• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>ISIJ international >Effective Desiliconization Method with Swirling Flow of Hot Metal at Blast Furnace Casthouse
【24h】

Effective Desiliconization Method with Swirling Flow of Hot Metal at Blast Furnace Casthouse

机译：高炉铸铁厂铁水回旋的有效除硅方法

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

摘要

Hot metal desiliconization is carried out by adding iron oxide at a tilting runner in a blast furnace casthouse to improve BOF operation. Aiming at effective silicon removal by enhancing mixing of desiliconizing agent and hot metal, desiliconization experiments at an actual blast furnace casthouse was performed with the tilting runner that was specially designed to generate swirling flow of hot metal.1. Amount of silicon removed from the hot metal through the entire desiliconization operation was larger under the swirling flow condition of hot metal compared with conventional non-swirling one.2. Hot metal samples taken at the exit of the tilting runner showed that change in silicon content of hot metal in the tilting runner was larger with swirling condition.3. Hot metal samples were also taken from the torpedo car, and desiliconization behavior in a transient basin part of the torpedo car was evaluated. Calculated silicon content in the basin part was lower with swirling condition.4. A reaction analysis was made assuming that present system is a semi-batch reactor. Reaction rate constant of desiliconization through the swirling part of the tilting runner and the basin part of the torpedo car was 2.2 times higher with swirling condition. This result qualitatively agrees with the results of previous 5 ton hot metal experiments and reflects enhanced mixing of desiliconizing agent and hot metal by swirling flow in an industrial-scale operation.
机译：铁水的脱硅是通过在高炉铸造车间的倾斜浇道中添加氧化铁来进行的，以改善BOF的操作。为了通过增强去硅剂与铁水的混合来有效地去除硅，使用专门设计用于产生铁水回旋流的倾斜流道，在实际的高炉铸造车间进行了去硅实验。与传统的非旋流合金相比，在铁水的旋流条件下，通过整个脱硅操作从铁水中去除的硅量更大。倾斜流道出口处的铁水样品表明，在旋转条件下，倾斜流道中铁水的硅含量变化较大。3。还从鱼雷车中提取了铁水样品，并评估了鱼雷车瞬态盆部分的去硅行为。盘旋条件下，盆部硅含量较低。4。假设本系统为半间歇反应器，进行了反应分析。在旋转条件下，通过倾斜流道的旋流部分和鱼雷车的盆部的脱硅反应速率常数是2.2倍。该结果在质量上与先前的5吨铁水实验结果相符，并且反映了在工业规模操作中通过旋流提高了脱硅剂和铁水的混合。

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