曾经在一个掘进工作面发生这样的一幕:班组正常接班后,很快打完炮眼,开始装填炸药。按照煤矿安全规定,装填炸药必须正向装药,管药装好后,要认真堵塞炮眼,才会产生安全、有效、可靠的爆破效果,提高工作效率。一般堵塞炮眼的物质是黏 Once in a driving face such a scene: the team after the normal succession, quickly finished hole, began filling explosives. In accordance with the provisions of coal mine safety, filling explosives must be forward charge, tube medicine installed, it is necessary to seriously block the hole, will produce safe, effective and reliable blasting effect and improve work efficiency. The general blockage of the material is sticky