摘要
炉役后期的护炉生产实践以及炉缸侵蚀模型表明,济钢2#1 750 m3高炉炉缸侧壁呈现为较大蘑菇型侵蚀。分析认为炉缸侵蚀的主要原因是铁水环流的影响以及炉缸局部热流强度过高;另外,90°的铁口夹角布置以及长期频繁使用洗炉剂也加剧了炉缸的侵蚀。通过改进灌浆操作,开发局部强化冷却技术,提高了炉缸的冷却效果。同时优化操作制度,有效减缓了砖衬的侵蚀,保证了炉役后期炉缸工作本质安全。
Furnace protection practice of Jinan Steel＇ s No.2 1 750 m3 BF in the later stage of campaign and the hearth erosion model showed that the hearth sidewall erosion was presented large mushroom. The analysis considered that the main reasons of the hearth erosion were the influences of hot metal circulation and high heat flux in the local; In addition, iron notch arrangement with 90° angle and long-term frequent use of cleaning agent exacerbated the hearth erosion. By improving grouting operation and developing local strengthening cooling technology, the cooling effect of the hearth was enhanced. At the same time, by optimizing operation system, the brick lining erosion was mitigated. Therefore, the hearth work safety in the later stage of campaign was ensured.
出处
《山东冶金》
CAS
2014年第4期7-9,共3页
Shandong Metallurgy
关键词
高炉
炉役后期
炉缸侵蚀
护炉
blast furnace
later stage of campaign
hearth erosion
furnace protection
