• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文会议>International congress on the science and technology of ironmaking >Smelting Reduction of Composite Pellets as Alternate Ironmaking
【24h】

Smelting Reduction of Composite Pellets as Alternate Ironmaking

机译：将复合颗粒冶炼减少作为交替的炼铁制药

获取原文
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Iron ore-coal composite pellets were prepared by cold bonding technique. Smelting reduction of iron ore-coal composite pellets has been carried out into liquid iron bath in an induction furnace at a temperature of 1723 ± 10 K with different Fe/C ratio. For 16-18 mm diameter pellets, it was observed that (i) the time required for complete dissolution in liquid iron bath is 83-90 seconds, (ii) the degree of reduction for 40 seconds of immersion varied from 68-87 pct for Jharia coal pellets and 73-92 pct for Bhilai coal pellets, and (Ⅲ) the fraction of reduction increases with decreasing Fe/C ratio and increasing immersion period. X-ray Diffraction (XRD) of reduced pellets showed that the reduction occurred topochemically. Scanning electron microscopic (SEM) examination of partially reduced pellets evinced the structural changes in pellets. The present investigation is focused to assess the effect of Fe/C ratio and time of pellet immersion in liquid iron bath on reduction of iron ore-coal composite pellets. An attempt is made that smelting reduction of iron ore-coal composite pellets can be used as an alternative ironmaking due to very faster reduction and smelting.
机译：铁矿石煤复合颗粒用冷粘结技术制备。铁矿石煤复合粒料的熔融还原已在1723±10的K具有不同的Fe / C比的温度下进行了成为液态铁熔池在感应炉中。 16-18毫米直径的小球，可以观察到（i）用于在液体铁熔池完全溶解所需要的时间是83-90秒，（ii）用于从68-87 PCT变化为浸渍40秒的减少程度贾里亚煤颗粒和73-92厘为Bhilai煤粒料，和（ⅲ）的随的Fe / C比和增加浸渍时间减少增加的分数。降低粒料的X射线衍射（XRD）表明，发生还原topochemically。部分还原的丸粒的扫描电子显微镜（SEM）检查明证以粒料的结构变化。本研究的重点是评估的Fe / C比和在还原铁矿石煤复合粒料的液体铁熔池丸浸渍的时间的效果。试图该铁矿石熔炼还原煤复合粒料可以被用作一个替代炼铁由于非常快速还原和熔炼。

著录项

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