Particle motion and energy dissipation spectra in a planetary ball mill

The charge motion and energy dissipation in a planetary ball mill are investigated using the Discrete Element Method (DEM). In addition to simulations of the grinding media (balls) only, different fill levels of the ground material (fine particles) are considered to examine its effect on the mill charge dynamics. The energy dissipation spectra determined from the DEM simulations provide insights into the comminution processes that occur in the planetary mill, and how they are influenced by the fill level and size distribution of the fine particles