Development of the process of electric steel production and methods for improving the technical-and-economic indices of electric arc furnaces

The structure of the metal losses during melting of a low-carbon semiproduct in EAF is analyzed. It is shown that a further increase in the capacity of a modern superpower EAF can degrade the technical-and-economic indices of its operation. The increase in the metal losses in melting in EAF is caused by a high oxygen flow rate and a number of other technological factors. The rational methods of increasing the technical-and-economic indices of EAF are a decrease in the metal losses in melting and processing of the semiproduct, a decrease in the primary energy consumption, and the recycling of dust and waste slags.