Interparticle forces and their regulation mechanisms in iron ore granulation: A review

IF 4.7 2区材料科学 Q2 ENGINEERING, CHEMICAL

Particuology Pub Date : 2026-01-01 Epub Date: 2025-11-28 DOI:10.1016/j.partic.2025.11.014

Dongcai Luo, Renhao Tian, Shaoxian Xie, Yuxiao Xue, Yang You, Xuewei Lv

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Abstract

Iron ore granulation is a critical role in the production of sinter, with the resulting granule size distribution and strength directly influencing the permeability of the subsequent sinter bed and the quality of the sinter. Granulation involves the process of particle coalescence and growth under the influence of forces such as collision, compression, and friction, resulting in larger granules with a narrower size distribution. The inter-particle forces are governed by the properties of the iron ore, granulation equipment, and process parameters. Therefore, the appropriate granulation process and optimized configuration of iron ore plays a significant role in improving the technical and economic indicators of sintering. This paper reviews the mechanisms of particle growth during the granulation process, focusing on the microscopic interparticle forces that drive particle coalescence. A central theme of this review is to establish the critical link between these microscopic forces and the macroscopic process parameters. Therefore, it subsequently analyzes how raw material properties, equipment design, and operating conditions exert their influence precisely by regulating these interparticle forces. Finally, the paper summarizes the current challenges and future research directions in iron ore granulation. The results provide a theoretical basis for comprehensive understanding of iron ore granulation and efficient production of high-quality granules.

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铁矿石造粒过程中颗粒间力及其调控机制综述

铁矿石造粒在烧结矿生产中起着至关重要的作用，其造粒的粒度分布和强度直接影响到后续烧结床的渗透性和烧结矿的质量。造粒是指颗粒在碰撞、压缩、摩擦等作用力的作用下，聚并生长，形成颗粒较大、粒径分布较窄的过程。颗粒间力受铁矿石性质、造粒设备和工艺参数的影响。因此，合理的制粒工艺和优化的铁矿石配置对提高烧结的技术经济指标具有重要作用。本文综述了颗粒在造粒过程中的生长机制，重点介绍了驱动颗粒聚并的微观颗粒间力。本综述的中心主题是建立这些微观力和宏观工艺参数之间的关键联系。因此，随后分析了原料性质、设备设计和操作条件如何通过调节这些粒子间力来精确地发挥其影响。最后，总结了当前铁矿石造粒面临的挑战和未来的研究方向。研究结果为全面认识铁矿石制粒和高效生产优质颗粒提供了理论依据。

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来源期刊

Particuology 工程技术-材料科学：综合

CiteScore

6.70

自引率

2.90%

发文量

1730

审稿时长

32 days

期刊介绍： The word ‘particuology’ was coined to parallel the discipline for the science and technology of particles. Particuology is an interdisciplinary journal that publishes frontier research articles and critical reviews on the discovery, formulation and engineering of particulate materials, processes and systems. It especially welcomes contributions utilising advanced theoretical, modelling and measurement methods to enable the discovery and creation of new particulate materials, and the manufacturing of functional particulate-based products, such as sensors. Papers are handled by Thematic Editors who oversee contributions from specific subject fields. These fields are classified into: Particle Synthesis and Modification; Particle Characterization and Measurement; Granular Systems and Bulk Solids Technology; Fluidization and Particle-Fluid Systems; Aerosols; and Applications of Particle Technology. Key topics concerning the creation and processing of particulates include: -Modelling and simulation of particle formation, collective behaviour of particles and systems for particle production over a broad spectrum of length scales -Mining of experimental data for particle synthesis and surface properties to facilitate the creation of new materials and processes -Particle design and preparation including controlled response and sensing functionalities in formation, delivery systems and biological systems, etc. -Experimental and computational methods for visualization and analysis of particulate system. These topics are broadly relevant to the production of materials, pharmaceuticals and food, and to the conversion of energy resources to fuels and protection of the environment.