Vertical roller millWikipedia

Vertical roller mill is a type of grinder used to grind materials into extremely fine powder for use in mineral dressing processes, paints, pyrotechnics, cements and ceramics.Material grinding process motor through reducer rotating drive disc, the material falls from the mill under the central entrance and exit, under the action

Energy-Efficient Technologies in Cement Grinding |…

Polysius® vertical roller mill (drying grinding roller mill) . Barmac-type crushers found application as a pre-grinder in cement grinding circuits