模拟富氢高炉气氛下混合炉料的软化和熔化性能

IF 1.7 3区 材料科学 Q2 METALLURGY & METALLURGICAL ENGINEERING
Zhuming Chen, Shuixin Ye, S. Geng, Kai-kai Zhu, Yuwen Zhang, X. Zou, Xionggang Lu
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引用次数: 0

摘要

研究了铁焦在富氢高炉气氛中的应用对炉料软化熔融性能的影响。结果表明,随着氢气含量的增加,混合料的粘结区变窄,装药渗透性提高,适宜的氢气含量为10vol.-%。铁焦的应用可以促进铁矿石还原和铁的渗碳,使熔化温度降低1–10°C,使滴落温度降低5–16°C,缩小粘结区,提高透气性,S值降低3.19–13.87 千帕 °C,降低焦炭的溶解损失,保证焦炭的骨架功能。确定了合适的炉料结构,即球团与烧结矿的比例为4:6,铁焦与焦炭的比例为2:8。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Softening and melting performance of mixed burden under the simulated hydrogen-rich blast furnace atmosphere
ABSTRACT The effects of the application of iron coke in hydrogen-rich blast furnace atmosphere on the softening and melting performance of burden were studied.The results indicated that with the increase in hydrogen content, the cohesive zone of mixed burden became narrower and the permeability of charge was improved, and the suitable hydrogen content was 10vol.-%. The application of iron coke could promote the iron ore reduction and carburizing of iron, decrease the melting temperature by 1–10°C, decrease the dripping temperature by 5–16°C, narrow the cohesive zone, improve the air permeability with S value decrease of 3.19–13.87 kPa °C, and reduce the dissolution loss of coke and ensure the skeleton function of coke. The suitable burden structure was confirmed as follows, i.e. the ratio of pellets and sinter is 4:6, and the ratio of iron coke and coke is 2:8.
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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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