新田岭钨矿X射线预选抛废研究  

Application of X-Ray Sorting Technique in Pre-concentration and Gauge Discarding of Xintianling Tungsten Ore

作　　者：徐凤平 郭灵敏[2] 王晴红 缪亚兵 XU Feng-ping;GUO Ling-min;WANG Qing-hong;MIAO Ya-bing(Hunan Xintianling Tungsten Industry Co Ltd,Chenzhou 423022,Hunan,China;Changsha Research Institute of Mining and Metallurgy Co Ltd,Changsha 410012,Hunan,China)

机构地区：[1]湖南新田岭钨业有限公司,湖南郴州423022 [2]长沙矿冶研究院有限责任公司,湖南长沙410012

出　　处：《矿冶工程》2021年第4期64-67,共4页Mining and Metallurgical Engineering

摘　　要：针对新田岭钨矿-60+10 mm粒级钨矿石,采用X射线分选技术预选抛废,研究了X射线预选产品矿石性质,并对预抛精矿产品进行了现场工艺条件下适应性试验研究,结果表明,预选抛废可提高浮选粗精矿品位。对选厂破碎系统工艺和产能进行了考查,在X射线预选针对中碎-60+10 mm粒级产品(产率78%)的作业抛废率达30%条件下,通过提高破碎作业处理量至1305 t/d、中碎系统运转率由原来的29.36%提高至38.33%,可满足磨浮能力1000 t/d要求。X-ray sorting technology was introduced for gauge discarding in the processing of tungsten ore from Xintianling Mine.Thereafter,the ore properties of the sorted products were studied and an adaptability processing test was conducted for the pre-concentrated portion under on-site operation conditions.The results show that pre-concentration to discard the gauge can upgrade the roughing concentrate of flotation.Based on the evaluation of the crushing regime and concentrator capacity,it is found that when the discarding rate for-60+10 mm range product from medium crushing(yield 78%)attains 30%via X-ray sorting,the processing capacity of grinding-flotation flowsheet can meet the requirement of 1000 t/d by promoting the crushing capacity to 1305 t/d and increasing the operation rate of the medium crushing system from 29.36%to 38.33%.

关 键 词：X射线分选技术 抛废 白钨矿 预选 浮选 破碎 可行性 

分 类 号：TD951[矿业工程—选矿]