赣南某石英大脉型钨锡矿重介质选矿试验研究  

Experimental Research by Heavy Medium Beneficiation for a Quartz Large-vein-type Tungsten-tin Ore in Southern Jiangxi

作　　者：王强强 李振飞 李平 沈新春 张婷 WANG Qiangqiang;LI Zhenfei;LI Ping;SHEN Xinchun;ZHANG Ting(Ganzhou Nonferrous Metallurgy Research Institute Co.,Ltd.,Ganzhou 341000,Jiangxi,China)

机构地区：[1]赣州有色冶金研究所有限公司,江西赣州341000

出　　处：《中国钨业》2022年第4期22-25,45,共5页China Tungsten Industry

摘　　要：对赣南某石英大脉型钨锡矿山WO_(3)、Sn品位分别为0.15%、0.16%的合格矿,采用无压三产品重介质旋流器进行重介质选矿试验研究,重点考察矿介比与介质密度对重介质选矿指标的影响。试验结果表明,在重介质旋流器压力为0.15 MPa,流量为88~94 m^(3)/h,矿介比为1∶16,介质密度为1.45 g/cm^(3)条件下,尾矿抛废率为63.67%,尾矿中WO_(3)、Sn回收率分别为6.07%、11.78%,试验指标良好。采用无压三产品重介质旋流器可在保证尾矿WO_(3)、Sn回收率较低的情况下实现预选抛废,减轻磨重系统负担,极大节约了尾矿库库容,为合理开发利用该类石英大脉型难选钨锡矿提供了技术支撑。The heavy medium beneficiation test for a qualified quartz large-vein tungsten and tin mine assaying 0.15%WO_(3) and 0.16%Sn in southern Jiangxi was carried out using a non-pressure three-product heavy medium separator.The influence of ore-medium ratio and medium concentration on the heavy medium beneficiation test indexes was mainly investigated.The test results show that under the conditions of heavy medium cyclone pressure is 0.15 MPa,flow rate is 88~94 m^(3)/h,ore-medium ratio is 1:16,medium concentration is 1.45 g/cm^(3),tailings throwing rate is 63.67%,the recoveries of WO_(3) and Sn in tailings is only 6.07%and 11.78%respectively,the test indicators is well.Can achieve a large number of pre-tailing while ensuring the recovery rate of WO_(3) and Sn of tailings by use of non-pressure three product heavy medium cyclone,At the same time can reduce the burden of grinding system,greatly save the capacity of tailings reservoir,and provide technical support for the development and utilization of this type of quartz large vein tungsten-tin ore.

关 键 词：石英脉型 钨锡矿 重介质选矿 尾矿抛废 

分 类 号：TD952[矿业工程—选矿]