某铅锌矿选铅尾矿絮凝沉降及溢流水回用于浮选评价试验研究  

Experimental Study on Flocculation Sedimentation of Lead Tailings from a Pb⁃Zn Mine and Evaluation of Flotation with Recirculated Overflow

作　　者：缪亚兵 薛珂 赵文坡 李文风[1] 方程 MIAO Yabing;XUE Ke;ZHAO Wenpo;LI Wenfeng;FANG Cheng(Changsha Research Institute of Mining and Metallurgy Co Ltd,Changsha 410012,Hunan,China)

机构地区：[1]长沙矿冶研究院有限责任公司,湖南长沙410012

出　　处：《矿冶工程》2023年第5期80-84,共5页Mining and Metallurgical Engineering

摘　　要：对某铅锌矿选铅尾矿开展絮凝沉降实验室试验研究,进行了絮凝剂选型、絮凝剂用量和给料浓度试验,并将筛选的絮凝剂以药剂添加的方式给入浮选系统进行铅锌硫浮选评价试验。结果表明,阴离子型PAM絮凝剂AX868沉降效果较好,添加絮凝剂后的浮选体系所得浮选指标与使用清水所得浮选指标相当,AX868用量20 g/t即可满足工业生产中直径36 m浓密机沉降要求。Experimental study on flocculation sedimentation was carried out in a laboratory for the lead processing tailings from a lead⁃zinc mine,and the flocculant type,flocculant dosage and feed concentration were all investigated.Then,the selected flocculant was applied into a lead⁃zinc⁃sulfur flotation.The results show that the anionic PAM flocculant AX868 presents a better sedimentation effect,and its addition into the flotation system leads to the obtained flotation indicators equivalent to those by using clear water.It is found that an addition of 20 g/t AX868 into the thickener with a diameter of 36 m can meet the sedimentation requirements in industrial production.

关 键 词：絮凝剂 铅锌矿 浮选 絮凝沉降 回水利用 

分 类 号：TD97[矿业工程—选矿]