【作者】 叶义成； 余心成； 张正文； 谭元；

【Author】 YE Yi-cheng ,YU Xin-cheng, ZHANG Zheng-wen,TAN Yuan (1. Wuhan University of Science and Technology,Wuhan 430081,China; 2. The Wulogquan Ore of Wuhan Iron and Steel Company, Wuhan 430213,China)

【机构】 武汉科技大学； 武钢乌龙泉矿；

【摘要】 针对乌龙泉矿优质石灰石矿段生产爆破中粉矿率过高,分析了粉矿产生的主要原因,探讨了降低粉矿率的爆破机理和生产技术对策。指出调整爆破方向,改变装药结构和孔网参数是主要技术手段。更多还原

【Abstract】 The ratio of mineral fine is excessively high in blasting wulongquan quality limestone. The reasons of producing the mineral fine in the whole process of blasting are analyzed. The explosive mechanism of lowering the mineral fine ratio and technological countermeasures are investigated. The results show that the main technological measures are to adjust the blasting direction,to change charging structure and drilling pattern parameters.更多还原