• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>ISIJ international >Influence of Ore Reducibility on Reaction Behavior of Ore Bed Mixed with Coal Composite Iron Ore Hot Briquettes
【24h】

Influence of Ore Reducibility on Reaction Behavior of Ore Bed Mixed with Coal Composite Iron Ore Hot Briquettes

机译：矿石可还原性对混合煤铁矿石球团矿床反应性能的影响

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Reaction behavior of a packed bed consisting of reagent pellets A or iron ore mini pellets B and coal composite iron ore hot briquettes was examined under the blast furnace simulated conditions until 1 200°~C.As a result, it was found that reducibility of the mixed bed is governed by reducibility of pellets, whereas gasification of briquettes in the mixed bed is hardly governed by it. However, promotion effects for reduction and gasification of the mixed beds were recognized for both pellets around 1 050c~C, where abnormal swelling of the easier reduced pellet A occurred remarkably with fine fibrous irons, showing a noticeable pressure drop through the bed. It was suggested that this swelling would be caused by gas-eous sulfur derived from coal char in the briquettes.The mixed beds provided larger final shrinkage of the beds than the individual beds probably due to increment of the coupling reactions between reduction and gasification.It was concluded that reducibility of the pellet could influence not only the reducibility of the mixed bed but also the overall reaction behavior such as gas permeability and softening.
机译：在高炉模拟条件下直至1 200°C的温度下，检查了由试剂颗粒A或铁矿石微型颗粒B和煤复合铁矿石热团块组成的填充床的反应行为。结果发现，还原性混合床由粒料的还原性决定，而混合床中的团块气化几乎不受它的控制。然而，在1050℃附近，两种粒料都对混合床的还原和气化有促进作用，其中较易还原的粒料A的异常溶胀在细纤维铁的作用下显着发生，表明整个床的压降明显。有人认为这种膨胀是由煤球中煤焦中生成的气态硫引起的。混合床比单个床具有更大的最终收缩率，这可能是由于还原和气化之间耦合反应的增加所致。得出的结论是，粒料的还原性不仅会影响混合床的还原性，还会影响整体反应行为，例如气体渗透性和软化。

著录项

  • 来源
    《ISIJ international》 |2011年第8期|p.1255-1261|共7页
  • 作者

    Hironori SUZUKI; Hiroyuki MIZOGUCHI; Shoji HAYASHI;

  • 作者单位

    Graduate Student, Graduate School of Materials Engineering, Nagoya Institute of Technology, Gokiso-cho, Showa-ku,Nagoya, 466-8555 Japan;

    Graduate Student, Graduate School of Materials Engineering, Nagoya Institute of Technology, Gokiso-cho, Showa-ku,Nagoya, 466-8555 Japan;

    Graduate School of Materials Engineering, Nagoya Institute of Technology, Gokiso-cho, Showa-ku, Nagoya, 466-8555 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

    mixed packed bed; coal composite iron ore hot briquette; ore reducibility; blast furnace sim-ulated reaction behavior;

    机译：混合床煤复合铁矿石热压块;矿石还原性高炉模拟反应行为;

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号