Issues related to material movement in fluidized bed dryers
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In a fluidized bed dryer, air is forced in from the bottom of the fluidized bed by an exhaust fan; so how does the material that is in a fluidized state there manage to move in the direction of discharge? Is it merely the guiding effect of the shaped holes on the sieve plate at the bottom of the fluidized bed?
How is it that no one has answered such a good question? I feel that in addition to the guiding effect of the shaped holes on the sieve plate at the bottom of the fluidized bed, it is also related to the orientation of the bottom valve dampers, which should be in line with the shaped holes.