Optimization of the oxygen supply system for smelting 82B steel with high-Ti-high-V molten iron in converter in Shougang Iron & Steel Co.
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摘要: 首鋼為降低82B生產成本,提高產品質量,在高爐原料中加入了釩鈦球團礦.釩鈦球團礦的加入導致轉爐生產化渣慢,脫磷效率低,濺渣護爐效果不佳等問題.為了解決高釩鈦鐵水轉爐生產82B所遇到的問題,本文以首鋼煉鋼廠轉爐生產82B工藝為研究對象,利用Fluent數值模擬結合工業試驗共同優化了轉爐高VTi鐵水冶煉82B供氧制度.通過供氧制度的優化,提高了轉爐處理高VTi鐵水的能力,從而保障首鋼生產出高品質低成本的82B.Abstract: Aiming at reducing the production cost of 82B steel and improving product quality,Shougang Iron & Steel Co. added vanadium titanium pellets as raw material in the blast furnace. The addition of vanadium titanium pellets led to several problems such as the low speed in the process of producing and slag melting in converter,the low efficiency of dephosphorization,and the non-ideal effects of slag splashing. In order to solve the above problems,taking the production process of 82B steel in converter in Shougang Iron& Steel Co. as the research object and using the Fluent software to conduct a numerical simulation in combined with high industrial test,this study optimizes the oxygen supply system when using high-V-high-Ti molten iron to smelt 82B steel in converter. In addition,the optimization of oxygen supply system serves as a guarantee for the enhanced ability in smelting 82B steel with high-V-high-Ti molten iron in convert. As a result,there exists increasing possibility for Shougang Iron & Steel Co. to produce high-quality and low-cost 82B steel.
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Key words:
- vanadium titanium pellet /
- converter oxygen lance /
- oxygen supply system
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