微细粒级锡矿选矿试验研究  

Experimental study on beneficiation of a fine cassiterite

作　　者：黄翔 郑永兴[3] 王振兴 HUANG Xiang;ZHENG Yong-xing;WANG Zhen-xing(Guangdong Ubridge New Material Technology Co.Ltd.,Maoming 525000,Guangdong,China;Yunnan Continuing Education Information Consulting Co.Ltd.,Kunming 650221,China;State Key Laboratory of Complex Nonferrous Metal Resources Clean Utilization,K unming University of Science and Technology,Kunming 650093,China)

机构地区：[1]广东粤桥新材料科技有限公司,广东茂名525000 [2]云南继续教育信息咨询有限公司,昆明650221 [3]省部共建复杂有色金属资源清洁利用国家重点实验室,昆明理工大学,昆明650001

出　　处：《矿冶》2023年第1期51-59,共9页Mining And Metallurgy

基　　金：茂名市2021年省科技创新战略“大专项+任务清单”专项(2021S0005)。

摘　　要：云南某多金属选矿厂采用浮—重—浮选矿工艺流程进行铜、锌、锡的回收,铜锌浮选尾矿经脱硫、除铁处理后,通过Φ250旋流器进行分级,沉砂采用摇床回收粗颗粒锡石,溢流采用浮选回收细颗粒锡石,但是细粒浮选存在药剂用量大、浮选精矿品位低等问题,为解决这些问题,对生产现场Φ250旋流器溢流取代表性矿样进行试验研究,采用预先脱泥再浮选的方式,大大降低锡石浮选药剂用量,对浮选精矿采用新型复合力场式重力选矿设备——球面振旋选矿机进行精选,最终获得锡精矿含锡30.93%、回收率60.57%的良好试验指标。Copper ore, zinc ore and cassiterite were recovered by floatation-gravity separation-flotation process in a polymetallic concentrator in Yunnan province.After removing sulfur and iron from copper ore and zinc ore flotation tailings, they are graded by Φ250 cyclone.The coarse cassiterite of sand setting is recovered by concentration table and fine cassiterite is recovered by flotation in overflow.However, there are some problems in fine flotation, such as large dosage of reagent and low grade of flotation concentrate.In order to solve these problems, experimental study on representative ore samples that were taken from the production site by overflow of Φ250 cyclone.The method of pre-desliming and then flotation was adopted to greatly reduce the dosage of cassiterite flotation reagents.The flotation concentrate was selected by a new type of gravity beneficiation equipment of compound force field-The spherical-vibrating-rotary separator.Finally, a good test index of cassiterite concentrate containing 30.93% tin and recovery of 60.57% was obtained.

关 键 词：细粒锡石 浮选 脱泥 球面振旋选矿机 

分 类 号：TD952[矿业工程—选矿]