Product Application
vegetable protein low temperature vacuum belt dryer developed by this company is a wholly-sealed vacuum belt
drying equipment that can feed and discharge materials continuously. According to the capacity required by customer,
3-11 layers of belts can be designed inside the vacuum dryer. This product is suitable for drying various sugars
such as paste, maltose, cane sugar and beet sugar, and this product solves a big problem on drying of high-concentration,
hygroscopic and high-viscosity Chinese medical extract.
Operating principles of beet Sugar drying machine
vegetable protein low temperature vacuum belt dryer is a continuous feeding and discharging vacuum drying equipment.
The raw material to be dried is feeded into drying machine through feeding pump, and is well distributed on convey
belt through distributing device. The boiling temperature of materials is reduced through high vacuum, and the moisture
of liquid raw material is sublimated to gas directly. The convey belt runs on the heating plate at a constant speed,
and the internal heat source of heating plate can be steam, hot water or electrical heating, With the running of convey belt,
the temperature is adjustable up and down according to the specific characteristics of material from evaporating
and drying in the front to cooling discharging in the end. The discharging end is equipped with a specific vacuum
grinding device to grind products into different granularity. The dried powder can be automatically packaged or
used by the following process.
Main features of vegetable protein low temperature vacuum belt dryer
The whole set of process is in automation, channelization and continuity.
The targets of continuous feeding and discharging in vacuum condition have been reached.
The operations of drying, smashing and pelletizing can be completed in vacuum condition.
The operation cost is 1/3 of vacuum drying oven and spray drying, and 1/6 of freeze drying.
The maximum operators are only two, the human costs are reduced greatly.
Drying temperature can be adjusted from 25ºC to 150ºC according to process technological requirements.
Heat sensitive materials will not be denaturated or contaminated.
Drying powder can be discharged in 30-60min and the discharging rate is 99%.
Can dry liquid and pasty materials with high viscosity difficult drying.
Online automatic-cleaning, in accordance with GMP standard
Model Diameter Length Height Heating area Heating temperature Moisture content of feeding raw material Moisture
content of dried product Heating resource Water evaporation capacity Main dryer power
TGZDY Model Vacuum belt dryer is continuous infeed and discharge vacuum drying equipment. Liquid product is conveyed
into dryer body by infeed pump, evenly spread on belts by distribution device. Under high vacuum, the boiling point of the
liquid is lowered; water in the liquid material is evaporated. Belts move on the heating plates evenly. Steam, hot water,
hot oil can be used as heating media. With the moving of the belts, the product goes through from the beginning evaporating,
drying, and cooling to discharge in the end. The temperature decreases through this process, and can be adjusted for different
products. Special vacuum crusher is equipped at the discharge end to produce different size of end product. The dry powder
or granule product can be automatically packed or continued with subsequent process.
TGZDY Model Vacuum belt dryer turn traditional static drying to vacuum dynamic drying, reduce drying time from 8-20 hours
to 20-80 minutes. In vacuum belt dryer, the drying temperature is adjustable for different products. It solves the high temperature
problem with spray dryer and denaturation problem due to long drying time with traditional drying oven. Color, solubility, ingredients
preservation of the dry product from vacuum belt dryer are incomparable.
As the materials are gradually dried within a period of time after they directly enter the vacuum condition, the granules obtained
after being dried have the crystallization effect to a certain degree. Viewed from the micro structure, there are micropores inside.
After they are crushed into the diameter required, the granules can be used for direct tablet pressing or capsule filling with good
flowability and good instant solubility.
The vacuum belt drying technology has a wide application range. It is suitable for most extracts, and is especially suitable for
materials of high viscosity, materials that are easy to agglomerate, and thermoplastic and heat sensitive materials.
The use of vacuum belt drying can conquer the defects of too fine and dense spray drying powder with too high temperature.
In addition, the conveyor belt running speed, material thickness, temperature, environment vacuum degree and other parameters
can be adjusted to meet different technological requirements of products, which are far more superior to the spray drying.
Advantage
• An automatic, pipelined and continuous drying process
• Continuous feed-in, dry, granulate, discharge in vacuum state
• Finish drying, crushing and granulating in vacuum state
• Operation cost: 1/3 of vacuum oven, spray dryer, 1/6 of freezing dryer
• 2 operators at most, much less labor cost
• Adjustable drying temperature (20-150ºC) & drying time(20-80min)
• No denaturation and bacterial contamination for heat sensitive material
• Continuous discharge dried powder after 20~80min, with collecting rate 99%
• Able to solve the problem for various raw liquid or paste of high viscosity and
difficult drying
• CIP cleaning system, GMP Standards
Application Scope
Vacuum belt dryer (VBD) is mainly used in drying many kinds of liquid or paste raw material,
such as Traditional & Western medicines, food, biological products, chemical material, health foods, food additive etc,
especially suitable for drying material with high-viscosity, easy agglomeration, or thermoplastic, thermal sensitivity,
or material that can not be dried by traditional dryer. For above materials, VBD is the best choice.
• Pharmaceutical industry: Chinese medicine extract, plant extract, egg embryo, PVPK series, fermenting liquid etc.
• Food industry: malt extract, carbohydrate, instant beverage, tea powder, cocoa powder, corn paste etc.
• Chemical Industry: lithium battery, emamectin benzoate etc.
Technical parameters
| Model |
Diameter |
Length |
Height |
Heat-
exchange area |
Heating temp |
Water content of feeding material |
Water content of final product |
Heating media |
Water
evaporation |
Total power |
| |
mm |
mm |
mm |
M2 |
°C |
% |
% |
|
Kg/h |
kw |
| GZDY5-2 |
1400 |
5500 |
2300 |
5 |
20-120 |
20-80 |
0.2-5 |
Steam or hot water or hot oil |
3-5 |
6.00 |
| GZDY10-2 |
1400 |
7300 |
2300 |
10 |
5-8 |
8.00 |
| GZDY30-4 |
1700 |
9800 |
2700 |
30 |
15-25 |
10.00 |
| GZDY60-6 |
2200 |
10800 |
3550 |
60 |
45-55 |
14.00 |
| GZDY80-6 |
2200 |
13500 |
3550 |
80 |
60-75 |
14.50 |
| GZDY100-6 |
2200 |
16100 |
3550 |
100 |
80-90 |
15.50 |
| GZDY120-7 |
2200 |
16100 |
3550 |
120 |
100-110 |
16.50 |
| GZDY160-8 |
2800 |
17300 |
4100 |
160 |
120-140 |
18.50 |
| GZDY200-10 |
2800 |
17300 |
4100 |
200 |
160-180 |
25.50 |
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