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1、前言煤矿井下的火灾,由于向有限的空间内存在的大量可燃物送风而造成其燃烧快速蔓延,所以在消火时不得不采取密闭巷道或水淹等带有极大损失的措施。作为井下灭火的一个方法,笔者等进行了将快速气化的液氮送入巷道内,利用降低通风风流中氧气浓度的方法,即关于惰性化灭火技术的研究。在模拟巷道中实验的结果已在第一报中报导过
1, Foreword Coal mine fires, due to the existence of a large amount of combustibles in the limited space of the air supply caused its rapid spread of combustion, so fire extinguishing had to take measures such as confined roadway or flooding with great losses. As a method of underground fire, the author carried out the rapid gasification of liquid nitrogen into the roadway, the use of ventilation to reduce the concentration of oxygen in the air method, that is, on the inertization of fire fighting technology research. The results of experimenting in a simulated roadway have been reported in the first paper