煤田地质与勘探2017，Vol.45Issue(5)：28-32,5.DOI:10.3969/j.issn.1001-1986.2017.05.006
热模拟实验中低变质煤的突出参数变化特征
Change features of outburst parameters in the thermal simulation experiment of low metamorphic coal
摘要
Abstract
In order to study the evolution and preparation process of the gas outburst of coal body,we put the low metamorphic coal in sealed reactor under the action of heating to metamorphose and generate gas,maybe develop into coal and gas mixture with outstanding potential.In this way,we carry out the coal and gas outburst simulation experiment on inoculation evolution appearance.Research results show that the total amount of gas produced at relatively high experimental temperatures(450℃) is more than the total amount of gas produced at relatively low experimental temperatures(200℃),the production of the former is almost 10 times than the latter,and the corresponding Vdaf,f and AP change 5 to 7 times.It indicates that temperature could change the chemistry structure of coal and then produce gas,and gas changes the physical structure when gas is produced.Their comprehensive effect increases the risk of coal outburst danger.It can be inferred from the experiment that along with the temperature increasing,the degree of coal metamorphism deepening,coal is more likely to be broken,the danger of coal outburst increases too.关键词
煤与瓦斯突出/热模拟实验/产气规律/突出参数Key words
coal and gas outburst/thermal simulation/law of gas generation/outburst parameters分类
矿业与冶金引用本文复制引用
何俊,郑则用,陈亮..热模拟实验中低变质煤的突出参数变化特征[J].煤田地质与勘探,2017,45(5):28-32,5.基金项目
国家自然科学基金项目(41372161) National Natural Science Foundation of China(41372161) （41372161）
