• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文会议>International Conference on Alternative Routes of Iron and Steelmaking ICARISM'99, Sep 15-17, 1997, Perth, WA >Smelting Reduction Studies: Scope and Limitations
【24h】

Smelting Reduction Studies: Scope and Limitations

机译：冶炼还原研究：范围和局限性

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

It is well accepted that the blast furnace will continue as the main route for iron-making for many more years. However, its limitations have motivated researchers to look for alternative routes, particularly, those where non-coking coal is used for liquid iron production. Smelting reduction (SR), where coal and oxygen are used to produce liquid iron and power is now receiving serious attention. Several smelting reduction reactors are now operating in pilot plant scale and one or two have reached commercial status. This paper presents a brief review of the scope and limitations of laboratory smelting reduction studies reported by various workers in the literature. Importance of different factors, eg types of slag melting systems, energy consumption, nature of raw materials, reductant, slag foaming, reaction kinetics, etc are briefly discussed. In SR technologies, substantial reduction of iron oxide takes place in molten slag phase and this results in generation of large amounts of gases in the reactor. Therefore, slag foaming and kinetics are two important aspects. Some results of an investigation carried out recently in this laboratory are also presented. The work has been carried out using 5 - 60 per cent FeO in slag in a 35 kW capacity plasma reactor. The reduction is carried out using solid carbon as reductant, carbon being drawn from the graphite crucible only. A few experimental data on reduction by coal and pig iron are also reported. Included is a special discussion on uncertainties present in a study of this type. The paper also presents some other studies of industrial relevance which exploit iron oxide reduction in the slag phase.
机译：众所周知，高炉将继续作为炼铁的主要途径已有很多年了。但是，其局限性促使研究人员寻找替代路线，特别是那些使用非炼焦煤生产铁水的路线。如今，利用煤和氧气生产铁水和发电的冶炼还原（SR）受到了严重关注。现在有几座冶炼还原反应器正在中试规模运行，其中一两个已达到商业化状态。本文简要回顾了文献中各种工人报告的实验室冶炼还原研究的范围和局限性。简要讨论了不同因素的重要性，例如熔渣熔化系统的类型，能耗，原料性质，还原剂，熔渣起泡，反应动力学等。在SR技术中，熔融炉渣相中的氧化铁大量还原，这导致在反应器中产生大量气体。因此，矿渣起泡和动力学是两个重要方面。还介绍了最近在此实验室中进行的调查的一些结果。这项工作是在容量为35 kW的等离子反应堆中使用5％至60％的炉渣中的FeO进行的。使用固体碳作为还原剂进行还原，碳仅从石墨坩埚中抽出。还报道了一些关于煤和生铁还原的实验数据。其中包括对此类研究中存在的不确定性的特别讨论。本文还提出了其他与工业相关性的研究，这些研究利用了炉渣相中的氧化铁还原。

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