METAL DIRECT REDUCTION METHOD FROM DISPERSED RAW ORE MATERIAL METHOD AND APPARATUS FOR PERFORMING THE SAME Russian patent published in 2007 - IPC C21B13/12 

FIELD: coke-free metallurgy, namely production of continuously cast blank by reducing metals from metal containing oxide raw material by means of gaseous and dispersed reducing agents in plasma-chemical reactors.

SUBSTANCE: method comprises steps of preliminarily introducing partially reduced raw ore material with reducing agent to electric-arc furnace, through cavity arranged outside working electrode, onto surface of melt ore bath; discharging gaseous reaction products through cavity of working electrode and using them for preliminary reduction; compensating consumption of working electrode without interrupting process; in zone of electric arc burning creating axial magnetic field promoting uniform heating and reduction of charge while preventing fine particles discharging in such field by means of plasma; collecting ready product while crystallizing received metal and discharging it in the form of blank suitable for further processing.

EFFECT: lowered specific consumption of material of working electrode, possibility for using any gaseous reducing agent without hazard of clogging its inlet duct with coke, lowered consumption of reducing agent.

10 cl, 2 dwg, 1 tbl