Drill padding maintaining method for steel ladle working lining

Abstract

The invention discloses a drill padding maintaining method for a steel ladle working lining. A steel ladle is cooled, the impurities on the inner wall are cleaned thoroughly, bricks are drilled out through a cylindrical hollow drill bit, the hole diameter ranges from 30 mm to 80 mm, the drilling depth ranges from 5 cm to 10 cm, the interior is cleaned thoroughly, the interior is filled with cylindrical bricks with the same diameter and length until an original working plane is flush with the stacked brick level, the surrounding gap is filled with fire clay, the cement water is evaporated through the waste heat of an original working lining or the high temperature at which the molten steel is contained again, and the padding is combined with the original working lining. The maintaining method is convenient to carry out, practical, simple, low in cost and suitable for maintaining steel ladles with the wrapped wall or the slag line working line as magnesia carbon bricks or aluminum magnesium carbon bricks and maintaining the steel ladles of aluminum silicon carbide carbon bricks.

Description

technical field [0001] The invention relates to a drilling and filling maintenance method for a ladle working lining, and belongs to the technical field of maintenance methods for iron and steel metallurgical ladle linings. Background technique [0002] Severe local erosion or melting holes often occur in the ladle during use, resulting in the end of the life of the ladle or the need for maintenance. At present, it is generally used to excavate or dismantle from the upper part to the problematic part, and then re-build. However, during excavation and repair, it is easy for the repair brick to fall again, causing an accident; if it is demolished and repaired, it needs to be dismantled into a "V" shape from the upper part to the problem part. Very small, according to this kind of repair method leads to the increase of input cost. Contents of the invention [0003] In order to overcome the above problems, the object of the present invention is to provide a maintenance method...

AI Technical Summary

Problems solved by technology

[0002] Severe local erosion or melting holes often occur in the ladle during use, resulting in the end of the life of the ladle or the need for maintenance. At present, it is generally used to excavate or dismantle from the upper part to the problematic part, and then rebuild the masonry

However, during excavation and repair, it is easy for the repair brick to fall again, causing an accident; if it is demolished and repaired, it needs to be dismantled into a "V" shape from the upper part to the problem part. Very small, according to this repair method leads to increased input costs