Specialized metallurgical processes – compositions for use therei – Processes – Electrothermic processes
Patent
1998-08-11
1999-12-21
Willis, Prince
Specialized metallurgical processes, compositions for use therei
Processes
Electrothermic processes
75581, 266156, 266901, C21B 1312, C21B 1314
Patent
active
060043695
ABSTRACT:
The invention relates to a method to produce steel from a ferrous material, by using one furnace divided into, at least, two vessels which are connected to each other at least by ducts for the off-gases and ducts for the melted metal. The vessels have a growing capacity starting from the first one; the material to be cast is divided into a first charge for the first vessel and a second charge for, at lesast, a second vessel of the furnace, the charge of the material in the first vessel of the furnace is melted using electric energy and/or combustion energy; the off-gases from the first vessel of the furnace are sent to the second vessel of the furnace in order to heat the charge of material in said second vessel, and the off-gases in the second vessel are sent to the first vessel to heat the material in this first vessel; the metal melted in the first vessel is poured in the second vessel of the furnace in order to contribute with its own thermal energy and with combustion energy to the melting of the material charged in the, at least, second vessel; the metal melted in the second vessel is poured for the use.
REFERENCES:
patent: 5541952 (1996-07-01), Genge et al.
McGuthry-Banks Tima
Willis Prince
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