CAST IRON LADLE Russian patent published in 2023 - IPC B22D41/02 

FIELD: metallurgy.

SUBSTANCE: cast iron ladle contains a steel casing (1), reinforcement (2) and working (3) lining layers. In the upper part of the ladle, the lining (4) contains one reinforcing layer less than in the lower part of the cast iron ladle, and the working layer of the lining of the upper part of the ladle is located on at least two layers of the lining of the lower part of the ladle. An additional refractory layer (5) is applied between the reinforcing layer of the lining and the casing, and the ratio of the height of the upper part of the ladle, containing one less reinforcing layer, to the lower part of the ladle, containing, accordingly, one more reinforcing layer, is 1.2-1.5. The diameter of the working space of the ladle in its upper part is at least 130 mm larger than the average diameter of the lower part of the ladle, while the ratio of the thickness of the lining of the lower part of the ladle to the thickness of the lining of the upper part of the ladle is 1.1-1.3.

EFFECT: increase in the useful volume of a cast iron ladle while maintaining reliability.

10 cl, 2 dwg, 2 ex