Gold Concentrator

Working principle

Centrifugal Concentrator use the principles of a centrifuge to enhance the gravitational force experienced by feed particles to effect separation based on particle density. The key component is cone shaped concentrate bowl. The concentrate bowl rotated at high speed by an electric motor and a pressurized water jacket encompassing the bowel. Feed material, usually from a ball mill discharge or hydrocyclone underflow bleed, is fed as a slurry toward the center of the bowl from above. The feed slurry contacts the base plate of the vessel and due to its rotation, is thrust outward. The outer extremites of the concentrate bowl house a series of ribs and between each pair of ribs is a groove. During operation the lighter materials flows upward over the grooves and heavy mineral particles become trapped within them. Pressurized water is injected through a series of tangential water inlets along the perimeter of each groove to maintain a fluidized bed of particles in which heavy mineral particles can be efficiently concentrated.