Drying characteristics of particles in a constant drying rate period in vibro-fluidized bed.

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Particles were dried in a vibro-fluidized bed and the drying characteristics in a constant drying rate period are discussed. Ion exchange resin particles were used for sample because they were fluidized smoothly even at a somewhat high moisture content. The effects of vibration on the uniformity of moisture content in the bed were remarkable when air velocities become lower than the minimum fluidization velocity umf. The bed could be dried uniformly and it had no moisture content distributions under the appropriate vibrational conditions, even when air velocities were lower than umf. The uniformity of moisture content in the bed depended upon air velocity, vibrational intensity, and height of bed.
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