... steam. The dryer is made up of a large, rotating cylindrical tube. The dryer slopes slightly so ... by a series of internal fins lining the inner wall of the dryer. When the material gets high ... output / others operating by workerA:boiler,B:steam tank ,steam pipes,water pipes,valve,pressure meters,C:tools ... with gear and other equipmentA:boiler,B:steam tank ,steam pipes,water pipes,valve,pressure meters,C ...