Working principle of vacuum freeze dryer

After starting the machine, the material is put into the material box for freezing. The freezing process of the material. On the one hand, the vacuum system is evacuated to take part of the water away; on the other hand, when the material is frozen, the water content in some molecules is discharged to The surface of the material is frozen. After reaching the freezing requirements, the material is heated and dried by the heating system, and the water contained in the material is brought to the freezing trap box for freezing through vacuuming, which meets the requirements of the material for freeze drying.

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