FIELD: metallurgy.
SUBSTANCE: device (10) for retaining and replacing replaceable pouring cup comprises means (50a, 50b, 50c) of clamping bearing surface of inner nozzle (12). Inner nozzle (12) comprises three support elements (30a, 30b, 30c), which are interfaced with means (50a, 50b, 50c). Each of elements (30a, 30b, 30c), protruding from side edges of plate of inner nozzle, comprises a support flange (34a, 34b, 34c) facing towards first contact surface (26) of plate of inner nozzle. Support elements are distributed around perimeter of plate so that their of orthogonal projections on plane parallel to first contact surface (26) form of triangle vertices. Means (50a, 50b, 50c) comprise three clamps, wherein corresponding centroids of orthogonal projections on mid plane section of clamping elements in their clamped position form of triangle vertices, and means (50a, 50b, 50c) are located perpendicular to first direction along first axis (X) between inlet (14) and outlet (28) holes.
EFFECT: providing tightness of contact between plates of inner nozzle and pouring cup and longer service life of refractory elements.
14 cl, 6 dwg
