Multistage spray drying

Turning your liquids into high-quality egg powders

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Multistage spray drying

In cooperation with specialist TAV Ingenieria, Moba offers a technology that focuses on achieving higher quality dried egg products: a multistage vertical drying system. What separates this technology from the traditional method that uses a horizontal dryer is that the spraying of the liquid happens at the top of a vertical tower.

Such a vertical tower system has many benefits compared to a traditional system. One of the most important is that this way of spray drying creates a superior product at a lower cost.

The first stage is similar to the traditional system: The hot air blows through the spray particles and picks up the moisture, creating the powder. The second stage is that - because of the vertical tower - the fine particles can be re-injected at the top of the chamber. These fine particles agglomerate with the just-formed particles. The final product will rehydrate much quicker than traditional powder, saving the end-user valuable time. Finally, the dried particles descend to the bottom of the tower system, where the static fluid bed blows air at a lower temperature from the bottom. This will create much better flowability to the powders and also will avoid caking of the more fatty products, such as whole-egg and yolk powder. Plus, the use of this system allows final drying at a much lower temperature, so not only a better product is created, but it also saves energy.

 

Using a vertical tower will also enable you to clean the system automatically. Instead of cleaning the chamber manually, a vertical tower is CIP-cleanable. This makes switching from creating egg-white powder to creating powdered yolk or whole-egg products much easier.

 

The vertical spray drying systems are available in the following executions:

 
 
Model (Capacities related to water evaporation):
 
280
500
750
1000
1500
2000
2500
 
 
% solids
Moisture content
Flow kg/h
Whole egg
Liquid feed
24%
 
373
667
1000
1333
2000
2667
3333
 
Powder
 
4%
93
167
250
333
500
667
833
Yolk
Liquid feed
43,5%
 
512
914
1371
1829
2743
3657 
4571
 
Powder
 
4%
232
414
621
829
1243
1657
2071
White
Liquid feed
12%
 
322
575
863
1150
1725
2300
2875
 
Powder
 
8%
42
75
113
150
225
300
375
Concentrated white*
Liquid feed
25%
 
384
687
1030
1373
2060
2746
3433
 
Powder
 
8%
104
187
280
373
560
746
933
 
*) Concentrated liquid is obtained by using ultra filtration or reverse osmosis 

If you have any questions, please get in touch with your local Moba sales representative to help you further.

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