Is media shape important for grinding performance in stirred mills?

► Media flow and energy use in a tower mill depends on media shape from DEM simulations. ► Behaviour of blocky media is significantly different from that of spherical media. ► Blocky media - poor media and slurry transport; more dilation in grind zone; reduced active bed volume. ► Lower power draw for blocky media - high liner wear rate and reduced media collisional power.