江西某钨矿钨细泥选矿工艺优化及应用研究  

Beneficiation Technology Optimiztion and Appliction for the Tungsten Slime in a Tungsten Mine

作　　者：袁长亮 YUAN Changliang(Jiangxi Dajishan Tungsten Industry Co.,Ltd.,Quannan 341800,Jiangxi,China)

机构地区：[1]江西大吉山钨业有限公司,江西全南341800

出　　处：《中国钨业》2020年第4期33-37,共5页China Tungsten Industry

摘　　要：针对江西某钨矿原次生细泥系统浓密机溢流跑损严重、系统回收率低的问题,研究采用了增设高频振动筛对入选细泥进行脱粗除杂、在浓密机入矿口投放絮凝剂,改善沉降效果,使用高效浓密斗控制现用离心机最佳选别浓度30%左右,取消锅炉燃煤加温煮矿,采用白钨常温浮选等工艺改进措施对原细泥回收工艺进行了优化。工艺优化后,细泥回收系统离心机尾矿较优化前降低了0.021%,硫化矿尾矿(钨含量)降低了0.013%,黑白钨混合浮选尾矿降低了0.012%,黑钨精选摇床尾矿降低了0.014%,而且系统(钨)选矿回收率达到了47.03%,较优化前提高了5.12%。In view of the serious overflow loss of thickener and low recovery rate in the primary and secondary fine mud of a tungsten mine,we optimzed the original recovery process by adding high-frequency vibrating screen to remove coarse and impurities and putting flocculants at the inlet of thickener for the improvement of the settlement effect.High-efficiency thickener was applied to control the optimum concentration of current centrifuge by about 30%.Other measures included:canceling coal-fired heating and boiling in boiler,adopting scheelite flotation at normal temperature.After process optimization,centrifuge tailings,sulfide tailings(tungsten content),black and white tungsten mixed flotation tailings and wolframite cleaning shaker tailings are reduced by 0.021%,0.013%,0.014%.The recovery rate of tungsten beneficiation reached 47.03%,which was 5.12%higher than before optimization.

关 键 词：脱粗 絮凝剂 给矿浓度 白钨常温浮选 选矿回收率 

分 类 号：TD92[矿业工程—选矿]