Specialized metallurgical processes – compositions for use therei – Processes – Electrothermic processes
Patent
1976-05-25
1978-04-11
Satterfield, Walter R.
Specialized metallurgical processes, compositions for use therei
Processes
Electrothermic processes
75 44S, 75 65R, C21C 500
Patent
active
040837157
ABSTRACT:
Iron-containing materials are loaded into the top of a shaft furnace to form therein an upright column of the materials. A burner forms a flame above the floor of the furnace to heat the base of the column and thereby melt the materials at the base of the column into a liquefied-iron melt on the floor of the furnace and a layer of slag on the melt. In addition this flame formed by the burner forms a deposit in the furnace on which the column is supported. Slag is continuously withdrawn from the furnace at a location substantially level with the deposit and the melt is withdrawn from the furnace at a location below the layer of slag and is heated as it is withdrawn. This melt is withdrawn through an iron-drain conduit having an outlet end vertically positioned to be horizontally even with the lower surface of the slag and a refining vessel working inductively or by means of an electric arc may be provided in this outlet conduit for the continuous transformation of the liquefied iron into steel.
REFERENCES:
patent: 3788837 (1974-01-01), Geck et al.
patent: 3894864 (1975-07-01), Langhammer
patent: 3897243 (1975-07-01), Langhammer
patent: 3948641 (1976-04-01), Langhammer
patent: 3948642 (1976-04-01), Gross
patent: 3964897 (1976-06-01), Langhammer
patent: 3976472 (1976-08-01), Linder
patent: 3996044 (1976-12-01), Petritsch
Klockner-Werke AG
Satterfield Walter R.
Striker Michael J.
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