市政技术2026，Vol.44Issue(8)：252-258,7.DOI:10.19922/j.1009-7767.2026.08.252
曝气催化铁刨花释铁能力探究
Study on the Iron Release Capacity of Aerated Catalytic Iron Shavings
张红 1刘仁林 1赵志刚1
作者信息
- 1. 安徽中节能国祯智能装备有限公司,安徽 合肥 230088
- 折叠
摘要
Abstract
This study investigated the iron release ability of aerated catalytic iron shavings and its influencing factors.The effects of residence time,bulk density of iron shavings,addition of copper shavings and ratio of iron to copper,types of steel and passivation in the process of reducing iron release on iron-releasing capacity were investigated.The comparison experiment was carried out,and the residence time were 30 min and 60 min,and the packing den-sity of iron shavings were 30 g/L and 60 g/L.When the optimal residence time was 60 min and the packing density of iron shavings was 30 g/L,the highest concentration of iron releasing was 9.7 mg/L.On this basis,the effects of cop-per shavings addition,iron-copper ratio and steel types on iron-releasing capacity were studied.The results showed that under aeration conditions,the iron-releasing ability of iron shavings system of Q235-B steel alone was higher than that of iron shavings and copper shavings catalyzed iron system.And the effect of steel type on iron-releasing capacity was more significant.In the process of iron release,the surface of iron shavings will be passivated,which will affect the ability of iron release.The ability of mechanical stirring and pickling to remove the adhesion on the surface of iron shavings was compared and investigated to show that the iron release ability of iron shavings can be maintained by mechanical stirring.关键词
铁刨花/催化铁/释铁能力/机械搅拌/酸洗Key words
iron shavings/catalytic iron/iron-releasing capacity/mechanical mixing/pickling分类
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张红,刘仁林,赵志刚..曝气催化铁刨花释铁能力探究[J].市政技术,2026,44(8):252-258,7.
