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Applications
Freeze drying is currently worldwide most advanced technology for food dehydration processing. Compared with the commonly used drying method, the freeze-dried food produced with this technology features long period of quality assurance, good re-hydration nature, good-looking color, good flavor, taste and high content of nutritious components. The dried food basically remains unchanged in its volume and shape, looks like sponge and has no shrinking.This freeze drying technology can be widely used in process of vegetables, fruits,condiments,aquatic products,biological products, medicine,beverage etc.
Structure of freeze dryer
The main body of the freeze dryer consists of lyophilization house and quick freezing storehouse. The lyophilization house of the freeze dryer is a horizontal cylinder in which there are layers of heating plates between which material tray suspends. The cooling trap which collects vapor is placed on sides of the cylinder. There are also accessories like material conveying system,vacuum system,feeding system,refrigerating system and monitoring system. From the allocation of the cooling trap, JDG freeze dryer has side-positioning system,back positioning system and outside or back end or outside positioning system.
When the material is previously treated, it is conveyed by overhead track into quick freezing room for freezing ,and to drying house freeze drying chamber for unloading. The heating system provides material with sublimating latent heat and refrigerating system provides quick freezing room and cooling trap with cooling energy.
Technical specifications
Model |
JDG-25 |
JDG-35 |
JDG-50 |
JDG-60 |
JDG-70 |
JDG-100 |
JDG-200 |
| Chamber size (diameter *length) |
¢1.9×2.7 |
¢1.8×3.5 |
¢1.9×5 |
¢1.9×5.4 |
¢2×5.4 |
¢2.5×5.5 |
¢2.5×10.5 |
| Usable shelf area | 25 |
35 |
50 |
60 |
70 |
100 |
200 |
| Input capacity (kg/batch) |
250 |
350 |
500 |
600 |
700 |
1000 |
2000 |
| Working temperature of shelf(ºC) | 0ºC~120ºC |
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| Temperature difference of shelf(ºC) | ±1ºC | ||||||
| Temperature of ice condenser (ºC) |
-60ºC ±5 | ||||||
| Ice capacity (kg) |
350 |
400 | 550 | 650 | 800 | 1500 | 2500 |
| The highest vacuum degree of drying chamber(Pa) | 2 |
5 |
5 |
8 |
8 |
10 |
15 |
| Capacity of cooling water (less than 25ºC) (T/h) |
20 |
30 |
50 |
50 |
50 |
100 |
200 |
| De-icing | Spraying and immersing |
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| Working environment | Temperature 5ºC~30ºC,relative humidity<75% | ||||||
| Total Power | 94 |
125 | 190 | 220 | 250 | 300 | 600 |
| Installation area and height | 35×2.5 |
45×2.5 |
100×3 |
130×3 |
150×3 |
200×3 |
380×3 |
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