煤矿安全2017，Vol.48Issue(4)：36-39,4.DOI:10.13347/j.cnki.mkaq.2017.04.010
煤自燃降温过程实验研究
Experimental Study on Spontaneous Cooling Process of Coal
摘要
Abstract
In order to study the cooling process of fire zone after coal spontaneous combustion,we used XK-Ⅶ coal spontaneous combustion experiment device to research spontaneous heating,cooling process of coal samples.We comparatively analyzed the coal temperature variation,migration of hot spots,index gases and gas ratio of heating process and cooling process.The results show that the heating process and cooling process of coal spontaneous combustion is asymmetrical;the temperature variation laws of heating process and cooling process both have segmentation;the maximum temperature point moves to the deeper of the return air side in the cooling process,in contrast to heating stage;disappearance temperature of alkane gas in cooling process is higher than that of the heating process;ratio of CO/O2,CO2/CO in cooling process is higher than that of the heating process at the corresponding temperature.关键词
煤自燃/降温过程/对比研究/温度/特征气体Key words
spontaneous combustion of coal/cooling process/comparative study/temperature/index gas分类
矿业与冶金引用本文复制引用
金永飞,仝玉轩,刘文永,张泽,邓润义..煤自燃降温过程实验研究[J].煤矿安全,2017,48(4):36-39,4.基金项目
中国博士后科学基金资助项目(2014M552466,2016M592820) （2014M552466,2016M592820）
陕西省基础研究计划资助项目(2016JM5022) （2016JM5022）
