... to the separating process requirements, a few plants heat the ore. Chrome beneficiation plant: (1) Crushing, screening, grinding, grading and washing; ... also need for the separation middlings. The main equipments of Chrome beneficiation are: crusher, ball mill, circle vibrating screen, spiral ... separator concentrating machine, etc. http://www.pe750.com/Application/Chrome-Ore-Beneficiation-Plant.html