摘要
针对钢液中气泡粘附去除夹杂物的问题,采用水模拟试验对气泡粘附去除夹杂物的机理进行研究。通过高速摄像机和图像处理软件监测气泡粘附去除夹杂物的过程,考察气泡直径、夹杂物直径和接触角等因素对气泡粘附去除夹杂物的影响规律。结果表明:气泡粘附夹杂物上浮是去除钢液中夹杂物的一种有效方式。该方式分为气泡向夹杂物靠近;气泡与夹杂物发生碰撞并粘附;夹杂物在气泡底部处于不断振荡摆动的动态稳定状态等3个过程。气泡尺寸越小,夹杂物尺寸和接触角越大,粘附速度越大。底吹流量恒定时,减小气泡尺寸可有效提高气泡粘附去除夹杂物效率。
Abstract：In order to make clear how non-metallic inclusions were removed from molten steel through bubble adhesion, water modeling was carried out to monitor the process with high-speed video and image processing software. The mechanism of inclusion removal by bubble adhering was analyzed, and the in- fluencing factors including bubble diameter, inclusion diameter, and inclusion contact angle were also in- vestigated. The results show that it is an effective way to remove inclusions with bubble adhering. The adhering process can be divided into 3 sub-processes： first, the bubbles get close to the inclusion parti- cles ; second, the bubbles collide with the particles and attach to them; finally, the particles float up with the bubbles in dynamic stability. When the bottom blowing flow rate is constant, it is effective to decrease the bubble size to improve the efficiency of remove inclusions by adhering to bubbles.
出处
《钢铁钒钛》
CAS
北大核心
2013年第6期45-49,共5页
Iron Steel Vanadium Titanium
基金
国家科技支撑计划课题(2012BAE03B01)
关键词
钢液
气泡尾流
夹杂物去除
机理
水模拟
molten steel, bubble wake flow, inclusion removal, mechanism, water model
作者简介
杨虎林（1986-），男，甘肃平凉人，在读博士生，主要从事精炼理论和工艺技术研究。
