金属学报  1997, Vol. 33 Issue (7): 718-728

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含碳球团—铁浴熔融还原法关键技术的应用基础研究

杜挺;杜昆

冶金工业部钢铁研究总院;北京;100081;冶金工业部钢铁研究总院;北京;100081

APPLICATION-BASIS STUDY OF KEY TECHNOLOGIES IN CARBON-BEARING PELLETS-IRON BATH SMELTING REDUCTION PROCESS

DU Ting;DU Kun (Central Iron & Steel Research institute; Ministry of Metallurgical Industry; Beijing 100081)

杜挺;杜昆. 含碳球团—铁浴熔融还原法关键技术的应用基础研究[J]. 金属学报, 1997, 33(7): 718-728.
, . APPLICATION-BASIS STUDY OF KEY TECHNOLOGIES IN CARBON-BEARING PELLETS-IRON BATH SMELTING REDUCTION PROCESS[J]. Acta Metall Sin, 1997, 33(7): 718-728.

摘要 参考文献 相关文章 Metrics 全文: PDF(1046 KB)   摘要: 系统研究了以非焦煤粉和铁精矿粉为基础的含碳球团—铁浴熔融还原新流程的关键技术解决了冷团结合碳球团高温强度问题，提出了含碳球团自还原动力学模型、再氧化机理和提高球团预还原速度、抗氧化能力的技术措施和参数，研制出了具有高配碳量、高强度、高自还原速度、高预还原速度、高抗氧化能力的新型含碳球团．同时，研究了合碳球团在铁浴中熔化还原动力学参数，优化得到了控制还原速度、终还原率、熔渣中最低FeO含量、泡沫渣、铁浴碳含量及脱硫的工艺参数 关键词 ： 含碳球团,  预还原,  终还原,  铁浴,  熔融还原     Abstract：The key technologies in carbon-bearing pellets-iron bath smelting reduction process have been studied systematically, which is based on using non-coke coal and iron concentrate. The experimental research has made a break through in solving problem in high temperature strengh of carbon--bearing pellets, which had not been solved during a long time domestically and abroad. The self-reduction kinetic model of carbon-bearing pellets, reoxidation mechanism and the technical measures for speeding up the prereduction rate and improving the resistant properties against the oxidation of the pellets have been put forward. The new carbon-bearing pellets of high carbon content, high strength, high self-reduction rate and high resistance to oxidation have been developed succesfully. Meanwhile, the melting and reduction kinetics of the pellets in iron bath has been studied. The optimized process parameters of contraling the reduction rate, final reducibility, carbon content in hot metal and desulphurisation have been obtained. Key words： carbon-bearing iron ore pellet    pre-reduction    final reduction    iron bath    smelting reduction 收稿日期: 1997-07-18      基金资助:国家自然科学基金!9589010－04;;冶金工业部钢铁研究总院资助!890190 服务 把本文推荐给朋友 加入引用管理器 E-mail Alert RSS 作者相关文章 杜挺 杜昆 44.8K 链接本文: https://www.ams.org.cn/CN/      或      https://www.ams.org.cn/CN/Y1997/V33/I7/718 1杜挺,邓开文.钢铁冶炼新工艺.北京:北京大学出版社,1994:1,16,141,147 2杜挺.钢铁,1992;27(1):67 3杜挺.钢铁,1993;28(9):82 4熔融还原技术考察组.熔融还原工艺技术考察报告(内部资料),1995 5杜挺,牟慧妍.见:杜挺科技文集,北京:冶金工业出版社,1996:367 6McAdam G. D. Ironmaking Steelmaking, 1977; 4(1): 1 7周渝生.冶金工业部钢铁研究总院博士学位论文,1988 8杜昆.冶金工业部钢铁研究总院博士学位论文,1992 9郑丛杰.含碳球团在铁浴中熔融还原应用基础研究.冶金工业部钢铁研究总院博士学位论文,1995 10周取定,孔令坛.铁矿造块理论及工艺.北京:冶金工业出版社,1989:19 11 MichiganTechnologyUniversity.Skillingr‘MinRev,1986;75(15):4 12唐贤荣,李咸伟.烧结球团,1992;(2):1 13 Szekly Jf Karatas C. Metall Trans, 1978; 9B: 147Q [1] 黄典冰; 杨天钧 . 炼铁过程操作线图[J]. 金属学报, 2000, 36(2): 145-149 . [2] 罗廷和; 王铁; 曾小宁; 沙青; 肖志红 . 用等离子进行Cr-Ni精矿的熔融还原及合金化[J]. 金属学报, 1999, 35(7): 731-734 . [3] 徐匡迪;蒋国昌;张晓兵;徐建伦. 不锈钢母液铁浴熔融还原过程中的铬回收率及母液的氧化脱磷[J]. 金属学报, 1998, 34(5): 467-472. [4] 张丙怀;刘清才;李长伟;邹德余;孙锦彪. 钒钛磁铁矿熔融还原渣系中钒还原的热力学规律[J]. 金属学报, 1993, 29(5): 49-55. [5] 张丙怀;邹德余;金克和;刘清才. 钒钛磁铁矿熔融还原速度研究[J]. 金属学报, 1992, 28(1): 51-56. Viewed Full text Abstract Cited   Shared      Discussed