Device for steel blowing in the ladle

摘要

The invention relates to ferrous metallurgy. A device for steel blowing in the ladle contains pipes for supplying of the neutral gas into the ladle, protected from the influence of liquid metal by a heat-resistant barrel shell, at that on the pipes a head with butt-end skew nozzles is fixed by the means of adapting pipes, which quantity is chosen within the range of 3-9 items, at that the angle of their slope to the vertical is of = 7-45°, and in the distance of Hfrom the butt-end blowing nozzles, which is determined depending on the metal mass in the ladle, there are two lateral blowing nozzles, located on the diametrally opposite pipe sides, with the independent, from the butt-end nozzles and one from other, air-blast supply, at that the section of both lateral and butt-end blowing nozzles corresponds to the section of Laval nozzle. The technical result is decreasing of time of the complete blending of metal in the ladle due to the acceleration and greater turbulization of hydrodynamic currents in the ladle, and also minimization of "stagnant zones".