摘要
废钢比是转炉生产的重要经济技术指标,其值大小直接影响转炉冶炼钢铁料消耗及热平衡,提高入炉废钢比是实现节铁增钢、降本增效的重要技术手段。然因冶炼低硅含钛铁水成渣难、脱磷难等问题,对应入炉废钢比持低不高,直接影响转炉生产成本。为此,基于低硅含钛铁水冶炼特点及难点分析,结合水钢生产实践,通过氧枪喷头优化、枪位优化、添加提温剂等工艺优化和技术开发,使入炉废钢比由优化前7.41%提高至13.48%,优化效果较为明显,为实现节铁增钢、降本增效奠定了一定基础。
The scrap ratio is an important economic and technical indicator for converter production,and its value directly affects the iron loss and heat balance of steel smelting in the converter.Increasing the scrap ratio into the furnace is an important technical means to achieve iron saving and steel increase,cost reduction and efficiency increase.However,due to the difficulty of slag formation and dephosphorization of Ti-containing and low-Si molten iron,the scrap ratio into the furnace is not high,which directly affects the production cost of the converter.For this reason,based on the analysis of the characteristics and difficulties of Ti-containing and low-Si molten iron smelting,combined with Shougang Shuicheng Iron and Steel Group Co.,Ltd production practice,through the optimization of oxygen lance nozzle and gun position,adding temperature raising agent et al process optimization and technological development,the scrap ratio increased from 7.41% to 13.48% and optimization effect is obvious,which laid a certain foundation for achieve iron saving and steel increase,cost reduction and efficiency increase.
作者
王劼
华福波
谢祥
杨龙飞
文安义
WANG Jie;HUA Fu-bo;XIE Xiang;YANG Long-fei;WEN An-yi(Steel Rolling Business Department,Shougang Shuicheng Iron and Steel Group Co.,Ltd.,Liupanshui 553028,Guizhou,China;Manufacturing Management Department,Shougang Shuicheng Iron and Steel Group Co.,Ltd,Liupanshui 553028,Guizhou,China)
出处
《连铸》
2020年第6期27-33,共7页
Continuous Casting
关键词
转炉
低硅含钛铁水
废钢比
热平衡
枪位
优化
converter
Ti-containing and low-Si hot metal
scrap ratio
heat balance
lance position
optimization
