CAJ | 학술논문

炉役后期的护炉生产实践以及炉缸侵蚀模型表明，济钢2#1750 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。
로역후기적호로생산실천이급로항침식모형표명，제강2#1750 m3고로로항측벽정현위교대마고형침식。분석인위로항침식적주요원인시철수배류적영향이급로항국부열류강도과고；령외，90°적철구협각포치이급장기빈번사용세로제야가극료로항적침식。통과개진관장조작，개발국부강화냉각기술，제고료로항적냉각효과。동시우화조작제도，유효감완료전츤적침식，보증료로역후기로항공작본질안전。
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.