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Quantitative Evaluation of Effect of Hyper-coal on Ferro-coke Strength Index

机译：定量评价高煤对铁焦强度指标的影响

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摘要

The relationship between the strength and the microstructure of ferro-coke with hyper-coal (HPC) addition is investigated. In particular, we focused on the adhesiveness of coal particles. The strength of ferro-coke was evaluated by a tensile strength test and coke microstructure with increasing the amount of HPC addition was observed. In the observation of the microstructure, absolute maximum length and roundness of pores were measured. The result indicated that the strength of ferro-coke increases with an increase in the amount of HPC, because voids between coal particles decrease and adhesiveness of coal particles improve. A pore roundness of less than 0.2 intends coke strength, and the index decreases with HPC addition. We found that a pore roundness of less than 0.05 is included in voids between coal particles. It is suggested that mutual adhesiveness of coal particles is one of the factors affecting coke strength, and this factor can be evaluated by pores of roundness less than 0.05.
机译：研究了添加高煤（HPC）的铁焦强度与微观结构之间的关系。特别地，我们专注于煤颗粒的粘附性。通过拉伸强度试验评价铁焦炭的强度，并且观察到随着HPC添加量的增加焦炭显微组织。在观察微观结构时，测量了孔的绝对最大长度和圆度。结果表明，铁炭的强度随着HPC含量的增加而增加，这是因为煤颗粒之间的空隙减少，煤颗粒的粘附性提高。小于0.2的气孔圆度意味着焦炭强度，并且该指数随着HPC的添加而降低。我们发现，煤颗粒之间的空隙中孔隙度小于0.05。认为煤颗粒的相互粘附性是影响焦炭强度的因素之一，该因素可以通过小于0.05的圆度的孔来评估。

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  • 来源
    《ISIJ international》 |2013年第3期|403-410|共8页
  • 作者

    Ataru UCHIDA; Tetsuya KANAI; Yoshiaki YAMAZAKI; Kenichi HIRAKI; Yasuhiro SAITO; Hideyuki AOKI; Nobuyuki KOMATSU; Noriyuki OKUYAMA; Maki HAMAGUCHI;

  • 作者单位

    Graduate School of Engineering, Tohoku University, 6-6-07, Aoba, Aramaki, Aoba-ku, Sendai, 980-8579 Japan;

    Graduate School of Engineering, Tohoku University, 6-6-07, Aoba, Aramaki, Aoba-ku, Sendai, 980-8579 Japan;

    Graduate School of Engineering, Tohoku University, 6-6-07, Aoba, Aramaki, Aoba-ku, Sendai, 980-8579 Japan;

    Graduate School of Engineering, Tohoku University, 6-6-07, Aoba, Aramaki, Aoba-ku, Sendai, 980-8579 Japan;

    Graduate School of Engineering, Tohoku University, 6-6-07, Aoba, Aramaki, Aoba-ku, Sendai, 980-8579 Japan;

    Graduate School of Engineering, Tohoku University, 6-6-07, Aoba, Aramaki, Aoba-ku, Sendai, 980-8579 Japan;

    KOBE STEEL, LTD., 2-3-1, Shinhama, Arima-cho, Takasago, Hyogo, 676-8670 Japan;

    KOBE STEEL, LTD., 2-3-1, Shinhama, Arima-cho, Takasago, Hyogo, 676-8670 Japan;

    KOBE STEEL, LTD., 2-3-1, Shinhama, Arima-cho, Takasago, Hyogo, 676-8670 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

    ferro-coke; hyper-coal; coke strength; microstructure; pore roundness;

    机译：铁焦超级煤焦炭强度微观结构孔圆度;

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