Electric pasteurizer of milk.
There were designed, manufactured and tested in a production a setting for disinfection of milk by exposure of physical factors, which has a new design concept of the working part in the form of a cylindrical cavity resonator, coupled to a reservoir of the ultrasonic generator, located in the shielding enclosure. The technological scheme of milk pasteurization in the developed electric pasteurizer comprises the steps of: supplying milk into the cavity, dielectric heating milk in a cylindrical cavity; the heating of milk due to the impact of the regional flow of electromagnetic field of microwave at its end from the cavity to the reservoir of the ultrasonic generator; cavitational heating milk in the tank of the ultrasonic generator; repeatedly pumping milk with a pump on the milk line; the bactericidal effect of ultraviolet rays on the flow of milk through the milk line; drain the milk in aseptic packaging. The study the dynamics of heating milk by combined effect of physical factors such as ultrasonic vibration and electromagnetic field of microwave, showed that the increase in temperature was over 200 ... 240ºC with 47 ... 48ºC. The study of microbiological parameters of bacterial contamination of milk with 5,1 * 106 KFU/cm3 showed that during the disinfection of milk by combined action of physical factors the total bacterial count (TBC) decreased to 100,000 KFU/cm3.