Pulverizer - WikipediaA pulverizer or grinder is a mechanical device for the grinding of many different types of . The ball and tube mills are low-speed machines that grind the coal with steel balls in a rotating . Bleeding seal air from plenum chamber to the mill maintains separation between pulverized fuel in the Mill and the outside atmosphere.different between ball and tube mill,Ball Mill & Rod Mill Design - Mineral Processing & Extractive .Rod and Ball Mills not so much however as their . actions are hidden in the tube (mill).
different between ball and tube mill