On-site treatment of cover brick tilting problem and problem analysis
Release time:
2025-05-08 00:00
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Measures to deal with the problem of tilting of cover bricks
The top wire of the cover of an electric furnace built by our company is movable and can be twisted by hand. The reason is that the open-hearth furnace is not adjusted in time when it is kept warm and resumed production, which causes the lower pool wall or the top wire of the pool wall to shrink and the gap to become larger when the furnace is stopped. When the temperature rises, the gap becomes larger, and the bricks will go outward, causing them to sink. In order to solve this problem, a wire position can be welded between the supporting plate and the column to make the supporting plate fixed. In addition, the lack of power of the flowing fans, resulting in large temperature differences, may also be one of the reasons. Finally, the cover bricks and the fused bricks between the over-layer are not reinforced and also need to be strengthened.
Analysis of furnace reinforcement and deformation
First of all, the transition layer supporting plate did not form a complete circle, causing the bricks to move to both sides after expansion and the middle bricks to sink three centimeters. Secondly, the ascending road was badly deformed, tilted by 40 mm, and the upper two grooved cylinders were not reinforced. The reinforcement method is unreasonable, the top wire is displaced, and Cao Gang is bent. Finally, it is recommended that when the furnace is reinforced in the future, the breast wall should be made into a uniform shape, and the furnace door should be made strong and able to rotate freely.
Inspection perception and on-site reinforcement suggestions
During the heating and expansion of the material, the steel needs to be restricted so that it does not expand freely. At the same time, the structure of the reinforced steel must be a complete closed structure, not a single column. In practice, it is necessary to pay attention to the problem of the slope of the ascending road to ensure that the on-site reinforcement personnel can fully understand how to reinforce. In addition, what should I do after the problem of the feeding door? It is advisable to make the bricks beveled so that the molten glass remains in the furnace as much as possible.
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