Optimization of high alumina slag practice in blast furnace ironmaking: an industrial approach (PART 1: fundamental aspects)

IF 1.7 3区材料科学 Q2 METALLURGY & METALLURGICAL ENGINEERING

Ironmaking & Steelmaking Pub Date : 2023-05-19 DOI:10.1080/03019233.2023.2210901

Sujan Hazra, S. Pal, Devi Dutta Biswajeet, Manisha Sahoo, Garwa Sunny Tarachand, Debanjana Bhattacharyya, S. Nag, S. Seetharaman

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引用次数: 1

Abstract

ABSTRACT The productivity of the blast furnace Ironmaking process is significantly dependent on the slag chemistry. The presence of compounds like Al2O3 in high quantities can make the hearth slag highly viscous and difficult to tap. The objective of part-1 of this study is to provide a comprehensive analysis of the role of high alumina (Al2O3 > 15%) compositions in the blast furnace slags. Slag viscosity, liquidus temperature, activation energy, etc., are critically reviewed with respective solutions to operate under the desired conditions. Flow parameters of the slag are examined to understand the melting-softening phenomena which directly affect the slag tap-to-tap time. The addition of certain additives to the slag system has also been studied with the aim to improve the target properties of the slag. A range of slag compositions and their optimization techniques are discussed in this part to provide greater insight into the topic.

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高炉冶炼中高铝炉渣实践的优化：一种工业方法（第1部分：基本方面）

高炉炼铁过程的生产率在很大程度上取决于炉渣的化学性质。大量的Al2O3等化合物的存在会使炉渣高度粘稠且难以挖掘。本研究第1部分的目的是对高氧化铝（Al2O3 > 15%）组成。对炉渣粘度、液相线温度、活化能等进行了严格审查，并提出了在所需条件下运行的相应解决方案。对炉渣的流动参数进行了检测，以了解直接影响出渣时间的熔融软化现象。还研究了在矿渣系统中添加某些添加剂，以提高矿渣的目标性能。本部分讨论了一系列矿渣成分及其优化技术，以深入了解该主题。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

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.