水力浮选机对Mirador浮选尾矿中粗颗粒铜矿的预富集试验  

Pre-enrichment Test of Coarse Particles of Copper Ore in Flotation Tailings Using Hydraulic Flotation Machine

作　　者：代献仁 DAI Xianren(China Railway Construction Copper Crown Investment Co.,Ltd.)

机构地区：[1]中铁建铜冠投资有限公司,安徽省铜陵市244000

出　　处：《现代矿业》2024年第6期155-158,共4页Modern Mining

摘　　要：为了提高米拉多(Mirador)铜矿的总铜回收率,针对现场粗选尾矿中+75μm粒级铜品位较高、铜损失率大的问题,采用新型Hydrofloat水力浮选机试验,考察了水力浮选机充气量、上升水流量、捕收剂丁基黄药用量和起泡剂F-501用量等因素对粗选尾矿预富集效果的影响。结果表明:在充气量为0.85 m^(3)/min,上升水流量为5 L/min,丁基黄药用量为20 g/t,F-501用量为20 g/t的情况下进行浮选,可获得铜品位0.30%、回收率86.7%的粗精矿。试验结果可以为现场流程改造提供参考。In order to improve the total copper recovery rate of Mirador copper mine,aiming at the problems of high copper grade and large copper loss rate in the+75μm fraction of roughing tailings,a new Hydrofloat hydraulic flotation machine was used to investigate the effects of aeration rate of hydraulic flota⁃tion machine,rising water flow rate,collector butyl xanthate dosage and foaming agent F-501 dosage on the pre-enrichment effect of roughing tailings.The results show that flotation experiment carried out when aera⁃tion rate is 0.85 m^(3)/min,rising water flow rate is 5 L/min,butyl xanthate dosage is 20 g/t,and F-501 dos⁃age is 20 g/t,the rough concentrate with copper grade of 0.30%and recovery rate of 86.7%can be ob⁃tained,which can provide reference for on-site process transformation.

关 键 词：粗选尾矿 水力浮选机 粗颗粒浮选 

分 类 号：TD926.4[矿业工程—选矿] TD923