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大宝山矿是一个以铜铁为主的大型多金属矿床。近年来,平均年消耗炸药约600t。1982年以前,炸药以自产铵松蜡为主。1983年正式生产并使用CRH型乳化炸药。几年来,随着乳化炸药在大宝山矿产量的增加,使延米爆破量上升,炸药单耗降低、爆破成本下降,而且幅度较大(图1)。这证实了CRH型乳化炸药在矿山使用具有较强的生命力。1984年至1985年6月,长沙矿冶研究院与大宝山矿进一步协作,将原有的连续乳化、分段发泡敏化、人工装
Dabaoshan mine is a copper-iron-based large-scale polymetallic deposit. In recent years, the average annual consumption of explosives about 600t. Before 1982, the explosives were mainly ammonium sulfonates. 1983 formally produced and used CRH emulsion explosives. In recent years, with the increase of the amount of emulsion explosives in the Dabaoshan Mine, the amount of explosives increased, the unit consumption of explosives decreased, the cost of blasting decreased, and the magnitude was larger (Figure 1). This confirms the CRH-type emulsion explosive used in the mine has a strong vitality. From 1984 to June 1985, Changsha Institute of Mining and Metallurgy further cooperation with the Dabaoshan Mine, the original continuous emulsification, segmented foam sensitization, artificial equipment