Journal of the Korean Society of Mineral and Energy Resources Engineers ISSN:2288-0291(Print) 2288-2790(Online) 한국자원공학회지

Vibration mill is widely used for the grinding of inorganic materials because of little contamination and rapid reduction in particle size. In this study, effects of sample charge, ball charge, grinding time, vibration width as well as ball size on grinding characteristics of calcite by vibration mill is investigated. The results of XRF and XRD showed that the raw ore with 0.28%SiO2, 0.11%Al2O3, 0.06%Fe2O3, 54.89%CaO was mainly composed of calcite. According to grinding experiment results, optimum condition for grinding of calcite was obtained at sample charge of 250g, ball charge of 60% in volume, vibration width of 9㎜. When the calcite was ground at the optimum condition for 10 minutes, the average particle size was 13.15㎛.