Process for making steel from direct-reduced iron

Details Process for making steel from direct-reduced iron Process for making steel from direct-reduced iron

1982-10-15

1984-03-13

Andrews, M. J.

Specialized metallurgical processes, compositions for use therei

Processes

Electrothermic processes

75 38, 75 46, C21C 528, C21C 552

Patent

active

044365519

ABSTRACT:
In a steelmaking process wherein direct-reduced iron is manufactured in a reducing furnace and smelted in an electric furnace or a converter, a method is disclosed in which a heating furnace is provided at the lower end of a hood connected so as to enclose the product outlet of the reducing furnace. In one embodiment, a screen is provided within the hood for classifying the reduced material discharged from the product outlet of the reducing furnace into reduced iron and undersized particles, the undersized particles being removed for recycling. The reduced iron is charged into the heating furnace and melted, and is taken out as molten pig iron by a ladle. The molten pig iron within the ladle is charged into the electric furnace by manipulating a crane used to transport the ladle.

REFERENCES:
patent: 2045639 (1936-06-01), Eulenstein et al.
patent: 4002465 (1977-01-01), Brusa
patent: 4304597 (1981-12-01), Keran et al.

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