井下火灾是煤矿中的主要灾害之一。它既影响井下正常生产,而又威胁着工人们的人身安全。对井下火灾如何早期发现,及早扑灭,国内外煤矿安全工作者,开展过不少的探索研究工作。目前国内外一般地都是分析井下气样中的 CO 含量,做为早期发现井下火灾的技术指标。在我国一九六五年特别是从无产阶级文化大革命以后,平庄矿务局元宝山煤矿广大工人、干部和工程技术人员 Downhole fire is one of the major disasters in coal mines. It not only affects the normal underground production, but also threaten the personal safety of workers. How early detection of underground fire, early extinguishment, coal mine safety workers at home and abroad, carried out a lot of exploration and research work. Currently at home and abroad are generally analyzed in the gas sample downhole CO content, as early detection of underground fire technical indicators. In 1965, especially after the great proletarian cultural revolution in China, the vast numbers of workers, cadres and engineering technicians in the Yuanbaoshan Coal Mine in Pingzhuang Mining Bureau