贵州铜仁地区某低品位碳酸锰矿高梯度磁选试验研究  

Experimental Research on High Gradient Magnetic Separation of Low⁃Grade Manganese Carbonate Ore in Tongren of Guizhou

作　　者：李帅[1] 唐云[1,2] 吴波 朴海善 聂光华 杨勇[1,2] 邓政斌 LI Shuai;TANG Yun;WU Bo;PIAO Haishan;NIE Guanghua;YANG Yong;DENG Zhengbin(Mining College,Guizhou University,Guiyang 550025,Guizhou,China;Guizhou Key Laboratory of Comprehensive Utilization of Non-Metallic Mineral Resources,Guiyang 550025,Guizhou,China)

机构地区：[1]贵州大学矿业学院,贵州贵阳550025 [2]贵州省非金属矿产资源综合利用重点试验室,贵州贵阳550025

出　　处：《矿冶工程》2023年第5期66-69,共4页Mining and Metallurgical Engineering

基　　金：贵州省省级科技计划(黔科合支撑[2022]一般047);铜仁市科技计划(铜市科研[2021]14号);贵州大学实验室开放项目(SYSKF2022-068)。

摘　　要：贵州铜仁地区某低品位碳酸锰矿矿物组成复杂,黏土矿物伊利石含量较高(19.30%),为了更好地提高该类型锰矿资源的选矿指标,对其开展了磁选试验研究。结果表明,预先脱泥后通过球磨机磨矿,在磨矿细度-75μm粒级占69.62%条件下,采用一次粗选、两次扫选磁选流程,最终可获得产率52.81%、锰品位和回收率分别为19.39%和83.66%的碳酸锰精矿。试验结果对实现铜仁地区电解锰渣源头减量排放具有重要意义。A low⁃grade manganese carbonate ore in Tongren of Guizhou Province has complicated mineral compositions,with a higher content of clay mineral illite(19.30%).In order to improve the mineral dressing index of this type of manganese ore resources,magnetic separation experiments was performed for it by using a high gradient magnetic separator.In the experiment,the mineral after pre⁃desliming was ground by a ball mill to a grinding fineness of-75μm 69.62%.Then,it was subjected to a magnetic separation process consisting of one roughing and two scavenging,resulting in the final manganese carbonate concentrate grading 19.39%Mn at 83.66%recovery,with yield of 52.81%.The experiment results are of great significance for reducing the discharge of electrolytic manganese slag in Tongren.

关 键 词：碳酸锰矿 高梯度磁选 矿泥 预先脱泥 锰精矿 

分 类 号：TD924[矿业工程—选矿]