Technical Specifications
Material Quantity: 200 kg per batch
Cold Trap Low Temperature: ≤-60℃
Large Catch Water Capacity: 240kg/batch
Ultimate vacuum degree: ≤5 Pa
Total Power: 75 kW
Equipment installation area and height: 45m² x 2.6m
Weight: 9,500 kg
Features of this unit
Pre-freezing and drying are completed on-site, with the freeze-drying process automated and operation simplified.
2. The layer features circulation of medium, adjustable temperature, with a temperature difference of ≤1°C, ensuring more even cooling and heating effects.
3. Touchscreen operation, PLC control system, real-time monitoring of equipment operation.
4. Connectable to computers for remote control and storage of lyophilization curves.
5. Integrated design for easy transportation and installation, space-saving.
6. Features include CIP in-situ cleaning, SIP in-situ sterilization, hydraulic plug-in system, and more.
Equipment Application Fields
Pharmaceutical Industry: Freeze-drying technology can be used for the dehydration and preservation of dry and paste-like Chinese and Western medicines, including vaccines, enzymes, antibiotics, hormones, and more.
2. Food Industry: Vacuum freeze-drying technology is primarily used in the food industry for drying coffee, leafy vegetables, fruit juices, strawberries, whole shrimps, meats, specialty vegetables, etc. It preserves the color, aroma, flavor, shape, and nutritional value of the food, making it convenient for long-term storage and transportation. It is particularly suitable for the production of convenient and nutritious food products.
3 Nutritional Health: The vacuum freeze-drying technique is also suitable for drying royal jelly, pearl powder, ginseng, fish meal, ant powder, snake powder, etc., which can preserve their nutritional and active ingredients for a long time.
Ensure the naturalness of the nutritional supplements.
4. Biological Research: Utilizing vacuum freeze-drying technology, bacteria, arteries, bones, skin, corneas, and nerve tissues, as well as various organs, can be preserved for long periods. Water can be supplied when in use, enabling them to be rehydrated and maintained.
Its biochemical and physical characteristics.
5. Other applications such as in the production of aerospace thermal insulation ceramics, wood and silk artifacts in archaeology, preservation of products, specimen preparation, and special material preparation yield unique effects.
Principle of Freeze-Drying
Drying is one method of preserving substances from spoilage and deterioration. There are numerous drying techniques, such as sun drying, boiling dry, air drying, spray drying, and vacuum drying. However, these methods of drying are all based onPerform at temperatures of 0℃ or higher. The dried product is generally reduced in volume, harder in texture, with some substances oxidized, and most volatile components lost. Heat-sensitive substances, such as proteins, may denature. Microorganisms lose biological activity, and the dried material is not easily soluble in water. Consequently, there are significant differences in the properties of the dried product compared to the original, as the freeze-drying process differs from the above drying methods. The drying process is carried out primarily at temperatures below 0℃, i.e., while the product is frozen, until later stages when the product is raised to temperatures above 0℃ to further reduce residual moisture content, but usually not exceeding 50℃. Freeze-drying involves pre-freezing a substance containing a high water content into a solid, then, under vacuum conditions, allowing water vapor to sublime directly, leaving the substance itself in the ice framework formed during freezing. Thus, the dried product is loose and porous with no change in volume. To decrease the product's temperature and slow down the sublimation rate, it is necessary to apply appropriate heating. The entire drying process is conducted at lower temperatures.
Advantages of Freeze-Drying
1. Freeze-drying is carried out at low temperatures, making it particularly suitable for many thermosensitive materials, such as proteins and microorganisms, which do not denature or lose their biological activity. As a result, it finds extensive application in the pharmaceutical industry.
2. During low-temperature dry roasting, there is minimal loss of volatile components in the material, making it suitable for drying certain chemical products, pharmaceuticals, and food.
3. During the freeze-drying process, microbial growth and enzymatic activity are halted, thus preserving the original characteristics.
4. Due to drying in a frozen state, the volume remains almost unchanged, preserving the original structure and preventing any concentration.
5. The dried substance is loose and porous, resembling a sponge. Upon adding water, it dissolves rapidly and completely, restoring its original properties almost immediately.
6. Due to the drying process taking place under vacuum with minimal oxygen, some easily oxidizable substances are protected.
7. Drying can remove over 95% of moisture, ensuring the product can be preserved for a long time after drying without deteriorating.
Therefore, freeze-drying is currently widely used in the pharmaceutical industry, food industry, scientific research, and other sectors.
