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 rap-idly,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,pro-cess 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 blowing device and optimizing the volume of bottom blowing gas in conjunction with the furnace characteristics,it is possible to ef-fectively enhance the dynamic conditions of the molten pool,facilitate the mass transfer of elements within the molten steel,thereby achieving the goal of reducing energy and raw material consumption,and enhancing production efficiency.Therefore,it can be inferred that conducting research,combining different techniques such as blowing,power supply and powder injection,formulating bottom blowing process system according to the characteristics of different new furnaces,as well as realizing intelligent bottom blowing are important directions for the development of short process steelmaking of modern EAF.
EAFShort Process SteelmakingBottom Blowing StirringMathematical SimulationStirring Energy
万方数据
维普
