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为了研究长水口浸入深度对钢水流动和钢水质量的影响,在等比例中间包水模中完成了物理和数学模拟。在等比例中间包水模中,在各种不同水口浸入深度条件下,完成了卷渣试验。采用聚乙烯玻璃粉(920 Kg/m~3)模拟炉渣相,并且在换包过程中搜集每个浸入深度条件下,借助卷渣说明其相对性能。开发了一个三维数学模型、并且在各种不同大包长水口浸入深度条件下,检测湍流等高线(湍流动能(TKE)等高线)。当浸入深度位置较低时,中间包内的湍流现象较为严重,结果导致更多的卷渣。与之相反,当浸入深度位置较高时,中间包内的湍流现象较轻,由此产生的卷渣数量也较少。因此,采用长水口浸入位置较高的中间包操作可能取消湍流抑制器的使用,并降低耐火材料的消耗和成本。
In order to study the effect of the depth of the shroud on the flow of molten steel and the quality of the molten steel, physical and mathematical simulations were performed in an equal-proportion tundish. In the equal-proportion tundish mold, the entrapment test was completed under various immersion depths. A glass frit (920 Kg / m 3) was used to simulate the slag phase and the entrapment was used to characterize the relative performance of the slag phase, with each immersion depth collected during the changeover process. A three-dimensional mathematical model was developed and turbulence contours (turbulent kinetic energy (TKE) contours) were tested under various immersion depths for large bales. When the depth of immersion is low, the turbulence in the tundish is more serious, resulting in more entrapped slag. In contrast, turbulence in the tundish is less pronounced when the depth of immersion is higher, resulting in less amount of dross. As a result, tundish operation with a high-water inlet immersion location may eliminate the use of turbulence suppressors and reduce refractory material consumption and costs.