气泡尾流去除钢液中夹杂物机理的水模型研究

特殊钢 ›› 2014, Vol. 35 ›› Issue (1): 15-18.

气泡尾流去除钢液中夹杂物机理的水模型研究

杨虎林^1,2, 何平¹, 翟玉春²

1钢铁研究总院冶金工艺研究所，北京100081 ；
2东北大学材料与冶金学院，沈阳110004

收稿日期:2013-08-21 出版日期:2014-02-01 发布日期:2022-09-05
作者简介:杨虎林(1986-)，男，钢铁研究总院冶金工艺所博士研究生，精炼理论和工艺技术研究。

A Study of Water Modelling on Mechanism of Removal of Inclusions in Molten Steel by Bubble Wake

Yang Hulin^1,2, He Ping¹ , Zhai Yuchun²

1 Metallurgical Technology Research Department, Central Iron and Steel Research Institute, Beijing 100081 ；
2 School of Materials and Metallurgy, Northeastern University, Shenyang 110004

Received:2013-08-21 Published:2014-02-01 Online:2022-09-05

摘要/Abstract

摘要： 采用水模型和高速摄像机研究了气泡尾流去除夹杂物的过程,分析了气泡尾流去除夹杂物的规律和气泡大小及夹杂物的尺寸和浓度对气泡尾流去夹杂的影响。结果表明,气泡尾流有利于促进夹杂物上浮;气泡尾流中存在尾流边界区和上升区;尾流去除夹杂物的过程分为3个子过程:(1)夹杂物靠近和进入气泡尾流边界区产生扰动;(2)进入气泡尾流上升区和(3)夹杂物继续上升或脱离气泡尾流上升区;气泡直径D_b和粒子浓度C_p增大有利于尾流去夹杂;粒子直径D_p越小越容易被尾流去除。

Abstract: The removing process of inclusions by bubble wake in steel has been studied by using water model and high-speed video recorder and the rule of inclusions removing through bubble wake and the effect of bubble size and inclusion size and concentration on inclusions removing by bubble wake are analyzed. Results show that the bubble wake is favourable to promote the inclusions floating off； there are boundary zone and rising zone in bubble wake； the removing process of inclusions has three sub-processes ： (1 ) inclusions approaching and entering into the boundary zone to produce disturbance, (2) entering into the bubble wake rising zone and (3) inclusions going on rising up or escaping from bubble wake rising zone to float off ； with increasing bubble diameter D_b and particle concentration C^p are available to remove inclusions in steel by bubble wake ； the smaller the particle diameter D^p, the easier the inclusions to be remove by bubble wake.

杨虎林, 何平, 翟玉春. 气泡尾流去除钢液中夹杂物机理的水模型研究[J]. 特殊钢, 2014, 35(1): 15-18.

Yang Hulin, He Ping, Zhai Yuchun. A Study of Water Modelling on Mechanism of Removal of Inclusions in Molten Steel by Bubble Wake[J]. Special Steel, 2014, 35(1): 15-18.

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