煤矿安全2019，Vol.50Issue(1)：29-32,37,5.DOI:10.13347/j.cnki.mkaq.2019.01.008
煤与油页岩共采条件下自然发火标志气体及预报指标体系研究
Study on Marked Gas of Spontaneous Combustion and Forecasting Index System Under Coal and Oil Shale Mining Conditions
摘要
Abstract
In view of the problem of the index gas preference in the spontaneous combustion of the goaf under the conditions of coal and oil shale mining in Liangjia Coal Mine, the sample from 1105 working face was selected to simulate the natural gas content of coal and oil shale using a temperature programing experiment. The generation laws of CO, olefins, alkanes and their ratios were analyzed, and the forecasting technology of coal and oil shale spontaneous combustion was studied. The results show that the critical temperature of CO is around 40 ℃, and this marked the beginning of a reaction of coal and oil shale; C2H4 appears at about 120 ℃, indicating that the coal and oil shale had entered the stage of accelerated oxidation; C2H4/C2H6, C2H4/C3H8 can be used as the auxiliary gases for predicting the spontaneous combustion of coal and oil shale. At the same time, according to the gas release amount of CO, C2H4, etc, the identification parameters for the spontaneous combustion of coal and oil shale in Liangjia Coal Mine were determined.关键词
煤与油页岩/自然发火/程序升温/标志气体/预测预报体系/矿井火灾Key words
coal and oil shale/spontaneous combustion/temperature programing/indicator gas/forecasting system/mine fire分类
矿业与冶金引用本文复制引用
梁赛江,宋相,樊程,王刚..煤与油页岩共采条件下自然发火标志气体及预报指标体系研究[J].煤矿安全,2019,50(1):29-32,37,5.基金项目
国家自然科学基金资助项目(51704299) （51704299）
煤炭资源与安全开采国家重点实验室开放课题资助项目(SKLCRSM17KFA10) （SKLCRSM17KFA10）
河南省瓦斯地质与瓦斯治理重点实验室-省部共建国家重点实验室培育基地开放基金资助项目(WS2018A03) （WS2018A03）
