To dry animal manure and turn them into marketable goods and earn millions.Parameters: 250+ tons output per day; heating cost down 40%-60%;manufacturing fee down 20%; power bill down 30%; drying speed up 3 times key words:rotary drum dryer, Sawdust Dryer, dross Dryer, Sand Dryer, Mineral Powder Dryer, Rotary Dryer, Drum Dryer, Dryer Machine, Steam Dryer, Industrial Dryer