FIELD: metallurgy; metallization processes and electric steelmaking.
SUBSTANCE: vanadium-containing ore material is metallized in metallization furnace where hot reducing gases delivered from gasifier with liquid bath are used as reductant. Gasifier is simultaneously used for production of semi-product and slag which are also supplied to electric furnace together with material of metallization furnace for further melting. Excessive heat of hot reducing gas from gasifier and hot export gas of metallization furnace is used in parallel in two recuperators at recuperation coefficient no less than 0.7 for heating the blast of lower lances and oxygen of upper lances.
EFFECT: low cost of process; reduction of toxic effluents.
1 dwg
| Title | Year | Author | Number |
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