Mathematical Modeling of Technological Regulations of Furnace Equipment for Carbon Graphite Electrode Production

The generalized mathematical model of physical fields, which describes the main technological divisions of producing electrode carbon-graphite products, has been refined in terms of considering the equation of the state of the loose medium and the turbulence of the flows of the working medium. Based on the generalized model, approaches to formulating mathematical models of such individual redistributions of electrode production as calcination of carbon-containing filler, pressing, firing, and graphitization of electrode blanks are shown. Using numerical modeling, resource- and energy-efficient technological regulations for the calcination of carbon-containing fillers in electrocalciners and firing of graphite products in a Riedhammer ring multi-chamber furnace were developed. It was established that the developed regulations for the start-up and operation of the electrocalciner for heat treatment of anthracite ensure the required quality of the final product and long-term operation of the equipment - more than 6 months. It is shown that the developed technological regulations for firing various graphite products in Riedhammer furnaces provide a 7–10% reduction in waste output and technogenic impact on the environment.