| Agitation and Mixing in Vibrated Beds | ||
| Kenneth J. Ford, Merck & Co., Inc., PO Box4, West Point, PA 19486, James F. Gilchrist, Lehigh University, Department of Chemical Engineering, Bethlehem, PA 18015 and Hugo S. Caram, Lehigh University, 111 Research Drive, Mountaintop Campus, Room B-323, Bethlehem, PA 18015 Flow patterns and power requirements for agitation in a vibrated bed have been studied for a variety of granular materials and Froude Numbers (Fr=ù2A/g). Additionally the effect of the bed diameter, depth and position of the impeller is reported. The flow characteristics are found to be related to whether the material is in: 1) a granular friction flow region, 2) a fluidized region and 3) a intermediate transition region between granular friction and fluidized flow. The potential applications to high shear granulation are presented.
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