Automatic Temperature Tea Coffee Bean Freeze Dryer
Automatic Temperature Tea Coffee Bean Freeze Dryer
Based on the actual operation of the production freeze dryer, we have summarized several types of fast freezing and slow freezing:
1. The fastest way: immerse the product in an ultra-low temperature environment (such as liquid nitrogen), instantly forming the entire crystal, forming a very fine crystal (or amorphous), which is truly fast freezing.
2. The temperature of the board is slow, and the temperature difference between the board temperature and the product temperature is not large. The entire product is uniformly cooled and formed too cold. When the energy accumulation is sufficient, all the crystals are immediately crystallized and a quick freezing effect is obtained.
3, the plate temperature drops very slowly, and at a suitable temperature below the eutectic point (or slow cooling), the product forms a small degree of supercooling, a small amount of crystals appear in the liquid, and continues to cool the crystal growth until large crystals are obtained. Real slow freezing.
4, the plate temperature drops faster, the plate temperature is much lower than the product temperature, the bottom of the product freezes first to produce crystals, but the upper liquid is still very hot, so it will not crystallize immediately, the crystal will grow slowly, it will slowly freeze. influences.
In fact, the speed of pre-cooling should be based on the product to choose a good freezing rate to make the perfect freeze-dried product.
Parameters
Model | KFD-20 |
Capacity (Kg/Batch) | 200 |
Shelf Area (㎡) | 20 |
Shelf Size (Mm) | 2200*600 |
Shelf Quantity (Layer) | 8+1 |
Shelf Quantity (Piece) | 18 |
Space Between（Mm） | 95 |
Shelf Temperature (℃) | room to 120 |
Water Catcher Temper (℃) | -65±5 |
Max Catch Water（Kg） | 300 |
Ultimate Vacuum （Pa） | 5 |
Electricity（Kw） | 63 |
Weight（Kg） | 8000 |
Warranty:
1.We guarantee that the commodity hereof is made of the best materials and new brand with top workmanship, and in accordance with quality specification stipulated in product Contract and Appendix.
2. Guarantee period shall be within 12 months from the date of acceptance. During this period, if there are quality problems, we will provide solution by verbal or written communication.
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