某铜冶炼炉渣缓冷时间对浮选性能的影响  

Effect of Time of Slag Gradual Cooling on Flotation Performance in a Certain Copper Smelter

作　　者：吕旭龙 衷水平[2] 印万忠[1] 迟晓鹏[1] 陈杭[2] 朱茂兰[3] LV Xulong;ZHONG Shuiping;YIN Wanzhong;CHI Xiaopeng;CHEN Hang;ZHU Maolan(College of Zijin Mining, Fuzhou University, Fuzhou, Fujian 350108, China;Zijin Mining Group Co., Ltd., Shanghang,Fujian 364200, China;Longyan University, Longyan, Fujian 364000, China)

机构地区：[1]福州大学紫金矿业学院,福建福州350108 [2]紫金矿业集团股份有限公司,福建上杭364200 [3]龙岩学院,福建龙岩364000

出　　处：《有色冶金设计与研究》2017年第6期1-7,共7页Nonferrous Metals Engineering & Research

基　　金：福建省高校产学合作项目(编号:2017H6010);福建省自然科学基金项目(编号:2016J01252);国家自然科学基金项目(编号:51704153);福建教育厅项目(编号JA14042)

摘　　要：某铜冶炼厂采用渣包保温缓冷+浮选法的联合工艺从炉渣中回收金属铜。缓冷渣包的高效利用对该工艺的成本有着重要的意义。本试验采用该冶炼厂的浮选工艺流程,针对渣包不同缓冷时间下的炉渣进行单独浮选试验,研究渣包不同缓冷时间对铜浮选的影响及其原因。结果表明:当渣包缓冷时间为10 h时,炉渣浮选铜回收率为95.71%,尾矿品位为0.28%,获得了较好的浮选指标。通过显微分析和尾矿粒度分析,不同渣包缓冷时间下的炉渣含铜物质嵌布粒度不同,缓冷时间越短,较细颗粒含量越多,细颗粒不能有效的单体解离是影响浮选指标的关键因素。A certain copper smelter adopts a combination process of slag ladle heat insulation for gradual cooling and flotation method to recover copper from furnace slag.The test uses the flotation process flow of this smelter,the independent flotation tests are carried out for furnace slag under the different gradual cooling times of ladle,to research the effect and causes of the different gradual cooling times on copper flotation.The results show that the recovery of copper from slag flotation is95.71%and the grade of tailings is0.28%when ladle gradual cooling time is10h,hence the better flotation indexes are obtained.Through the microscopic analysis and analysis of different sizes of tailings,the disseminated particle sizes of the slag containing copper are different in the different ladle gradual cooling times,the shorter the gradual cooling time is,the more contents of fine particle are.Fine particles cannot be effectively liberated,which is the key factor of affecting flotation index.

关 键 词：炉渣 缓冷时间 浮选 回收率 

分 类 号：TD952[矿业工程—选矿]