1、 The working principle of vacuum drying is to heat and dry the dried material under vacuum conditions, and use a vacuum pump to extract air and moisture, which further accelerates the drying rate.

2、 Structural characteristics

1. The boiling point of the material solution decreases under vacuum, which increases the heat transfer driving force of the evaporator, thus saving the heat transfer area of the evaporator for a certain amount of heat transfer;

2. The heat source for evaporation operation can be low-pressure steam or hot water heating;

3. The evaporator has less heat loss;

4. Disinfection treatment can be carried out before drying, and there should be no impurities mixed in during the drying process, which meets GMP requirements;

5. It belongs to a static vacuum dryer, so the shape of the drying material will not be damaged.

3、 Main technical parameters