Granulation of Raw Materials During the Dielectric Heating Process

Abstract

The aim of the work is to develop and justify the parameters of the installation for the granulation of non-food waste of animal and vegetable origin in the process of dielectric heating. Objectives of the study: to develop microwave installations with volumetric resonators of different configurations, providing high electric field strength and continuity of the process of granulating raw materials; calculate the parameters of the electrodynamic system of the generator (electric field strength, the intrinsic Q factor of the resonator) and visualize the distribution pattern of the electromagnetic field in the resonators of different configurations. The studies were based on the dielectric heating theory and the theory of forming granules from multicomponent raw materials. The parameters of the electrodynamic system of the microwave generator were studied in the CST Microwave Studio program. The structural performance of volume resonators is analyzed from the point of view of the implementation of the requirements imposed by microwave devices and granulators intended for use in farms. Analyzed devices with a toroidal resonator and a disk matrix and with ellipsoid resonators and gear ring matrices are analyzed. The electromagnetic field distributions are visualized in the developed design versions of resonators combined with the working chamber of granulators. The values of the self-quality of the resonators and the electric field strength in them are calculated.