The dehumidification process is carried out manually according to the running direction of the fan in the drying room. When the temperature is above 55°C, the humidity can be removed. According to the direction of the fan, the corresponding humidity outlet cover should be opened or closed manually. The temperature will gradually rise after dehumidification, but cannot exceed 75℃. The intermediate treatment is the humidity control treatment during the drying process. For the aspen boards that are easily deformed or cracked, the time for moisture removal should not too long each time during the drying process. This operation usually takes about 6-7 days.
3 Normal drying stage
After 9 days, the temperature is 65℃-75℃, over-temperature is strictly prohibited, and the circulating fan is reversed every 4 hours. This stage will take about 4-6 days to dry.