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一、前言 关于通过气体分析了解煤层自然发火的方法,有通过检查CO、C_2H_4的办法和检查除CH_4以外的链烷烃与CH_4的比率变化等方法。然而这些指标气体是否适用于推断自然发火的熄灭的研究报告还不太多,所以本文作者在自然发火区域断绝空气的情况下,为了判断自然发火能否趋向于熄灭,研究了两种试验结果,即实验室气体分析方法的实验结果和井下自然发火地点实际的分析结果,现报告如下。
I. INTRODUCTION Methods for understanding spontaneous combustion of coal seams through gas analysis include methods for examining CO, C 2 H 4, and examining changes in the ratio of paraffins to CH 4 other than CH 4. However, there are not many reports on whether these indicator gases are suitable for inferring the extinction of spontaneous combustion. Therefore, in order to determine whether spontaneous combustion tends to extinguish in the case of air being cut off in a spontaneous combustion area, the authors studied two test results, That is, the experimental results of laboratory gas analysis method and the actual analysis results of underground spontaneous combustion sites are as follows.