| 120t转炉第一次倒渣脱磷参数计算与工艺试验 |
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| 引用本文： | 张天旭,宋劲松,周东东,刘翔宇.120t转炉第一次倒渣脱磷参数计算与工艺试验[J].特殊钢,2020,41(2):25-27. |
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| 作者姓名： | 张天旭 宋劲松 周东东 刘翔宇 |
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| 作者单位： | 1承德石油高等专科学校工业技术中心，承德067000；
2北京科技大学钢铁共性技术协同创新中心，北京100083 |
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| 基金项目： | 河北省高等学校科学技术研究项目(QN2019227) |
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| 摘 要： | 通过脱磷与还原磷的平衡热力学研究,确定了120 t转炉双渣法冶炼低磷钢时最佳一次倒渣温度与碱度之间的关系。通过对磷分配比Lp计算,得到了1450℃下,碱度、(FeO)对其影响。结合热力学软件Factsage,得到最佳的脱磷渣碱度和(FeO)。计算表明,随着炉渣碱度的增大,最佳脱磷温度区间向高温区移动;1450℃下,最佳的第一次倒渣碱度为2,最佳(FeO)为20%～25%。
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| 收稿时间： | 2019-10-15 |
Calculation and Process Test for Dephosphorization Parameter of 120 t Converter |
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| Zhang Tianxu,Song Jingsong,Zhou Dongdong,Liu Xiangyu.Calculation and Process Test for Dephosphorization Parameter of 120 t Converter[J].Special Steel,2020,41(2):25-27. |
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| Authors: | Zhang Tianxu Song Jingsong Zhou Dongdong Liu Xiangyu |
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| Affiliation: | 1 Industrial Technology Centre, Chengde Petroleum College, Chengde 067000 ；
2 Collaborative Innovation Center of Steel Technology, University of Science and Technology Beijing, Beijing 100083 |
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| Abstract: | According to thermodynamics studying on the balance of dephosphorization and phosphorus reduction, the relationship between pouring temperature and slag basicity at first deslagging for double slag process in 120 t converter smelting low phosphorus steel has been difined. According to calculating phosphorus partition ratio Lp, it gets the influence of basicity、(FeO) on Lp at 1450 °C. and obtains the optimal dephosphorization slag basicity and (FeO) value through Factsage software. The calculation shows that with the increase of slag basicity, the optimal temperature ranges for dephosphorization move to high； the optimal basicity is 2 and (FeO) is 20% ~25% at 1450 °C for first deslagging process. |
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