河北某萤石矿重-浮联合选矿试验研究  

Study on Beneficiation of Fluorite Ore by Gravity Separation-Flotation Combined Process in Hebei

作　　者：骆洪振 张凛 徐健 杨含蓄 赛明雨 Luo Hongzhen;Zhang Lin;Xu Jian;Yang Hanxu;Sai Mingyu(Sinosteel Maanshan General Institute of Mining Research Co.,Ltd.,Maanshan,Anhui 243000;State Key Laboratory of Safety and Healthfor Metal Mines,Maanshan,Anhui 243000)

机构地区：[1]中钢集团马鞍山矿山研究总院股份有限公司,安徽马鞍山243000 [2]金属矿山安全与健康国家重点实验室,安徽马鞍山243000

出　　处：《非金属矿》2024年第3期58-62,共5页Non-Metallic Mines

摘　　要：为实现河北某萤石矿的清洁高效利用,在矿石性质研究基础上,开展重-浮联合选矿试验研究。结果表明,采用洗矿筛分-块矿重介质浅槽分选-粉矿重介质旋流器分选-中矿磨矿浮选工艺可获得较好的选别指标,块矿经重介质浅槽分选可获得CaF_(2)品位为81.63%、回收率为35.80%的块精矿,粉矿经重介质旋流器分选可获得CaF_(2)品位为92.61%、回收率为14.21%的粉精矿,中矿经磨矿浮选可获得CaF_(2)品位为96.50%以上的酸级精矿,其可浮性与原矿可浮性相近。研究结果对同类萤石矿资源的清洁高效利用具有一定的指导意义。In order to realize the clean and efficient utilization of a fluorspar mine in Hebei,based on the properties study of the ore,we carried out the experimental study of gravity separation-flotation joint beneficiation.The results show that under the process of raw ore washing and screeningheavy media shallow trough separation of lump ore-heavy media cyclone separation of powder ore-middllings flotation after milling,we can obtain better separation index.The lump ore can obtain the lump concentrate with 81.63%CaF_(2)grade and 35.80%recovery rate by heavy media shallow trough separation,the powder ore can obtain powder concentrate with 92.61%CaF_(2)grade and 14.21%recovery rate by heavy media cyclone separation,the middllings can obtain acid concentrate with grade more than 96.50%by flotation,and its floatability is similar to that of the raw ore.This study has certain guiding significance for the clean and efficient utilization of similar fluorite ore resources.

关 键 词：萤石 重介质旋流器 重介质浅槽 浮选 预选 

分 类 号：TD97[矿业工程—选矿]