In order to ensure better quality of insulation board, insulation board manufacturers need to dehumidify its raw materials.

There are two kinds of drying equipment for insulation board raw materials, namely hot air dryer and dehumidification dryer. The principle of the hot air dryer is to use hot air to blow away the moisture in the raw materials of the insulating board. The temperature range is 80-100℃, and the drying time is mostly 40-60min.

The principle of the dehumidifying dryer is to replace the moisture in the hot air with molecular sieves, and then use the drying air to blow away the moisture in the raw materials of the SMC insulation board. Using this method, the moisture in the raw materials can be reduced to less than 0.1%, and the drying temperature is generally At 80-100℃, the drying time is generally 2-3h, and a dryer with stable performance can reduce the dew point of the drying air to below -30°C; if the moisture content in the raw material is greater than 0.08%, a hot air dryer needs to be used for pre-drying.