ELECTRIC ARC FURNACE FOR STEEL PRODUCTION, STEEL PRODUCTION FROM SCRAP, AND/OR FROM SPONGE IRON, AND/OR FROM BLAST-FURNACE CAST IRON IN ELECTRIC ARC FURNACE, AND METHOD FOR STEEL PRODUCTION FROM SCRAP IN ELECTRIC ARC FURNACE

摘要

In an electric arc furnace arrangement for producing steel by melting scrap (27), in particular scrap iron, and/or sponge iron and/or pig iron as well as additives in a furnace vessel (1), at least one graphite electrode (11), movable in its longitudinal direction, projects into the furnace vessel and an electric arc (26) is struck between the graphite electrode (11) and the charge (27). To achieve a particularly high energy input - the graphite electrode (11) projects into a lower part (8) of the furnace vessel (1) from the side and - in the region of the graphite electrode (11), the lower part (8) has a widened portion (8, 9) projecting radially outwards relative to the upper part (10) (Fig. 1).