摘要
通过选择乳状液滴模拟夹杂物和偏心底吹钢包水模型实验,考察了喷嘴和透气砖吹气条件下时间、吹气量对夹杂物去除行为的影响规律．结果表明:较小气量和较大气量分别在8和16 min内可将绝大部分的模拟夹杂物去除, 28 min内可将模拟夹杂物几乎全部去除;喷嘴吹气时存在一个最佳去夹杂气量,而透气砖吹气时较小气量的去夹杂效果要好于较大气量,且在一定的气量范围内通过透气砖吹气的去夹杂效果要明显好于通过喷嘴吹气．
The effects of time and gas flowrate on inclusion removal in a ladle with eccentric bottom gas injected through nozzle and porous plug were investigated by choosing emulsion drops simulated as inclusions in a water model. The results show that most of the inclusions can be removed in eight minutes with smaller flowrates, while sixteen minutes needed with larger flowrates. All the inclusions which have the possibility to be removed almost disappeared from the system in twentyeight minutes. With gas blowing through nozzle, there was a gas flowrate to be the best for inclusions removal. With gas injected through porous plug, smaller gas flowrates seemed to be more efficient for inclusions removal. And within a range of gas flowrates, gas injected through porous plug seemed to be more efficient for inclusions removal than gas blowing through nozzle.
出处
《金属学报》
SCIE
EI
CAS
CSCD
北大核心
2006年第11期1143-1148,共6页
Acta Metallurgica Sinica
基金
国家自然科学基金委员会
上海宝钢集团公司钢铁联合资助基金项目50274022
教育部新世纪优秀人才支持计划资助项目NCET-04-0285~~
关键词
钢包
偏心底吹
乳状液滴
夹杂物
水模
ladle, eccentric bottom-blowing, emulsion drop, inclusion, water modeling
