Effect of Heat Transfer on Different Refractories in BF Hearth

机译：传热对高炉炉膛不同耐火材料的影响

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A three-dimensional mathematical model and physical model of a 2580m3 blast furnace (BF) hearth structure in a steel company in China was established by using the finite element software ANSYS.The effects of heat transfer on different refractories in BF hearth were calculated.Considering the factors of the integrity of the hearth refractory and the cooling water velocity, different hearth conditions were taken for calculation, that is, the carbon brick thickness is 920mm and the ceramic cup/pad thickness is 350mm,the thickness of carbon brick is 300mm and no ceramic cup /pad, respectively.The cooling water velocity were selected as 0.5, 1.0, 1.5, 2.0, 3.0, 4.0,5.0m/s.Refractory types were carbon composite brick,Japan BC-7S carbon brick and NMA carbon brick.After calculation, the comparison of the 600, 800,1000, 1150℃ isotherm distribution of different carbon brick hearth and bottom were analyzed.The regularity of hearth heat transfer of different types of carbon brick and the different thickness of carbon brick were obtained.At the same time, the ability of heat transfer with different carbon brick in different water velocity was compared.The appropriate cooling water velocity of different carbon brick structures and carbon brick thickness were calculated.Finally, the heat transfer effect of different carbon brick structures in BF hearth and the effect of the cooling water velocity on heat transfer were analyzed, which could provide theoretical guidance for the design and operation of the BF.

机译：利用有限元软件ANSYS建立了中国某钢铁公司2580m3高炉炉膛结构的三维数学模型和物理模型，计算了传热对高炉炉膛不同耐火材料的影响。计算炉膛耐火材料完整性和冷却水速度的因素，计算出不同的炉膛条件，即碳砖厚度为920mm，陶瓷杯/垫的厚度为350mm，碳砖厚度为300mm，冷却水速度分别为0.5、1.0、1.5、2.0、3.0、4.0、5.0m / s。耐火材料类型为碳复合砖，日本BC-7S碳砖和NMA碳砖。经过计算，分析了不同碳砖炉膛和炉底的600、800、1000、1150℃等温线分布的比较。不同类型和不同碳砖炉膛传热的规律性同时，比较了不同碳砖在不同水速下的传热能力，计算了不同碳砖结构的合适冷却水速度和碳砖厚度。分析了高炉炉膛中不同碳砖结构的影响以及冷却水速度对传热的影响，可为高炉的设计和运行提供理论指导。

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来源
《第七届国际耐火材料学术会议（ISR2016）论文集》|2016年|1-5|共5页
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作者
GUO Guangsheng; ZHANG Jianliang; JIAO Kexin; LIU Zhengjian;
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School of Metallurgical and Ecological Engineering,University of Science and Technology Beijing,Beijing 100083,China;

School of Metallurgical and Ecological Engineering,University of Science and Technology Beijing,Beijing 100083,China;

School of Metallurgical and Ecological Engineering,University of Science and Technology Beijing,Beijing 100083,China;

School of Metallurgical and Ecological Engineering,University of Science and Technology Beijing,Beijing 100083,China;

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原文格式 PDF
正文语种 eng
中图分类化学工业;冶金工业;
关键词
refractory; BF hearth; heat transfer; carbon brick;

机译：耐火材料；高炉炉膛；传热；碳砖;

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Effect of Heat Transfer on Different Refractories in BF Hearth

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