Improving iron-bearing dust pellets performance through synergistic action of dual-component organic binders: cellulose and starch interactions
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Tao Yang
and
Hong-ming Long
Abstract
Iron-bearing dust particles demonstrate poor pelletizing performance, resulting in weak and easily pulverized dust pellets, consequently reducing the efficiency of the rotary hearth furnace process. To address this issue, the partial substitution of bentonite with organic binders to create composite binders offers several advantages and represents a crucial strategy for enhancing pellet performance. In this study, we established a liquid bridge model between iron-bearing dust particles and investigated the mechanism of organic binders (OB-A and OB-B) enhancing the cold strength of iron-bearing dust pellets using infrared spectroscopy and contact angle analysis methods. While OB-A enhanced the hydrophilicity of particle surfaces and promoted denser pellet structures, OB-B significantly improved the compressive strength of dry pellets by forming a sturdy network structure during the drying process. These discoveries underscore the potential of composite binders, notably AH-1 binders (comprising 2 % bentonite, 0.18 % OB-A, and 0.8 % OB-B), to enhance both the green and dry pellet performance of iron-bearing dust pellets. Furthermore, the interaction between OB-A and OB-B was found to result in a denser and stronger pellet structure. Such improvements have far-reaching implications for boosting the efficiency of the rotary hearth furnace process.
Funding source: Outstanding Youth Fund of Anhui Province
Award Identifier / Grant number: 2208085J19
Funding source: National Key Research and Development Program of China
Award Identifier / Grant number: 2022YFC3901405
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Research ethics: The local Institutional Review Board deemed the study exempt from review.
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Informed consent: Not applicable.
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Author contributions: The authors have accepted responsibility for the entire content of this manuscript and approved its submission.
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Use of Large Language Models, AI and Machine Learning Tools: None declared.
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Conflict of interest: All other authors state no conflict of interest.
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Research funding: This work was supported by the National Key Research and Development Program of China (Grant No. 2022YFC3901405) and the Outstanding Youth Fund of Anhui Province (Grant No. 2208085J19).
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Data availability: The raw data can be obtained on request from the corresponding author.
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Supplementary Material
This article contains supplementary material (https://doi.org/10.1515/ijcre-2024-0139).
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Articles in the same Issue
- Frontmatter
- Review
- A critical analysis on synthesis of nanofluids and factors affecting thermal conductivity of nanofluids for heat transfer applications: a review
- Articles
- Improving iron-bearing dust pellets performance through synergistic action of dual-component organic binders: cellulose and starch interactions
- Preparation of mesoporous lignin-based aerogels for organic dyes removal
- Power generation potential and assessment of producer gas quality from blended rubber shell and palm kernel shell in open core downdraft gasifier
- Bi2S3 loaded MXene Ti3C2T x nanosheet with an adsorption-photocatalytic synergistic removal for tetracycline
- Preparation of activated carbon from waste tea and its performance in adsorptive desulfurization of model fuel
- Study on friction pressure drop characteristics of gas flow through multi-size irregular high-purity magnesia bed layer
- Unlocking sustainable cooling: a numerical analysis of ice slurry flow in 180° U-bends-impacts of bend radius/pipe radius ratios and pressure drops on system performance
- DEM investigation on effect of internal pipe on active layer characterization in a drum
