The continuous grain dryer mainly consists of the following parts:

1. Feeding device: responsible for transporting the grain to be dried into the dryer. This device is usually designed to feed grain evenly and continuously to ensure stable grain flow during the drying process.

2. Downstream drying section: In the downstream drying section, hot air contacts the grain at a higher temperature, causing the grain to quickly heat up and initially remove surface moisture. The purpose of this stage is to quickly start the drying process and prepare for subsequent countercurrent drying.

3. Countercurrent drying section: In the countercurrent drying section, hot air contacts the grain at a lower temperature, gradually removing moisture from the grain from the inside. Since hot air and grain flow in opposite directions, the hottest air comes into contact with the driest grain first, which helps prevent the grain from overheating or burning.

4. Slow drying section: This section is used to exchange heat and moisture during the drying process to further improve the drying effect. The grain is gradually cooled in this section, while the internal moisture continues to evaporate to achieve better drying effects.

5. Discharging device: Responsible for discharging the dried grain from the dryer. This device is usually designed to discharge grain evenly and continuously, and ensure that the moisture and temperature of the grain when discharged meet preset standards.

6. Heat source and ventilation system: including burners, hot air stoves, fans, etc., used to generate and control the temperature and flow of hot air to ensure the efficiency and stability of the drying process.

7. Control system: used to control parameters of the entire drying process, such as temperature, humidity, wind speed, etc. Modern counterflow grain dryers usually use microcomputer fully automatic control, making the operation easier and enabling precise control of the drying effect.

Dingli grain dryer can efficiently and stably complete the grain drying task and improve the quality and storage performance of grain. At the same time, its unique design also enables it to reduce damage to grain during the drying process, reducing the breakage rate and the occurrence of scorching.