Fluidized Bed Dryer
Description
For material drying or cooling, air is fed into the system from below through a specially designed distributor plate. To produce the turbulent material flow required for fluidization across the entire width of the dryer, the process air passes the material bed at a high velocity. Without the support of any additional mechanical drives, the materials involved in the process are thoroughly mixed, guaranteeing favourable conditions for heat and mass transfer. The dust particles carried along by the outgoing air are separated in cyclones or filters and may be returned into the process. Additional heat exchanger surfaces may considerably enhance the efficiency of the drying or cooling process.
Application
Drying and cooling of solids admitting fluidization:
Sugar and sugar products, lactose, dextrose, potato granules, instant teas, table salt, apple pomace, coarse extraction meal.
Agglomeration and mixing of powder products, e.g. for the production of gelling sugar.
Advantages
 | Product conveyed without any moving parts
| | | Uniform temperature distribution on the product surfaces
| | | Low product temperature
| | | Low risk of product abrasion thanks to the fluidization principle
| | | Effective dust separation from the process air
| | | Integrated cooling
| | | Agglomeration or coating possible
| | | Experimental facility available for drying tests | |
Technical specifications
Floor space mē 2 40
Length mm 3,250 20,000
Width mm 1,000 4,000
|
