... 2.good performance. 3. easy operation,l Roller Drying machine, rotating drying machine, , Introduction:Roller Drying machine Drum dryer, also known as ... industry, drying coal, limestone, grain, sand, clay and other materials. Roller Drum dryerThe main part of the drum dryer for a ... other parts. Dry wet materials by belt conveyor or bucket elevator transfer to hopper and then to the feeding end by ...