金属学报  1959, Vol. 4 Issue (3): 195-205

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高炉炉底耐火衬料的厚度及导热性对炉底温度场的影响

万纾民

中国科学院化工冶金研究所

THE EFFECT OF THE THICKNESS AND THE THERMAL CONDUCTIVITIES OF THE REFRACTORY LININGS IN THE BLAST FURNACE BOTTOM ON THE TEMPERATURE FIELD OF THE BOTTOM

WAN SHU-MING Institute of Chemical Metallurgy; Academia Sinica

万纾民. 高炉炉底耐火衬料的厚度及导热性对炉底温度场的影响[J]. 金属学报, 1959, 4(3): 195-205.
. THE EFFECT OF THE THICKNESS AND THE THERMAL CONDUCTIVITIES OF THE REFRACTORY LININGS IN THE BLAST FURNACE BOTTOM ON THE TEMPERATURE FIELD OF THE BOTTOM[J]. Acta Metall Sin, 1959, 4(3): 195-205.

摘要 参考文献 相关文章 Metrics 全文: PDF(888 KB)   摘要: 本文用有限汉克尔变换计算了炉底衬料的导热性及其厚度、冷却情况以及缸温等对炉底温度场的影响。计算的结果均用曲线来表明。这些结果指出:在多层结构的炉底中,最内层衬料的导热性愈小,而愈靠外层的导热性愈人,则炉底的温度梯度愈陡,热损失也愈小;冷却情况的好坏及缸温的高低对炉底温度场的好坏均有很大的影响。所得结果对炉缸、炉底的合理设计具有一定的指导作用。 文内指出应该进一步研究炉底1150℃的位置与炉缸内外径及各层衬料厚度的关系;死铁层的深度对炉底温度场,尤其是1150℃的位置以及炉底底部中心处的温度等的影响也应进一步研究。 作者认为:当用导热性较大的衬料(如碳砖)作最内层衬料时,其厚度很可能有一临界值。所谓“临界厚度”,意即当小于此厚度时,则遵守“最内层衬料的导热性愈小,炉底的温度则愈低”的原则;超过此厚度后,则反之。 在多层结构(如双层结构)的炉底中,下部的导热性较大的衬料层具有“过渡的”冷却作用,而且有一个有效厚度,此厚度很可能是下层衬料与上层衬料导热性之比的递减函数。 Abstract：The effect of the thickness and thermal conductivities of the bottom linings, cooling condi-tions and hearth temperature on the temperature field of the bottom had been studied by FiniteHankel Transform, and the results were shown by Curves. It is pointed out that in a bottomwith multiple lining layers, the lower the thermal conductivity of the most inner lining andthe higher the thermal conductivity of the more outer lining, the sharper the temperature gradientof the bottom and the smaller the heat loss. Cooling conditions and hearth temperature havegreat effect on the temperature field in the bottom. The author pointed out that the dependence of the position of 1150℃ on the inner andouter diameter of the hearth and the thickness of its lining layers should be investigated furtherthe effect of the depth of the salamander on the temperature field, especially on the position of1150℃ and the temperature of the top of the foundation, should also be studied further. The author presumes that when the lining material with higher thermal conductivity is usedas the most inner lining layer, it may have a "critical thickness". Under this thickness, it obeysthe principle that the lower the thermal conductivity of the most inner lining layer, the sharperthe temperature gradient; above this critical thickness, it is just opposite to the former case. In a bottom with multiple lining layers, the lower layer with higher thermal conductivitythan the upper one displays a "transitional" cooling effect, for which the layer has an effectivethickness. This thickness may be a decreasing function of the ratio of the thermal conductivityof the lower layer to that of the upper layer. 收稿日期: 1959-03-18      服务 把本文推荐给朋友 加入引用管理器 E-mail Alert RSS 作者相关文章 万纾民 44.8K 链接本文: https://www.ams.org.cn/CN/      或      https://www.ams.org.cn/CN/Y1959/V4/I3/195 [1] 万纾民,碳衬高炉炉底传热中的若干问题(待发表). [2] T. R. Westbrook. BF&SP, 41, No. 4 (1953) , 413． [3] E. J. Williams and E. J. Burton, J. Iron and Steel Inst., 197 (1955) , 17． [4] V. Paschkis, Iron and Steel Engineer, 31, No. 2 (1954) , 53． [5] Ian N. Sneddon, Fourier Ttansforms, chap. 3, 1951． [6] В. В. Юшкин著,万纾民译,钢铁译丛,3(1958) ,4． [7] V. Paschkis and Taghi Mirsepassi, Iron and Steel Engineer, Junc (1956) ,116．! No related articles found! Viewed Full text Abstract Cited   Shared      Discussed