Reprint from ZKG 3
GEBR. PFEIFFER SE MPS mills for coal grinding TEXT Dr. Caroline Woywadt, Head of Process Engineering, Gebr. Pfeiffer SE, Kaiserslautern/Germany In most areas of industrial grinding of bulk solids material, vertical roller mills (VRM) have prevailed. Compared with ball mills, the ratio is about 90 to 10. This relationship also exists in