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矿冶:2022,31(4):-
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某铜冶炼渣选矿厂流程改造研究和实践
(中条山有色金属集团有限公司)
Research and practice on process reformation of a slag copper Concentrator
fengbin1, WANG Zitao2, yangliping1, yan guo hui3
(1.Zhongtiaoshan Non-ferrous Metals Group Co. LTD;2.Zhongtiaoshan Non-ferrous Metals Group Co,Ltd,Yuan Qu;3.Zhongtiaoshan Non-ferrous Metals Group Co. LTD.)
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投稿时间:2021-09-28    修订日期:2021-10-26
中文摘要: 针对山西某铜冶炼渣选矿厂尾矿品位偏高的问题,利用MLA分析、粒级筛析的技术手段,发现主要原因为中矿粗粒级贫连生体得不到较好回收。依据分析结果和生产实践开展了工艺流程改进,将中矿处理方式由“顺序返回”改为“浓缩后返回二段磨矿”。粗粒级贫连生体得到了有效的再磨再选,原矿品位3.88%的条件下,精矿品位完成21.24%、尾矿品位由0.279%降低至0.229%。流程改进后,有效降低了浮选中矿贫连生体含量,提高了铜矿物单体解离度,具有参考意义。
Abstract:In view of the problem of high grade of tailings in a copper smelting slag concentrator in Shanxi Province,MLA analysis and particle size sieve analysis were used to find that the main reason is that the poor intergrowth of coarse middling ore can not be recovered well. Based on the analysis results and production practice,the technological process is improved,and middling ore treatment method is changed from “sequential return” to “after concentration,return to secondary grinding”. Coarse-grained lean intergrowth has been effectively reground and reselected,under the condition of 3.88% raw ore grade,concentrate grade is 21.24% and tailings grade is reduced from 0.279% to 0.229%. The improved process can effectively reduce the content of lean and intergrowth in flotation and improve the dissociation degree of copper minerals,has reference significance.
文章编号:     中图分类号:TD952    文献标志码:
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冯 斌,王子涛,杨利平,闫国辉.某铜冶炼渣选矿厂流程改造研究和实践[J].矿冶,2022,31(4):.

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