Process of producing sponge iron by a direct reduction of iron o

Details Process of producing sponge iron by a direct reduction of iron o Process of producing sponge iron by a direct reduction of iron o

1982-09-14

1984-09-04

Andrews, M. J.

Specialized metallurgical processes, compositions for use therei

Processes

Electrothermic processes

266173, C21B 1308

Patent

active

044695098

ABSTRACT:
In the operation of the rotary kiln provided at its charging end with a central burner, solid reducing agents having a high content of volatile constituents are used and the charge and the gas atmosphere are conducted in cocurrent streams. To avoid a high heat load per unit of volume in the heating-up zone and yet to increase the heating-up rate, a solid carbonaceous reducing agent having a high content of volatile constituents is charged together with the iron oxide-containing material into the charging end of the rotary kiln, oxygen-containing gases are blown through nozzle blocks into the free gas space and into the charge in the heating-up zone, and oxygen-containing gases are blown through nozzle blocks into the free kiln space in the reducing zone.

REFERENCES:
patent: 3881916 (1975-05-01), Serbent et al.
patent: 3890138 (1975-06-01), Hockin

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