煤矿安全2019，Vol.50Issue(2)：10-13,18,5.DOI:10.13347/j.cnki.mkaq.2019.02.003
不同变质程度煤自燃特性实验研究
Experimental Study on Spontaneous Combustion Characteristics of Different Degrees of Metamorphic Coal
摘要
Abstract
The oxidation heating experiment of coal with different degrees of metamorphism was carried out by means of programmed heating experiment device, the relationship between critical temperature change, CO, CO2 and CH4 concentration change in the experimental process were analyzed. The results show that: the critical temperature increases with the increase of metamorphic coal of 64.79 ℃(long flame coal), 69.86 ℃(non-caking coal) and 71.23 ℃(gas coal); the concentration of CO, CO2 and CH4 decreases with the increase of the metamorphic degree. To a certain extent, the tendency of spontaneous combustion of coal decreases with the increase of coal metamorphism.关键词
煤变质程度/程序升温/临界温度/标志气体/自燃特性Key words
coal metamorphic grade/temperature programming/critical temperature/mark gas/spontaneous combustion characteristic分类
矿业与冶金引用本文复制引用
刘宇帅..不同变质程度煤自燃特性实验研究[J].煤矿安全,2019,50(2):10-13,18,5.基金项目
国家自然科学基金资助项目(51774182) （51774182）
大型油气田及煤气层开发专项资助项目(2016ZX05067004-003) （2016ZX05067004-003）
