#### Comminution processes Basics and application to energy

distribution by ball motion tracking parameters mill grinding balls k = 3 ω S = s 1 d GB = 10 mm product steel φ P = x 50 P ≈60 µm φ GB = limestone marble no powder Al 2O 3 Planetary ball mill under different conditions. Effects of Ball Size and Particle Size on the Rate of Wet Particle size distribution and specific surface area of powders were examined as a function of grinding time Small zirconia balls in ball milling were effective to grind the powder to submicronmeter In order to explain these experimental results on the milling rate an equation for expressing the milling rate was proposed The new equation is characterized by two parameters ball size and . AMIT 135 Lesson 3 Particle Size Distribution Mining The RR model is typically satisfactory for coarse distributions The GGS model is generally considered more precise for fine particle size distributions It may be needed to perform model fits over more than 2 particle size rangers Gates Gaudin Schumann Model [image 135 3 1 ] The GGS model predicts the cumulative percent passing distribution Y= cumulative percent passing x= particle size . Improving particle size distribution and flow properties · Chocolate mass is produced by roller refining and conching or alternatively by ball milling Grinding can generate varying particle size distributions PSD which again influence flow parameters The latter are very important for downstream processing as well as mouthfeel and consumer acceptance of the final product The objective of the work was to influence and control PSD and flow