抑制AOD不锈钢渣粉化的试验研究  

Studies on inhibiting disintegration of AOD stainless steel slag

作　　者：仪桂兰[1] 史永林[1] 

机构地区：[1]山西太钢不锈钢股份有限公司技术中心,山西太原030003

出　　处：《炼钢》2012年第4期66-68,77,共4页Steelmaking

摘　　要：针对AOD不锈钢渣冷却过程中产生严重粉化扬尘问题,通过研究不锈钢渣冷却过程中的粉化机理,采用配加硼质改性剂抑制粉化扬尘技术,即在出渣过程中加入0.6%～1.0%质量分数的硼质改性剂,降低不锈钢钢渣的黏度和熔化温度,促使渣中游离氧化钙(f-CaO)熔解,与SiO2形成不易粉化的β-硅酸二钙(β-C2S),防止了渣中α′-C2S向γ-C2S的转变,有效抑制了AOD不锈钢渣冷却过程中的粉化扬尘,改善了周边环境。In light of the serious disintegration and dust flying of the AOD stainless steel slag in the process of cooling by studying the mechanism of disintegration of the slag in cooling and adopting the technique of inhibiting slag disintegration and dust flying with addition of borate into the slag as modifier, namely adding 0.6 % -1.0% quality frac- tion of borate modifier in the process of tapping the slag to reduce the viscosity and melting temperature of the stainless steel slag and promote the fusion of f-CaO in slag so as to react with SiO2 and form the β-C2S. By this way transformation of α-C2S in the slag intoγ-C2S can be prevented and the slag disintegration and dust flying can be effec- tively inhibited in the process of cooling the AOD stainless steel slag and then the pollu- tion problem can be solved and the environment conditions greatly improved as well.

关 键 词：不锈钢渣 粉化 改性剂 

分 类 号：X75[环境科学与工程—环境工程]