Scholarlink

<p>The presence of a dense lead layer in the bath alters flow phenomena compared to typical bottom-blowing smelting or converting processes. This simulation utilizes CFD modeling to investigate the macroscopic flow behavior in a bottom-blown furnace for high-lead slag reduction under conditions of different tuyere angles. Results indicate that, unlike in typical SKS smelting furnaces and P–S converters with similar jetting systems, the high-speed air injected does not significantly influence the melt flows at the far side of the plume; instead, it primarily generates a small circulation area near the plume. The dense lead layer further constricts this circulation area, impeding flow and causing it to revert. Moreover, migration of low-flow velocity regions is observed, independent of the tuyere angle. This phenomenon contributes to the elimination of fixed dead zones. However, due to the relatively low overall volumetric flow rate, enhancing agitation remains necessary to improve the global mixing efficiency. This modeling study advances understanding of flow fields in bottom-blown reactors for copper and lead converting processes operating under low total gas volumetric velocities.</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

CFD Analysis of Melt Flow Under Lead Layer Constraint in a Bottom-Blown Furnace with Different Tuyere Angles

  • 期刊论文

  • 发表日期：

    2025年10月1日

查看全文
  • Yanxin Wu,
  • Fupeng Liu,
  • Kezhou Song,
  • Qihang Wu,
  • Feixiong Chen,
  • Chunfa Liao,
  • Hong Zeng

摘要

The presence of a dense lead layer in the bath alters flow phenomena compared to typical bottom-blowing smelting or converting processes. This simulation utilizes CFD modeling to investigate the macroscopic flow behavior in a bottom-blown furnace for high-lead slag reduction under conditions of different tuyere angles. Results indicate that, unlike in typical SKS smelting furnaces and P–S converters with similar jetting systems, the high-speed air injected does not significantly influence the melt flows at the far side of the plume; instead, it primarily generates a small circulation area near the plume. The dense lead layer further constricts this circulation area, impeding flow and causing it to revert. Moreover, migration of low-flow velocity regions is observed, independent of the tuyere angle. This phenomenon contributes to the elimination of fixed dead zones. However, due to the relatively low overall volumetric flow rate, enhancing agitation remains necessary to improve the global mixing efficiency. This modeling study advances understanding of flow fields in bottom-blown reactors for copper and lead converting processes operating under low total gas volumetric velocities.