摘要
某铜硫矿选矿厂为提高铜矿物单体解离度,在原生产工艺中增加了铜粗精矿再磨工艺,但因再磨工艺的各项参数不佳,铜回收指标未达到预期目标.针对铜粗精矿再磨工艺存在的问题,对旋流器给矿压力、给矿浓度、立磨机装球量等工艺参数进行了优化.与优化前相比,铜粗精矿再磨工艺的磨矿技术效率提高14.47%,旋流器溢流与铜粗精矿中合格粒级铜金属占有率的差值提高1.57%.对铜品位0.70%的原矿,铜精矿Cu品位和回收率分别提高1.40%,2.51%.
For a copper-sulfur beneficiation plant,regrinding process of copper rough concentrate was added to raise the liberation degree of copper minerals,but the operating parameters weren＇t optimized and the copper production indexes didn＇t reach the goal.Thus,operating parameters in regrinding process were optimized in the research,such as feeding pressure and feeding density of hydrocyclone,ball mount and regrinding density of vertical mill.Compared with the indexes before optimization,the grinding technical efficiency increased by 14.47%,the copper distribution rate difference of the qualified particle between hydrocyclone overflow and copper rough concentrate increased by 1.57%.While the raw ore assayed0.70% Cu on average,the grade of copper concentrate and its copper recovery increased by 1.40 and 2.51 percentage points respectively.
作者
程建农
付广钦
周晓彤
邓丽红
关通
CHENG Jiannong;FU Guangqin;ZHOU Xiaotong;DENG Lihong;GUAN Tong(Guangdong Province Dabaoshan Mining Co.,Ltd,Shaoguan 512127,China;Guangdong Institute of Resources Coraprehensive Utilization,State Key Laboratory of Rare Metals Separation and Comprehensive Utilization,Guangdong Provincial Key Laboratory of Development and Comprehensive Utilization of Mineral Resource,Guangzhou 510650,China)
出处
《材料研究与应用》
CAS
2018年第2期129-133,共5页
Materials Research and Application
基金
广东省省级科技计划项目(2015B090901057
2017B030314046
2017A070701020)
广东省科学院专项(2017GDASCX-0109)
关键词
铜硫矿
铜粗精矿
再磨工艺
alloy GH4169
annular tube
finite element
thermal expanding
