Safe steel ladle lining and building method thereof

Abstract

The invention relates to a safe steel ladle lining. The safe steel ladle is characterized in that the safe steel ladle lining comprises a steel ladle body, a heat-insulating layer, a permanent lining, a safe lining and a working lining; the heat-insulating layer, the permanent lining, the safe lining and the working lining are sequentially arranged on the steel ladle body from outside to inside; the safe lining is formed by staggered arrangement of building gaps of magnesium-carbon brick layers or aluminum-magnesium-carbon brisk layers in a vertical direction, and the thickness of the safe lining is 20-100mm; the working lining is built by magnesium-carbon bricks or aluminum-magnesium-carbon bricks, and the thickness of the working lining is 100-200mm. Compared with the prior art, the safe steel ladle lining has the advantages that construction period for steel-ladle building is shortened; experienced professional ladle judgers are not needed for judging steel ladles, and any person can judge the steel ladles, so that safety of the steel ladles is improved and leakage of the steel ladles is avoided; consumption on fireproof materials of the steel ladles is reduced, so that cost is saved; the safe lining can be used for a long time, use quantity of the magnesium-carbon bricks or the aluminum-magnesium-carbon bricks of the working lining is reduced, and service life of the steel ladles is prolonged.

Description

Technical field [0001] The invention relates to the technical field of steel ladle, in particular to a safety steel ladle inner lining and a method for laying the same. Background technique [0002] The ladle is one of the important equipment for steelmaking production. The working conditions of the ladle are extremely harsh. The inner lining bears the static pressure of high-temperature molten steel and the violent impact of steel tapping, and withstands sharp mechanical erosion, chemical erosion and temperature chilling and heating. Melt damage occurs to the inner lining of the ladle, which may cause ladle leakage accidents in severe cases, and bring hidden dangers to safety production. [0003] Conventional ladle is provided with thermal insulation layer, permanent lining and working lining in order from the outer shell. Since the permanent layer ladle castable cannot resist the corrosion of molten steel, it is very easy to cause the slag line to penetrate the ladle when the sla...

AI Technical Summary

Problems solved by technology

Melt damage to the inner lining of the steel ladle, and in severe cases, cause ladle leakage accidents and bring hidden dangers to safe production

[0003] Conventional ladles are provided with heat insulating layer, permanent lining and working lining sequentially from the shell to the inside. Since the castable of the permanent layer ladle cannot resist the erosion of molten steel well, it is very easy to cause the slag line to penetrate the ladle when the ladle bricks of the working layer of the slag line are eroded. Therefore, in order to prevent the occurrence of ladle leakage accidents, the working lining is often removed when the working lining still has a certain thickness, resulting in great waste

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