Verfahren zum Herstellen von Stahl aus Schrott

摘要

In a process for the production of steel from scrap (29) by fusion of the scrap (29) in an electric arc furnace with a feed of oxygen and inert gas, lime (27) and coal (28) and then scrap (29) are charged into a liquid bottom (26) of molten steel. In order to allow low power consumption coupled with low investment costs, high operational reliability and low maintenance effort, at least one gas feedline (19) is introduced before the charging of the scrap (29) from one furnace side, the end (31) of which gas feedline projects as far as the central region of the furnace interior (5) of the electric arc furnace, and inert gas is initially fed through this gas feedline (19), and oxygen or an oxygen-containing gas is introduced below the scrap charge only after the start of the fusion process.