高炉处理冷轧含铬污泥的试验研究  

Pilot Study of Blast Furnace Treatment of Cold Rolling Chromium-Containing Sludge

作　　者：施万玲[1] 潘铁毅[1] 李君[1] 王龙锋[1] 夏朝晖[1] SHI Wanling;PAN Tieyi;LI Jun;WANG Longfeng;XIA Zhaohui(WISDRI Engineering&Research Incorporation Ltd.,Wuhan,Hubei 430223,China)

机构地区：[1]中冶南方工程技术有限公司钢铁分公司,湖北武汉430223

出　　处：《冶金动力》2024年第5期107-110,共4页Metallurgical Power

摘　　要：钢铁生产的冷轧工序在酸洗、碱洗、电镀等过程中会产生大量的含铬废水,含铬废水经浓缩处理后,其沉淀物为含铬污泥。含铬污泥是一种危险废弃物,需进行无害化处理,但无害化处理费用较高,且含铬污泥在储运、无害化处理过程中又极易产生二次污染,为此,提出一种将含铬污泥作为原料返回高炉就近消纳的含铬污泥处理工艺,并通过试验证明污泥中的铬元素可以被还原进入铁水,且不会对产品品质产生影响,从而实现含铬污泥在钢铁厂自行消化的目的。The cold rolling process of iron and steel production generates a large amount of chromium-containing wastewater in the process of pickling,alkaline washing,elec⁃troplating,etc.After the chromium-containing wastewater is concentrated and treated,the precipitate is chromium-containing sludge.Chromium-containing sludge is a kind of hazard⁃ous waste,which needs harmless treatment,but the cost of harmless treatment is high,and chromium-containing sludge is very easy to produce secondary pollution during storage,trans⁃portation and harmless treatment.For this reason,it is proposed that chromium-containing sludge be returned to the blast furnace as raw material for nearby digestion of chromiumcontaining sludge.It is also proved through tests that the chromium in the sludge can be re⁃duced into the molten iron without affecting the quality of the product,thus realizing the purpose of self-digestion of chromium-containing sludge in the iron and steel plant.

关 键 词：含铬污泥 六价铬 高炉消纳 资源化利用 

分 类 号：X705[环境科学与工程—环境工程]