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首页> 外文期刊>Ironmaking & Steelmaking >Study of optimal Ca-Si injection position in gas stirred ladle based on water model experiment and flow simulation
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Study of optimal Ca-Si injection position in gas stirred ladle based on water model experiment and flow simulation

机译：基于水模型实验和流动模拟的气体搅拌钢包最佳Ca-Si注入位置的研究

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A mathematical model based on a computational fluid dynamics technique named SOLA-SURF and the k-epsilon two equation turbulence model, and a water model that is one-quarter the scale of an actual ladle system, have been developed in the present study to find the optimal Ca-Si injection position for the ladle secondary refining process. Based on experimental measurements and observations from the water model and simulated results of the mathematical model, which has been verified by the experimental measurements, fluid flow phenomena and corresponding diffusion of the injected Ca-Si under various design and operating conditions have been investigated. The water model experiments and simulated results from the mathematical model for actual ladle operation show that, with an injection depth of 0.8 m and argon gas flowrate of 100, 200, and 300 L min~(-1), the optimal position for injection is located on the tuyere-circle centre plane, opposite side to the tuyere, and 0.5-0.8R away from the circle centre. For this injection position, the mixing time is shorter and the flow pattern favours transport of the additive to the bottom of the ladle.
机译：在本研究中，开发了一种基于计算流体动力学技术的数学模型，称为SOLA-SURF和k-epsilon两个方程湍流模型，以及一个水模型，它是实际钢包系统规模的四分之一。钢包二次精炼的最佳Ca-Si注入位置。基于对水模型的实验测量和观察以及数学模型的仿真结果（已通过实验测量验证），研究了在各种设计和操作条件下注入的Ca-Si的流体流动现象和相应的扩散。水模型实验和钢包实际运行数学模型的模拟结果表明，在注入深度为0.8 m且氩气流量为100、200和300 L min〜（-1）的情况下，最佳注入位置为位于风口圆心平面上，与风口相反，距圆心0.5-0.8R。对于该注射位置，混合时间较短，并且流型有利于添加剂向钢包底部的输送。

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