Application and Deveopment of Bottom Blowing Stirring Technology to EAF

The development of electric arc furnace （EAF） short process steelmaking is an important way for the iron and steel industry to realize the goal of "double carbon". In recent years， the modern EAF technology has been developing rapidly， and the bottom-blowing stirring technology of EAF is also progressing and being promoted， which makes an important contribution to the high efficiency and energy saving in production with EAF. This paper summarizes the mechanism， process characteristics， system composition， gas type， bottom blowing element type and process arrangement of the electric arc furnace， and summarizes the application of the bottom blowing technology. Simulation calculations shows that the flow rate of molten steel is obviously low in the area far away from the bottom blowing device. By arranging the bottom blowingdevice and optimizing the volume of bottom blowing gas in conjunction with the furnace characteristics， it is possible to effectively enhance the dynamic conditions of the molten pool， facili