Vacuum freezing drying machine

Abstract

The invention provides a vacuum freezing drying machine. The vacuum freezing drying machine comprises a material drying freezing box body, a heating system and a refrigerating system, wherein a dryingbin is arranged at one inner side of the material drying freezing box body, and a cold trap chamber is arranged at the other inner side of the material drying freezing box body; the drying bin communicates with the cold trap chamber; an evaporating discharging pipe is arranged in the drying bin; a cold trap pipe is arranged in the cold trap chamber; the heating system is connected to the evaporating discharging pipe; the heating system is used for heating the drying bin; and the refrigerating system is connected to the cold trap pipe and is used for freezing materials in the material drying freezing box body. According to the vacuum freezing drying machine, the drying bin and the cold trap chamber are positioned in the same communicated material drying freezing box body and are operated on the same device, so that the operation is simplified; and meanwhile, the cleaning operation is performed in the same box body; the inner structure is simplified; the dead corners are decreased by being compared with those of operation through a plurality of devices; and the GMP standard is easily reached.

Description

technical field [0001] The invention relates to the technical field of dryers, in particular to a vacuum freeze dryer. Background technique [0002] Conventional drying can cause the material to shrink and destroy cells. Freeze-drying, on the other hand, refers to the process of removing water or other solvents from frozen biological products by sublimation. Sublimation refers to the process in which a solvent, such as water, changes directly from a solid state to a gaseous state without going through a liquid state, like dry ice. The product obtained by freeze-drying is called a lyophilizer, and the process is called freeze-drying. The structure of the sample is not destroyed during the freeze-drying process because the solid components are supported by the solid ice in their place. As the ice sublimates, it leaves pores in the dry residue. This preserves the integrity of the product's biological and chemical structure and its activity. In the laboratory, freeze-drying...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a vacuum freeze dryer, which solves the defects of complicated operation and troublesome cleaning of the existing vacuum freeze dryer

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