烧结机头、高炉布袋除尘灰回用技术探讨  

Discussions on Technologies for Recycling Fly Ash of Sintering Machine Head and Blast Furnace Bag

作　　者：田颖 孙磊 王雨 Tian Ying;Sun Lei;Wang Yu(Baotou Steel Group Energy Saving and Environmental Protection Technology Industry Co.,Ltd.,Baotou 014010,Inner Mongolia Autonomous Region,China)

机构地区：[1]包钢集团节能环保科技产业有限责任公司,内蒙古包头014010

出　　处：《包钢科技》2023年第1期36-40,共5页Science & Technology of Baotou Steel

摘　　要：通过对烧结机头除尘灰、高炉布袋除尘灰特性及处置现状分析,探讨影响该类除尘灰回用的制约因素,研究从除尘灰中提取Zn、K、Na等有价元素的关键技术。结合现有高碱金属含量除尘灰水洗提盐、高锌含量除尘灰火法、湿法提锌、含铁尘泥电弧炉还原技术案例,评估其优缺点,提出针对高碱金属含量烧结机头除尘灰、高锌金属、高碱金属含量高炉布袋除尘灰综合利用技术方案,方案实施后经处理的除尘灰可回用于烧结,生产的Zn、K、Na产品可对外销售,在产生可观的经济效益的同时解决了土地占用、环境污染问题。In the paper,the restraining factors affecting recycling fly ash of sintering machine head and blast furnace bag are discussed as well as the key technologies of extracting such valuable elements as Zn,K and Na from the fly ash are studied by analyzing its characteristics and disposal status.The technical plans for comprehensive utilization of fly ash of sintering machine head with high alkali metal content as well as fly ash of blast furnace bag with high zinc and alkali metal contents are proposed combining with such cases as salt extraction technology by washing for fly ash with high alkali metal content,zinc extraction technology with pyrogenic and wet processes for fly ash with high zinc content and reduction technology of electric arc furnace for iron-bearing dust as well as evaluating their merits and demerits.After implement the plans,the disposed fly ash could be recycled for sintering as well as products of Zn,K and Na could be sold externally so that the economic benefits are considerable and the problems of land occupation and environmental pollutions could be solved.

关 键 词：水洗提盐技术 火法提锌技术 综合利用 

分 类 号：X757[环境科学与工程—环境工程]