| 摘要 |
<p>The methodis used in ferrous metallurgy for steelmaking in converter by upwards blowing and downwards blowing. It guarantees processing of large quantities of hard ironcontaining materials, thus improving the heat balance of the process. The method includes loading with hard ironcontaining materials, pouring cast iron and simultaneous bottom blowing and top blowing, during the refining period 20 to 80% of the total quantity oxygen is top blown into the converter gas area by free gas streams, sloping towards the melt surface. Slag-forming materials, particularly lime, are led into the converter together with the oxygen, fed under the melt's surface.</p> |
