Vacuum freeze drying equipment is the fresh material pre-cool in low temperature condition, under the condition of vacuum low temperature, heating it, make the material in the frozen into a tiny ice grain sublimation, directly collected by the condenser, so that to get dried materials. It is one of the most advanced dewatering method in the word.
The vacuum freeze-drying equipment is suitable for the food industry, biological products and extracts, Chinese herbal medicines and health care products, industrial materials and other fields.
Fruit: Almonds, jujube, peanuts, longans, walnut, papaya tablets, apple slices, lemon, hawthorn pills, banana, etc.
Vegetable: Asparagus, beans, kidney beans, lentils, eggplant, red pepper, chinese prickly ash, black fungus, tremella, papaya tablets, bitter melon, radish, cucumber slices, mushrooms, ginger, garlic, etc.
Medicinal material: Flos lonicerae, radix scutellariae, zome of rehmannia, mulberries, forsythia, chinese wolfberry, etc; 4. Others: Lily, rose, peony seeds, fennel seeds, etc.
Freeze-drying process is carried out in a closed low temperature environment, completely separated from air dust bacteria and other pollution materials. There are almost no changes from raw materials to dried materials. The obvious advantages are:
1. Keep all ingredients of raw materials unchanged (including heat sensitive, functional, and biologically active ingredients)
2. Keep the various properties of raw materials unchanged (organization structure, appearance, color, taste, etc.)
3. Porous loose, easy to crush and disperse.
4. Easy to dissolve in water and rewater quickly.
5. Complete dehydration, easy to long-term preservation and transportation.
|mdrying box's dimension||0.5*0.5||0.7*0.7||0.8*0.9||0.9*1.0||1.0*1.2||1.1*1.5||1.2*1.5|
|effective drying plank area||0.5||1||2||3||5||8||10|
|(℃)drying plank's working temperature||-35℃~60℃|
|(℃) drying plank's difference in temperature||±1℃|
|(kg)condensator's water-catching weight||7||12||25||40||60||100||120|
|(Pa) max working vacuum pressure||3|
|cooling water's flux||1||2||3||5||5||8||8|
|Defrost method||Spray and immersion|