The internal structure of the three-return rotary drum dryer machine mainly includes the following key parts:
‌Feed area : This is the initial area where the material enters the dryer. The feed area consists of a feed device, a feed hopper and a feed roller. The feed unit is responsible for feeding the material with high humidity into the feed hopper, which uses its own weight and the material's own gravity to feed the material into the feed roller. Feed roller through the rotation and gravity of the material, the material smoothly into the next part of the dryer.

‌Drying area : As the core of the three-return rotary drum dryer machine, the drying area is the main area for material drying treatment. It is mainly composed of rotary drum, dryer, hot blast stove and hot air pipe. After the material enters the drying area, under the rotation of the drum and the heating of the dryer, the material with high humidity is gradually dried to the required moisture content. The hot blast stove provides the necessary heat, while the hot air pipe carries the hot air to the dryer to ensure that the material is fully dried.
‌Discharge area : The discharge area is the area where the materials are discharged from the dryer after drying. It is mainly composed of a discharge device, a discharge roller and a discharge plate. The discharge device sends the dried material to the discharge roller, which sends the material out of the dryer smoothly through its own rotation and the gravity action of the material, thus completing the whole drying process.
In addition, the three-return rotary drum dryer machine also uses a special three-layer heat insulation design and Mosaic structure, which not only improves the drying efficiency, but also realizes the recycling of heat energy, making the equipment more efficient and energy-saving ‌. At the same time, the drum may also be equipped with a stirring plate or lifting plate to better disperse the material and make full contact with the hot air.
In summary, the internal structure of the three-return rotary drum dryer machine is precise and efficient, and all parts work together to complete the drying process of materials.