降低转炉终渣全铁的研究OA
Research on Reducing Total Iron in Converter Final Slag
针对120 t转炉终渣全铁(TFe)含量偏高(平均为18.5%)的问题,系统分析了原材料条件、供氧制度及造渣制度等因素对终渣TFe的影响.通过优化铁水扒渣(亮面率≥80%)、基于热平衡计算动态调控铁钢比、调整供氧强度(3.0～3.5 m³/(t·min))与枪位制度(四段式控制)、完善造渣制度(分钢种定量加料,采用"双渣+留渣"工艺)以及改进底吹强度等措施,终渣TFe含量由平均18.5%降至13.2%;同时,金属收得率提高2.3%,吨钢成本降低12元.研究结果可为同类型转炉降低终渣TFe含量提供参考.
To address the problem of high total iron(TFe)content in the final slag of a 120 t converter(averaging 18.5%),the effects of raw material conditions,oxygen supply practice,and slagging practice on TFe in the final slag were systematically analyzed.Through optimizing hot metal deslagging(bright surface ratio≥80%),dynamically regulating the hot metal-to-scrap ratio based on heat balance calculation,adjusting the oxygen supply intensity(3.0-3.5 m³/(t·min))and lance position practice(four-stage control),improving the slagging practice(quantitative addition by steel grade,adopting double-slag+slag-retaining process),and enhancing the bottom blowing in-tensity,the average TFe content in the final slag was reduced from 18.5%to 13.2%.Meanwhile,the metal yield was increased by 2.3%,and the cost per ton of steel was reduced by 12 RMB.The re-search results can provide a reference for reducing TFe content in the final slag of similar converters.
王勇;解文中;牛金印;孙波
马鞍山钢铁有限公司,安徽 马鞍山 243000马鞍山钢铁有限公司,安徽 马鞍山 243000马鞍山钢铁有限公司,安徽 马鞍山 243000马鞍山钢铁有限公司,安徽 马鞍山 243000
矿业与冶金
转炉终渣全铁供氧制度造渣制度底吹强度
total iron in converter final slagoxygen supply practiceslagging practicebottom blowing intensity
《冶金动力》 2026 (4)
1-5,5
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