Enhancement of strength of blast furnace flue dust – iron oxide – fly ash composite briquette using ANOVA-based mathematical model

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

Ironmaking & Steelmaking Pub Date : 2023-05-01 DOI:10.1080/03019233.2023.2200596

R. Das, M. K. Mondal, S. Pramanik

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Abstract

ABSTRACT Utilisation of by-products of an integrated steel plant improves productivity with diverse mix of raw materials used for iron making. The strength of a briquette made with Blast furnace flue dust and iron oxide with fly ash as a binder depends upon the briquetting pressure, particle size of fly ash, fly ash quantity, and curing temperature. In this study, the effect of process variables on the strength was investigated with ANOVA. The correlation between the process parameters and the strength was examined experimentally and RSM-based optimisation was performed during the preparation of briquettes. The RSM provided optimisation with a confidence level of 95% using the CCD design. This paper demonstrates the correlation between applied pressure, particle size, fly ash quantity, and curing temperature. The developed mathematical model would help in predicting the variation in the compressive strength with the change in the level of different parameters. This model can be useful for setting the optimum value of the parameters for achieving the target compressive strength.

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基于方差分析的数学模型提高高炉烟尘-氧化铁-粉煤灰复合型煤强度

摘要综合钢铁厂的副产品利用可用于炼铁的多种原材料来提高生产力。用高炉烟尘和氧化铁以粉煤灰为粘结剂制成的型煤的强度取决于成型压力、粉煤灰粒度、粉煤灰量和固化温度。本研究采用方差分析法研究了工艺变量对强度的影响。通过实验检验了工艺参数与强度之间的相关性，并在制备压块过程中进行了基于RSM的优化。RSM使用CCD设计提供了95%置信水平的优化。本文论证了外加压力、颗粒大小、粉煤灰用量和固化温度之间的相关性。所开发的数学模型将有助于预测抗压强度随不同参数水平变化的变化。该模型可用于设置用于实现目标抗压强度的参数的最佳值。

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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.