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通过控制转炉工艺原辅材料质量,改进和优化加料、供氧等吹炼模型,实现了高的转炉吹炼终点[C]、T命中率;摸索出全程跟踪化渣技术,保证了吹炼过程的稳定性;提高挡渣效果,使大罐内渣层厚度由原来的100 mm以上降到50 mm左右。通过工艺优化提高了马钢CSP工序的脱磷效果,转炉的脱磷率提高到93%以上,终点磷的质量分数平均为0.008 8%,过程总回磷小于0.005%,成品平均磷的质量分数为0.010%,提高了产品的质量。
By controlling the quality of raw and auxiliary materials in the converter process, improving and optimizing the blowing model such as feeding and oxygen supply, the high conversion rate of the converter blowing point [C] and T was achieved; the whole process of tracking slag was explored to ensure the blowing process Of the stability; improve the slag effect, so that the large tank slag layer thickness from the original 100 mm down to about 50 mm. Through technological optimization, the dephosphorization effect of MSP CSP process was improved. The dephosphorization rate of the converter increased to more than 93%, the average phosphorus content of end point was 0.008 8% and the total phosphorus recovery was less than 0.005%. The average phosphorus content 0.010%, improve product quality.