summary

Vacuum drying refers to heating and drying the material to be dried under vacuum conditions. It uses a vacuum pump to extract air and moisture, creating a vacuum state in the working chamber and accelerating the drying rate. Suitable for material drying in industries such as pharmaceuticals, chemicals, food, electronics, and traditional Chinese medicine.

Theoretical expression of vacuum drying

① When the heating temperature is constant, increasing the vacuum pump can accelerate the drying rate

② When the vacuum degree is constant, increasing the heating temperature can accelerate the drying rate

③ By increasing both the vacuum degree and heating temperature, the drying rate is greatly accelerated.

If a condenser is used, the evaporated solvent in the material can be recovered through the condenser, which is a commonly used drying equipment. If the JZJS-70 water ring pump vacuum unit is used, a condenser can be omitted, which saves energy and investment.