采用粗磨抛尾—粗精矿筛分选铁新工艺，使攀枝花选矿厂球磨机生产能力首次达到１０７ｔ／ｈ的设计指标，与原有流程相比，处理量提高２０％。新工艺流程提高球磨机台时处理量、铁精矿品位和回收率等选矿指标的主要原因，在于大幅度降低了所需要的入选磨矿粒度和新生－００７４ｍｍ粒级含量，尽早丢弃粗粒尾矿；大幅度了提高分级效率；减少了铁矿物过磨，从而降低了微细粒铁矿物在尾矿中的损失。 Using coarse grinding and tailing - the new process of coarse ore screening and iron separation, the production capacity of Panzhihua Concentrator mill reaches the design index of 107t / h for the first time. Compared with the original process, the treatment capacity is increased by 20%. New process to improve the mill ball mill processing capacity, grade and recovery of iron ore beneficiation indicators, the main reason is that the required significantly reduced the selected grinding particle size and the new -0 -074 mm particle size content, early disposal of coarse particles Tailings; Significantly improve the classification efficiency; Reduce the iron ore over grinding, thus reducing the micro-fine iron ore in the tailings loss.