Modeling non-isothermal mixing in a rotor mixer

A mathematical model of the mixing process in a two-rotor mixer is proposed . The model developed takes into account the interrelations among the follo wing essential features of the process: non-isothermal effects due to heat exchange and energy dissipation in flow, non-Newtonian behavior of a materi al and dependence of its properties on temperature and the degree of filler agglomerate destruction, kinetics of changing carbon agglomerate sizes due to mechanical distraction. The system of governing equations is formulated and the procedure of its solution is described. The theoretical model is compared with experimental data obtained in real t echnological process of mixing of a rubber compound. In all cases quite sat isfactory results of comparison were obtained. It means that the model prop osed can be used for analysis of real technological processes of mixing and choice of optimal technological regime and geometrical sizes of a mixer (p rimarily size of the gap between a rotor and the wall of a chamber) as well .