矿产综合利用2025，Vol.46Issue(2)：178-183,6.DOI:10.3969/j.issn.1000-6532.2025.02.025
某硫化铅锌矿重介质分选白云石
Separation of Dolomite from a Lead-zinc Sulfide by Dense Medium
摘要
Abstract
A lead-zinc sulfide is a reworked SEDEX deposit,in which the main gangue mineral is dolomite.About 40%～50%yield of flotation tailing was need to be stockpiled in tailing pond.Due to the inability to expand tailings ponds or build new one,mine production was facing difficulties,so the strategy of full resource utilization was proposed.In this study,the-15+4 mm coarse-grained fraction of the grinding feed was subjected to a dense medium cyclone to separate dolomite.The dolomite product yield was 32.70%and contained 0.043%Pb and 0.16%Zn at the conditions that the specific gravity of the suspension was 2.1 and the pressure of the cyclone was 1.0 kg/cm2.The loss rate of lead and zinc was 1.46%and 1.60%respectively.The dolomite product met the dolomite of NBYS19A grade refractory material by chemical analysis.The dolomite product was separated from-15+4 mm particles through the dense medium cyclone,and its resource utilization had been realized,which can reduce 32.70%feed entering the grinding and floatation operation,and can reduce the cost of grinding and floatation.It is of great significance to promote the full resource development of the mine.关键词
硫化铅锌矿/白云石/热水喷流改造/重介质旋流器Key words
Lead-zinc sulfide ore/Dolomite/Reworked SEDEX deposit/Dense medium cyclone分类
矿山工程引用本文复制引用
饶金山,陈志强,胡红喜,刘超,邱显扬,管则皋..某硫化铅锌矿重介质分选白云石[J].矿产综合利用,2025,46(2):178-183,6.基金项目
广东省科学院发展专项资金项目(2021GDASYL-20210302004、2020GDASZH-20220101104) （2021GDASYL-20210302004、2020GDASZH-20220101104）
