Easily controlled air classifier consistently sizes limestone dust
When vibratory screens failed to efficiently handle a mineral company's limestone dust, switching to a centrifugal classifier provided consistent dust sizing.
Colorado Lien produces crushed limestone, gypsum, calcium feed supplements, and silica sand. The company's Fort Collins, Colo., plant mines limestone from a quarry and crushes the limestone to -2 inches using a 25-by-40-inch jaw crusher and a 45-inch cone crusher. Trucks haul the crushed limestone to the company's plant.