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氧化法冶炼高纯生铁的杂质元素脱除与控制
Removal and Control of Impurity Elements in High Purity Pig Iron Smelted by Oxidation
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- DOI:
- 作者:
- 杨凯 赵俊学 施瑞盟 薛佳奇 杨卫轩 王玉英 赵良江 武会卿
YANG Kai;ZHAO Junxue;SHI Ruimeng;XUE Jiaqi;YANG Weixuan;WANG Yuying;ZHAO Liangjiang;WU Huiqing
- 作者单位:
- 西安建筑科技大学冶金工程学院 山西建邦集团铸造有限公司
The School of Metallurgical Engineering,Xi′an University of Architecture and Technology,Xi'an 710055,China;Casting Company Ltd of Shanxi Jianbang Group,Houma 043000,China
- 关键词:
- 高纯生铁 杂质元素控制 铁液“三脱”
high-purity pig control of impurity elements hot metal pretreatment
- 摘要:
- 基于理论计算及相关试验和生产数据,对氧化法生产高纯生铁过程中高炉冶炼+铁水"三脱"(脱[S]、脱[Si]、脱[P])工艺进行了分析,对高纯生铁需控制的杂质元素在该工艺中的脱除情况进行了讨论。结果表明,在铁水"三脱"中,Al、B、Ti、Cr、Mn容易脱除至较低含量,As可微量脱除;与精料法相比,可降低生产成本。"三脱"后的铁水熔点升高,流动性变差,对其浇注成形有明显影响。On the basis of theoretical calculation and relevant test and production data,the"three delamination"([S],[Si],[P])process of blast furnace smelting+molten iron in the process of oxidizing production of high purity pig iron was analyzed,and the removal of impurity elements that need to be controlled in this process was discussed.The results show that Al,B,Ti,Cr and Mn are easily removed to a low level,while As is slightly removed.Compared with the concentrate method,the production cost can be reduced.The melting point of molten iron increase and its fluidity become worse after"three delamination",which has obvious influence on its casting.