Effect of Iron Ore Concentrate on Sintering Properties

Hsieh, Li-Heng

doi:10.2355/isijinternational.isijint-2017-276

Cited by 10 publications

(2 citation statements)

References 6 publications

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“…Owing to the poor granulation behaviour of iron concentrates, its usages in the traditional sintering process are greatly limited. Meanwhile, in order to improve the quality of the agglomeration products, some methods such as increasing the proportion of limes in sintering mixture and pre-treating iron concentrates through mechanical activation should be proposed to improve the iron concentrates granulation [4][5][6][7]. However, the presence of unreacted limes has a negative effect on metallurgical properties (especially disintegration during reduction) as well as on strength.…”

Section: Introductionmentioning

confidence: 99%

Effective preparation of blast furnace burdens from superfine iron concentrates by composite agglomeration process

Zhang

et al. 2019

Ironmaking & Steelmaking

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In this study, the composite agglomeration process (CAP) was verified to be an effective route for preparing blast furnace burdens from superfine iron concentrates. It was found that under the conditions of moisture content of matrix feed 8.2 wt-%, coke breeze dosage of 4.0 wt-%, pelletized feed proportion of 40 wt-% and composite basicity (CaO/SiO 2 ) of 1.98, a sintering yield of 82.11 wt-%, tumbler index of 71.33 wt-% and productivity of 1.83 t (m 2 h) −1 were achieved by CAP, which is 14.38, 14.55 and 22.82% higher than that by traditional sintering process (TSP), respectively. Meanwhile, the CAP decreased the solid fuel consumption by 5.6 kg coke /t product . The metallurgical properties results showed that the CAP product could be used as high-quality blast furnace burdens. Owing to the excellent agglomeration indexes and low solid fuel consumption, the CAP is expected to have widespread applications in the preparation of blast furnace burdens from superfine iron concentrates.

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Section: Introductionmentioning

confidence: 99%

Effective preparation of blast furnace burdens from superfine iron concentrates by composite agglomeration process

Zhang

et al. 2019

Ironmaking & Steelmaking

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“…The effects of bed temperature and atmosphere on the iron ore sintering process were studied by Zhang et al, [9] Hsieh and Whiterman. [10,11] It was found that the bed temperature affected the sintering kinetics, but the atmosphere was only a factor that influences thermodynamics. A series of studies on the FGRS have been carried out by our group and co-workers during the pass decades [12][13][14][15][16][17][18].…”

Section: Introductionmentioning

confidence: 99%

Sintering behaviours of iron ore with flue gas circulation

Chen

Fan

Gan

et al. 2017

Ironmaking & Steelmaking

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Flue gas circulation is an important method for energy conservation and pollutant emission reduction in iron ore sintering. In this paper the effects of flue gas recirculation ratio on sintering of different iron ores including haematite, magnetite and limonite were studied by illustrating the variation of sinter bed temperature, atmosphere and mineralisation characteristics of different types of iron ores induced by the circulation. It shows that the proper flue gas circulation ratios for haematite, magnetite and limonite are 37, 30 and 25%, respectively. For magnetite ore, preheating and high consumption of oxygen in combustion zone caused more silicate minerals and less acicular calcium ferrite, thereby lowering sinter tumbler strength. As for haematite ore, the rapid change of temperatures of combustion, melting and solidification zones leads to elevated combustion efficiency and increased formation of acicular calcium ferrite, which enhances the sinter strength. When using limonite ore as the main raw material, high oxygen consumption, lower maximum temperature of sintering bed, higher cooling rate and larger porosity of sinter are observed.

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Effects of process parameters on the growth behavior and granule size distribution of iron ore mixtures in a novel high-shear granulator

You

Guo

et al. 2022

Int J Miner Metall Mater

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Effect of Iron Ore Concentrate on Sintering Properties

Cited by 10 publications

References 6 publications

Effective preparation of blast furnace burdens from superfine iron concentrates by composite agglomeration process

Effective preparation of blast furnace burdens from superfine iron concentrates by composite agglomeration process

Sintering behaviours of iron ore with flue gas circulation

Effects of process parameters on the growth behavior and granule size distribution of iron ore mixtures in a novel high-shear granulator

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