摘要
本文通过对金川硫化铜镍矿矿石性质的分析以及中矿单独再磨再选流程、两磨两选流程、两磨两选+中矿再磨流程应用前后指标的对比和流程分析,结合现场生产实际情况,分析其流程的特点、存在的问题,其分析结果认为,两磨两选工艺流程不论在总精矿镍品位还是在回收率指标上都优于中矿单独再磨再选流程。前者总精矿镍品位达到7.96%,比后者提高0.26%,镍回收率达到83.65%,比后者提高0.25%。两磨两选流程和两磨两选+中矿再磨流程对比后发现后者能使低精矿镍品位有较大幅度的提升,由实施前的3.95%提高到实施后的4.45%,同时总精矿镍品位由原来的8.061%提升到8.28%。
Based on the analysis of copper-nickel sulfide ore,the comparison of indexes before and after the application of middling separate regrinding and reseparation process,two grinding and two separation process,two grinding and two separation+middling regrinding process and the analysis of the process.Combined with the actual production situation on site,the paper analyzes the problems existing in the characteristics of the process.The analysis results show that,two grinding and two separation process in both the total nickel concentrate grade and recovery index were superior to the middling separate regrinding and reseparation process.The former general nickel concentrate grade of 7.96%,0.26%higher than that of the latter,nickel recovery rate reached 83.65%,0.25%higher than the latter.Two grinding and two separation process and two grinding and two separation+middling regrinding process shows that the latter can make low nickel concentrate grade is greatly ascend,rose from 3.95%before the implementation to 4.45%after implementation,at the same time the total nickel concentrate grade from 8.061%to 8.28%.
作者
张莉
王海玉
Zhang Li;Wang Haiyu(Concentrator of Jinchuan Group Co.,Ltd.,Jinchang,Gansu,China)
出处
《矿产综合利用》
CAS
北大核心
2022年第2期127-130,共4页
Multipurpose Utilization of Mineral Resources
关键词
硫化铜镍矿
选矿
中矿
再磨再选
Copper-nickel sulfide ore
Beneficiation
Middling
Regrinding and reconcentration
作者简介
张莉(1984-),女,工程师,主要从事铜银矿选矿技术研究;通信作者:王海玉(1984-),男,工程师,主要从事为选矿冶金设计。
