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目前在矿石重选中,处理量大的重选设备得到广泛应用,其中包括螺旋选矿机和密集螺旋选矿机,其处理能力分别为30t/h 和60～75t/h。这种设备可用于矿石预选,完全可以胜过广泛应用的摇床。螺旋选矿机与摇床的顺序联合作业最符合重选的原理,依照此原理,前一作业的产品应使用形式和处理粒度不同的设备进行精选。但是,在细粒级物料选矿时,螺旋选矿机的指标较低。例如,各种矿石的—0.071+0.044mm
At present, in the ore re-election, handling heavy re-election equipment has been widely used, including spiral concentrator and intensive spiral concentrator, the processing capacity of 30t / h and 60 ~ 75t / h. This equipment can be used for ore pre-selection, can be better than the widely used shaker. The order of the spiral concentrator and the shaker is most in line with the principle of re-selection. In accordance with this principle, the product of the previous operation should be selected using the equipment of different forms and sizes. However, when beneficiating the fine-grained material, the index of the spiral concentrator is lower. For example, -0.071 + 0.044 mm for various ores