In this study, the removal effects of soluble gas floatation technology (SGFT) on inclusions with different characteristics were studied by using a self-made water model experimental device and Coulter counter. The water/CO₂ system was used to simulate the molten steel/(H₂, N₂) system, and PP, PE and ABS particles were used to simulate the inclusions in molten steel. The experimental results show that this technology has good removal effects on particles with different characteristics. A large amount of fine bubbles can be formed when adding particles via heterogeneous nucleation, while no bubbles were formed without adding particles due to lack of nucleation cores. The removal rate of the particles increases with the increase of particle number. The size of the particles has a significant impact on its removal effect that the removal rate increases with the increase of particle size. The Ostwald ripening may appear on the bubble nucleation process on the surface of large particles, which can promote floating behavior and removal effect of the particles. The particles with different contact angles can be removed effectively by soluble gas floatation technology (SGFT), while the removal effect of particles with large contact angles is better.

在这项研究中，使用自制的水模型实验装置和库尔特计数器研究了可溶性气体浮选技术（SGFT）对不同特征的夹杂物的去除效果。使用水/ CO ₂系统模拟钢水/（H ₂，N ₂）系统，并使用PP，PE和ABS颗粒模拟钢水中的夹杂物。实验结果表明，该技术对不同性质的颗粒具有良好的去除效果。当通过非均相成核添加颗粒时，会形成大量细小气泡，而由于缺乏成核芯，如果不添加颗粒则不会形成气泡。颗粒的去除率随着颗粒数量的增加而增加。颗粒的尺寸对其去除效果具有显着影响，即去除速率随颗粒尺寸的增加而增加。奥斯特瓦尔德熟化可能出现在大颗粒表面的气泡成核过程中，这可以促进颗粒的漂浮行为和去除效果。