一、有关情况 1.干燥物料及干燥过程合格矿石经选别,分别得出手选块钨精矿,跳汰加工精矿和浮选精矿。手选精矿需破碎后进行干燥,后二种则直接进入干燥作业(均系中间产品干燥)。干燥后的物料还需经磁选除锡和白钨,部分精矿尚需经过焙烧除铜 First, the relevant circumstances 1. Drying materials and drying process Qualified ore by the election, respectively, were hand-selected pieces of tungsten concentrate, jig processing and concentrate concentrate. Hand-selected concentrate to be broken after drying, the latter two are directly into the drying operation (all intermediate products dry). After drying the material also need magnetic separation of tin and scheelite, some concentrate still need to go through roasting copper