煤低温氧化活化能与温度关系实验  

Test of the Relationship between Activation Energy of Low-temperature Oxidation of Coal and Temperature

作　　者：高思源[1] 李增华[1] 杨永良[1] 刘震[1] 

机构地区：[1]中国矿业大学安全工程学院,江苏徐州221008

出　　处：《煤矿安全》2011年第7期23-27,共5页Safety in Coal Mines

摘　　要：为了研究煤低温氧化升温过程中化学反应活化能的变化规律,利用煤自然发火实验测定了不同自燃倾向性堆积煤煤低温氧化活化能。测试结果表明,煤的自燃倾向性越强,氧化反应的活化能越低,煤样的活化能随温度的升高而升高。在低于70℃时,温度上升得比较平缓;当温度高于70℃时,由于氧化反应类型发生了变化,活化能迅速升高。通过测试70℃以下温度段的氧化反应活化能,可以较准确地判断煤自燃倾向性。For studying change law of reaction activation energy in temperature rising process of coal low-temperature oxidation,it is determined by coal spontaneous combustion test that activation energy of low-temperature oxidation of tacking coal having defferent spontaneous combustion tendency.The results show that,the stronger spontaneous combustion tendency of coal is,the lower activation energy of oxidation reaction is,and activation energy of coal is increasing with increasing of temperature.In this process,at below 70℃,temperature increasing is gentle;and at above 70℃,activation energy increasing is rapidly as characteristic of oxidation reaction change.By determining activation energy of oxidation reaction at below 70℃,it can be judged accurately that spontaneous combustion tendency of coal.

关 键 词：煤自燃 活化能 温度 堆积煤 自燃倾向性 

分 类 号：TD752.2[矿业工程—矿井通风与安全]