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根据王集矿石所做选矿试验的结果,对入选浓细度控制有以下要求: ①由于矿石的鲕粒结构和嵌布特性,入选细度-200目93％,粗选作业浓度23％左右(包括中矿返回),由于中矿返回量大,要求二段分级溢流浓度在26％左右。 ②微细粒级占有较大产率并有与原矿相近的品位(表1),不能丢失。 因此,设计考虑两段磨矿分别与螺旋
According to the results of mineral processing tests conducted by Wangji Ore, the following requirements for the control of the selected concentration are as follows: ① Because of the oolitic structure and embedding characteristics of ore, 93% of the fineness-200 mesh and about 23% of the roughing concentration are selected Including the return of Zhong Mine). Due to the large amount of return from the mine, the concentration of the second-stage staged overflow was required to be around 26%. ② fine-grained level occupy a larger yield and have similar grade with the ore (Table 1), can not be lost. Therefore, the design considers two segments of grinding and spiral respectively