一、前言迄今为止关于煤尘爆炸的研究报告,主要依据条件为:1.煤尘云的浓度均一;2.不考虑煤尘云的流动情况;3.同一煤尘试料的爆炸特性,在试验期间没有变化。但笔者根据煤尘爆炸火焰传播情况,进行了一系列试验认为,按照上述并不能充分说明煤尘爆炸火焰的传播现象。关于煤尘云的浓度均一问题,在井下各处煤尘均匀堆积的情况很少,一般是,靠近 I. Preface So far, the research report on coal dust explosion mainly depends on the following conditions: 1. The concentration of coal dust cloud is uniform; 2. The flow of coal dust cloud is not considered; 3. The explosion characteristic of the same coal dust sample is No change during the test. However, based on the situation of coal dust explosion flame spread, the author conducted a series of experiments that can not fully explain the spread of coal dust explosion flame according to the above. On the uniform concentration of coal dust clouds, coal dust in the underground accumulation of all parts of the situation rarely, generally, close