与瓦斯突出火灾、爆炸有关的因素和模拟爆炸试验

摘要

通过在2 m长钢管和7 m3爆炸装置中用天然气做系列燃烧和爆炸试验,模拟煤矿瓦斯突出造成的火灾、爆炸,研究了点火源位置、点火发生时间、通风等因素的作用,认为加强加大通风量对防止瓦斯突出引起的火灾、爆炸起负(坏)作用.防止煤矿瓦斯突出产生的火灾、爆炸最重要措施是在瓦斯突出的瞬间探测到已发生了瓦斯突出,立即关闭所有火(电)源.《煤矿安全规程》规定有问题,能产生瓦斯突出重大火灾和爆炸.%A series of fire and explosion experiments were carried out utilizing 2 m steel pipe and 7 m3 explosion equipment, to simulate the fire and explosion caused by gas outburst. Effects of factors such as the location of the fire source, time of ignition occurred, and the ventilation were studied. It was believed that increasing the ventilation would have negative effects on preventing the fire and explosion caused by outburst, and the most important measures to prevent the fire from outburst is to probe the outburst fast when the outburst happened, and turn the power off.