PREFACE
25 ensp 0183 ensp Bowl mill is a medium speed mill with 30 rpm speed It pulverizes coal to a size of 200 microns with a purity of 600 micron Bowl mills are available in varying capacities ranging from 1 7 to 100 tons per hour A 200 MW unit uses 6 mills of 32 tons per hour capacity out of which 5 run at a time and one is in stand by condition for emergency …