Reaction Mechanism in EAF Steelmaking Process Based on Selective Oxidation, Bath Stirring and Furnace Body Heat Transfer

EAF steelmakingEAF steelmaking is characterized by complex charge structureStructure, vigorous chemical reaction, and intensive energy source. The existed disadvantages lead to the big difference of temperature and chemical composition in molten bath, and finally make it difficult for end point controlling. There is still a lack of research on reaction regularity and smelting mechanism in the EAF steelmakingEAF steelmaking process. In this paper, the EAF was divided into “furnace body area” and “molten bath area”. The characteristics of bath fluid flow, elements selective oxidationSelective oxidation, heat transferHeat transfer behavior in EAF steelmakingEAF steelmaking process based on bath stirringBath stirring and multiple input energy were explored and determined through thermodynamic calculation and thermal experiments. The results revealed the reaction mechanismReaction mechanism in the EAF steelmakingEAF steelmaking process based on selective oxidationSelective oxidation, bath stirringBath stirring, and furnace body heat transferFurnace body heat transfer. This research is expected to provide theoretical basis for energy savingEnergy saving and optimization, emission reduction, and green development of the EAF steelmakingEAF steelmaking process.