Choose don't over a long period of time, high, but the concentrate recovery from the eduction is close to ore mouth, magnetic double function poor, so concentrate grade is relatively low.
选别时间较长,回收率较高,而精矿排出端离给矿口较近,磁翻作用差,所以精矿品位较低。
2
This paper introduced emphatically to mining method for the ore-body of gentle dip and medium thickness under the condition of medium or poor stableness of country rocks in upper wall.
本文着重介绍缓倾斜中厚,上盘围岩中稳到稳固性较差条件下的矿体的采矿方法改进实践过程。
3
Rutile resource is rich in our country, but rutile ore grade is low and the product is poor competitive because of its high production cost.