Process of controlling Fe.sup.++ content of sintered iron ore

Details Process of controlling Fe.sup.++ content of sintered iron ore Process of controlling Fe.sup.++ content of sintered iron ore

1975-12-03

1977-09-27

Rutledge, L. Dewayne

Specialized metallurgical processes, compositions for use therei

Processes

Electrothermic processes

75 3, C22B 116

Patent

active

040509249

ABSTRACT:
A process for controlling the quality of sintered iron ore in which the Fe.sup.+ content of the sintered or is regulated by controlling the recycled-fines feed rate. The recycled-fines feed rate, determined by a prior art recycled-fines balance controller, is modified by a desired fines withdrawal rate generated in an Fe.sup.+ content controller as the difference between the actual Fe.sup.+ content of the sintered ore and a desired content. In a preferred form, the difference between the recycled-fines feed rate and the desired fines withdrawal rate is also applied to the Fe.sup.+ content controller.

REFERENCES:
patent: 2965265 (1960-12-01), Schuerger et al.
patent: 3153587 (1964-10-01), Schuerger
patent: 3330644 (1967-07-01), Haussig
patent: 3642465 (1972-02-01), Sie
patent: 3647417 (1972-03-01), Wetzel et al.
Herman, A., et al.; Metallurgical Reports CNRM, Nov. 16, 1968, pp. 11-18.
Cappel, F.; Stah and Eisen, vol. 84, pp. 1304-1313, TS300S-7, (1964).

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