中文摘要：

为了掌握高地温环境对煤自燃的影响规律,基于程序升温试验,测试分析了恒温40℃处理后升温煤样和常温条件下升温煤样的自燃特性参数,并利用CO浓度随温度变化求解煤体表观活化能的计算模型,对比分析了2组煤样在不同温度阶段的表观活化能变化规律。试验结果表明：高温处理后升温的煤样耗氧速率、CO产生率、CO2产生率和极限放热强度均高于常温条件下升温的煤样,且随着温度的升高该趋势越发明显,同时,其表观活化能均低于常温条件下升温煤样,尤其在低温阶段差异较大,表观活化能更低,说明高温环境导致煤体氧化放热性增强,氧化反应所需能量更低,同等条件下氧化反应速度更快,更容易氧化升温发生自燃,自燃危险性增大。

英文摘要：

In order to understand the influence law of high geo- temperature environment to coal spontaneous combustion,based on programmed temperature rising test,the paper had a test and analysis on the spontaneous combustion features and parameters of temperature risen coal samples after 40 ℃ constant temperature treatment or normal temperature condition. With the application of calculation model of CO density varied with temperature to solve coal mass apparent activation energy,the apparent activation energy variation law of the two group coal samples under different temperature stage were compared and analyzed. the test results showed that oxygen consumption rate,CO production rate,CO2 production rate and limit heat releasing strength of the temperature risen coal samples after high temperature treatment would be higher than the temperature risen coal samples under normal temperature,and with the temperature rising,the tendency would be more obvious. Meanwhile,the apparent activation energy would be lower than temperature risen coal samples under normal temperature and especially the difference would be higher at low temperature stage,the apparent activation energy would be lower,which showed that high temperature environment would cause high oxidization heat releasing from coal mass. The energy required to the oxidized reaction would be lower. At the same condition,oxidization reaction speed would be fast,would be easily oxidized and temperature risen to cause spontaneous combustion,thus the spontaneous combustion danger would be increased.