Effect of Intensive Abrasion Breakage on Secondary Ball Mills for Magnetite

In order to investigate the breakage behavior of feed in industrial secondary ball mills, characteristics fine magnetite were analyzed. Magnetite particle produces a bimodal size distribution that is consistent with typical abrasion. The mill can increase surface area by reducing diameter steel balls enhance Industrial application results show after abrasion for grinding was enhanced, circulating load grinding-classification system dropped 29.90% and specific energy decreased 39.14%. At same time, consumption also from 0.17 kg/t 0.13 kg/t, decrease up 20%. It should be noted reduction follow certain rules because if single collision lower than critical breaking particles, process will affected thus have counterproductive effects.