Experimental Investigation on Flow Patterns of Cylindrical-Conical Spout-Fluidizing Bed

Abstract:

Experimental investigations on hydrodynamic characteristics of cylindrical pressurized spout-fluidizing bed were carried out. Two kinds of millet were used as bed materials. The operational pressure is 0.1MPa~0.4MPa (absolutely pressure). Five distinct flow patterns, i.e, fixed bed(FB), jet in fluidized bed with bubbles(JFB), jet in fluidized bed with slugging(JFS), spout with aeration(SA) and spout-fluidizing bed(SF) were identified. Effects of the static bed height and operational pressure on the flow pattern map were particularly studied. Typical flow pattern images obtained by a high- resolution digital CCD camera were presented for classifying these flow patterns. Typical flow pattern maps were plotted for describing the transitions between flow patterns with operating conditions

• Periodical: Advanced Materials Research (Volumes 354-355)
• Pages: 338-343
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.354-355.338
• Online since: October 2011
• Authors: Qian Jun Li, Dong Ping Zhang
• Keywords: Flow Pattern, Flow Patterns Transition, Spout-Fluidizing Bed

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