Increasing the life of steel ladle linings at the Cherepovets Metallurgical Factory

Conclusions A 4-stage lining was developed and introduced at the Cherepovets Metallurgical Factory for 300 ton steel ladles.As a result of introducing this lining and improving the quality of the brick the life of the ladle increased by 31% compared with that achieved in 1968.To ensure uniform resistance in the 4-stage lining over the height of the structure tests were made with a lining using semisilica brick based on Latnensk clay and Ovruch pyrophyllites in the upper and central belts of the structure. The use of the semisilica brick in place of the KShU-37 brick manufactured by the Borovich Refractories Combine increases the resistance of the lining in the ladles, and reduces the refractories consumption per ton of steel.Translated from Ogneupory, No. 4, pp. 22–25, April, 1971.