高碱度炉渣对高炉冶炼的影响及适宜的操作制度  

Influence of high basicity slag on BF smelting and corresponding operating system suggested

作　　者：方磊 吴宏桢 胡正文 张建良[2] FANG Lei;WU Hongzhen;HU Zhengwen;ZHANG Jianliang(Nanjing Nangang Industry Development Co.,Ltd.,Nanjing 211800,Jiangsu,China;School of Metallurgical and Ecological Engineering,University of Science and Technology Beijing,Beijing 100083,China)

机构地区：[1]南京南钢产业发展有限公司,江苏南京211800 [2]北京科技大学冶金与生态工程学院,北京100083

出　　处：《炼铁》2025年第1期15-20,共6页Ironmaking

摘　　要：基于南钢高炉高碱度炉渣冶炼生产实践,探讨了高碱度炉渣对高炉冶炼参数、软熔带位置、炉渣排碱排锌性能的影响,并提出了高碱度炉渣冶炼适宜的造渣制度、热制度、冷却制度、装料制度。认为,高碱度炉渣冶炼同样可以实现较好的技术经济指标,关键在于保障高碱度炉渣治炼下各项操作参数及指标的稳定。综合考虑碱度对高炉软熔带、排碱排锌性能影响,南钢高炉终渣碱度应在1.28~1.30,镁铝比在0.51~0.53,保持铁水温度在1484~1500℃,冷却水温差控制在6.32~8.20℃,同时保持适当的布料角度和稳定的人炉球团矿比例。The influence of high basicity slag on BF smelting parameters,the cohesive zone location,basicity and zinc removal of slag is discussed with reference to Nangang BF smelting operation with high basicity slag,and corresponding slagging system,heat system,cooling system and charging system suitable for high basicity slag smelting are suggested.It is believed that the furnace can achieve sound technoeconomic indexes even smelting with high basicity slag if the stability of various operating parameters and indexes are ensured.Considering the influence of basicity on the cohesive zone and removal performance of basicity and zinc,the final slag basicity is suggested to be controlled at 1.28-1.30,the magnesium-aluminum ratio at 0.51-0.53,the hot metal temperature at 1484-1500℃,and the differential temperature of the cooling water at 6.32-8.20℃.In addition,both appropriate distribution angle and stable charging proportion of pellets are required.

关 键 词：高炉 高碱度炉渣 软熔带 操作制度 镁铝比 

分 类 号：TF543[冶金工程—钢铁冶金]