晋城矿区整合矿井煤程序升温特性试验研究  

Coal temperature program characteristics experiment research of integrated mines in Jincheng mining area

作　　者：张群[1,2,3] 姚海飞[1,2,3] 徐长富[1,2,3] 吴海军[1,2,3] 郑忠亚[1,2,3] 

机构地区：[1]煤炭科学技术研究院有限公司安全分院,北京市朝阳区100013 [2]煤炭资源高效开采与洁净利用国家重点试验室(煤炭科学研究总院),北京市朝阳区100013 [3]北京市煤矿安全工程技术研究中心,北京市朝阳区100013

出　　处：《中国煤炭》2016年第7期73-78,共6页China Coal

基　　金：中国煤炭科工集团有限公司科技项目青年基金项目(2016QN002);中国煤炭科工集团科技创新基金资助项目(2012MS001)

摘　　要：针对晋城矿区整合矿井集中存在的破坏区块多、采空区漏风严重等问题，选取大峪15^#、仙泉15^#、晋平10^# 3个煤层开展了程序升温特性试验，分析了CO及烃类气体产生量随煤温的变化：观律，测算了自燃临界温度，优选了自燃标志气体指标。结果表明，计算得出大峪、仙泉、晋平3个煤层的自燃临界温度分别为85℃、74℃、55℃，其大小反映了煤初期氧化能力的强弱；根据煤自燃标志气体优选原则，建议将CO和C2H4作为煤自燃预测预报的主要指标，辅以规律性良好的其它非吸附烃类气体、链烷比和烯烷比。研究结果对提高晋城矿区类似整合矿井煤自燃预测预报准确度和火灾防治水平具有指导意义。Temperature program characteristics experiment was taken with Dayu 15 #, Xianquan 15 # and Jinping 10 # coal seams to solve existing problems at integrated mines in Jincheng mining area, such as many broken blocks and severe air leakage in goal The experiment analyzed the variation law of carbon monoxide and hydrocarbon gas production with coal temperature, calculated critical temperature of spontaneous combustion and chose spontaneous combustion sign gas index. The result indicated： criti- cal temperature of spontaneous temperature at Dayu, Xianquan, and Jinping is 85℃, 74℃, 55℃, respectively. The magnitude of this temperature reflects the oxidation ability of coal during early stage; ac-cording to optimization principle of coal spontaneous combustion sign gas, it is suggested to choose CO and CH4 as main forecast index of coal spontaneous combustion, associated with other well-regularity- behaved non-adsorbed hydrocarbon gas, chain-alkane ratio and olefin ratio. The experiment was proven that could increase accuracy of coal spontaneous combustion prediction at similar integrated mines in Jincheng mining area and improve fire accident prevention.

关 键 词：整合矿井 程序升温特性 标志气体 临界温度 煤自燃预测预报 

分 类 号：TD752[矿业工程—矿井通风与安全]