Abstract: In the 1990s,some foreign electric furnaces have adopted the porous brick bottom blowing stirring technology,which blowing inert gas into furnace to stir molten steel,increasing yields of manganese,titanium,vanadium and other alloy elements and improving dephosphorization and desulfurization effects.In recent years, with the development of refractory material technology in China,the porous brick bottom blowing stirring technology has been widely used in electric furnace.Using this technology can effectively shorten the smelting time and greatly reduce the cost.

Key words: Electric furnace, Porous brick, Bottom blowing, Stirrin