双鸭山集贤煤矿煤样自燃性程序升温实验

Study on coal sample spontaneous combustion tendency determination of Shuangyashan Jixian mine

采用程序升温实验装置,通过实验分析,得出双鸭山集贤矿煤自燃预测预报的主要指标气体及其与温度的变化关系、煤样临界温度为65-75℃;通过计算得到不同粒度煤样在不同温度条件下的耗氧速度及CO、CO2、CH4等气体的产生速度随煤温变化的规律和随粒度变化的规律。

Through programmed temperature experiment and analyses with the experimental device of coal spontaneous combustion, the conclusion can be drawn that this coal mine＇s main index gas for coal self ignition fire hazard forecast is determined; and that the critical temperature is 65 - 75 ℃ ;Through calculation, the law of concentration changes for CO, CO2 etc and the relation of oxygen consumption velocity to coal temperature was achieved.