| 降低脱磷铁水-60t AOD-LF-150mm x150mm CCM冶炼0Cr13钢全氧含量的生产实践 |
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| 引用本文： | 王百顺,冯文甫,郭键,叶凡新,马富平,曹红波.降低脱磷铁水-60t AOD-LF-150mm x150mm CCM冶炼0Cr13钢全氧含量的生产实践[J].特殊钢,2018,39(1):34-36. |
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| 作者姓名： | 王百顺 冯文甫 郭键 叶凡新 马富平 曹红波 |
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| 作者单位： | 邢台钢铁有限责任公司炼钢厂，邢台 054027 |
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| 摘 要： | 采用CO二次燃烧、3.5%~5.0%Si高碳铬铁、合金烘烤等热补偿技术,降低了800kg还原产物SiO2以提高Si的脱氧能力;AOD炉渣碱度控制在2.3~2.4,并在AOD二次还原、LF精炼过程配比5kg/t活性石灰,可提高脱氧、脱硫效率30%以上;在CaO-SiO2-MgO渣系（CaO）/（SiO2）=2.2时,萤石的加入量控制在石灰总量的13%~17%时,炉渣粘稠度较好,对化渣、吸附夹杂有利,使Φ5.5mm线材全氧含量由优化前60×10-6~90×10-6降至30×10-6~40×10-6,S含量由原0.005%~0.010%降至0.003%~0.007%。
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| 关 键 词： | 60tAOD 精炼渣系 全氧含量 生产实践 |
| 收稿时间： | 2017-08-07 |
Production Practice of Decreasing Total Oxygen Content in Steel 0Crl3 Steelmaking by Dephosphorized Metal -60 t AOD-LF-150mm x150mm CCM |
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| Wang Baishun,Feng Wenfu,Guo Jian,Ye Fanxin,Ma Fuping,Cao Hongbo.Production Practice of Decreasing Total Oxygen Content in Steel 0Crl3 Steelmaking by Dephosphorized Metal -60 t AOD-LF-150mm x150mm CCM[J].Special Steel,2018,39(1):34-36. |
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| Authors: | Wang Baishun Feng Wenfu Guo Jian Ye Fanxin Ma Fuping Cao Hongbo |
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| Affiliation: | Steelmaking Workshop, Xingtai Iron and steel Corp Ltd, Xingtai 054027 |
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| Abstract: | With the thermal compensation technology including using CO secondary burning, 3.5% ~5.0% Si high carbon ferrochromium and alloys baking, the reduced product SiO, decreases by 800 kg to increase the deoxidation ability of silicon； with controlling AOD slag basicity 2.3~2.4 and carried out secondary reduction in AOD refining, and adding 5 kg/t active lime in LF refining process, the efficiency of deoxidation and desulphurization increases by more than 30% ； and with ( CaO)/( SiO2)= 2.2 of CaO-SiO2-MgO slag series controlling adding amount of fluorite amounting to 13%~17% of the total lime to get better slag viscosity and be available to slagging and absorbing inclusions, the total oxygen content in Φ5.5 mm wire rod decreases to 30 x 10-6 ~ 40 x 10-6 from 60 x 10-6~ 90 x 10-6 before optimization and the S content decreases to 0.003% ~0.007% from original 0.005% ~ 0.010% . |
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