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一、前言用气体分析法早期发现煤自然发火的方法有测定空气中 CO 和 C_2H_4含量或测定去掉 CH_4的链烷类对于 CH_4的比率变化法等。但是,目前用这些气体指标判断自然发火的熄灭适用的研究报告还不多。本文系作者用试验室气体分析法的分析结果和井下实际自燃火区气体分析的结果相对比的方法判断火区停风后其火灾是否熄灭的研究报告。
I. INTRODUCTION The method of early detection of spontaneous combustion of coal by gas analysis has been used to measure the contents of CO and C_2H_4 in the air or to determine the ratio of paraffins to CH_4 by removing CH_4. However, there are not many reports on the application of these gas indicators to judge the extinction of spontaneous combustion. In this paper, the author uses the method of laboratory gas analysis and the actual spontaneous combustion zone gas analysis of the results of the gas method compared to determine the fire area after the wind stopped the fire extinguished the research report.