　金：国家重点基础研究发展计划(973计划)前期研究资助项目(2011CB411902);国家自然科学基金资助项目(51134019;51204135;51304155;51244001)

摘　　要：选取原煤样、经过瓦斯解吸处理和通甲烷处理的3种不同瓦斯含量的混合煤样,利用程序升温实验对其自燃特性参数进行实验研究,通过对不同煤温条件下的耗氧速率、CO产生率、CO2产生率及放热强度进行分析,得到了氧化自燃过程中瓦斯对煤氧化自燃特性的影响规律,揭示了瓦斯对煤自燃的抑制作用。Three different coal samples which include the original coal sample, the coal sample treated by methane desorption and the coal sample treated by methane were selected, theirs spontaneous combustion characteristic parameters were studied through pro- grammed heating experiment. The influence laws of gas on the characteristic parameters of coal spontaneous combustion during the peri- od of oxidation and spontaneous combustion was drew by analyzing the oxygen consuming velocity, carbon monoxide producing velocity, carbon dioxide producing velocity and the exothermie intensity under different coal temperatures, which revealed an inhibition effect of gas on coal spontaneous combustion.

关 键 词：瓦斯 煤自燃 产生率 耗氧速度 放热强度 

分 类 号：TD752.2[矿业工程—矿井通风与安全]