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Difference between revisions of "Air Dispersion Dryers"
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* Tea | * Tea | ||
Fluid bed dryer is suited for powder, granules with average particle size 50 - 2000 microns. If the feed material is sticky and having wide particle size distribution. Vibro fluid bed dryer is the most suited, where vibration helps the movement of solids and drying. | Fluid bed dryer is suited for powder, granules with average particle size 50 - 2000 microns. If the feed material is sticky and having wide particle size distribution. Vibro fluid bed dryer is the most suited, where vibration helps the movement of solids and drying. | ||
==Operation== | ===Operation=== | ||
* Material is easily transported through the dryer due to fluidization and vibration | * Material is easily transported through the dryer due to fluidization and vibration | ||
* Fluidization velocity can be judiciously selected to minimize entertainment of the smaller :particles | * Fluidization velocity can be judiciously selected to minimize entertainment of the smaller :particles | ||
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* Residence time can be adjusted by varying the bed height, through the overflow weir position. | * Residence time can be adjusted by varying the bed height, through the overflow weir position. | ||
* Provided with cooling section by partitioning of the plenum chamber. | * Provided with cooling section by partitioning of the plenum chamber. | ||
==Advantage== | ===Advantage=== | ||
* Well suited for constant | * Well suited for constant | ||
* Well suited for failing rate drying | * Well suited for failing rate drying | ||