关于提高改性铵油炸药深孔爆破效果的研究探讨

改性铵油炸药装药密度大，在深孔爆破中容易出现“压死”现象。文中采用调整木粉细度和配比，外加一定量珍珠岩和一定量的膨化硝铵炸药等方案来降低装药密度。研究表明，调整木粉的细度及比例（3％-5％）对改善改性铵油炸药装药密度影响较小．外加1．0％-1．5％珍珠岩能有效降低装药密度，加入一定量的珍珠岩对炸药生产制备过程比较安全可靠；外加一定量（20％～30％）的膨化硝铵炸药能显著降低装药密度，加入比例越大（50％）效果越明显，同时能有效提高产品起爆感度。通过改进爆破使用方法，可有效提高改性铵油炸药深孔爆破使用效果。

Discussion on Improving the Deep-hole Blasting Effect of Modified ANFO

Due to the large charge density of modified ANFO,the phenomenon of dead pressed is prone to in the deep-hole blasting.The experimental research to reduce the charge density by adjusting the fineness and proportion of wood powder;adding a certain amount of perlite or expanded ammonium nitrate explosive,and so on,was carried out in this paper.Results show that adjusting the fineness of the wood and proportion(3% ~ 5%) has little influence on the charge density of ANFO,while adding 1 percent to 1.5 percent of ...