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介绍了莱钢120 t转炉副枪的应用情况,莱钢炼钢厂通过不断优化数学模型和完善修改各项规程制度使副枪运行得到了稳定,基本上取消了转炉倒炉作业,并对转炉炼钢工艺操作进行了优化。转炉各项指标得到了一定的提高,碳温双命中率达到了90%以上,冶炼周期平均缩短了4 min,转炉生产能力提高了10%,钢铁料消耗降低11 kg/t(钢)。同时降低了耐材消耗,提高了钢水质量、稳定了钢水成分,为开发优质品种钢创造了有利条件,实现了从经验炼钢到智能炼钢的转变。
The application situation of 120t converter sub lance in Laiwu Iron and Steel Co., Ltd. was introduced. Through continuous optimization of mathematical model and perfecting and revising of various rules and regulations, Lai Steel Works stabilized the sub-gun operation, basically canceled the operation of converter, Steelmaking operations have been optimized. The indicators of the converter have been improved to some extent. The double hit rate of carbon temperature has reached over 90%, the smelting cycle has been shortened by 4 minutes on average, the converter production capacity has been increased by 10% and the consumption of steel material has been reduced by 11 kg / t (steel). At the same time, the consumption of refractories is reduced, the quality of molten steel is improved, the composition of molten steel is stabilized, favorable conditions are established for developing high-quality varieties of steel, and the transition from experience-based steelmaking to intelligent steelmaking is realized.