Method for locally repairing bricked ladle working liner

Abstract

The invention discloses a method for locally repairing a bricked ladle working liner. The method comprises a step of slag line brick patch repair and a step of wall-wrapping brick patch repair. In the step of slag line brick patch repair, the damaged part is dismantled in the shape of an inverted triangle and then replaced by ladle bricks of the original material and shape after dismantling. In the step of wall-wrapping brick patch repair, the patch repair is performed by local transverse dismantling method in which a severely-damaged ladle brick and two bricks on the left and the right sides and concentric to the ladle brick are dismantled using a pneumatic pick, which are replaced by bricks of the original material and shape after dismantling. The method disclosed by the invention adopts the ladle bricks of the original material and shape, does not need much investment, prevents the whole ladle from being dismantled due to local severe damage, maintains the original service life of the ladle by means of patch repair, and reduces the cost of refractory material per ton steel. For a low-life ladle with a local damage, the whole ladle does not need to be out of service in advance or dismantled by means of patch repair, which can effectively reduce the labor intensity of workers, reduce the discharge of waste refractory materials and bring good environmental benefits.

Description

technical field [0001] The invention relates to the technical field of production in the steel smelting industry, in particular to a method for partially repairing the working lining of a brick ladle. Background technique [0002] At present, domestic LF and RH furnace refining ladle walls basically adopt two forms of castables and ladle bricks, and most steel plants at the slag line use ladle bricks for masonry, and ladle bricks are used to line the refining ladle in the domestic steel industry application is very common. However, compared with the working lining of ladle brick and castable material, in the case of severe local corrosion, the repair of the working lining of ladle brick often becomes a big problem. The following three types of problems may occur during the use of ladle bricks. (1) Due to the influence of the smelting environment, the local erosion of the working lining is uneven, and the erosion speed is too fast, resulting in the overall removal of the lad...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to aim at the deficiencies and shortcomings of the above-mentioned prior art, and provide a method for partial repair of the working lining of the brick ladle, which can effectively solve the problem that the working lining of the brick ladle is seriously damaged and the entire package is removed, so as to improve the quality of the brickwork. Longer service life of ladle working lining, reducing unnecessary loss of refractory materials