Owing to the heat transfer from high-temperature liquid steel, the temperature of the coil in the electromagnetic induction controlled automated steel teeming (EICAST) system in the ladle is very high, seriously restricting the service life of the coil. A novel air-mist cooling method was adopted to reduce the coil temperature in this paper. Firstly, the air-mist generating device was optimized. The results reveal that the optimized air-mist generating device can improve the cooling effect dramatically. And then, the influence of water flow and gas flow on the cooling effect of the coil was analyzed. Both water flow and gas flow affect the final coil temperature and the cooling rate of the coil. The final coil temperature is seen to decrease with an increase in the water flow, and the cooling rate of the coil increases at the initial stage. When the gas flow increases, the final coil temperature does not change much, but the cooling rate of the coil is uncommonly promoted. Finally, a combined cooling method based on the thermal cycle process of the ladle was proposed. After this method, the final coil temperature is 255°C. Compared with air-mist cooling, the final temperature difference is not large, but the coil temperature is kept in a low level for a long time by using the combined cooling. These studies will promote the application of the EICAST technology which can reduce non-metallic inclusions in steels.

由于钢水的传热作用，钢包内电磁感应控制自动浇钢（EICAST）系统中的线圈温度很高，严重制约了线圈的使用寿命。本文采用一种新颖的气雾冷却方法来降低盘管温度。首先，对气雾发生装置进行了优化。结果表明，优化后的气雾发生装置可以显着提高冷却效果。然后，分析了水流量和气体流量对盘管冷却效果的影响。水流和气体流都会影响最终盘管温度和盘管的冷却速度。可以看到，随着水流量的增加，最终盘管温度降低，并且在初始阶段盘管的冷却速度增加。当气体流量增加时，最终盘管温度变化不大，但盘管的冷却速度却异常提升。最后提出了一种基于钢包热循环过程的联合冷却方法。使用此方法后，最终线圈温度为 255°C。与气雾冷却相比，最终温差不大，但采用联合冷却，使盘管温度长期保持在较低水平。这些研究将促进 EICAST 技术的应用，该技术可以减少钢中的非金属夹杂物。最终线圈温度为 255°C。与气雾冷却相比，最终温差不大，但采用联合冷却，使盘管温度长期保持在较低水平。这些研究将促进 EICAST 技术的应用，该技术可以减少钢中的非金属夹杂物。最终线圈温度为 255°C。与气雾冷却相比，最终温差不大，但采用联合冷却，使盘管温度长期保持在较低水平。这些研究将促进 EICAST 技术的应用，该技术可以减少钢中的非金属夹杂物。