Improvement of EAF efficiency through an integrated control of scrap melting and slag characteristics

Abstract

Several innovations have been introduced into the EAF system during the last decades. The improvement
of energy efficiency and production rates are probably related to a correct integration of the different systems
and to a correct design of the scrap charges as a function of the production rate, of the metal losses
and of the energy consumption that are considered an optimal compromise to fulfil a correct economic
balance for the melting, decarburation and dephosphoration operation. In order to achieve the aim of an
energetic advanced model has been developed through the integration of the energy model of electric and
chemical sources with the ones treating the metal bath oxidation and the foaming behaviour of the slags.