Scholarlink

<p>With the reduction of high-grade copper sulfide ore resources, efficient and green oxygen-enriched side-blown melting pool melting technology has become a hot spot of copper metallurgy research. This paper focuses on the mixing efficiency and equipment loss, and through numerical simulation, we study the influence of oxygen delivery flow rate and oxygen lance inclination angle on the three-phase flow field of the melting bath, and construct a variety of evaluation systems, so as to achieve the simultaneous optimization of process parameters and equipment life. Research shows that the molten pool flow field is divided into a high-speed blowing zone and a circulating stirring zone, with the latter being the highly efficient reaction zone. Increasing the oxygen flow rate can significantly increase the interface area between the slag phase and other phases, as well as the eddy viscosity of the flow field. At 96&#xa0;m/s, the tracer distribution time is reduced to 1.0&#xa0;s. However, excessive flow rates can exacerbate melt splashing and expand the high-loss region where the dynamic pressure on the wall exceeds 125&#xa0;Pa. When the oxygen lance is positioned horizontally, the gas content of the molten pool and mixing efficiency are optimal, whereas a 10° tilt reduces the interface area and gas–liquid contact efficiency. Therefore, the final optimized solution is determined to be a horizontal oxygen lance with an oxygen flow velocity of 64&#xa0;m/s, which balances mixing efficiency and furnace lining life.</p> Graphical Abstract <p></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

Numerical Simulation of Mixing Efficiency and Furnace Lining Wear in Oxygen-Enriched Side-Blown Copper Smelting Furnaces

  • 期刊论文

  • 发表日期：

    2026年3月23日

查看全文
  • Chao Lv,
  • Ning Wei,
  • Jinxuan Yin,
  • Yang Liu,
  • Ming Wang,
  • Hongliang Zhao

摘要

With the reduction of high-grade copper sulfide ore resources, efficient and green oxygen-enriched side-blown melting pool melting technology has become a hot spot of copper metallurgy research. This paper focuses on the mixing efficiency and equipment loss, and through numerical simulation, we study the influence of oxygen delivery flow rate and oxygen lance inclination angle on the three-phase flow field of the melting bath, and construct a variety of evaluation systems, so as to achieve the simultaneous optimization of process parameters and equipment life. Research shows that the molten pool flow field is divided into a high-speed blowing zone and a circulating stirring zone, with the latter being the highly efficient reaction zone. Increasing the oxygen flow rate can significantly increase the interface area between the slag phase and other phases, as well as the eddy viscosity of the flow field. At 96 m/s, the tracer distribution time is reduced to 1.0 s. However, excessive flow rates can exacerbate melt splashing and expand the high-loss region where the dynamic pressure on the wall exceeds 125 Pa. When the oxygen lance is positioned horizontally, the gas content of the molten pool and mixing efficiency are optimal, whereas a 10° tilt reduces the interface area and gas–liquid contact efficiency. Therefore, the final optimized solution is determined to be a horizontal oxygen lance with an oxygen flow velocity of 64 m/s, which balances mixing efficiency and furnace lining life.

Graphical Abstract