Method and apparatus for the melt reduction of iron oxides

Details Method and apparatus for the melt reduction of iron oxides Method and apparatus for the melt reduction of iron oxides

1976-03-31

1978-03-14

Envall, Jr., R. N.

13 11, F27D 300

Patent

active

040791858

ABSTRACT:
For the melt reduction of iron oxides, arcs are formed between at least three arcing electrodes in an iron melt, the electrodes being symmetrically positioned about a common vertical axis. The arcs are powered by direct current with the electrodes being cathodic and the melt anodic, and the electrodes are interspaced so closely together that the arcs, due to the direct current powering, converge and form a common focal spot at the electrodes' axis, on the melt, the spot remaining stationary and with any slag on the melt blown away so that the spot is formed by bare metal. Iron oxide material and carbonaceous material, in fine form, is fed downwardly to this spot with the reaction between the oxides and carbon occurring practically immediately.

REFERENCES:
patent: 2744944 (1956-05-01), Striplin, Jr. et al.
patent: 3610795 (1971-10-01), Antoine
patent: 3789127 (1974-01-01), Bowman
patent: 3940551 (1976-02-01), Ling et al.

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