In the absence of air in the vacuum dryer, the boiling time of the material is advanced, so that the evaporation efficiency is higher. Therefore, it can save the heat transfer area of the evaporator with the same amount of heat transfer. The evaporation heat source can be low-pressure steam or waste heat steam. Less heat is lost by evaporation. Drying before drying can sterilize. During the drying process, materials free of impurities are mixed. This is in compliance with "GMP" requirements. Therefore, the shape of the raw material is dry and indestructible.
Vacuum drying is divided into static and dynamic dryers. FZG vacuum dryer or model model in FZG square vacuum dryer belongs to static dryer. When the raw material is dried in the static dryer, the raw material is in a static state and its shape cannot be destroyed. Before drying, it can be sterilized. As the raw material is dried in the dynamic dryer, the raw material is constantly turned over. So it can dry better and more evenly.
It is suitable for drying unstable or heat-sensitive raw materials. The dryer also has good air tightness, so it is also suitable for drying raw materials with strong irritating and toxic gases and solvents that need to be recovered.
The dryer has been widely used in pharmaceutical, chemical, food industry, dye industry and other industries, and the air is in line with GMP standards.
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