Drum dryer (also known as cylinder dryer, rotary dryer, etc.) is a kind of contact internal heat conduction type drying machinery.
The machine is mainly composed of rotary body, lifting plate, transmission device, support device and sealing ring and other components. The material is added from the higher end, and the high temperature hot flue gas enters the cylinder in parallel with the material, and with the rotation of the cylinder, the material runs to the lower end due to gravity. The inner wall of the cylinder is equipped with a copying board to copy the material up and down, so that the contact surface of the material and airflow increases to improve the drying rate and promote the forward movement of the material. The dried product is collected from the lower part of the bottom end.