FUZZY AND LOGICAL MODEL OF DYNAMICS OF LOCALIZED FRONT EVAPORATION IN THE PROCESS OF PELLETS DRYING
Thermally activated chemical and energotechnological process of moisture removal during the thermal drying of phosphorite pellets is investigated in this work. The fuzzy and logical kinetic model of phosphorite pellets drying process considering complexity and nonlinearity of dependent parameters, indeterminacy of course of dynamic processes, features of heating and technological systems of pellet production, influence of the external environment parameters and variation of raw materials is suggested. As moisture evaporation happens not only on the surface of pellets, but also inside them, the temperature of the central layer of pellets is lower, than the temperature on their surface, i.e. a temperature gradient is observed. By results of computing experiments the interrelation between changes of local temperatures and average integral temperatures and moisture contents is established. The conclusion is drawn that pellets have higher speed of drying at the constant temperature of the heat carrier