MODELING OF CONTINUOUS FERTILIZER GRANULATION PROCESS FOR CONTROL

A two-parameter phenomenological model for fertilizer granulation taki ng into account the growth and death function was developed. It was as sumed that the growth and death functions were governed by layering an d breakage mechanisms, respectively. Experiments were conducted in a r otary drum granulator on an N-K system and the data were used for obta ining the model parameters with reference to the operating conditions and to validate the model. It is concluded that the proposed model ade quately describes the complexities of the fertilizer granulation proce ss.