The method of reducing energy consumption in large blast furnace smelting by increasing top pressure

IF 0.9 4区材料科学 Q3 METALLURGY & METALLURGICAL ENGINEERING

Metallurgical Research & Technology Pub Date : 2023-01-01 DOI:10.1051/metal/2023071

Jian Chu, Yun Xu, Qinglin Chen, Nan Zhang, Bing Dai

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Abstract

Based on the fundamental processes and principles of ironmaking in a BF, an analysis was conducted on the production technical data from 18 large-scale 3200 m 3 BFs in China in 2020. The study systematically investigated the influence of top pressure on reduction, air injection, furnace top, energy consumption, and pig iron composition within the BF. Practical operations in a newly No. 1 3200 m 3 BF in a Chinese company demonstrated that increasing the top pressure not only effectively improved the smelting process, operational stability, and reduced furnace fluctuations but also led to a decrease in dust emissions, increased pig iron yield and quality, and significantly reduced fuel consumption and process energy consumption. Against the backdrop of dual carbon objectives, gaining a scientific understanding of the dynamic operation principles of the BF smelting process and continuously exploring low-carbon ironmaking methods have become the focus for professionals and researchers in the fields of BF ironmaking, production management, technology, and scientific research.

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介绍了提高炉顶压力降低大型高炉冶炼能耗的方法

根据高炉炼铁的基本流程和原理，对2020年全国18座大型3200m3高炉的生产技术数据进行了分析。系统研究了炉顶压力对高炉还原、喷风、炉顶、能耗、生铁成分的影响。中国某公司新建1 3200 m3高炉的实际运行表明，提高炉顶压力不仅有效改善了冶炼工艺，提高了运行稳定性，减少了炉膛波动，而且减少了粉尘排放，提高了生铁产量和质量，显著降低了燃料消耗和工艺能耗。在双碳目标背景下，科学认识高炉冶炼过程的动态运行原理，不断探索低碳炼铁方法，已成为高炉炼铁、生产管理、技术和科研等领域的专业人士和研究人员关注的焦点。

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

Metallurgical Research & Technology METALLURGY & METALLURGICAL ENGINEERING-

CiteScore

1.70

自引率

9.10%

发文量

审稿时长

4.4 months

期刊介绍： Metallurgical Research and Technology (MRT) is a peer-reviewed bi-monthly journal publishing original high-quality research papers in areas ranging from process metallurgy to metal product properties and applications of ferrous and non-ferrous metals and alloys, including light-metals. It covers also the materials involved in the metal processing as ores, refractories and slags. The journal is listed in the citation index Web of Science and has an Impact Factor. It is highly concerned by the technological innovation as a support of the metallurgical industry at a time when it has to tackle severe challenges like energy, raw materials, sustainability, environment... Strengthening and enhancing the dialogue between science and industry is at the heart of the scope of MRT. This is why it welcomes manuscripts focusing on industrial practice, as well as basic metallurgical knowledge or review articles.