Method of mounting and fixing purging plug brick on outer upper portion of ladle

Abstract

The invention relates to a method for mounting and fixing a purging plug brick on outer upper portion of a ladle. The method includes the steps of firstly, fixing a spiral slideway on the inner side of a reference ring of the purging plug brick, fixing a bolt at the bottom of the purging plug brick, sleeving a screwing slider on the outer side of the bolt, and inserting the top end of an automatic torque wrench to the screwing slider; secondly, starting the power of the automatic torque wrench, and allowing rotation torque to drive the screwing slider to be screwed into the purging plug brick along the spiral slideway; thirdly, demounting a nut and the automatic torque wrench, embedding a support brick with ash into a groove of the screwing slider, mounting support iron, a cover plate and the nut, and tightening the nut and the bolt to fix the cover plate and the support iron. The method has the advantages that due to the fact that mounting is performed through the automatic torque wrench, accurate mounting of the purging plug brick is achieved, the purging plug brick defects such as air channels, eccentricity, position difference, large seam and twin brick raising during purging plug brick mounting are overcome, the purging plug brick can be replaced conveniently, and ladle leakage accidents caused by purging plug brick mounting mistakes are avoided.

Description

technical field [0001] The invention relates to the technical field of steelmaking, in particular to a method for installing and fixing air-permeable bricks on the outside of a ladle. Background technique [0002] At present, the main way to install the air bricks on the outside and inside of the ladle used in the steelmaking field is to use the bottom of the ladle to blow argon to obtain heat. Although this method is a mature technology, because the air bricks are very easy to install during the installation Defects such as air passage, eccentricity, position difference, large seam, and brick jacking have resulted in the problem of leaking steel in the ventilating brick, and at the same time reduced the service life of the ventilating brick and brought certain economic losses to the enterprise. Contents of the invention [0003] The object of the present invention is to provide a method for installing and fixing air-permeable bricks on the outside of the ladle to prevent ...

AI Technical Summary

Problems solved by technology

[0002] At present, the main way to install the air bricks on the outside and inside of the ladle used in the steelmaking field is to use argon blowing at the bottom of the ladle to obtain heat. Although this method is a mature technology, it is very easy to Defects such as air passage, eccentricity, position difference, large seam, and brick jacking caused the problem of leaking steel of the ventilating brick, and at the same time reduced the service life of the ventilating brick and brought certain economic losses to the enterprise

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