Water Model Study on Removing Inclusions in a Ladle With Argon Injected Through
钢包内喷嘴与透气砖吹氩去夹杂水模型研究

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.