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首页> 外文期刊>ISIJ international >Technology for Productivity Improvement of Sintering Based on Designing of Composite Granulation and Bed Structure of Sinter Mixture
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Technology for Productivity Improvement of Sintering Based on Designing of Composite Granulation and Bed Structure of Sinter Mixture

机译：基于复合造粒和混合料床结构设计的烧结生产率提高技术

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摘要

Recently, an increase in the amount of fine ore, such as Marra Mamba or Brazilian concentrated ultra fine, in raw material of sinter ore lowers the permeability of sintering bed and the yield of the sinter ore. The collapse of voids in the sintering bed will cause these problems although the bed has a porous structure. Therefore, controlling the bed structure by including loosely packed regions and densely packed regions in the same packed bed has been discussed. This new idea is named MEBIOS (Mosaic Embedding Iron Ore Sintering). In this report, permeability improvement techniques based on MEBIOS concept were studied. In order to granulate large dense green balls with ordinary sinter feed ore, mathematical simulation and granulation tests by using pan pelletizers were carried out. The influence of rim height and pan diameter on movement of raw material in pan was investigated. Also, influence of rim height and slope angle on hold-up and influence of residence time on diameter of green balls were studied. Finally, this technique was installed in Wakayama No. 5 sinter plant. As a result, yearly average productivity of 1.41 t/m~2/h and the use of 135 kg/t-sinter Brazilian concentrated ultra fine ore were achieved with 1 350 MJ/t-sinter heat consumption for sintering in 2011.
机译：近来，在烧结矿的原料中增加诸如Marra Mamba或巴西浓缩超细矿等细矿的量降低了烧结床的渗透性和烧结矿的产率。尽管烧结床具有多孔结构，但空隙在烧结床中的塌陷将引起这些问题。因此，已经讨论了通过在同一填充床中包括松散填充区域和密集填充区域来控制床结构。这个新想法被命名为MEBIOS（镶嵌铁矿石烧结）。在本报告中，研究了基于MEBIOS概念的渗透性改善技术。为了用普通的烧结进料矿石将大的致密生球造粒，使用盘式造粒机进行了数学模拟和造粒试验。研究了轮辋高度和锅盘直径对锅内原料运动的影响。此外，研究了轮辋高度和倾斜角度对保持力的影响以及停留时间对生球直径的影响。最后，这项技术被安装在和歌山第5烧结厂。结果，2011年的烧结年平均热量为1.41 t / m〜2 / h，使用了135 kg / t烧结矿的巴西浓缩超细矿，烧结时的热量消耗为1 350 MJ / t烧结矿。

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  • 来源
    《ISIJ international》 |2013年第9期|1497-1502|共6页
  • 作者

    Chikashi KAMIJO; Masaki HARA; Yasuhide YAMAGUCHI; Masahide YOSHIKAWA; Junya KANO; Masaru MATSUMURA; Takazou KAWAGUCHI;

  • 作者单位

    Technical Research & Development Bureau, Nippon Steel & Sumitomo Metal Corporation, 20-1 Shintomi, Futtsu, Chiba, 293-8511 Japan;

    Technical Research & Development Bureau, Nippon Steel & Sumitomo Metal Corporation, 20-1 Shintomi, Futtsu, Chiba, 293-8511 Japan;

    Technical Research & Development Bureau, Nippon Steel & Sumitomo Metal Corporation, 20-1 Shintomi, Futtsu, Chiba, 293-8511 Japan;

    Wakayama Steel Works, Nippon Steel & Sumikin Koutetsu Corporation, 1850 Minato, Wakayama,Wakayama, 640-8555 Japan;

    Tohoku University, 2-1-1, Katahira, Aoba-ku, Sendai, Miyagi, 980-8577 Japan;

    Technical Research & Development Bureau, Nippon Steel & Sumitomo Metal Corporation, 20-1 Shintomi, Futtsu, Chiba, 293-8511 Japan;

    Technical Research & Development Bureau, Nippon Steel & Sumitomo Metal Corporation, 20-1 Shintomi, Futtsu, Chiba, 293-8511 Japan;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    sinter; MEBIOS; concentrate; fine; green ball; pan pelletizer; separate granulation;

    机译：烧结MEBIOS;浓缩;精细;绿球盘式切粒机单独制粒;

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