A new type of steel ladle and its edge repair method

Abstract

The invention provides a novel steel ladle and a covering edge building method thereof. The novel steel ladle comprises a steel ladle shell, a steel ladle castable permanent layer arranged on the inner side of the steel ladle shell, and a slag line magnesia carbon brick working layer arranged on the inner side of the steel ladle castable permanent layer. Brick pressing plates are evenly and fixedly arranged in the position, above the slag line magnesia carbon brick working layer, of the inner side wall of the top end of a steel ladle port of the steel ladle shell in the circumferential direction of the steel ladle port. The outer edge of the slag line magnesia carbon brick working layer protrudes from the outer edges of the brick pressing plates. A sealing castable layer is arranged on the brick pressing plates and the slag line magnesia carbon brick working layer and used for covering the brick pressing plates and the slag line magnesia carbon brick working layer. According to the novel steel ladle and the covering edge building method thereof, the inverted-L shaped brick pressing plates are arranged at the steel ladle port of the inner side wall of the steel ladle shell and located above the slag line magnesia carbon brick working layer, the compressing effect of slag line magnesia carbon bricks is improved, trapezoidal magnesia carbon bricks are arranged between the brick pressing plates and the slag line magnesia carbon bricks, the firmness of the slag line magnesia carbon bricks is further improved, looseness of the sealing port and the slag line bricks is avoided, and the safety of the steel ladle is improved while the refining requirement is met.

Description

technical field [0001] The invention belongs to the technical field of steelmaking, and in particular relates to a novel steel ladle and a method for repairing the edge of the ladle. Background technique [0002] Ladle is an important high-temperature metallurgical container for iron and steel enterprises. It is used to store high-temperature molten steel and plays a vital role in the safe production and process control of steelmaking plants. The ladle ladle is used to compress the ladle slag line brick under it to prevent the ladle slag line brick from loosening or falling off. During the use of the ladle, due to the splashing of steel slag on the edge of the ladle during the refining and smelting process and the pouring of slag after continuous casting, it is inevitable to hang residual steel residue on the ladle mouth. According to the processing requirements, the steel slag along the ladle needs to be cleaned. When the steel slag (commonly known as the mouth) is hung wi...

AI Technical Summary

Problems solved by technology

After sealing the edge of the ladle with a flat brick pressing board, it is easy to warp up due to repeated heating and expansion during use, resulting in failure of the brick pressing function; after sealing the edge of the ladle with a brick pressing board with a slope and special-shaped bricks, although it can solve the problem The problem of thermal expansion, but the loosening or falling off of any one of the special-shaped bricks will cause the loosening of the entire ring of sealing bricks, which poses a great safety hazard

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