RU2020108308A - METHOD FOR PRODUCING VANADIUM CAST IRON FROM IRON AND NADIUM RAW MATERIALS - Google Patents

Claims (1)

A method for smelting vanadium cast iron in an EAF by direct reduction of metals from oxide-containing materials, including metallization by direct reduction of metal oxides and melting the resulting product, in which oxide-containing materials in a mixture with a solid reducing agent are continuously fed through the cavity of a hollow electrode into the zone of an electric arc furnace located between the bottom and hollow electrodes, and the direct reduction of metal oxides and their melting are carried out due to the Lenz-Joule heat released in the interelectrode space of an electric arc furnace containing a bottom electrode and at least one hollow electrode, while oxide-containing materials and a solid reductant are fed into the electrode cavity in a rounded or granular state, characterized in that iron-vanadium concentrate with a vanadium concentration of 0.1 ÷ 1.7% is loaded into the mixing unit as oxide-containing materials, crushed low sulfur is loaded as a solid reductant hard coal, as well as crushed limestone to obtain a slag basicity of more than 1.4, the resulting mixture from the mixing unit is fed into the cavity of the hollow electrode.