PROBLEM TO BE SOLVED: To crush a raw material and manufacture a plurality of products having different particle sizes simultaneously in a short time even when a single compact roller mill is used.;SOLUTION: This roller mill is provided with a rotary table 2 to be rotated in a vertical casing 4 while placing the raw material thereon, a crushing roller 3 to be rotary-driven in press-contact with the top surface of the table 2 and a plurality of almost cylindrical separators 12 arranged at the upper position of the table 2 for classifying the material crushed by the table 2 and the roller 3 into a plurality of products having different particle sizes.;COPYRIGHT: (C)2003,JPO
展开▼