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看到1978年第四期《煤矿安全》上刊登的“放炮爆燃现象的原因分析及防治措施”一文后,很受启示。现将我矿发生的二次爆炸现象分析如下:二次爆炸就是当通电起爆后,待3—5分乃至15—20分钟后,又在原处突然爆炸的现象。这种二次爆炸(在我矿叫“一炮二响”)是极易发生事故的一种可怕现象。我矿从1964年已全部进入太原系薄煤层(煤层厚度为0.8米左右),因而回采巷道全部是半
Seeing the fourth issue of “Coal Mine Safety” in 1978, the article entitled “Analysis of causes of deflagration in fireworks and its prevention and treatment” was very much inspired. Now mine mine secondary explosion phenomenon is as follows: The second explosion is when the power detonated, to be 3-5 minutes or even 15-20 minutes, but also in the place of a sudden explosion phenomenon. This second explosion (in my mine called “One Gun, Two Bells”) is a terrible accident prone. My mine from 1964 has all been into the Department of thin coal seam in Taiyuan (seam thickness of about 0.8 meters), so the mining roadway are all half