Coke oven door lining brick repairing process

A furnace door and lining brick technology, which is applied in the field of coking equipment repair, can solve the problems of narrow furnace door and increased labor intensity, and achieve the effect of shortening operation time, reducing labor intensity and not wasting resources

Active Publication Date: 2012-09-19
SGIS SONGSHAN CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This not only increases the labor intensity, but also the operator needs to stand on the furnace door repair rack to work. In addition, the furnace door is narrow, and the use of pneumatic picks is also dangerous.

Method used

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  • Coke oven door lining brick repairing process
  • Coke oven door lining brick repairing process

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0015] A coke oven door lining brick repair process, its process steps are:

[0016] Step 1: Clean the damaged surface first, and remove the tar, coal powder and broken bricks remaining on the damaged surface. This step takes 5 to 9 minutes;

[0017] Step 2: Make the damaged part to be repaired into a pockmarked surface with steel brazing, which is convenient to connect with the repairing material, and blow it clean with compressed air to ensure that the bottom surface is free of ash. This step takes 3 to 6 minutes;

[0018] Step 3: Prepare the furnace door lining brick repair material. The raw materials required for the repair material include: mullite-silicon carbide brick fire clay, aluminate cement and water, and the weight ratio is: mullite-silicon carbide Fireclay 90-95 for bricks, aluminate cement 2-7, water 3, determine the weight of the required materials according to the size of the repaired area and the above weight ratio, and then put it into the mixer and stir for...

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Abstract

The invention relates to a coke oven door lining brick repairing process, comprising the following steps of: cleaning a damaged surface; preparing the damaged part to be repaired into a pitted surface with steel chisel for connection with a repaired material; preparing an oven door lining brick repairing material; evenly pouring a layer of sparse mortar prepared from aluminate cement and water on the damaged surface and filling repairing materials; spraying a layer of aluminate cement on the surface; and immediately trowelling the repairing surface with a cutter to ensure a smoothed repairing surface. By using a corbel special repairing material remained after dry quenching during annual overhaul, new oven door lining bricks are not required, thereby avoiding wasting resources and reducing the cost; the damaged oven door lining brick does not need to be removed, thereby reducing the labour intensity and shortening the operation time; the whole repairing process only consumes 1-1.5h; and by using the oven door repaired by the invention, the service life is prolonged.

Description

technical field [0001] The invention belongs to the technical field of coking equipment repair and relates to a coke oven door lining brick repair process. Background technique [0002] Furnace door is a very important coke oven equipment. Before it is put into use, the furnace door lining bricks must be laid. The material of furnace door lining bricks required for each furnace door is shown in figure 1 . The lining brick of the furnace door should be in good condition. If the damage is serious, the furnace door will be partially overheated, deformed, and the tightness of the furnace door will be damaged, and the furnace head coke will collapse when the door is removed, increasing the number of furnace head and tail coke. When the damaged area of ​​the door lining brick reaches more than 30%, it should be replaced in time. At present, the traditional method is to replace the severely damaged furnace door. After cooling, the damaged furnace door lining is removed, and then...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10B25/02C10B29/06C04B35/66
Inventor 李国保陈锡通巢美林徐英彪王飞龙韩世祥石慧峰
Owner SGIS SONGSHAN CO LTD
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