近年来,熔融还原技术已取得很大进展,但在熔态还原重要基础研究,如熔池的传热供热、传质等的研究还较薄弱。本文试图探讨球体位于熔池表面及涡流区内时,供气量、球体位置及初始直径对固液相对流传热系数的影响。为了研究熔态还原中金属球团在搅动熔池中的熔化及传热过程,本文以冰球—水体系为模型,通过求解一维非稳态动边界热传导方程,并结合水模型实验,考察了球体不在气泡流区时底 In recent years, great progress has been made in the melting reduction technique, but the research on the important basic research of molten reduction, such as the heat transfer, heat transfer and mass transfer of the molten pool, is still relatively weak. This paper attempts to investigate the influence of gas supply, sphere position and initial diameter on the relative heat transfer coefficient of solid-liquid when the sphere is located in the pool surface and swirling zone. In order to study the melting and heat transfer process of metal pellets in agitating molten pool during the reduction process, this paper takes the ice ball-water system as a model and solves the one-dimensional unsteady boundary heat conduction equation. Combined with the water model experiment, The sphere is not in the bubble flow zone at the end