顽石作为磨矿介质在含金铜硫分离中的试验研究  

Experimental Study on the Separation of Gold-Copper Sulfide Ore by Using Pebble as Grinding Media

作　　者：倪帅男 吴彩斌[1,2] 叶景胜 杨杰 袁程方 NI Shuainan;WU Caibin;YE Jingsheng;YANG Jie;YUAN Chengfang(School of Resources and Environmental Engineering, Jiangxi University of Science and Technology, Ganzhou 341000, Jiangxi , China;Jiangxi Key Laboratory of Mining Engineering, Ganzhou 341000, Jiangxi, China)

机构地区：[1]江西理工大学资源与环境工程学院,江西赣州341000 [2]江西省矿业工程重点实验室,江西赣州341000

出　　处：《黄金科学技术》2018年第1期81-88,共8页Gold Science and Technology

基　　金：国家级大学生创新创业训练计划项目"顽石作为再磨介质取代钢球的磨矿行为试验研究"(编号:201510407002)资助

摘　　要：半自磨机排出的顽石硬度大、球形度高,具有磨矿介质特征。针对某铜硫金矿选矿厂分级机沉砂样,以顽石与钢球混合配比作为粗磨磨矿介质、全顽石作为粗精矿再磨介质,采用"铜硫混合浮选—粗精矿再磨—铜硫分离"工艺流程进行了浮选试验。在最佳条件试验的基础上进行闭路试验,最终可获得铜品位为18.45%、铜回收率为86.89%,金品位为16.68×10-6、金回收率为55.78%的铜精矿,高于工业生产实际指标。试验证实了顽石作为磨矿介质,在粗精矿细磨领域具有非常好的应用前景。The pebble discharged from SAG mill has a grinding media characteristic of big hardness and high spherical degree. A flotation process research of copper and sulfur mixed flotation-coarse concentrate grindingcopper sulfur separation had been carried out by using stone and steel ball as mixing coarse grinding media and the whole stone as re-grinding media when the flotation feed is the coarse spiral classifier in copper-sulfur gold mine.Closed-circuit tests were carried out on the basis of the best condition test.The results show that the final copper concentrate with copper grade of 18.45%, gold grade of 16.68× 10 -6, copper recovery of 86.89%, and gold recovery of 55.78% was otained, which is higher than the actual production index. It is confirmed that the pebble used as grinding media has a good prospect in fine grinding of rough concentrate.

关 键 词：半自磨顽石 磨矿介质 铜硫金矿 铜硫混浮 铜硫分离 

分 类 号：TD953[矿业工程—选矿]