介绍了马钢120t转炉冶炼高硅铁水生产低碳低磷钢时,应用烟气分析动态控制炼钢技术。制定合适的装入、造渣、供氧制度,采用留渣双渣操作法,精确掌握倒渣时机,优化造渣过程和控制喷溅;确保终点w([P])低于0.012%,平均喷溅率由18.2%降低到5.1%,金属吹损由10.3%降低到8.2%,终点w([C])-t的命中率从81.5%提高到91.7%,实现优质低耗炼钢技术。 Introduced Maanshan Iron and Steel 120t converter smelting high silicon low-phosphorus steel, the application of flue gas analysis of dynamic control of steelmaking technology. Make proper loading, slagging and oxygen supply system, adopt double-residue slag-free operation method, accurately grasp the timing of slag discharge, optimize slagging process and control splashing; ensure that the end point w ([P]) is less than 0.012% Spray rate decreased from 18.2% to 5.1%, metal blow down from 10.3% to 8.2%, and end w ([C]) - t hit rate increased from 81.5% to 91.7% for high quality, low consumption steelmaking technology.