A Technical and Economic Comparison of Ball Mill Limestone Comminution ...
The vertical roller mill (VRM) which has gained wide acceptance in the cement industry and is used for grinding raw materials (mainly limestone), is a promising alternative. The VRM dries, grinds, and classifies ores and minerals within a single unit. ... with a top size of 19 mm to a 85% and 95% passing 45 µm product. A significant power ...