1. Improve the drying medium. The material that the dryer can mix with water vapor and take it away is called the drying medium. According to the definition of the drying medium, if the drying medium can maximize the heat of the grain during the drying process, and bring the continuously vaporized water vapor Go, then the grain can be dried. And this depends on the bag capacity of the drying medium to water vapor, that is, the absolute humidity of the air.
2. Adopt drying, ventilation and drying method. In traditional drying methods, the dryer is usually set to a moisture content of 14%-15%, and then cooled and stored. The drying and ventilating drying method first dry the grain at a high temperature to reduce its moisture to 18%, and then send the moisture grain into the warehouse for 5 to 7 hours to keep the temperature and moisture between the inside and the surface of the grain. It tends to balance, and then it is ventilated slowly, the air volume is 25m3 to 50 m3/h, and the ventilation time is about 8 hours, so that the temperature of the grain is the same as the atmospheric temperature. Generally, the higher the temperature of the grain entering the warehouse, the more moisture will be removed ( About 4%).
