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1982年9月27～29日,冶金部在首钢矿山公司召开了首钢水厂铁矿大区多排微差爆破技术鉴定会。长沙矿冶所和首钢矿山公司为解决水厂铁矿爆破工作中孔网参数小、超深和填塞长度较大、延米爆破量低、大块率较高等问题,共同承担了水厂铁矿大区多排微差爆破技术的研究工作。在试验研究中,制定了“扩大孔网参数,提高炮孔邻近系数”的技术方案。通过大量的试验研究工作,显著地改善了爆破技术经济指标并取得较大
September 1982 27 ~ 29, the Ministry of Metallurgical Shougang Mining Company Shougang Iron and Steel Mine Iron ore in a large area of several millisecond blasting technical appraisal. Changsha Mining and Shougang Mining Company to solve the iron ore blasting work in the hole network parameters of small, ultra-deep and packing length is large, low-volume blasting blast, block rate is higher and so on, shared water plant iron ore Large area millisecond blasting technology research work. In the experimental study, we developed the technical scheme of “expanding the parameters of the hole network and improving the adjacent coefficient of the hole”. Through a large number of experimental research work, significantly improved the economic indicators of blasting technology and made larger