利用除尘灰生产海绵铁的试验研究

• 作 者: 史永林
• 机 构: 山西太钢不锈钢股份有限公司技术中心,
• 出 处: 钢铁研究
• 发表日期: 2010年04期
• 关键词: 海绵铁 试验研究 工艺处理 金属化率 瓦斯灰 二次资源 循环经济 尘泥 脱除率 焦粉

为了更好地实现循环经济,降本增效,合理利用太钢除尘灰资源,降低除尘灰中Zn、K、Na等元素对高炉的不利影响,采用隧道窑工艺,以转炉除灰尘、AOD除灰尘、铁鳞、高炉瓦斯灰等配料进行了试验研究。结果表明,采用该工艺处理除尘灰生产海绵铁是可行的,Fe金属化率达到80%以上,脱Zn及碱金属效果显著。

In order to achieve a better recycling economy, reduce costs and increase efficiency, rational use of Taigang dust resources, reduce ash, Zn, K, Na and other elements of the adverse impact on the blast furnace, the use of tunnel kiln technology, converter dust, AOD Dust, iron scale, blast furnace gas ash and other ingredients were tested. The results show that it is feasible to produce sponge iron by using this process to remove dust, the metallization rate of Fe is more than 80%, and the effect of removing Zn and alkali metals is remarkable.