Patent US4485974 - Vertical roller mill and method of use thereof .Dec 4, 1984 . The present invention relates to a vertical roller mill including a grinding roller which is urged against a grinding path on a grinding table by a.vertical grinding mill patent,Patent US6193176 - Cement clinker grinding method using vertical .Feb 27, 2001 . A method of grinding cement clinkers and a cement clinker grinding apparatus having a vertical roller mill are provided. In the method, feed.
vertical grinding mill patent