METHOD AND APPARATUS FOR CARBOTHERMAL REDUCTION OF ALUMINIUM OXIDES IN HIGH-TEMPERATURE BLAST FURNACE Russian patent published in 1997 - IPC

Abstract RU 2086656 C1

FIELD: metallurgy. SUBSTANCE: blast furnace is charged from above with alumina and lump solid carbon-containing fuel. From below, heated oxygen-rich air with added steam, gas fuel and/or mazut, and carbon dust fuel is blown in above level of liquid smelting products. A part of blast with additives is blown in into metal fusion through low-set jets. Here also a part of charge materials are loaded by means of loading unit for on-line correction of heat state of furnace and chemical composition of smelting products. EFFECT: enhanced efficiency of process. 2 cl, 1 dwg, 2 tbl

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RU 2 086 656 C1

Authors

Volovik Al'Bert Vladimirovich

Volovik Ol'Ga Al'Bertovna

Dolgonosova Irina Al'Bertovna

Dates

1997-08-10Published

1995-12-27Filed