Abstract
Abstract:Discrete element method (DEM) modelling has proven over many years to be a powerful tool for
studying particulate systems within the mineral processing industry. DEM simulations were conducted to
investigate the power draw, load behaviour and impact energy profile of an experimental ball mill under
different milling conditions. The variables considered were mill rotational speed (% critical speed), ball
size, and lifter face angle. The DEM simulation results indicated that the grinding efficiency would be
enhanced by use of 80% critical speed, 30 mm ball diameter, and 45° lifter face angle. These findings can
be useful in guiding actual ball milling tests involving an ore sample.