OXYGEN LANCE FOR METAL MOLTEN BATH BLOWING THROUGH Russian patent published in 1996 - IPC

FIELD: ferrous metallurgy, production of water cooling oxygen lances for metal molten bath blowing trough from top in oxygen converters. SUBSTANCE: oxygen lance has concentrically located pipes for feeding and removal of cooling water, pipes for oxygen delivery, butt head with nozzles for molten bath blowing through and spaced from oxygen lance butt two rows of nozzles for carbon oxide after-burning, that are alternatively oriented in respect to each other in projection on horizontal plane and made in one-piece-turned bodies in the form of two cylindrical input and output sections. Output sections of upper and lower rows of nozzles are shifted in direction to each other by value equal to 0.1 - 0.9 of input section diameter with ratio of cross-section areas of input and output sections of nozzles equal to 2 - 10. EFFECT: improved design. 7 dwg, 1 tbl