Research on the thermal damaged mechanism of Baosteel blast - furnace tuyere

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• 作者：ZHANG ZhekaiWU ShengliFENG XinhuaDU Kaiping
• 会议时间：2013-06-01
• 关键词：blast furnace ; tuyere ; numerical simulation
• 作者单位：ZHANG Zhekai,WU Shengli,DU Kaiping(School of Metallurgical and Ecological Engineering,University of Science and Technology Beijing,Beijing 100083 China)FENG Xinhua(Iron Making Plant,Baoshan Iron & Steel Co.,Ltd.,Shanghai 201900,China)
• 母体文献：第五届宝钢学术年会论文集
• 会议名称：第五届宝钢学术年会
• 会议地点：上海
• 主办单位：中国金属学会
• 语种：chi

摘要

Due to the hostile working environment,blast furnace tuyere was easily damaged,which increase the blast furnace blown down percentage.In this paper,tuyere damage statistic is made to improve the understanding that the main thermal damage form of blast furnace tuyere is melting loss.In addition,a melting loss tuyere is dissected to investigate the difference of composition,structure and heat transfer property by SEM and EDX analysis.A computational fluid dynamic ( CFD) model has been developed to simulate the temperature of cooling water,together with the temperature field of the tuyere body.Through the simulation,the position where cooling blind position occurs easily is found.The results show that the temperature distribution of tuyere body and the cooling water play an important role for the understanding of the tuyere ' s working condition and the highest temperature position is at the bottom of the front tuyere,which have a intimate relationship with the thermal damaged of tuyere.