The drum dryer, as a supporting drying series for mechanical charcoal machine equipment, is mainly suitable for drying and processing materials such as sawdust, sawdust, charcoal, distiller's grains, yeast, sludge, etc. The machine is mainly composed of a heat source, a feeding machine, a feeding machine, a rotary drum, a discharge machine, an induced draft fan, a discharger, and a power distribution cabinet. After dehydration, the dryer is evenly dispersed and fully in contact with hot air, accelerating heat and mass transfer during drying. During the drying process, the material is transported to another section of the discharge device of the dryer to discharge the finished product under the action of the inclined plate and the thermal atmosphere. At present, rotary drum dryers have been widely used in various fields, such as energy, chemical, building materials, and other industries.