山西某铜冶炼渣选矿优化试验研究  

Experiment Study on Optimization of BeneficiationProcess of Copper Slag in Shanxi

作　　者：闫国辉 何荣权[1] 郭谨铭 YAN Guohui;HE Rongquan;GUO Jinming(China ENFI Engineering Corporation,Beijing 100038,China)

机构地区：[1]中国恩菲工程技术有限公司,北京100038

出　　处：《绿色矿冶》2025年第1期77-81,共5页Sustainable Mining and Metallurgy

摘　　要：山西某富氧底吹炼铜熔炼渣含铜量为4.19%,为更好的回收熔炼渣中铜金属,在进行一次粗选试验,确定最佳磨矿细度和药剂制度的条件下,开展了常规流程和优化流程的对比试验研究。试验结果表明,最终磨矿细度为-0.045 mm占85%,快速浮选药剂制度为Z-200和丁基黄药各200 g/t,松醇油50 g/t。优化前的常规流程为快速浮选尾矿进入二段磨矿后进行二段浮选,包括一次粗选、三次扫选,每次扫选精矿顺序返回上次作业。优化工艺流程为快速浮选尾矿进入二段磨矿后进行二段浮选,包括一次粗选、两次精选、二次扫选,精选一尾矿和一次扫选尾矿合并为中矿返回中矿再磨,二次精选、二次扫选顺序返回上次作业。在一段磨矿细度为-0.074 mm占60%,二段磨矿细度-0.045 mm占85%条件下,优化后工艺流程可获得铜精矿品位33.02%,回收率94.32%的指标。The copper content of copper smelting slag in an oxygen-enriched bottom blowing copper smelting slag in Shanxi is 4.19%.In order to better recover the copper metal in the smelting slag,an roughing test was carried out to determine the optimal grinding fineness and reagent system.Under the conditions,a comparative test study of the conventional process and the optimized process was carried out.The experimental results show that the final grinding fineness is-0.045 mm accounting for 85%,and the rapid flotation reagent system is Z-200 and butyl xanthate each 200 g/t,pine oil 50 g/t.The conventional process before optimization is to carry out two-stage flotation after the rapid flotation tailings enter the two-stage grinding,including one roughing,three scavengings,and the scavenging concentrate is returned to the previous operation in sequence.The optimized process flow is that the fast flotation tailings enter the second-stage grinding and then carry out the second-stage flotation,including one roughing,two cleanings and two scavengings,the first tailings and the first scavenging tailings are combined into the middle ore and returned to the middle ore for regrinding,the second cleaning and the second scavenging order are returned to the last operation.Under the condition that the first-stage grinding fineness is-0.074 mm accounting for 60%and the second-stage grinding fineness is-0.045 mm accounting for 85%,the optimized process can obtain the index of copper concentrate grade of 33.02%and the recovery rate of 94.32%.

关 键 词：铜渣 浮选 药剂制度 磨矿细度 

分 类 号：TD923[矿业工程—选矿] X758[环境科学与工程—环境工程]