METHOD OF PRODUCTION OF METALS AND METAL ALLOYS Russian patent published in 2005 - IPC

FIELD: metallurgy; methods of production of metals and metal alloys.

SUBSTANCE: the invention is pertaining to the field metallurgy, in particular, to the methods of production of metals and metal alloys in an electric furnace allowing to reduce power consumption and to accelerate realization of the chemical reactions, which are necessary for the process. The method of production of a metal out of containing the metal raw material in the electric furnace includes formation in the furnace of a molten bath having a metal layer and a slag layer above the metal layer, feeding of the electric power in the furnace with conversion of the electric power into a heat energy. In the molten bath through one or more than one a nozzle/tuyere for a solid raw introduction introduce a gas-carrier gas and a solid containing carbonic material. Activate slopping of the molten material from the molten bath in the form of bursts, drips and sprays into a space above a nominally quiet surface of the molten bath and form a transitional zone. Introduce an oxygen-bearing gas into the furnace through one or more than one nozzle/tuyere so, that this gas goes in the direction of the transitional zone and penetrates it, and the stream of the oxygen-containing gas deflected the bursts, drips and sprays of the melted material so, that actually the transitional zone spreads upward around the low part of one or more than one nozzle/tuyere, and around the end of one or more than one nozzle/ tuyere a continuous gaseous "free" space was formed. Then burn the reaction gases, which are withdrawn from the molten bath for an additional meeting the needs of the process in a heat energy. Slopping upward into the transitional zone with the following fall down of the bursts, drips and sprays of the melted material facilitates a heat transfer into the molten bath and the transitional zone minimizes the losses of the from the furnace through the side walls being in contact with the transitional zone.

EFFECT: the improved method of metals and alloys production in an electrical furnace ensures accelerated realization of chemical reactions necessary for the process.

8 cl, 1 dwg, 2 ex