渝阳矿煤层自燃标志气体及临界值的研究

Research on sign gas and critical value of coal spontaneous combustion in Yuyang Mine

煤炭科学研究总院重庆研究院对渝阳煤矿送去的煤样进行了化验分析,得出M8煤层属Ⅱ类自燃煤层的结论,临界温度为180℃,对煤自然发火原因、机理进行了研究,找出煤层自然发火规律,确定煤层自燃标志气体及临界值;针对煤层的自燃特点,研究煤自燃预测预报技术,提高了煤自燃预测预报的准确率,并采取针对性措施防止煤层自燃。

Chongqing Research Institute of CCRI did the chemical analysis on the coal samples from Yuyang Mine,and obtained the conclusion that M8 coal seam belongs to class II spontaneous combustion coal seam,and the critical temperature is 180 ℃.The causes of coal spontaneous combustion and mechanism have been studied,and the coal spontaneous combustion law has been found out,and the sign gas and critical value of coal spontaneous combustion have been determined.Aiming at the characteristics of coal spontaneous combustion,the paper has researched the prediction technology for it,which has improved the prediction accuracy of coal spontaneous combustion,and then the corresponding measures can be taken to prevent coal seam spontaneous combustion.