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含锌粉尘氢还原低碳高值化新路线构建

滕飞 郭培民 朱德庆 龙红明 李凯 王磊 孔令兵

滕飞, 郭培民, 朱德庆, 龙红明, 李凯, 王磊, 孔令兵. 含锌粉尘氢还原低碳高值化新路线构建[J]. 钢铁钒钛, 2023, 44(5): 98-104. doi: 10.7513/j.issn.1004-7638.2023.05.015
引用本文: 滕飞, 郭培民, 朱德庆, 龙红明, 李凯, 王磊, 孔令兵. 含锌粉尘氢还原低碳高值化新路线构建[J]. 钢铁钒钛, 2023, 44(5): 98-104. doi: 10.7513/j.issn.1004-7638.2023.05.015
Teng Fei, Guo Peimin, Zhu Deqing, Long Hongming, Li Kai, Wang Lei, Kong Lingbing. A new low carbon high value route for hydrogen reduction of zinc containing dust[J]. IRON STEEL VANADIUM TITANIUM, 2023, 44(5): 98-104. doi: 10.7513/j.issn.1004-7638.2023.05.015
Citation: Teng Fei, Guo Peimin, Zhu Deqing, Long Hongming, Li Kai, Wang Lei, Kong Lingbing. A new low carbon high value route for hydrogen reduction of zinc containing dust[J]. IRON STEEL VANADIUM TITANIUM, 2023, 44(5): 98-104. doi: 10.7513/j.issn.1004-7638.2023.05.015

含锌粉尘氢还原低碳高值化新路线构建

doi: 10.7513/j.issn.1004-7638.2023.05.015
基金项目: 国家自然科学基金项目(52104297);山西省科技重大专项计划揭榜挂帅项目(ZDJB08)。
详细信息
    作者简介:

    滕飞,1987年出生,博士研究生,高级工程师,研究方向:烧结、球团,E-mail:13426292269@139.com

    通讯作者:

    郭培民,1975年出生,博士,教授级高工,博士生导师,研究方向:炼铁新技术,E-mail:guopm@pku.org.cn

  • 中图分类号: X757

A new low carbon high value route for hydrogen reduction of zinc containing dust

  • 摘要: 对国内外钢厂的含锌粉尘综合利用理论及技术进行了分析,火法还原工艺基于以煤为载体的高温碳冶金,能耗高、碳排放量大、污染严重是其难以回避的共性问题,同时还带来次氧化锌回收利用产生的能耗高、环境负荷大等新问题。根据团队以往研究经验,并结合目前国内外对低碳冶炼的新要求,提出了含锌粉尘氢还原低碳排放高值化利用技术思路:通过氢还原,将含锌粉尘中的铁和锌、铅、铋等有价金属还原,还原后的锌、铅、铋以气体形态被氢气载体带走,实现金属铁与有色金属的分离,含氢烟气再通过梯级冷凝分离锌、铅等有色金属。同时开展了含锌粉尘制备球团、氢还原理论和试验、含锌蒸汽分离理论分析及金属铁磁选等研究工作,为该技术思路的实施提供了坚实的基础。新技术有望实现钢厂含锌粉尘的低碳化冶炼,同时还可以得到附加值更高的金属锌及其它金属产品。
  • 图  1  回转窑处理含锌粉尘提锌流程

    Figure  1.  Zinc extraction process for treating zinc containing dust in rotary kiln

    图  2  转底炉处理钢厂含锌粉尘流程

    Figure  2.  Treatment of zinc containing dust in steel plant by rotary hearth furnace

    图  3  一种次氧化锌综合利用流程

    Figure  3.  A comprehensive utilization process of secondary zinc oxide

    图  4  钢厂含锌粉尘氢还原低碳高值化新思路

    Figure  4.  New idea of hydrogen reduction of zinc containing dust in steel plant

    图  5  含锌粉尘球团宏观形貌

    Figure  5.  Macromorphology of pellets containing zinc dust

    图  6  H2还原锌氧化物和铁氧化物的平衡气相组成

    Figure  6.  Equilibrium gas phase composition diagram of zinc oxide and iron oxide reduced by H2

    图  8  金属蒸汽与粉尘中氯化物和氟化物的平衡温度与含量关系

    Figure  8.  Relationship between equilibrium temperature and content of metal vapor and chlorides and fluorides

    图  7  氢还原后金属化球团的微观结构

    Figure  7.  Microstructure of metallized pellets after hydrogen reduction

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  • 收稿日期:  2023-05-29
  • 网络出版日期:  2023-11-04
  • 刊出日期:  2023-10-31

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