FIELD: metallurgy, namely fluid injection into metallurgical reservoir.
SUBSTANCE: apparatus includes first refractory body and second refractory body mutually joined by matching. First body is made of refractory material having less permeability for fluid than material of second body. First and second bodies have surfaces for contact with melt metal and ducts passing from unit for supplying fluid to surface contacting with melt metal. Percentage hydraulic resistance of ducts in second refractory body exceeds that of ducts in first refractory body. Ducts of first body are formed separately from ducts of second refractory body in the form of slits or openings.
EFFECT: improved reliability of injecting fluid into metallurgical reservoir.
9 cl, 2 dwg
