Freezing dryer price
The freezing dryer is introduced.
Vacuum freeze-drying is also called drying, sublimation drying or simply freeze-drying. It is one of the drying methods for storing things.
The cause of damage, decay, deterioration, mainly due to external and internal factors caused by two factors, external factors, air, water, temperature, biology and other roles; internal factors, mainly the biological metabolism of the biological substance itself. If the effect of external and internal factors can be reduced to a very low level, the object can be kept unchanged in a certain period of time.
The drying method is to remove the moisture contained in the object, because water is one of the necessary conditions for all organisms to grow. When the water content of organism is reduced to a certain extent, it is difficult for organisms to grow or reproduce. Therefore, it can be stored for a long time. In addition, when water exists, some acids and bases dissolve in it and some chemical reactions take place to deteriorate the material.
Freezing dryer price:
According to your material characteristics and usage requirements, choose the appropriate model, freeze dryer small pieces, large millions;
The freeze dryer is divided into small freeze dryer, pilot freeze dryer and production freeze dryer.
Refrigeration dryer application:
There are many drying methods, such as drying, drying, drying, air drying, spray drying, vacuum drying, freeze-drying, etc. Only freeze-drying is an ideal way to preserve bioactive substances.
After freeze-drying, the products are sealed with vacuum or nitrogen to separate air, especially oxygen, and then stored at low temperature. The three factors of water, air and temperature are controlled, so that the product can be effectively preserved for a long time.
Freeze drying technology was developed during the second world war due to the massive demand for plasma and penicillin. Now it has been widely used in chemistry, pharmaceutical industry, food industry and scientific research, especially for bioactive substances which contain bioactive substances.
In China, vaccines were made by freeze-drying before liberation, but few. After liberation, China's freeze-drying industry has developed rapidly. Since 1952, it began to be applied in the veterinary field, and a batch of large and medium refrigerated dryers were made in China. Now all the provinces and autonomous regions of the country have various types of frozen dryers.
In veterinary medicine, it is mainly used for the storage of all kinds of veterinary microorganisms, the manufacture of various veterinary biological drugs, and all kinds of drugs for swine, cattle, horses, chickens, ducks, goose, rabbit and dog can not be separated from the freezing dryer.
Freeze drying belongs to the frontier science, which involves physical, chemical, biological and other knowledge, including refrigeration, vacuum, electrical, instrumentation and other technologies. Therefore, it is also a comprehensive professional science and technology.