Drum dryer processing power, less fuel consumption, low cost dry. Dryer having high temperature characteristics, and be able to use high-temperature hot air on the material for fast drying. Scalable capacity, design considerations production margin, even if the small increase production, without replacing equipment. The device structure aligning tugboat tugboat rolling ring with good, greatly reducing the wear and power consumption. Specifically designed to stop wheel structure, greatly reduced due to the level of equipment tilt work thrust. Strong anti-overload, the smooth operation of the cylinder, and high reliability. Drum dryer scope of application in the chemical industry, miners, metallurgical and other industries, such as ore, slag, coal, metal powder, clay, diatomite, kaolin; agriculture, feed, fertilizer industry, such as straw, pasture, sawdust, leaves, fish meal corn, rice, wheat, corn, butter, starch residue, lees, dregs, Marc, soy sauce residue, bagasse, peat, organic fertilizer, sludge, aquatic waste, scrap of food plants, slaughter plant waste, organic fertilizers , inorganic fertilizer, phosphate fertilizer, ammonium sulfate; the special requirements powdered, dry granular materials. Such as crystals, precipitated calcium carbonate, activated clay, magnetic powder, graphite, inorganic mud, clay, lime, ore slurry, phosphorus slag, aluminum red mud; require low-temperature drying and need large quantities of continuous dry materials.