Scholarlink

<p>Low-carbon ironmaking technology primarily aims to reduce carbon emission in blast furnaces. As the coke ratio decreases, the cohesive zone (CZ) in blast furnaces, which determines stable furnace operation, is inevitably affected, posing new challenges to burden descent, gas flow, and furnace operation. Therefore, a comprehensive understanding of CZ is essential for process optimization and industrial applications. Under this requirement, four major research approaches to investigating the CZ are introduced, including blast furnace dissection, high-temperature experiments, physical modeling, and numerical simulation. Dissection investigation provides direct evidence of CZ morphology and existence. High-temperature laboratory experiments offer insights into the softening–melting behavior and interaction of burden materials under simulated conditions. Physical modeling facilitates the understanding of burden descent and gas–solid interactions within the CZ. Furthermore, numerical simulation techniques,&#xa0;such as computational fluid dynamics (CFD), discrete element method (DEM), and coupled DEM–CFD models,&#xa0;are employed to simulate burden descent and softening–melting behavior, thereby providing valuable insights into the characteristics and dynamics of the CZ. The integration of experimental and modeling approaches has enhanced understanding of the softening–melting behavior in CZ.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Blast furnace cohesive zone: research methods, characteristics, and control under low-carbon conditions

  • 期刊论文

  • 发表日期：

    2026年6月1日

查看全文
  • Pei-Xiang Xu,
  • Qiang Li,
  • Wei-Hui Wen,
  • Cong Li,
  • Jing-Song Wang,
  • Guang Wang,
  • Hai-Bin Zuo,
  • Qing-Guo Xue

摘要

Low-carbon ironmaking technology primarily aims to reduce carbon emission in blast furnaces. As the coke ratio decreases, the cohesive zone (CZ) in blast furnaces, which determines stable furnace operation, is inevitably affected, posing new challenges to burden descent, gas flow, and furnace operation. Therefore, a comprehensive understanding of CZ is essential for process optimization and industrial applications. Under this requirement, four major research approaches to investigating the CZ are introduced, including blast furnace dissection, high-temperature experiments, physical modeling, and numerical simulation. Dissection investigation provides direct evidence of CZ morphology and existence. High-temperature laboratory experiments offer insights into the softening–melting behavior and interaction of burden materials under simulated conditions. Physical modeling facilitates the understanding of burden descent and gas–solid interactions within the CZ. Furthermore, numerical simulation techniques, such as computational fluid dynamics (CFD), discrete element method (DEM), and coupled DEM–CFD models, are employed to simulate burden descent and softening–melting behavior, thereby providing valuable insights into the characteristics and dynamics of the CZ. The integration of experimental and modeling approaches has enhanced understanding of the softening–melting behavior in CZ.