NDC'01

DYNAMICS OF THE FLUIDIZED BED GRANULATION: EXPERIMENTS AND MODEL-BASED ANALYSIS

Stefan Heinrich, Mirko Peglow, Matthias Ihlow, Markus Henneberg and Lothar Mörl
Institute of Process Equipment and Environmental Technology,
Otto-von-Guericke-University Magdeburg,
Universitätsplatz 2, D-39106 Magdeburg
Corresponding author. Tel.: +49-391-67-12573, Fax: +49-391-67-12129
E-mail: stefan.heinrich@vst.uni-magdeburg.de

Keywords: population balance, granulation, dynamic simulation, drying, fluidized bed

ABSTRACT

In this study a balance of the particle populations is completed for a continuous fluidized bed-spray granulation with internal and external classification and milling. To do this, a balance space around the granulator and a balance space around the separator is described with all entering and exiting particle and mass flows. A simplified growth and attrition model is derived for the diameter change of the particles in the granulator. Thus it ought to be possible, to describe the particle size distributions changing over time in the fluidized bed and in the product flow.