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铁水预处理与纯净钢冶炼(一) 总被引:4,自引:0,他引:4
铁水预处理特别是铁水三脱处理技术自获得工业化应用以来,已成为纯净钢冶炼必不可少的最经济工序。综述了国内外铁水深度预处理以及转炉生产纯净钢冶炼工艺的发展现状和部分工业规模生产的操作结果,论述了铁水预处理对纯净钢生产的意义,分析了冶炼纯净钢的铁水深度预处理技术。认为在目前我国调整钢铁产业结构、开发品种、提高质量的关键时期,大力发展和推广铁水深度预处理技术,辅以钢水炉外精炼,必将为钢铁企业扩大纯净钢种冶炼、改善质量、降低成本、提高产品竞争力和附加值发挥巨大作用,带来显著经济效益。 相似文献
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通过对碳-氧反应机理的研究分析,对转炉冶炼低碳钢脱氧合金化工艺进行优化改进。优化后,转炉冶炼低碳铝镇静钢在出钢前期采用碳粉代替部分铝进行钢水预脱氧并且在出钢前期加入低价的高碳锰铁进行合金化,利用碳-氧反应脱除高碳锰铁中的碳。结果表明:铝块消耗平均降低了0.24 kg/t,锰铁合金成本降低了2.56元/t,取得了较好的经济效益。 相似文献
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《钢铁研究学报(英文版)》2011,(Z2):52-58
As the market demand for clean steel increased,a number of new technologies for clean steel production have been developed in some domestic and foreign steelmaking plants.Based on the existing equipments and technical conditions in the No.1 steelmaking plant of Ansteel,a series of clean steel technologies have been integrated including single bay duplex-dephosphorization in steelmaking control technology,high efficiency desulfurization technology,the control technology for nitrogen content during the whole process,the control technology for hydrogen content in VD,and the systematic control technology for oxygen content.A series of process for all kinds of ultra-low phosphorus,ultra-low sulfur and relative low level of inclusions have been designed in clean steel production.This process include hot metal desulfurization and slag-off,single bay duplex-dephosphorization in BOF,molten steel slag-off,LF processing,VD processing,and continuous casting with protection,then a stable,low-cost and large-scale production process has been formed.Applying this integrative technology,the sum of 5 major elements including phosphorus,sulfur,oxygen,nitrogen,hydrogen is less than 80×10-6 in high alloy steel scale production,and the industrial applications for clean steel technology have been achieved. 相似文献
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