Energy Saving and Corrosion Control by Heat Recycling in Re-baking Process of Graphite Electrode Manufacturing

Abstract

Abstract Re-baking is an excessively economical phase in the graphite electrode and anodes manufacturing industries, these electrodes and anodes are very important for the global aluminium and steel sectors. The creation of graphite electrodes which are extensively utilized in electric arc furnaces for the production of steel, involves a crucial procedure called re-baking. However, high-temperature technique is an energy-intensive process that results in significant heat loss, raising operational costs and harming the environment. To address the problems of corrosion control and energy saving, this study examines the use of heat recycling techniques in the re-baking process for producing graphite electrodes. This strategy analyzes potential ways to increase the energy efficiency of an active oil-fired re-baking furnace. Significant increases in the heat transfer rate of 19.56% as per data collection and investigation and the combustion air volume and temperature rise by 25.49% and66.67%. This research identified chances to save energy 26.08% of power and 40% of oil saving per hour.