Apparatus for injecting gas into a vessel

摘要

An apparatus for injecting particulate and/or gaseous material into a metallurgical vessel is disclosed. The apparatus comprises a duct (31) through which to inject the material, inner and outer water inflow and outflow passages (45, 46) extending through a wall of the duct and an annular duct tip (36) disposed at the forward end of the duct. The duct tip (36) is of annular formation and comprised of an annular inner end component (61), an annular outer end component (62), and an annular central component (63) located between the inner land outer components. The duct tip (36) is also comprised of a plurality of radially extending dividers to divide a space between the outer end component and the central component into discrete radial passages (64) to serve as said internal water flow passages of the tip