共查询到18条相似文献,搜索用时 125 毫秒
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高炉冶炼强化后,炉缸、炉底寿命一直是高炉长寿的限制性因素。我国自80年代初开发含钛物料护炉技术后,采用该项技术,可以较好地解决炉缸炉底的寿命问题。本书概括地介绍了含钛物料护炉的有关机理、护炉经验、大中小各种类型高炉的护炉生产实践及效果、风口喷吹与铁口炮泥加入新方法等试验结果,以及新型护炉料的开发应用等,比较系统地总结了我国开发、应用护炉 相似文献
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简要介绍了高炉采用含钛物料护炉机理、影响因素以及常用的护炉方法。由各厂的护炉经验来看,采用含钛物料进行高炉护炉时,[Ti]含量通常保持在0.10%~0.20%,同时应加大炉缸的冷却,以有利于TiC与TiN的析出。 相似文献
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介绍了控制炉缸水温差升高所采取的一般措施,简述了含钛物料护炉的原理及含钛物料的各种加入方式;并通过对国内外高炉使用含钛物料护炉经验的介绍,说明了这几种加入方式各自的特点及适用情况. 相似文献
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For complex, difficult-to-control, and hour-delay blast furnace (BF) systems, the quantitative characterization, prediction, and adjustment of the BF hearth activity are significant in improving the furnace status. In this study, data including raw fuel, process operation, smelting state, and slag and iron discharge during the entire BF process are analyzed, with a total of 171 variables and 5033 groups of data. Based on the knowledge of BF technology, a comprehensive index of hearth activity is then proposed to quantitatively characterize and grade the activity level of the BF hearth; the rationality of this method is verified from the two aspects of furnace heat level and furnace status coincidence. Compared with the traditional single-machine learning algorithm, the performance of the proposed method that combines genetic algorithm and stacking exhibits significant improvement. The hit rates for 10% and 5% errors in the prediction and estimation of hearth activity are 94.64% and 80.36%, respectively. To enhance the BF hearth activity, quantized and dynamic actions and suggestions are also simultaneously pushed. The model of BF hearth activity is successfully applied in practical online production. During the application period, the average furnace hearth activity increases by 10% compared to the historical value. 相似文献
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选择合适的炉渣碱度和成分,是高炉炼铁得到合格铁水和保持炉缸良好工况的关键.安钢针对7#高炉原料条件的变化,通过在炉料中合理添加蛇纹石有效改变了炉渣中Al2O3含量高而MgO含量低的状况,得到了适宜的炉渣成分,保证了炉温、炉渣性能的稳定,为改善高炉的冶炼效果创造了有利条件. 相似文献
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炼铁厂5#高炉铁口部位的炉缸侵蚀严重,冷却壁热流高,采用传统的护炉方法效果不佳,经过积极探寻,找到了一种更有效的护炉方法——从风口喂钛精线护炉法,并取得了良好的护炉效果。 相似文献