Abstract: Based on turbulent model and VOF model, the numerical simulation and analysis on gas-slag-liquid three- phase flow field in 210 t ladle furnace (LF) during argon blowing have been carried out by using CFD fluid engineering simulation software FLUENT6. 3.26 to get the effect of bottom blowing porous plug position (single center plug, single eccentric plug and double plugs) and argon flow rate (100 ~500 L/min) on behavior of liquid circle flow, size of slag eye and slag entrapment. Study results show that with different bottom porous plug position the liquid mixing speed and size of slag eye are different; the slag is easily entrapped by liquid at slag eye； the stagnation zone with double plugs bottom blowing is quite small than that with single plug bottom blowing； the more argon flow rate the more dimension of slag eye, as diameter of slag eye is more than 611 mm the change of dimension of slag eye is small ； the suitable argon flow rate for 210 t ladle with double plugs bottom blowing is 200 〜300 L/min.

摘要： 基于湍流模型和VOF模型,通过CFD流体工程模拟软件FLUENT6.3.26,对吹氩过程210 t钢包炉(LF)内气、渣、钢液三相流场进行了数值模拟和分析,得出底吹氩孔位(单孔中心,单孔偏心,双孔)和氩气流量(100~500 L/min)对钢液循环流动、渣眼尺寸和卷渣等行为的影响。研究显示,单孔底吹钢包的孔位不同,混合速度和渣眼尺寸不同;渣眼处易卷渣;双孔底吹比单孔底吹死区小得多;氩气流量越大渣眼越大,但渣眼尺寸大于611mm时,其尺寸变化不大;210 t钢包的双孔底吹钢包内合适的吹氩量为200~300 L/min。

关键词: 210 t LF, 数值模拟, , 气、渣、钢液三相流场, VOF模型, 渣眼, 氩气流量