• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>ISIJ international >Heat transfer analysis and estimation of refractory wear in an iron blast furnace hearth using finite element method
【24h】

Heat transfer analysis and estimation of refractory wear in an iron blast furnace hearth using finite element method

机译：高炉炉膛耐火材料传热分析及有限元估算

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

The wear of hearth refractory by hot metal penetration and mechanical erosion is the limiting factor in the life of a blast furnace and their control and minimisation result in a direct benefit in an extended campaign. At the same time, it is difficult to directly measure the amount and location of hearth erosion during any campaign. Heat transfer mathematical model is an appropriate tool to quantify the amount of erosion based on the prediction of temperature profile particularly 1150 deg C freeze line isotherm in the hearth. In the present investigation, an axisymmetric conductive heat transfer model based on finite element method has been formulated and computer software is developed. Using the model and the computer code, temperature profile is predicted in the hearth zone of two different designs of industrial blast furnaces and maximum (worst) hearth wear has been estimated. The erosion pattern is calculated on the basis of worst-case location of 1150 deg C isotherm that can occur during the furnace campaign. Effects of hot metal temperature, cooling conditions and coke-bed states (floating and sitting) on temperature profile and refractory wear are also investigated.
机译：铁水渗透和机械腐蚀造成的耐火材料磨损是高炉寿命的限制因素，对它们的控制和最小化将直接导致高炉生产。同时，在任何运动中都难以直接测量炉膛侵蚀的数量和位置。传热数学模型是基于温度分布的预测，特别是炉膛中1150摄氏度冻结线等温线的预测来量化侵蚀量的合适工具。在本研究中，已经建立了基于有限元方法的轴对称导热模型，并开发了计算机软件。使用该模型和计算机代码，可预测两种不同设计的工业高炉炉床区域的温度曲线，并估算出最大（最坏）炉床磨损。根据在炉子运动期间可能发生的1150℃等温线的最坏情况下的位置来计算腐蚀方式。还研究了铁水温度，冷却条件和焦炭床状态（浮动和静置）对温度分布和耐火材料磨损的影响。

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