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Vibrated Fluid Bed Dryer: The vibrated fluid bed dryer is used for fluidization of materials
which are difficult to handle in a static fluid bed dryer. These
materials are often characterized by having one or more of the
following physical properties:
- Wide particle size distribution
- Low strength of wet or dry particles
- Stickiness or thermo plasticity of the particles
- Pasty properties of the wet feed
In the vibrated fluid bed dryer, the material is easily transported
through the dryer by the combined effect of fluidization and vibration.
The fluidization velocity can be judiciously selected, to minimize
entertainment of the smaller particles, to avoid gas bubbling m the
fluid bed thereby minimizing attrition. The residence time can be
adjusted, by varying the bed height, through the overflow weir
position. A cooling section can also be provided, by partitioning of
the plenum chamber.
Typical products handled
- Salt
- Milk products (used as a secondary dyer)
- Chemicals
- Tea
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