高炉死料柱状态及其对铁水流动的影响
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摘要
为了判断高炉死料柱状态及其对铁水环流的影响。通过对高炉料柱受力分析,判断高炉死料柱状态,并在此基础上模拟死料柱状态对铁水流动的影响。研究结果表明,大型高炉正常出铁时,死料柱基本处于沉坐状态;当死料柱底部中心沉坐时,铁水在无焦区域相对活跃,流速更大,对炉缸侧壁剪切应力更大,对炉缸侧壁以及出铁口下方区域冲刷更加严重。
In order to judged deadman status and its influence on hot metal flow in a blast furnace hearth.The deadman status is first judged,then the flow of the hot metal is simulated. The results show that the deadman status is sitting when the large blast furnace is normal tapping. When the deadman is at middle sitting,the velocity of the hot metal in the coke-free zone is larger than that in the coke zone,and the shear stress is great on the side wall of the hearth,and the erosion of the area under the taphole in the side wall is more serious.
In order to judged deadman status and its influence on hot metal flow in a blast furnace hearth.The deadman status is first judged,then the flow of the hot metal is simulated. The results show that the deadman status is sitting when the large blast furnace is normal tapping. When the deadman is at middle sitting,the velocity of the hot metal in the coke-free zone is larger than that in the coke zone,and the shear stress is great on the side wall of the hearth,and the erosion of the area under the taphole in the side wall is more serious.
引文
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[10]尹德友,程伟玲,谢金印,等.铁浴式熔融还原炉浸入式侧吹对熔池内流动影响的数值分析[J].过程工程学报,2010,10(6):1066.(YIN De-you,CHENG Wei-ling,XIE Jin-yin,et al.Iron bath smelting reduction furnace by numerical analysis of influence of immersion of molten pool flow in[J]. Process Engineering Journal,2010,10(6):1066.)
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[14]张建良,焦克新,刘征建,等.长寿高炉炉缸保护层综合调控技术[J].钢铁,2017,52(12):1.(ZHANG Jian-liang,JIAO Kexin,LIU Zheng-jian,et al. Comprehensive regulation technology for hearth protective layer of blast furnace longevity[J].Iron and Steel,2017,52(12):1.)
[15]朱进锋,赵宏博,程树森,等.高炉炉缸死焦堆受力分析与计算[J].北京科技大学学报,2009,31(7):906.(ZHU Jin-feng,ZHAO Hong-bo,CHENG Shu-sen,et al. Analysis and calculation of the force of the dead coke heap of the blast furnace hearth[J]. Journal of University of Science and Technology Beijing,2009,31(7):906.)
[16]张杰.高炉炉缸铁水环流的数值模拟[D].沈阳:东北大学,2012.(ZHANG Jie. Numerical Simulation of the Circulation of Hot Metal in the Hearth of a Blast Furnace[D]. Shengyang:Northeastern University,2012.)
[17]国宏伟.高炉死料柱孔隙度变化对炉缸炉底流场的影响[C]//2010年全国炼铁生产技术会议暨炼铁学术年会文集(下).北京:中国金属学会,2009:5.(GUO Hong-wei. Effect of porosity change of blast furnace dead column on flow field at hearth of hearth[C]//2010 National Ironmaking Production Technology Conference and Ironmaking Academic Annual Conference(Part II). Beijing:The Chinese Society for Metals,2009:5.)
[2]张建良,王志宇,焦克新,等.高炉炉缸耐火材料抗渣侵蚀性及挂渣性[J].钢铁,2015,50(11):27.(ZHANG Jian-liang,WANG Zhi-yu,JIAO Ke-xin,et al. Slag erosion resistance and hanging mechanism for the refractory in blast furnace[J].Iron and Steel,2015,50(11):27.)
[3]孙金铎,黄晓煜,杜续恩.高炉炉缸破损的原因与控制[J].钢铁,2015,50(6):1.(SUN Jin-duo,HUANG Xiao-yu,DU Xu-en.Reason and control of blast furnace hearth corrosion[J]. Iron and Steel,2015,50(6):1.)
[4]王刚,李爱锋,刘风军,等.高炉炉缸长寿智能管理系统的开发与应用[J].中国冶金,2016,26(4):43.(WANG Gang,LI Aifeng,LIU Feng-jun,et al. Development and application of intelligent management system for blast furnace hearth longevity[J].China Metallurgy,2016,26(4):43.)
[5]周东东,姜曦,周翔. 2016年上半年中国大高炉生产指标浅析[J].中国冶金,2016,26(12):1.(ZHOU Dong-dong,JIANG Xi,ZHOU Xiang. Analysis of production indexes of large blast furnaces in China during first half of 2016[J]. China Metallurgy,2016,26(12):1.)
[6]马洪修,张建良,焦克新,等.高炉炉缸侵蚀特征及侵蚀原因探析[J].钢铁,2018,53(9):14.(MA Hong-xiu,ZHANG Jianliang,JIAO Ke-xin,et al. Analysis of erosion characteristics and causes of blast furnace hearth[J]. Iron and Steel,2018,53(9):14.)
[7] Tachimori M,Ohno J,Nakamura M,et al. Flow of iron in blast furnace hearth[J]. Tetsu-to-Hagané,1984,70(16):2224.
[8] Luomala M J,Mattila o J,H?rkki J J,et al. Physical modelling of hot metal flow in a blast furnacehearth[J]. Scandinavian Journal of Metallurgy,2001,30(4):225.
[9] Shao L,Saxén H. Numerical prediction of iron flow and bottom erosion in the blast furnace hearth[J]. Steel Research International,2012,83(9):878.
[10]尹德友,程伟玲,谢金印,等.铁浴式熔融还原炉浸入式侧吹对熔池内流动影响的数值分析[J].过程工程学报,2010,10(6):1066.(YIN De-you,CHENG Wei-ling,XIE Jin-yin,et al.Iron bath smelting reduction furnace by numerical analysis of influence of immersion of molten pool flow in[J]. Process Engineering Journal,2010,10(6):1066.)
[11]张学锋,刘楠,汤亚玲,等.基于Fluent的高炉炉缸铁水流动模拟软件[J].计算机系统应用,2017,26(11):243.(ZHANG Xue-feng,LIU Nan,TANG Ya-ling,et al. Fluent-based simulation software for hot metal flow in blast furnace hearth[J]. Application of Computer System,2017,26(11):243.)
[12]陈川,安钢.炉缸活跃性指数及改善措施[J].钢铁,2018,53(1):29.(CHEN Chuan,AN Gang. Activity index and improvement measure of BF hearth[J]. Iron and Steel,2018,53(1):29.)
[13]袁辉,金焱,薛正良,等.高炉出铁过程中铁水非稳态流动对炉缸炉底侵蚀的影响[J].钢铁研究学报,2017,29(7):544.(YUAN Hui,JIN Yan,XUE Zheng-liang,et al. Influence of unsteady molten iron flow on hearth and hearth erosion during blast furnace tapping[J]. Journal of Iron and Steel Research,2017,29(7):544.)
[14]张建良,焦克新,刘征建,等.长寿高炉炉缸保护层综合调控技术[J].钢铁,2017,52(12):1.(ZHANG Jian-liang,JIAO Kexin,LIU Zheng-jian,et al. Comprehensive regulation technology for hearth protective layer of blast furnace longevity[J].Iron and Steel,2017,52(12):1.)
[15]朱进锋,赵宏博,程树森,等.高炉炉缸死焦堆受力分析与计算[J].北京科技大学学报,2009,31(7):906.(ZHU Jin-feng,ZHAO Hong-bo,CHENG Shu-sen,et al. Analysis and calculation of the force of the dead coke heap of the blast furnace hearth[J]. Journal of University of Science and Technology Beijing,2009,31(7):906.)
[16]张杰.高炉炉缸铁水环流的数值模拟[D].沈阳:东北大学,2012.(ZHANG Jie. Numerical Simulation of the Circulation of Hot Metal in the Hearth of a Blast Furnace[D]. Shengyang:Northeastern University,2012.)
[17]国宏伟.高炉死料柱孔隙度变化对炉缸炉底流场的影响[C]//2010年全国炼铁生产技术会议暨炼铁学术年会文集(下).北京:中国金属学会,2009:5.(GUO Hong-wei. Effect of porosity change of blast furnace dead column on flow field at hearth of hearth[C]//2010 National Ironmaking Production Technology Conference and Ironmaking Academic Annual Conference(Part II). Beijing:The Chinese Society for Metals,2009:5.)