电弧炉脱[S][P]和[Pb][Zn]的操作实践  

Operation Practice of De-[P][S] and [Pb][Zn] in Arc Furnace

作　　者：王新成 俞海明 

机构地区：[1]新疆钢铁集团公司,乌鲁木齐830022

出　　处：《特殊钢》2005年第4期44-45,共2页Special Steel

摘　　要：控制电弧炉[P][S]含量和[Pb][Zn]总量,为生产洁净钢创造了基本条件,防止炉渣回磷和无渣出钢操作是获得低[P][S]电弧炉钢水的关键操作。应控制炉料中[Pb][Zn]含量,当熔清时,[Pb]等成分超出标准要求的情况下,首先停止喷碳操作,增大吹氧强度和角度,将[C]降至0.10%以下,钢水经搅拌和升温,促使沉降在炉底[Pb]通过钢水的溶解、氧化被炉渣捕集,2～6min后,喷入发泡剂碳粉,使Pb氧化物还原成Pb蒸发排出,脱[Pb]率为19.0%～46.4%。脱[Zn]操作与脱[Pb]相同。It is basic condition for production of cleanliness to control Arc furnace [P][S], total amount of [Pb] and [Zn]. To prevent rephosphorization and slag free tapping are key operations to get low [P][S] molten steel of arc furnace. As melting down the [Pb] exceeds standard limit, first stop carbon injection operation and increase blown oxygen amount and angle to decrease [C] less than 0.10%, with molten steel stirring and heating for 2～6 min to promote [Pb] which deposits at bottom, solubilized in steel, oxidized and trapped by slag, then inject foaming agent carbon powder to reduce Pb oxide to Pb which evaporates and exhausts. The de-[Pb] ratio was 19.0%～46.4%. The de- [Zn] operation is similar to that of de-[Pb].

关 键 词：电弧炉 操作实践 基本条件 无渣出钢 标准要求 洁净钢 键操作 钢水 发泡剂 氧化物 含量 控制 炉渣 PB 回磷 炉料 吹氧 炉底 

分 类 号：TF741[冶金工程—钢铁冶金]