Principles of Extractive Metallurgy
Pb and Zn, raw earth metalsHammer mill f)Ball mill. Screening: Sieve analysis Finer particles are collected in lower boxes • Classification process: Due to different size, shape and densities, materials are classified in fluids/water. It depends upon following factors: particles fall more slowly in fluids than do larger ones (stokes law) 2. In cyclonic movement (hydrocyclone