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合理布置岩体中的最佳炸药量和增大穿爆能的有效利用率,可提高开采工作爆破作业(规定的矿石破碎质量、小的矿石爆堆、良好的台阶坡底)和选矿(降低破碎、磨矿能耗和研磨体耗量,提高精矿回收率和产率)的综合指标。有关炸药最佳单耗的问题,主要是从采矿工作的观点进行了研究,对选矿工作考虑较少。爆破能耗约占生产精矿总能耗的1％;爆破能价格比电能价格高一个数量级。因此,炸药的单位耗量必须保证开采工
Reasonable arrangement of the optimal amount of explosives in the rock mass and an increase in the effective utilization of the blasting energy can increase the blasting operations (prescribed ore crushing quality, small ore blast, good step bottom) and beneficiation (decrease Broken, grinding energy consumption and grinding body consumption, improve the recovery and yield of concentrate) comprehensive index. The best unit consumption of explosives, mainly from the mining point of view of the study, less consideration for dressing work. Blasting energy consumption accounts for about 1% of the total energy consumption of concentrates; blasting can cost an order of magnitude more than electricity prices. Therefore, the unit of explosives consumption must ensure that mining workers