Development and Research of Parameters of Dual-Resonator Microwave Installation for Defrosting and Heating Cow Colostrum

Abstract

A method for creating continuous-flow microwave installations for defrosting and heating cow’s milk is developed on the basis of a step-by-step systematization of methods for optimizing the electrodynamic and structural-technological parameters of the installation, which allow preserving the feed value of raw materials. Construction of the resonator radiodermatitis microwave installation continuous-flow action allows you to implement the innovative idea of separation processes defrosting and heating colostrum in accordance with the nature of the change of dielectric properties of materials in the range of negative and positive temperatures to speed up the process, allowing you to keep feeding value of colostrum. The developed two-resonator installation most fully implements the main criteria of the technological process: acceleration of the processes of defrosting and heating of cow colostrum; continuous-flow mode in the presence of electromagnetic safety; variability of the plant performance due to the use of several air-cooled magnetrons. The total power of the microwave installation is 4.5 kW with a capacity of 35...40 kg/h, specific energy costs of 0.12...0.13 kWh/kg. The duration of the process is reduced by 4 times, and, consequently, the cortical value of colostrum is preserved. The basic colostrum defroster, with a capacity of 6 kW, operates at an energy cost of 0.3 kWh / kg, the process duration reaches 1.5...2 hours. The improved conical resonator allows to preserve the conditions for the occurrence of resonant oscillations due to the re-reflections of higher-order electromagnetic waves from critical sections and provides for the limitation of electromagnetic wave radiation without an additional shielding housing. The efficiency of a quasi-stationary toroidal resonator, estimated by the magnitude of the electric field strength (EF), the generator power and the intrinsic Q-factor is 0.93