... corn residue,soybean residue,chemical products,fertilizer etc. rotary drum dryer can dry organic power,wine tank,corn residue ... ,chemical products,fertilizer etc. Principle of workrotary drum dryer is tilted slightly and the cylindrical rotationg body ... on the other side of the lower part.Hot air from the feed end or discharge end ... , the higher the evaporation intensity. good sale rotary drum dryer