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鞍钢两座150t转炉已经全部采取顶底复合吹炼工艺。生产实践表明,顶底复合吹炼工艺具有明显的冶金效果。由于吹炼平稳,喷溅少,使平均装入量增加6.16t/炉;金属收得率有所提高,钢铁料消耗降低8.4kg/t_钢:铁合金消耗降低0.35kg╱t_钢;副原料及氧气消耗均有所降低;纯吹氧时间和冶炼周期有所缩短;综合生产成本比顶吹工艺降低约2.30￥/t_钢。
Angang two 150t converter have all been top and bottom composite blowing process. Production practice shows that the top and bottom compound blowing process has obvious metallurgical effect. As the blowing smooth, splashed less, so that the average load increased by 6.16t / furnace; metal recovery rate increased, reducing the consumption of steel material 8.4kg / t_ steel: ferroalloy consumption reduced 0.35kg ╱ t_ steel; deputy Raw materials and oxygen consumption are reduced; pure oxygen blowing time and smelting cycle has been shortened; overall production costs lower than the top blowing process of about 2.30 ¥ / t_ steel.