优化介质制度提高中矿再磨作业质量的试验研究  

Experimental Study on Optimization of Regrinding Medium in a Copper Ore in Anhui Province

作　　者：邓禾淼 肖庆飞[2,3] 黄胤淇 郭运鑫 Deng Hemiao;Xiao Qingfei;Huang Yinqi;Guo Yunxin(l.Dongguashan Copper Mine,Tongling Nonferrous Metals Group Co.,Tongling,Anhui,China;Faculty of Land Resource Engineering,Kunming University of Science and Technology,Kunming,Yunnan,China;State Key Laboratory of Mineral Processing,Bering,China)

机构地区：[1]铜陵有色金属集团股份有限公司冬瓜山铜矿,安徽铜陵244031 [2]昆明理工大学国土资源工程学院,云南昆明650093 [3]矿物加工科学与技术国家重点实验室,北京100160

出　　处：《矿产综合利用》2019年第6期37-40,32,共5页Multipurpose Utilization of Mineral Resources

基　　金：国家自然科学基金面上项目“多级配球介质磨矿的能量匹配及机理研究”(51774517);矿物加工科学与技术国家重点实验室开放研究基金“磨矿介质在磨机中的运动规律研究”(201707)联合专项资助

摘　　要：为了改善安徽某铜矿选厂中矿再磨Φ4.0 m×6.7 m磨机磨矿产品粒度组成,本文分别采用钢球和钢锻作为磨矿介质对中矿再磨磨矿效果进行对比试验,最终选用钢锻作为选厂中矿再磨Φ4.0 m×6.7 m磨机的磨矿介质,其初装尺寸组成为:35×40:25×30:20×25=20:40:40。试验结果表明:推荐的钢锻方案较现场方案,磨矿产品粒度均匀性明显得到提高,-0.038 mm产率提高了2.26%,中间易选级别-0.038+0.010 mm产率提高了3.25%,而且,该推荐方案较推荐钢球配比,-0.010 mm产率减少了2.27%,中间易选级别-0.038+0.010 mm产率提高了1.03%,为提高铜的浮选回收率创造了有利条件,同时对提高中矿再磨作业质量具有一定的指导意义。In order to improve the grain size composition of grinding products in a mill of a copper mine in Anhui province,steel ball and steel forging were used as grinding media to compare the grinding effects of the mill,and steel forging was finally used as grinding media for the mill of 4.0× 6.7m with the initial size composition of 35× 40:25× 30:20× 25=20:40:40.The test results show that the grain size uniformity of grinding products is obviously improved by the recommended steel forging scheme compared with the field scheme,the yield of-0.038 mm is increased by 2.26 %,and the yield of-0.038 + 0.010 mm is increased by 3.25 %,moreover,the yield of-0.010 mm is decreased by 2.27 %,and the yield of-0.038 + 0.010 mm is increased by 1.03 % compared with the recommended steel ball ratio,which creates favorable conditions for improving the flotation recovery rate of copper and has certain guiding significance for improving the quality of secondary grinding operation.

关 键 词：铜矿 中矿再磨 磨矿产品 粒度组成 磨矿介质 选矿指标 

分 类 号：TD982[矿业工程—选矿]