80t转炉冶炼SCM435钢留渣操作技术研究  

A Study on Remaining Slag Operation of 80t BOF Steelmaking Steel SCM435

作　　者：霍志斌 赵彦岭 王建林 王秋坤 Huo Zhibin;Zhao Yanling;Wang Jianlin;Wang Qiukun(Steelmaking Works,Xingtai Iron and Steel Co Ltd,Xingtai 05402)

机构地区：[1]邢台钢铁有限责任公司炼钢厂,邢台054027

出　　处：《特殊钢》2018年第5期14-17,共4页Special Steel

摘　　要：试验研究了转炉冶炼SCM435钢时留渣操作(留渣分数1/3～2/3渣量)对石灰加入量、平衡碱度的留渣炉数和终渣碱度的影响,总结了留渣操作的注意事项。80 t转炉实施留渣操作后,留渣率达到68.9%,成品P含量≤0.015%的比例比从留渣前的49.3%提高到62.2%,同时石灰消耗降低了4.5 kg/t、每炉渣中铁损失减少230 kg。The effect of remaining slag operation （ remaining slag fraction 1/3 ~ 2/3 slag amount） of BOF steelmaking steel SCM435 on lime adding amount, remaining slag heats of equilibrium basicity and end slag basieity is tested and stud- ied, and the points for attention in slag remaining operation are summarized. As the 80t BOF remaining slag operation is put into practice, the remaining slag rate is up to 68.9%, the ratio of P content ~〈0. 015% in product increases from origi- nal 49. 3% to 62. 2% , and the lime consumption decreases by 4. 5 kg/t, and the iron loss in slag decreases by 230 kg.

关 键 词：80T转炉 SCM435钢 留渣 脱磷 喷溅 终点磷含量 

分 类 号：TF713[冶金工程—钢铁冶金]