Technical Specifications
Material Quantity: 500kg per batch
Cold Trap Low Temperature: ≤-50℃
Large Catch Water Capacity: 600kg per batch
Ultimate vacuum degree: ≤5 Pa
Total Power: 113 kW
Equipment installation area and height: 100m x 4.2m
Weight: 12,500 kg
Key Features of the Unit
1. Pre-freezing and drying are completed in situ, with the freeze-drying process automated for easy operation.
2. The board layer circulates a medium with adjustable temperature, with a temperature difference ≤ 1°C, ensuring more uniform 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 freeze-drying curves.
5. Integrated design for easy transportation and installation, saving space.
6. Features include CIP in-place cleaning, SIP in-place sterilization, hydraulic plug-in system, and more.
Equipment Application Fields
Pharmaceutical Industry: The freeze-drying technique can be used for the dehydration and preservation of various Chinese and Western medicines, including dry powders, suspensions, vaccines, enzymes, antibiotics, hormones, etc.
2. Food Industry: Vacuum freeze-drying technology is primarily used in the food industry for drying coffee, leafy vegetables, fruit juices, strawberries, whole shrimp, meats, specialty vegetables, etc. It maintains the color, aroma, flavor, shape, and nutritional value of the food, making it easy for long-term storage and transportation. It is highly suitable for the production of convenient and nutritious food.
3 Nutritional Health Products: The vacuum freeze-drying technique is also suitable for drying royal jelly, pearl powder, ginseng, fish meal, ant powder, snake powder, and more. It can preserve their nutritional and active components for long periods.
Guarantee the naturalness of the nutritional supplements.
4. Bioresearch: Utilizing vacuum freeze-drying technology, bacteria, arteries, bones, skin, corneas, nerve tissues, and various organs can be preserved for long periods. Upon use, water can be supplied to regenerate them, maintaining their integrity.
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 making, and preparation of special materials, yield unique effects.
Principle of Freeze-Drying
Drying is one method of preserving materials 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 all involve...Perform under temperatures of 0℃ or higher. The dried product typically shrinks in volume, becomes harder in texture, with some substances undergoing oxidation. Most volatile components are lost, and heat-sensitive materials like proteins may denature. Microorganisms lose biological activity, and the dried substance is not easily soluble in water. Consequently, there are significant differences in the properties of the dried product compared to the original. Unlike the above dry-frying methods, freeze-drying is conducted at temperatures below 0℃, i.e., while the product is frozen, until the later stage 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 with a high water content into a solid, then, under vacuum, allowing water vapor to sublime directly, leaving the substance in the ice framework. As a result, the dried product is疏松多孔 with unchanged volume. To reduce the sublimation rate and shorten the drying time, the product must be appropriately heated. The entire drying process is carried out at lower temperatures.
The Advantages of Freeze-Drying
1. Freeze-drying is carried out at low temperatures, making it particularly suitable for many thermolabile substances such as proteins and microorganisms, which do not denature or lose their biological activity. As a result, it finds widespread 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 foodstuffs.
3. During the freeze-drying process, microbial growth and enzymatic action are inhibited, thereby 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 material is loose and porous, resembling a sponge. Upon addition of 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 substances prone to oxidation 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.
