| 摘要 |
<p>Metal-slag stirring in an electric arc furnace containing molten steel is produced by gas injection through the vessel bottom. Injection may be made through gas permeable ceramic elements which are not penetrated by the metal, even when the gas flow rate is cut off. The gas injection can also be done with tuyere type injection elements to avoid gas flow rate suspension during the complete process. A furnace charging door stopper is used during stirring. Gas stirring of the molten bath produces a higher metal-slag and slag-atmosphere interphase area. The stirring gas may be natural gas. so that the process conditions, oxidizing or reducing, are reinforced according to the slag type in the bath. <IMAGE></p> |
