Freeze dryer drying technology is widely used in the pharmaceutical industry, which can significantly improve the quality and grade of products. However, since it requires vacuum and low-temperature conditions

Drying is a very ancient operation, but the heating drying of powders and biological products often causes irreversible agglomeration of particles, especially in the preparation of ultra-fine powders

Cryogenic freeze dryer classification is different from different perspectives, and there are different classification methods.

There are many methods of drying, such as drying in the sun, cooking dry, drying in an oven, spray drying and vacuum drying, etc., but the ordinary drying method is usually carried out at a temperature above 0℃ or higher. ....

Daily maintenance and care knowledge of the freeze dryer:   (1) Observe and record the instrument values 4 times per shift   1. The pressure difference between the compressed air inlet and outlet should not exceed 0.035 Mpa;   2. The evaporation pressure gauge is 0.4 Mpa-0.5 Mpa;

The low-temperature drying of the freeze dryer is to freeze the substance with a lot of moisture in advance, and then immediately sublimate the water vapor under the standard of the vacuum pump

The freeze dryer is composed of a refrigeration system, a vacuum system, a heating system, and an electrical instrument control system. The main components are a drying chamber, a condenser, a refrigeration unit...

The freezing method of freeze-dried products is generally divided into low-temperature rapid freezing and low-temperature slow freezing.