Modelling fuel combustion in iron ore sintering

Zhao, Jia Pei; Loo, C. E.; Dukino, R. D.

doi:10.1016/j.combustflame.2014.09.026

Cited by 82 publications

(48 citation statements)

References 37 publications

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“…For a given ore blend, granulation conditions can determine the size distribution of the granules and the location of coke particles -which has an influence on combustion rate and efficiency. 5,6) At a plant, the granulated sinter mix discharges from the feed hopper onto an inclined rill plate, and from there onto the moving strand. Granules segregate during this process because of differences in size and density.…”

Section: Improving Energy Efficiency In Iron Ore Sintering Through Sementioning

confidence: 99%

“…A well-validated hot model 1,5,7) has been formulated to describe heat transfer from the flame front to the bed and is used in this study. Data on segregated beds from the literature is used in the simulations.…”

Section: Improving Energy Efficiency In Iron Ore Sintering Through Sementioning

confidence: 99%

“…The developed mathematical model of the iron ore sintering process 1,5,20) was used to quantify the effect of segregation on heat transfer and flame front properties. Modifications were added to take into account the variations in the segregation parameters down a bed and also variations in sintering airflow rate.…”

Section: Modelling Heat Treatment In Segregated Bedsmentioning

confidence: 99%

“…This method has been proved effective in improving the accuracy of airflow rate measurement. 5) For bed temperature measurement, the thermocouples were made using 0.5 mm diameter platinum and platinum/13% rhodium wires. The wires were protected in sheaths and inserted into three bed locations.…”

Section: Modelling Heat Treatment In Segregated Bedsmentioning

confidence: 99%

See 3 more Smart Citations

Improving Energy Efficiency in Iron Ore Sintering through Segregation: a Theoretical Investigation

Zhao¹,

Loo²,

Ellis

2016

ISIJ Int.

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Section: Improving Energy Efficiency In Iron Ore Sintering Through Sementioning

confidence: 99%

Section: Improving Energy Efficiency In Iron Ore Sintering Through Sementioning

confidence: 99%

Section: Modelling Heat Treatment In Segregated Bedsmentioning

confidence: 99%

Section: Modelling Heat Treatment In Segregated Bedsmentioning

confidence: 99%

See 2 more Smart Citations

Improving Energy Efficiency in Iron Ore Sintering through Segregation: a Theoretical Investigation

Zhao¹,

Loo²,

Ellis

2016

ISIJ Int.

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“…Since coke is the main fuel in the sintering process, the change of the coke ratio can vary the atmospheric nature and temperature level of the sintered material. Additionally, the coke ratio can affect the mineral composition and structure of sintered ore, which also has a great influence on the quality of the sintered ore [11][12][13][14][15][16][17][18]. Therefore, the study of the effect of the coke ratio in the sintering behavior of HCVTM is critical to improving the sinter quality and energy efficiency.…”

Section: Introductionmentioning

confidence: 99%

Influence of Coke Ratio on the Sintering Behavior of High-Chromium Vanadium-Titanium Magnetite

et al. 2017

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High-chromium vanadium and titanium magnetite (HCVTM) sinter has poor properties. The coke ratio has an important effect on the behavior of HCVTM sintering as it affects the mineral phases in the high-chromium vanadium and titanium sinter (HCVTS) via changing the sintering temperature and atmosphere. In this work, the sintering behavior of HCVTM mixed with varying coke ratios was investigated through sintering pot tests, X-ray diffraction (XRD), gas chromatographic analysis, and mineral phase analysis. The results show that, with the increase of the coke ratio from 4.0% to 6.0%, leading to the increase of the combustion ratio of the flue gas, the vertical sintering rate and sinter productivity decrease. Meanwhile, with the change of the coke ratio, the content of magnetite, silicate, and perovskite increase, while the hematite and calcium ferrite decrease. In addition, the tumble strength and reduction ability of HCVTS decrease, and its degradation strength increase. It was found that the appropriate coke ratio for the sintering process was 5.0 wt %.

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Effect of granulating characteristics on harmless disposal of waste selective catalytic reduction catalyst in iron ore sintering process

Zhou

Zuo

et al. 2020

Asia-Pacific J Chem Eng

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The harmless treatment of waste selective catalytic reduction catalyst has become a thorny problem. In this investigation, a new method of harmless disposal of waste catalyst by utilizing iron ore sintering process is proposed, and the effect of granulating characteristics is studied. Results show that better bed permeability, shorter sintering time, and faster flame front speed could be characterized by applying higher granulating moisture. Sinter mineral and microstructure research found that wider distribution of skeleton‐crystal hematite while less calcium ferrite could be observed at higher granulating moisture. The porosity of sinter increases from 30.82% for granulating moisture 6.0% to 36.54% for granulating moisture 7.5% while the circle factor of pores decreases. Sinter index research results indicate that both tumbler index and yield have a descended trend whereas flame front speed increases with higher granulating moisture added. Productivity first increases then drops with increasing granulating moisture. Finally, a comprehensive index is used to evaluate the influence of granulating characteristics on sintering process, which first increases from 100 to 121 as granulating moisture increases from 6% to 6.5% then drops to 70.8 when granulating moisture further increases to 7.5%. The granulating moisture of 6.5% is recommended in present study.

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Modelling fuel combustion in iron ore sintering

Cited by 82 publications

References 37 publications

Improving Energy Efficiency in Iron Ore Sintering through Segregation: a Theoretical Investigation

Improving Energy Efficiency in Iron Ore Sintering through Segregation: a Theoretical Investigation

Influence of Coke Ratio on the Sintering Behavior of High-Chromium Vanadium-Titanium Magnetite

Effect of granulating characteristics on harmless disposal of waste selective catalytic reduction catalyst in iron ore sintering process

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