METHOD OF DIRECT REDUCTION OF MATERIALS CONTAINING METAL OXIDES TO PRODUCE MELT METAL AND DEVICE FOR CARRYING OUT METHOD Russian patent published in 2017 - IPC C21B13/10 

FIELD: metallurgy.

SUBSTANCE: invention refers to metallurgy, in particular to the methods of producing metal by direct metal reduction from oxide-containing materials with a solid reducing agent. Metallization is performed by direct reduction of metal oxides and melting the resulting product. Oxide-containing materials in a mixture with a solid reducing agent are continuously fed through a cavity of hollow electrode into a zone of electric arc furnace located between the bottom and the hollow electrodes, and the direct reduction of metal oxides and their melting are carried out by means of Lenz-Joule heat generated in the interelectrode space of electric arc furnace comprising the bottom electrode and at least one hollow electrode mounted vertically with the possibility of lowering connected to a current source and whose inner passage is formed expanding downwardly. Oxide-containing materials and the solid reducing agent are fed into the electrode cavity in the rounded or granular state and maintained in it at a height of from 1 to 10 diameters in the electrode cavity depending on the average granules diameter.

EFFECT: invention is directed to increase the intensity of the reduction process in the high temperature zone.

6 cl, 1 dwg