冬瓜山铜矿磨矿提质增效降耗的应用研究  

APPLICATION AND RESEARCH ON INCREASING GRINDING QUALITY AND EFFICIENCY,REDUCING BALL CONSUMPTION IN DONGGUASHAN COPPER MINE

作　　者：肖庆飞[1,2] 康怀斌[1,2] 赵红芬[3] 王周和 

机构地区：[1]省部共建复杂有色金属资源清洁利用国家重点实验室,昆明650093 [2]昆明理工大学国土资源工程学院,昆明650093 [3]铜陵有色金属集团控股有限公司技术中心,安徽铜陵244000

出　　处：《矿冶》2016年第3期17-20,共4页Mining And Metallurgy

基　　金：云南省科技计划项目基金(2013FZ022)

摘　　要：介绍了通过改变磨机球荷尺寸组成,提高安徽铜陵冬瓜山铜矿选矿厂磨矿质量和磨机利用系数,降低磨矿球耗的方法。根据冬瓜山铜矿的矿石力学性质和磨矿条件,利用球径半理论公式精确计算合理的补装球荷尺寸组成,即m(Ф60)∶m(Ф40)=45∶55。工业试验结果表明,采用新的补装球荷后,磨矿细度(-0.074 mm)和中间可选粒级(-0.15+0.01 mm)含量分别提高了7.60和5.76个百分点,不合格粗粒级(+0.15 mm)含量和过细粒级(-0.01 mm)含量分别减少了2.90和2.86个百分点。磨机利用效率提高了9.8%,球耗降低了10.52%。球径半理论公式因计算方便、效果显著,具有很好的应用及推广价值。This paper introduces a method of increasing grinding quality and efficiency, reducing ball consumption by changing ball diameter and proportion within ball mill. The ball diameter and proportion of addition was calculated by ball diameter semi-theory formula on the basis of the ore-bearing rock mechanics properties and the grinding conditions of Dongguashan copper mine, it is m （Ф60） ： m （Ф40） = 45 ： 55. The results of industrial experiment indicate that, the grinding fineness （ -0. 074 mm） and middle dressing size fraction（0.15 ＋0.01 mm） contents increased 7.60 and 5.76 percentage points respectively, the unqualified coarse fraction （ ＋ 0. 15 mm） contents and the over-grinding fraction （ -0.01 mm） reduced 2.9 and 2.86 percentage points respectively, The mill utilization efficiency raised 9.8% , ball consumption reduced 10.52% after using new ball diameter and proportion of addition. The ball diameter semi-theory formula has advantages of easy in computation and effective in improving ball mill grinding performance, so it has broad application prospects and value for popularization.

关 键 词：球径半理论公式 提质增效 节能降耗 磨矿 

分 类 号：TD921.4[矿业工程—选矿]