氧化铜矿浸出前高梯度磁选抛尾试验研究  

Application of High Gradient Magnetic Separator for Tailings Discarding before Leaching of Weathered Copper Oxide Ore

作　　者：潘昊旻 谢建平[1] 武海燕[1] 刘新星[1] 

机构地区：[1]中南大学资源加工与生物工程学院,湖南长沙410083

出　　处：《矿冶工程》2016年第1期33-35,40,共4页Mining and Metallurgical Engineering

基　　金：国家重点基础研究发展计划项目("973计划")(2010CB630901);国家自然科学基金项目(50774102)

摘　　要：为解决非洲某风化氧化铜矿目前直接采用加温搅拌浸出能耗高的问题,对该氧化铜矿的性质进行了综合分析,根据其磁性差异,采用高梯度湿式强磁选机进行抛尾研究。试验结果表明,在矿浆浓度30%～40%、磁场强度1.65 T条件下,采用一粗两扫磁选流程,对该铜矿细粒级有较好的富集作用,富集产率73%,铜回收率96%,不仅提高了搅拌浸出处理能力、降低了能耗、节约了成本,同时保证了铜金属的回收率。The property of a weathered copper oxide ore from Africa was comprehensively analyzed to clarify the problem of high energy consumption by using heating agitation-leaching method. High-gradient wet magnetic separator was introduced for tailings discarding according to the difference in magnetic property. The results show that, with pulp density of 30%- 40%, magnetic field intensity of 1.65 T, fine fraction of this copper ore can be effectively enriched adopting a magnetic separation flowsheet comprising one stage of roughing and two stages of scavenging, with a process yield and recovery of 73% and 96%, respectively. This optimized flowsheet can not only ensure the copper recovery, but also enhance the capacity of agitation leaching and reduce the energy consumption and processing cost.

关 键 词：氧化铜矿 强磁选 抛尾 高梯度磁选机 

分 类 号：TD924[矿业工程—选矿]