Method of, and arrangement for, reducing oxide-containing fine-p

Details Method of, and arrangement for, reducing oxide-containing fine-p Method of, and arrangement for, reducing oxide-containing fine-p

1983-01-05

1985-05-21

Rosenberg, Peter D.

Specialized metallurgical processes, compositions for use therei

Processes

Electrothermic processes

75 11, 75 65R, 75 93R, C21C 552, C22B 400

Patent

active

045184178

ABSTRACT:
In a method of reducing oxide-containing fine-particle ores, the ore particles are melted and reduced in a rotationally symmetric melting vessel in the presence of solid, liquid or gaseous carbon carriers by the action of a plasma jet of a plasma burner. At least part of the ore particles to be reduced are introduced through charging openings in the side wall of the vessel and are set in a cyclonic rotational movement. The plasma jet of the plasma burner is generated within the rotating particle stream. An arrangement for carrying out the method comprises a refractorily lined melting vessel having a rotationally symmetric inner space and including charging openings for the addition of oxide-containing ore particles and fluxing agents. There are openings for solid, liquid or gaseous carbon carriers and other fluxes, and at least one plasma burner. In the side wall of the melting vessel charging lances are arranged, which are directed into the space between the side wall of the melting vessel and its central axis.

REFERENCES:
patent: 1847527 (1926-07-01), Greene
patent: 3422206 (1969-01-01), Baker
patent: 3843351 (1974-10-01), Smith
patent: 3862834 (1975-01-01), von Waclawiczek
patent: 3893845 (1975-07-01), Mahaffey
patent: 3900311 (1975-08-01), Nilles
patent: 3917479 (1975-11-01), Sayce
patent: 4002466 (1977-01-01), MacRae et al.
patent: 4298377 (1981-11-01), Szekely

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