选择乳状液滴作为模拟夹杂物, 利用水模型研究了RH装置内夹杂物的物理行为, 考察了处理时间、 提升气量、真空室内液面高度对夹杂物去除行为的影响规律. 结果表明: RH处理12 min能去除绝大部分模拟夹杂物; 处理24 min可将能够去除的 夹杂物几乎全部去除; 较大提升气量的去夹杂效果优于较小提升气量的去夹杂 效果, 但提升气量存在一个最佳值, 本实验为20 L/min; 真空室内的液面高度 也存在一个最佳值, 本实验为46 mm.
The effects of treatment time, lift gas flow rate and liquid height in vacuum vessel on inclusion removal in RH degasser were investigated by choosing emulsion drops simulated as inclusions in a water model. The results show that most of the inclusions can be removed after treatment for 12 min, and all the inclusions which can be removed almost disappeared from the system after treatment for 24 min. Larger lift gas flow rates seemed to be more efficient for inclusions removal and there is a lift gas flow rate for the best of inclusions removal (20 L/min for this work). The liquid height in vacuum vessel has also an optimized value for inclusions removal (46 mm for this work).
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