空孔布置在炮采工作面的应用

介绍一种新的煤层爆破工艺,该爆破工艺以布置不装药空孔为核心,通过空孔布置,创造并增加爆破自由面,达到宽孔距小抵抗线布置效果,提高了爆破效果及块煤率,火工消耗得以大幅下降,爆破负面效应得以有效降低,利于矿井安全生产效益的提高,极具推广意义和应用前景。

Application of Empty Holes Arrangement at Blasting Coal Face

A new coal seam blasting craft is introduced.the blasting craft takes empty holes as the core,through the empty holes layout,the free-surface is increased to the wide-pitch effect of a small resistance line layout.The blasting results and lump coal rate are improved.The priming system consumption greatly reduces,the blasting negative effects are effectively reduced,It is helpful to improve mine safety in production efficiency.It has the promotion of great significance and application prospects.