Treatment Technology of EAF Dust at Stainless Steel Works

Abstract

Abstract: The EAF dust at stainless steel works mainly consists of ejected liquid drops of metal and slag formed by breaking of CO bubbles produced by alloy elements evaporation and decarburization reaction and small particles of charging exhausted with waste gas. Comparison with EAF dust at carbon and low alloy steel works,the EAF dust at stainless steel works contains more alloy elements but zinc content is lower.At present the primary technology for reclaimed and treated dust at stainless steel works is smelting reduction process.

Key words: Stainless Steel, EAF, Dust, Treatment , Technology

摘要： 不锈钢厂电弧炉烟尘主要由炉内高温区合金元素和组分的挥发、脱碳反应生成的CO气泡破裂所形成的金属和炉渣液滴的飞溅、被尾气直接带走的小颗粒炉料组成。与普碳钢或低合金钢厂电弧炉烟尘比较,不锈钢电弧炉烟尘含有更多的合金元素,但锌含量较低。目前不锈钢厂所采用的回收处理烟尘的工艺以熔融还原工艺为主。

关键词: 不锈钢 , 电弧炉, 烟尘, 处理技术

Ma Guojun, Ni Hongwei , Xue Zhengliang. Treatment Technology of EAF Dust at Stainless Steel Works[J]. Special Steel, 2006, 27(6): 37-40.

马国军, 倪红卫, 薛正良. 不锈钢厂电弧炉烟尘处理技术[J]. 特殊钢, 2006, 27(6): 37-40.

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