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Freeze-dry (brief named Freeze-dry) is a stable process of material dried which will put the material contained with water to freeze to solid first, then make among them of the water sublimate from solid to air condition, removing water to preserve materials
Freeze-dry (brief named Freeze-dry) is a stable process of material dried which will put the material contained with water to freeze to solid first, then make among them of the water sublimate from solid to air condition, removing water to preserve materials
Products at solution stage are frozen through sublimation and desorption, then the solvent reduce to a certain extent, thereby preventing the formation of micro-organisms or chemical reaction between the solute and solvent that products can be preserved for a long time and maintained its nature.
Vacuum freeze-drying method is a liquid → solid → gaseous process. In freeze-drying process, "liquid bridge" between the solution particles has been frozen into "solid bridge". The relative position of particles has been fixed and does not exist surface tension on gas-liquid interface between the two particles. With the continuous distillation of solvent, "solid bridge" continuously decrease, but the the relative position between two particles will not longer change until the "solid bridge" completely disappear.
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Freeze Drying machine |
Unit |
Production for Batch |
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LTDG-1 |
LTDG-50 |
LTDG-75 |
LTDG-100 |
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Nominal Area |
m2 |
1 |
50 |
75 |
100 |
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Capacity |
Area of the heat shelf |
m2 |
1.08 |
59.9 |
89.9 |
110.1 |
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Tray Area |
|
1.02 |
50.2 |
75.8 |
101 |
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Tray Size |
mm |
780*510*37 |
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Pallet No.*Skip |
|
6pcs*1 |
64pcs*2 |
64pcs* |
64*4 |
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Total Volume Dehydration (Max |
Kg/batch |
15 |
1000 |
1500 |
2000 |
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Basic Parameter |
Heating Shelf |
Width |
mm |
540 |
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Length |
mm |
1630 |
3260 |
4890 |
6520 |
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Number |
|
17*2 |
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Volume of Drying Library |
m |
2200*4760 |
2200*7390 |
2200*10020 |
2200*12650 |
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Heat Mode |
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Radiation |
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Heating Shelf Space |
|
75 |
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Heating Shelf Range |
°C |
Room Temperature-120°C |
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Heating Shelf Cooling rate |
°C/min |
≥5°C/min |
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Heating Shelf heating rate |
°C/min |
≥3°C/min |
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Condenser Lowest Temperature |
°C |
≤-45°C |
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System Lowest Pressure |
Pa |
≤13.3 |
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Pumping Rate |
min |
10.01*105Pa-133Pa≤15min |
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Basic Supply |
Cooling Water qty: ≤30°C, 0.15-0.2MPa |
m3/hr |
0.9 |
30 |
48 |
68 |
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Total Power |
kw |
8 |
75 |
100 |
160 |
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Steam Consumption |
L/hr |
220(100) |
450(200) |
670(280) |
900(340) |
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Compressed air consumption:07-1.0Pa.0.9 |
L/hr |
0.45 |
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Water Consumption: 50°C, 0.10-0.20MPa |
kg/batch |
5 |
10 |
10 |
15 |
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Nominal Area |
m2 |
1 |
50 |
75 |
100 |
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Matching Cold Storage |
Cooling Water qty: ≤30°C, 0.15-0.2Pa |
m3/hr |
0.9 |
8 |
10 |
13 |
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Total Power |
kw |
8 |
12 |
19 |
23 |
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It’s applied for drying and dehumidification of material in such trades as pharmaceutical, chemical foodstuff, light industry, heavy industry etc., as well as heating and dehumidification of product, including raw medicines, original medicines, doses, traditional Chinese medicine tablet, powder, granulate, electuary, ball packing bottle, pigment, dyestuff, dried vegetable, food, plastic resin, electric clement and baking finish etc.
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The vacuum freeze-drying is advanced method of dehydration. The process takes advantage of the principle of ice crystal’s lyopilization under purified vacuum condition,in which the water in ice form on the frozen goods can be directly lyopilized into steam without melting in advance,to get the dried goods.The freeze dryer is a mechanical, refrigeration, vacuum, electric control in one integrated technology application.
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