不同磨矿方式对浮选尾矿回收的试验研究  

Experimental Study on Recycling Flotation Tailings with Different Ore Grinding Modes

作　　者：陈宏超 贺旭然 邓建林 董军民 赵建强 常文 杨宇超 Chen Hongchao;He Xuran;Deng Jianlin;Dong Junmin;Zhao Jianqiang;Chang Wen;Yang Yuchao(Baoshan Mining Co.of Baotou Iron&Steel(Group)Co.,Ltd.,Baotou 014010,Inner Mongolia Autonomous Region,China;School of Mining and Coal,Inner Mongolia University of Science and Technology,Baotou 014010,Inner Mongolia Autonomous Region,China;Inner Mongolia Key Laboratory of Mining Engineering,Baotou 014010,Inner Mongolia Autonomous Region,China;Inner Mongolia Research Center for Engineering Technology of Safe Coal Mining and Utilization,Baotou 014010,Inner Mongolia Autonomous Region,China;Inner Mongolia Collaborative Innovation Center for Green Mining and Green Utilization of Coal,Baotou 014010,Inner Mongolia Autonomous Region,China)

机构地区：[1]包钢(集团)公司宝山矿业公司,内蒙古包头014010 [2]内蒙古科技大学矿业与煤炭学院,内蒙古包头014010 [3]内蒙古自治区矿业工程重点实验室,内蒙古包头014010 [4]内蒙古自治区煤炭安全开采与利用工程技术研究中心,内蒙古包头014010 [5]内蒙古煤炭绿色开采与绿色利用协同创新中心,内蒙古包头014010

出　　处：《包钢科技》2025年第2期10-13,共4页Science & Technology of Baotou Steel

摘　　要：在磨矿、弱磁-强磁-浮选复杂选铁流程中,为了改变浮选尾矿铁品位较高、铁金属量损耗大的选铁工艺流程现状,对浮选尾矿采用磨矿-磁选再回收工艺,采取不同磨矿(球磨、艾砂磨)方式、不同粒度浮选尾矿进行单一变量的磁选回收对比试验。浮选尾矿经艾砂磨机磨矿后,随着细粒级矿物占比的提高,磁选精矿产率由76.73%下降至48.78%,品位由38.1%上升至61.15%,回收率由86.20%降低至78.29%。浮选尾矿经球磨机磨矿后,在相同磁选条件下,磁选铁精矿产率由78.05%下降至56.63%,品位由38.10%上升至55.78%,回收率由92.80%降低至82.92%。In order to change the current situations that iron grade of flotation tailings is higher and loss of ferrous metal is great in the complex process of iron separation of ore grinding,weak magnetic separation-high intensity magnetic separation-flotation,the recycling process of ore grinding-magnetic separation is adopted for flotation tailings.The contrast test for recovery of magnetic separation with single variable is carried out with different ore grinding modes(ball mill and attrition mill)and flotation tailings of different granularities.With the increase of proportion of fine minerals,the yield of magnetic concentrate is decreased from 76.73%to 48.78%,grade is increased from 38.1%to 61.15%and recovery rate is decreased from 86.20%to 78.29%after grinding flotation tailings by attrition mill.The yield of magnetic iron concentrate is decreased from 78.05%to 56.63%,grade is increased from 38.10%to 55.78%and recovery rate is decreased from 92.80%to 82.92%after grinding flotation tailings by ball mill under the same magnetic separation conditions.

关 键 词：球磨 艾砂磨 磁选精矿 

分 类 号：TD951[矿业工程—选矿]