1、 The use of a disc dryer using water vapor as the heating medium has limited temperature and high requirements for water vapor pressure, resulting in an increase in the secondary investment of water vapor heating and pressurization equipment;

2、 The use of a disc dryer with heat transfer oil as the heating medium requires high heating and storage conditions for heat transfer oil, while also posing significant risks;

3、 The rake blades of each drying layer come into frequent contact with the material, causing friction between the material and the equipment, resulting in surface damage to the material and a high increase in magnetic foreign objects;

4、 The failure rate of the disc dryer is extremely high, and if there is a failure, it is difficult to repair and takes a long time to repair;

5、 Suitable for low-temperature drying in the traditional pharmaceutical industry;