Recent Advances in Iron Ore Sintering

A special issue of Minerals (ISSN 2075-163X). This special issue belongs to the section "Mineral Processing and Extractive Metallurgy".

Deadline for manuscript submissions: closed (31 December 2023) | Viewed by 2531

Special Issue Editors


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Guest Editor
School of Minerals Processing & Bioengineering, Central South University, No. 932, South Lushan Road, Changsha 410083, China
Interests: agglomeration of iron ore and hydrogen metallurgy; mathematical modeling and intelligent control of metallurgical process; multi-pollutants control of metallurgical flue gas; resource utilization of multi-industry solid waste
Special Issues, Collections and Topics in MDPI journals
School of Minerals Processing & Bioengineering, Central South University, Changsha 410083, China
Interests: agglomeration of iron ore and hydrogen metallurgy, multi-pollutants control of metallurgical flue gas, resource utilization of multi-industry solid waste

E-Mail Website
Guest Editor
School of Minerals Processing & Bioengineering, Central South University, Changsha 410083, China
Interests: solid valorization; metallurgical pollutants control; sustainable construction materials
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Sintering is the thermal agglomeration process through which mixtures of iron ore fines, recycled ironmaking products, fluxes, slag-forming agents, and fuels are partially fused to produce clustered lumps to be fed into the blast furnace. Moving the flame down the front of the particulate bed is accompanied by series of physicochemical reactions such as coke combustion, iron oxide reduction, and re-oxidation, carbonate decomposition, melting and solidification, etc. In the few past decades, extensive studies, both scientific investigations and numerical modelling, have been conducted to determine the best parameters for generating a high-quality sinter, but the common laws and basic theories are still far from distinct. Today, the iron ore sintering industry faces aims to achieve transformation in the form of digitalization, intelligence, technological revolution, and low-carbon green growth. It is therefore of great significance to profoundly figure out the essence of iron ore sintering.

This Special Issue focuses on the key developments in iron ore sintering, paying particular attention to the chemical reaction processes, the transport of heat and mass, kinetics, and thermodynamics as well as intensification methods. Contributions discussing resource recycling, energy saving, emission reductions, and intelligent control are welcome.

Prof. Dr. Xiaohui Fan
Dr. Min Gan
Dr. Zengqing Sun
Guest Editors

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Keywords

  • iron ore sintering
  • physicochemical principles
  • low carbon
  • emission reduction
  • intelligent control

Published Papers (2 papers)

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Research

14 pages, 3546 KiB  
Article
Fuel-Appropriate Distribution of the Material Layer Based on Numerical Model of Sintering with Particle Swarm Optimization Algorithm
by Fanglei Dai, Xiaohui Fan, Xiaoxian Huang, Xuling Chen, Min Gan, Zhiyun Ji and Zengqing Sun
Minerals 2023, 13(4), 511; https://doi.org/10.3390/min13040511 - 02 Apr 2023
Viewed by 887
Abstract
An optimization model for the fuel distribution of the material layer with mechanism models and algorithms is presented, which can reduce the fuel ratio of ore blending and enhance the fuel content in the upper layer to improve the homogeneity of the sinter [...] Read more.
An optimization model for the fuel distribution of the material layer with mechanism models and algorithms is presented, which can reduce the fuel ratio of ore blending and enhance the fuel content in the upper layer to improve the homogeneity of the sinter quality. The actual fuel distribution of the material layer is analyzed through the granulation model and the theoretical fuel distribution for each unit is obtained using the numerical model. Then, the fuel particle size composition and segregation characteristics are optimized via the particle swarm optimization algorithm to bring fuel distribution close to the theoretical value, with a sum of their absolute values of 0.025. In comparison with the initial conditions, the fuel particle size composition conforms to a normal distribution with increased coarse particles, and the deviation of the granules from the vertical direction of the sinter layer decreases. Through this optimization method, the sinter bed with the ideal thermal profile can be achieved, namely uniform sintering along with a reduced coke ratio. Full article
(This article belongs to the Special Issue Recent Advances in Iron Ore Sintering)
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12 pages, 1696 KiB  
Article
Sintering Properties and Regression Analysis of Imported Iron Ore Powder
by Shuai Hao, Guoping Luo, Yifan Chai, Yuanyuan Lu, Shengli An and Wei Song
Minerals 2022, 12(12), 1496; https://doi.org/10.3390/min12121496 - 24 Nov 2022
Viewed by 1069
Abstract
In order to reduce the sintering allocation scheme and lower the cost of allocation, two semi-lignite ores with similar properties and large price differences were selected for blending to achieve the purpose of complementary advantages. The sintered ore specimens were studied by using [...] Read more.
In order to reduce the sintering allocation scheme and lower the cost of allocation, two semi-lignite ores with similar properties and large price differences were selected for blending to achieve the purpose of complementary advantages. The sintered ore specimens were studied by using FactSage7.1, an infrared sintering furnace, and regression analysis. The results show that OA and OB iron ore powders and their mixed iron ore powders have a good linear fitting effect with an inverse relationship between bond phase strength and SiO2 content; the bond phase strength has a positive relationship with liquid phase fluidity index; when mixing OA and OB iron ore powders in the ratio of 4:6, they have better sintering base characteristics and can be used as a new iron ore powder. Full article
(This article belongs to the Special Issue Recent Advances in Iron Ore Sintering)
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