FIELD: metallurgy.
SUBSTANCE: invention concerns metallurgy field. Particularly it concerns direct receiving of iron-carbon alloys by means of plasma technology. Lump material is introduced into upper band of melting furnace in amount of 85-90% from total volume of furnace laboratory. Material is blown through by reducing plasma jets of indirect action plasmatrons. At forming of melt specified volume of iron-containing concentrate is fed by channel to the plasma reducing jet of additional plasmatron and then it is injected into melt so that feeding vector of concentrate crosses jet axis. Concentrate in transportation channel is cooled till the temperature not higher than 900°C. After finishing of specified concentrate volume feeding, thermal stress on melt is proceed by reducing plasma jets. Additional plasmatron is installed in side wall of furnace and nozzle section joins in brickwork channel to the discharge opening of concentrate feeding pipeline. Channel is implemented as enlarging in the direction of melting zone of furnace.
EFFECT: technology simplifying, reduction of investments and operating costs, increasing of specific output.
9 cl, 2 dwg, 1 ex
