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.