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Effect of Modeling Flows on Mixing Time in 40t Ladle with Bottom Gas Blowing Process

机译：底吹工艺模拟流量对40t钢包混合时间的影响

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Base on the generalized similarity principle, water model experiments had been conducted to investigate mixing phenomena of argon injection from the ladle bottom with eight types of tuyere arrangement. In this research, the harmonic number (H_0) was considered as an evaluating indicator and four variables were mainly investigated, which were the blowing position, aspect ratio, Froude number and gas flowrate. All of these parameters were dimensionless. Furthermore, A fitting equation was newly proposed for mixing time as a function of four influencing factors. As a result, It was showed that the arrangement of tuyeres has a great effect on mixing time in the ladle and a placement of single tuyere at 2/3R away from the bottom center gave the shortest mixing time.
机译：基于广义相似原理，进行了水模型实验，研究了从钢包底部注入氩气与八种风口布置的混合现象。本研究以高次谐波数（H_0）为评价指标，主要研究了吹炼位置，长宽比，弗洛德数和气体流量四个变量。所有这些参数都是无量纲的。此外，新提出了拟合方程，用于将混合时间作为四个影响因素的函数。结果表明，风口的布置对钢包中的混合时间有很大的影响，而在距底部中心2 / 3R处放置单个风口的混合时间最短。

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