Furnace for the direct reduction of iron oxides

Details Furnace for the direct reduction of iron oxides Furnace for the direct reduction of iron oxides

1999-12-10

2000-12-19

Ferensic, Denise L.

Heating

Shaft type

Having combustion products generated in or fed to shaft

75490, 75495, C21B 1102

Patent

active

061620505

ABSTRACT:
Gravitational type furnace for the direct reduction of mineral iron comprising a median reaction zone (14) in which the reactions to reduce the mineral iron occur, means (11) to feed the mineral iron to said reaction zone (14), means (18) to introduce a mixture of reducing gas into said reaction zone (14) and means (15) to discharge the reduced metal iron, said discharge means comprising at least two extremities (15a-15c), shaped like a cone or a truncated cone, with the taper facing downwards, each of which being provided with a corresponding lower aperture (16a-16c) through which said reduced metal iron can be selectively discharged in a controlled and independent manner.

REFERENCES:
patent: 2862808 (1958-12-01), De Jahn
patent: 3749386 (1973-07-01), Beggs et al.
patent: 4046557 (1977-09-01), Beggs
patent: 4252299 (1981-02-01), LoBue
patent: 4674198 (1987-06-01), Huttlin
patent: 4826429 (1989-05-01), Niems
patent: 5296015 (1994-03-01), Becerra-Novoa

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