... lignite,sand,slag,food cow dung dryer machine COW DUNG DRYER MACHINE INDRODUCTION:The dryer machine mainly consists of revolving part, ... plate, driving device, supporting device and seal ring. mining dryer professional is widely used in building materials, mineral dressing, ... limestone, coal powder, slag and clay, etc. COW DUNG DRYER MACHINE FEATURES:1) The dryer machine is an inclined rotary cylinder, ...