焦炉端部火道揭顶翻修技术应用

Research of re-bricklaying for oven end flues by uncovering from battery roof

介绍了2座6 m焦炉的工程概况,分析了焦炉端部火道炉墙损坏的主要外因及采用熔融硅砖对端部火道进行揭顶翻修的优点。通过揭顶翻修解决了端部火道炉墙破损、变形及炉头冒烟着火问题,且较使用普通硅砖总工期缩短约110天,可减少焦炭损失约23 210 t,2座焦炉的焦炭产量较维修前提升了50%以上。

This paper introduces the conditions of two blocks of 6 m coke ovens and analyzes the main causes of end flue damage as well as the advantages of re-bricklaying for oven end flues with low expansion rate silica bricks by uncovering from battery roof.Thus solutions can be given to the damage and deformation on heating wall at end flues and the oven end emission escaping and flaming as well.Compared with using ordinary silica bricks, the overall time schedule can be shortened by around 110 days, coke can be saved by 23 210 tons approximately and coke output can be increased by 50% plus.