基于水力旋流器分选的某银精矿双产品方案研究  

Processing Scheme of Separating a Silver Concentrate into Two Products by Hydrocyclone

作　　者：王宇思 李茂林[1,2] 崔瑞[1] 孙景敏[3] 张硕 杨哲辉 赵晗 WANG Yusi;LI Maolin;CUI Rui;SUN Jingmin;ZHANG Shuo;YANG Zhehui;ZHAO Han(College of Resources and Environmental Engineering,Wuhan University of Science and Technology,Wuhan 430081,Hubei,China;Changsha Research Institute of Mining and Metallurgy Co.,Ltd.,Changsha 410012,Hunan,China;Henan Province Rock and Mineral Testing Center,Zhengzhou 450014,Henan,China)

机构地区：[1]武汉科技大学资源与环境工程学院,湖北武汉430081 [2]长沙矿冶研究院有限责任公司,湖南长沙410012 [3]河南省岩石矿物测试中心,河南郑州450014

出　　处：《矿冶工程》2025年第1期65-69,共5页Mining and Metallurgical Engineering

摘　　要：河南某银精矿的伴生金属铅品位平均约7%,未达到计价标准。为提高银精矿综合价值,对银精矿产品开展了水力旋流器分级试验,考察了水力旋流器锥角、沉砂口直径、角锥比等参数对银精矿分级富集的影响。结果表明:采用100型水力旋流器,在锥角60°、给矿压力0.2MPa、给矿浓度(质量分数)13.89%、溢流管直径22mm、沉砂口直径12mm条件下,可从银精矿中分离出产率49.25%、银品位6316.29g/t、银金属回收率79.06%、铅品位12.39%、铅金属回收率79.45%的高铅银精矿和银品位1623.36g/t的低铅银精矿。高、低铅银精矿双产品方案优于单一银精矿方案,银精矿产品经济价值可提升687.96元/t。A kind of silver concentrate in Henan Province has the associated lead therein with an average grade around 7%,lower than the grade for pricing.A classification test was conducted with a hydrocyclone for the silver concentrate,and effects of parameters,including cone angle,underflow orifice diameter,and angle-cone ratio,on the classification and concentration of silver concentrate were explored.It is found that by adopting a 100 model hydrocyclone with cone angle of 60°,feed in a mass fraction of 13.89%to be fed at the pressure of 0.2 MPa,overflow pipe of 22 mm in diameter,and the underflow orifice of 12 mm in diameter,a high-lead silver concentrate grading 6316.29 g/t Ag and 12.39%Pb can be obtained at corresponding recoveries of 79.06%Ag and 79.45%Pb,with a yield of 49.25%;meanwhile,a low-lead silver concentrate with silver grade of 1623.36 g/t can be obtained.This processing technique can obtain both high-and low-lead silver concentrate at the same time,leading to the economic value of the silver concentrate improved by 687.96 Yuan per ton.

关 键 词：水力旋流器 银精矿 伴生金属 铅 综合回收 

分 类 号：TD922[矿业工程—选矿]