METHOD FOR PRODUCTION OF IRON-CARBON PRODUCT AND DEVICE FOR ITS EMBODIMENT Russian patent published in 1997 - IPC

FIELD: metallurgy, particular, meeting of iron-carbon intermediate product. SUBSTANCE: adjacent to end of liquid-phase reduction furnace with liquid slag bath is scrap-melting shaft furnace which is connected with furnace by hole. Upper edge of hole is located above the level of bottom of melting furnace, and ratio of area of cross-section of furnace shaft to area of bottom of melting vessel is 0.3-0.65. Steel scrap is loaded into shaft furnace to form column immersed in slag in end of melting furnace. Upper end of column is located above the level of bubbled slag. Column of scrap is heated by process gases withdrawn from slag bath, and melted. Initial iron-containing raw material amounts to 30-50% of the amount of steel scrap. EFFECT: higher efficiency. 3 cl, 2 dwg