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一、矿井中的爆炸危险 不少煤矿均普遍存在着煤尘爆炸危险,在有沼气的巷道中,这种危险尤为突出。但是,从沼气采区中采得的煤的数量却在不断增加,目前占矿井产量一半以上的煤均采自沼气煤层。对若干矿井的爆炸事故所进行的研究及分析表明:在沼气巷道中,煤尘发生初始爆炸的可能性比同类煤尘条件下的非沼气采区巷道中煤尘发生初始爆炸的可能性大得多。因为井下的沼气比煤尘更容易被引燃,
First, the danger of explosions in mines Many coal mines are generally the danger of coal dust explosion in the roadway with biogas, this danger is particularly prominent. However, the amount of coal taken from biogas mined areas is steadily increasing, with more than half of the coal currently being produced from biogas seams. The research and analysis on several mine explosion accidents show that in the biogas tunnel, the probability of the initial explosion of coal dust is more likely than the initial explosion of coal dust in the roadway of non-biogas mining area under the condition of similar coal dust many. Because underground gas is more easily ignited than coal dust,