Effect of municipal sludge addition on the sinter process and sinter quality

IF 1.7 3区 材料科学 Q2 METALLURGY & METALLURGICAL ENGINEERING Ironmaking & Steelmaking Pub Date : 2023-03-31 DOI:10.1080/03019233.2023.2192591
Xiao Ping, Feng Wang, Jianlei Pan, Haifeng Wang, Zhi-wei An
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Abstract

ABSTRACT In order to analyse the feasibility of sintering for municipal sludge treatment, a sintering pot was used for the experiment. The results showed that the main effects of sludge addition on the sintering process and sinter quality come from the changes in the heat addition and moisture content of the granulated sinter. The addition of sludge could improve the granulation efficiency of the sinter mixture and the particle size composition of the sinter. When the proportion of sludge was 7%, the addition of sludge completely replaced the water required for mixing, and the overall sintering index was the best. In this case, after reducing fuel consumption by 10%, except for the content of P, the sinter quality and the sintering index could met the requirements of steel production. Finally, the use of fuel and raw materials with high P content needed to be reduced with the addition of sludge.
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城市污泥添加对烧结工艺及烧结矿质量的影响
摘要为了分析烧结处理城市污泥的可行性,采用烧结罐进行了实验研究。结果表明,污泥添加量对烧结过程和烧结质量的主要影响来自于颗粒状烧结矿的热添加量和含水率的变化。污泥的加入可以提高烧结混合料的造粒效率和烧结矿的粒度组成。当污泥掺量为7%时,污泥的加入完全取代了搅拌所需的水,整体烧结指标最好。在此情况下,降低10%的燃料消耗后,除P含量外,烧结质量和烧结指标均能满足钢铁生产的要求。最后,随着污泥的加入,需要减少高磷含量的燃料和原料的使用量。
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来源期刊
Ironmaking & Steelmaking
Ironmaking & Steelmaking 工程技术-冶金工程
CiteScore
3.70
自引率
9.50%
发文量
125
审稿时长
2.9 months
期刊介绍: Ironmaking & Steelmaking: Processes, Products and Applications monitors international technological advances in the industry with a strong element of engineering and product related material. First class refereed papers from the international iron and steel community cover all stages of the process, from ironmaking and its attendant technologies, through casting and steelmaking, to rolling, forming and delivery of the product, including monitoring, quality assurance and environmental issues. The journal also carries research profiles, features on technological and industry developments and expert reviews on major conferences.
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