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开发了一种一体式浸渍管真空槽,并对其进行了流体仿真和热力仿真。一体式浸渍管真空槽扩大了浸渍管内径,可明显提高RH钢液循环流量。流体仿真发现减小浸渍管的中心距并不影响钢液循环的流态,而且可以找到提升气最大有效流量。热力仿真可以提前发现结构的热变形,有利于结构优化。工程应用证明,一体式浸渍管真空槽能够满足真空精炼处理的要求,是实现小口缘钢包RH高效生产的有效技术。
An integrated dipping tube vacuum tank was developed and its fluid simulation and thermal simulation were carried out. Integrated immersion tube vacuum tank to expand the immersion tube diameter, can significantly improve the RH steel circulation flow. Fluid simulation found that reducing the center distance of the immersion pipe does not affect the flow of molten steel, and can find the maximum effective flow of lifting gas. Thermal simulation can find the thermal deformation of the structure in advance, which is beneficial to the structural optimization. The engineering application proves that the integral immersion tube vacuum tank can meet the requirements of vacuum refining treatment and is an effective technique for efficient production of small rim RH ladle.