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碱性氧气顶吹转炉(LD-AC法)采用高磷生铁冶炼低磷钢,是早经解决了的问题。但是,生产实践证明,为了经济而又高效地生产,要求转炉冶炼具有规律性成份的钢法,(C 0.060%,P≤0.020%)。虽然采取特殊方也可以获得P≤0.01%的钢,但是金属损耗增加,操作周期延长,而且很难防止出钢后的回磷。因此,卢森堡的ARBED发展了一种钢包脱磷的处理方法。转炉吹炼毕,钢液注入钢包,同时向包中加入石灰粉、铁矿或铁鳞和萤石,其配比按照所要求的脱磷率而定。并通过多孔砖向
Alkaline oxygen top-blown converter (LD-AC method) using low-phosphorus high-phosphorus pig iron smelting steel, is a long time ago to solve the problem. However, production practice has proved that, in order to produce economically and efficiently, a converter of steel with a regular composition is required (C 0.060%, P ≦ 0.020%). Although P≤0.01% steel can be obtained with a special side, the metal loss increases, the operation cycle is prolonged, and it is difficult to prevent the post-tapping phosphorus recovery. As a result, Luxembourg’s ARBED developed a ladle dephosphorization treatment. Converter blowing finish, molten steel into the ladle, while adding lime powder, iron ore or iron scales and fluorite, the ratio in accordance with the required dephosphorization rate. And through the perforated brick to