120t转炉少渣冶炼脱碳保磷的冶金效果  

Metallurgical effects of 120 t converter with less slag refining for decarburization and keep phosphorus

作　　者：吴明[1] 李应江[1] 王军[1] 

机构地区：[1]马鞍山钢铁股份有限公司第一钢轧总厂,安徽马鞍山243000

出　　处：《炼钢》2014年第1期10-12,共3页Steelmaking

摘　　要：针对硅钢低碳低硫高磷的特点,马鞍山钢铁股份有限公司120 t转炉采用深脱硫铁水少渣冶炼脱碳保磷工艺,实现转炉终点w(S)≤0.006%,w(P)≥0.050%,终点C-T命中率提高直接出钢,钢水氧活度稳定在593×10-6左右,吹损喷溅下降,钢水收得率提高1.5%,石灰等散状料控制在33.7 kg/t以下,取得显著的经济效果。According to the characteristics of low-carbon low-sulphur high-phosphorus silicon steel, the process of deep desulfurization molten iron less slag smelting and decarbonization phosphorus conservation was used on 120 t converter in Ma＇ anshan Iron Steel Company Ltd. The converter end point reached w（S）≤0. 006 %, w（P）≥ 0. 050 %, and the hit ratio of C-T was improved. The end molten steel oxygen activity was stability about 593×10^-6. Blowing loss and splash were down, and molten steel yield was increased by 1.5 %. The mass of lime and other bulk material was controlled below 33. 7 kg/t, and the remarkable economic benefits were achieved.

关 键 词：铁水深脱硫 少渣冶炼 脱碳保磷 效果分析 

分 类 号：TF723[冶金工程—钢铁冶金]