摘要
以鞍钢新5号高炉为研究对象,对比分析了空喷及考虑风口回旋区这两种工况下高炉热风的周向分配情况.结果表明:当风口参数相同时,空喷与考虑风口回旋区这两种工况下的热风分配规律相同,即在高炉圆周0°,90°,180°和270°方位的风口风量和鼓风动能较大,45°,135°,225°和315°方位的风口风量和鼓风动能较小;空喷和考虑风口回旋区这两种工况下的风量极差分别为3.65 m^(3)/min和7.29 m^(3)/min,标准差分别为1.32和2.71;空喷和考虑风口回旋区这两种工况下的鼓风动能极差分别为9.93 kJ/s和19.90 kJ/s,标准差分别为3.62和7.41;与空喷工况相比,考虑风口回旋区工况下热风和鼓风动能分配的不均匀性更为明显,热风分配结果更准确.
Taking the new No.5 blast furnace of Ansteel as the research object,a comparative analysis was conducted on the circumferential distribution of hot blast in the blast furnace under two operating conditions of considering and not considering the tuyere raceway.The results show that,when the tuyere parameters are consistent,the hot blast distribution rule without considering the tuyere raceway is the same as that with considering the tuyere raceway,i.e.,the blast volume and blast kinetic energy at 0°,90°,180°and 270°positions of the BF circumference are large,the blast volume and blast kinetic energy at 45°,135°,225°and 315°positions are small.The standard range of blast volume under considering and not considering raceway is 3.65 m^(3)/min and 7.29 m^(3)/min and the standard deviation is 1.32 and 2.71 respectively.The standard range of blowing kinetic energy under considering and not considering raceway is 9.93 kJ/s and 19.90 kJ/s and the standard deviation is 3.62 and 7.41 respectively.It was found thatthe uneven distribution of hot blast and blast kinetic energy when considering raceway is more obvious than that without considering the raceway.
作者
罗志国
张瑀博
史本慧
刘洪升
刘炳南
邹宗树
Luo Zhiguo;Zhang Yubo;Shi Benhui;Liu Hongsheng;Liu Bingnan;Zou Zongshu(Key Laboratory of Ecological Metallurgy of Multimetallic Mineral(Ministry of Education),Northeastern University,Shenyang 110819,China;State Key Laboratory of Metal Material for Marine Equipment and Application,Anshan 114009,China;Ansteel Iron&Steel Research Institutes,Anshan 114009,China)
出处
《材料与冶金学报》
CAS
北大核心
2024年第4期314-320,共7页
Journal of Materials and Metallurgy
基金
国家自然科学基金项目(51504056)。
关键词
高炉
风口回旋区
热风分配
风量
鼓风动能
blast furnace
raceway
hot blast distribution
blast volume
blast kinetic energy
