ИССЛЕДОВАНИЕ УСЛОВИЙ ДВИЖЕНИЯ МАТЕРИАЛА В КАМЕРЕ ГРАНУЛИРОВАНИЯ

Abstract

The article substantiates the need for scientific and technical developments, theoretical and experimental studies of the processes of agglomeration of powdery, viscous-plastic materials, as well as materials of an anisotropic structure to obtain molded bodies of a given granulometry in order to improve their consumer properties. A mathematical model is presented. It describes the conditions of material movement in the granulation chamber, which is presented as a system of differential equations for the movement of a viscous incompressible fluid in a cylindrical coordinate system. The results of the theoretical studies carried out are confirmed by physical modeling of the technological process of granulation. According to the study of the conditions of movement of the material in the granulation chamber, it is conclude that the rate of shear deformations of the material layer across the width of the chamber varies unevenly, that is, the degree of freedom of the particles in it is limited. A solution is proposed to eliminate this disadvantage by creating more favorable conditions for the implementation of granulation processes, which can be created in a toroidal or close to it in shape chamber due to the intensification of the volumetric and spatial movement of the material.