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首页> 外文期刊>Journal Of The South African Institute Of Mining & Metallurgy >Effects of oolitic haematite ore additions on the compressive strength of iron ore pellets
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Effects of oolitic haematite ore additions on the compressive strength of iron ore pellets

机译：鲕状血液矿石添加对铁矿石颗粒抗压强度的影响

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摘要

The effects of oolitic haematite ore additions on the compressive strength of iron ore pellets were Investigated in a preliminary study. It was found that additions of oolitic haematite at levels of up to 15% by mass decreased the compressive strength from about 3250 N to 1729.1 N, which is below the minimum requirement of 2500 N for use in a blast furnace. As the oolitic haematite content increases, the Fe203 recrystallizes, forming frangible, unevenly distributed crystallites that are incompletely interlinked, thus reducing the compressive strength of the pellets. At the same time, as the oolitic haematite content is increased from zero to 15%, the porosity of the pellets increases from 13.11% to 19.85%, again resulting in a decrease in strength. It was found that the maximum amount of oolitic haematite should be 10% in order for the pellets to be suitable for blast furnace feed.
机译：在初步研究中研究了鲕粒盐酸矿石对铁矿石颗粒抗压强度的影响。 结果发现，在高达15质量％的水平下的鲕粒血液的添加降低了约3250 n至1729.1 n的抗压强度，低于2500n用于高炉的最低要求。 随着鲕粒含量含量的增加，Fe203重结晶，形成不完全相互互连的易碎，不均匀分布的微晶，从而降低粒料的抗压强度。 同时，随着鲕粒碘钛含量从0升至15％，粒料的孔隙率从13.11％增加到19.85％，再次导致强度降低。 发现最大量的鲕粒含量应为10％，以便颗粒适用于高炉饲料。

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    F. Yang; S.P. Zhang; T. Tang;

  • 作者单位

    Hubei Key Laboratory for Efficient Utilization and Agglomeration of Metallurgical Mineral Resources School of Resource and Environmental Engineering Wuhan University of Science and Technology China.;

    Hubei Key Laboratory for Efficient Utilization and Agglomeration of Metallurgical Mineral Resources School of Resource and Environmental Engineering Wuhan University of Science and Technology China.;

    Hubei Key Laboratory for Efficient Utilization and Agglomeration of Metallurgical Mineral Resources School of Resource and Environmental Engineering Wuhan University of Science and Technology China.;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 矿业工程;
  • 关键词

    iron ore; penalization; oolitic haematite ore; compressive strength.;

    机译：铁矿石;惩罚;鲕粒盐酸矿石;抗压强度。;

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