Iron reduction apparatus

Details Iron reduction apparatus Iron reduction apparatus

1989-07-27

1990-12-18

Andrews, Melvyn J.

Metallurgical apparatus

Means for treating ores or for extracting metals

By means applying heat to work, e.g., furnace

266186, 75443, F27B 916

Patent

active

049781065

ABSTRACT:
A method and apparatus for reducing iron in a steelmaking process including a closed thermal transfer system in which a flow of process ingredients including iron ore is directed in a descending, preferably spiral path defined by a downwardly spiraling pipe with the process ingredients moving in countercurrent flow relation to a continuous flow of reducing gases ascending within the pipe to reduce the process ingredients to a continuously flowing stream of molten iron and slag which moves downwardly in the spiral pipe and into a hearth furnace.

REFERENCES:
patent: 748561 (1903-12-01), Riveroll
patent: 1611098 (1926-12-01), Borner
patent: 1767779 (1930-06-01), Trent
patent: 1799643 (1931-04-01), Rogers
patent: 1895284 (1933-01-01), Hay
patent: 3164380 (1965-01-01), Kus
patent: 3556775 (1971-01-01), Kuratomi
patent: 3658310 (1972-04-01), Spooner et al.
patent: 4324391 (1982-04-01), Yamaguchi et al.
patent: 4670049 (1987-06-01), Kelmar

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