摘要
65 t转炉冶炼过程中用粒子钢压块替代部分废钢后,出现的热量不足、低温喷溅严重、钢水终点磷含量偏高和过氧化率高等问题,有针对性地对转炉装入制度、供氧制度、造渣制度以及温度控制制度进行优化,提高了转炉终点成分控制的稳定性,最终实现了粒子钢中含铁资源的有效回收再利用。生产实践表明:当试验炉次粒子钢压块加入量在6.97~14.34 t时,其转炉终点磷含量在0.018%~0.036%范围波动,转炉终点硫含量在0.020%~0.036%范围波动,满足冶炼钢种对目标磷、硫含量的要求,粒子钢压块金属收得率平均值为81.1%,经济效益显著。
After using steel particle briquetting to replace part of scrap during 60 t converter steelmaking,the problems of insufficient heat,severe low temperature splashing,high end point P content and peroxidation rate in the molten steel occur,the systems such as charging,oxygen supplying,slag forming and temperature control of the converter are purposefully optimized,the stability of the end point composition control is improved,the effective recycling of iron-bearing resouce in the steel particle is finally achieved.The production practice shows that for the testing heats of the converter,when the addition amount of steel particle briquettes is between 6.97 and 14.34 tons,the end point P content varies between 0.018% and 0.036%,the end point S content varies between 0.020%and 0.036%,satifying the requirements of the melting steel grade on the target P and S contents,the average metal yield rate of the steel particle briquetting is 81.1%with significant economic benefits.
作者
梁军
潘军
解文中
赵滨
牛金印
Liang Jun;Pan Jun;Xie Wenzhong;Zhao Bin;Niu Jinyin(Long Products Division of Ma'anshan Iron and Steel Co.,Ltd.)
出处
《宽厚板》
2025年第4期1-5,共5页
Wide and Heavy Plate
基金
国家重点研发计划(2021YFB3401003)。
关键词
粒子钢压块
终点成分
供氧制度
金属收得率
含铁资源
Steel particle briquetting
End point composition
Oxygen supply time
Metal yield rate
