煤矿安全2019，Vol.50Issue(2)：19-24,29,7.DOI:10.13347/j.cnki.mkaq.2019.02.005
气煤自燃特征参数规律研究
Study on Characteristic Parameters Laws of Gas Coal Spontaneous Combustion
摘要
Abstract
To reveal the characteristic parameters laws of gas coal spontaneous combustion, the test system for spontaneous index gases was established to deeply analyze the characteristic parameters laws of gas coal spontaneous combustion. The results show that the laws of CO/CO2 can reflect the trend of gas coal spontaneous combustion. The critical temperature of Baode gas coal is 42℃, and the cracking temperature is 101 ℃. The production rate of CO increases slowly then increases sharply and the temperature turning point is 100 ℃. The production rate of CO2 increases with coal temperature. The production rate of CH4 increases firstly then decreases with the increase of coal temperature and the extreme point coal temperature is 130 ℃. The oxygen consumption rate increases slowly before 100 ℃, then increases rapidly when the coal temperature is higher than 100 ℃. In addition, the maxi-mum and minimum exothermic strength increase with the increasing of coal temperature. Based on the above studies, the charac-teristic parameters laws of gas coal spontaneous combustion were obtained, and it provides a theoretical basis for scientific and ef-fective prevention of gas coal spontaneous combustion.关键词
气煤/煤自燃/标志性气体/耗氧速率/特征温度/矿井火灾Key words
gas coal/coal spontaneous combustion/index gas/oxygen consumption rate/characteristic temperature/mine fire分类
矿业与冶金引用本文复制引用
朱红青,赵鸿儒,李珂,王晓宽,李世祥..气煤自燃特征参数规律研究[J].煤矿安全,2019,50(2):19-24,29,7.基金项目
国家自然科学基金资助项目(51379119,51509149,41472281) （51379119,51509149,41472281）
煤矿安全高效开采省部共建教育部重点实验室开放基金资助项目(JYBSYS2014106) （JYBSYS2014106）
矿业工程一流学科建设专项资助项目(01CK00605,03CK01702) （01CK00605,03CK01702）
