Research on Precise Classification Technology of Tailings Sand

Zhang Yinxiang; Wang Zhaojia; Qiu Junfu; Zhang Ruifeng; Rui Yafeng

doi:doi:10.11648/j.ijmsa.20251406.13

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| Peer-Reviewed

Research on Precise Classification Technology of Tailings Sand

Zhang Yinxiang^*

, Wang Zhaojia

, Qiu Junfu

, Zhang Ruifeng

, Rui Yafeng

Published in International Journal of Materials Science and Applications (Volume 14, Issue 6)

Received: 11 November 2025 Accepted: 21 November 2025 Published: 29 December 2025

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Abstract

It is difficult to achieve dry and precise classification for fine sand characterized by small particle size, high content of micro-powder, and unstable gradation. In this study, a rectangle swing screen assisted by airflow & ultrasonic was employed to achieve precise classification of fine tailings. Through detailed process calculations and sample analysis, the following conclusions can be drawn: The movement trajectory of the fine sand within the rectangle swing screen follows a 360° parabolic path. The current theoretical formula for calculating the resistance coefficient of the transitional flow field within the airflow-assisted rectangle swing screen should be revised. After pre-dried, the magnetic tailings, vanadium-titanium magnetic tailings and molybdenum tailings were precise classified by the new multi-field coupled classifiers. The new classifiers enables the production of products with a mixed-grade rate of less than 5%. The classification efficiency is influenced by the inclination angle of the screen, the length of the sieve, the air velocity, the ultrasonic amplitude & etc., and parameters can be reasonably set according to engineering requirements. Furthermore, the prepared products have been successfully applied in the production of dry-mixed mortar and can be manufactured on a batch scale. The dry-mixed mortar containing tailings has been applied in urban renewal projects and has achieved good results.

Published in	International Journal of Materials Science and Applications (Volume 14, Issue 6)
DOI	10.11648/j.ijmsa.20251406.13
Page(s)	270-278
Creative Commons	This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited.
Copyright	Copyright © The Author(s), 2025. Published by Science Publishing Group

Keywords

Tailings Sand, Classification, Rectangle Swing Screen, Airflow & Ultrasonic-assisted Classification

References

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[14]	Wen Bangchun, Liu Fengqiao, Liu Jie Design and commissioning of vibrating screen, vibrating feeder, and vibrating conveyor [M]. Beijing: Chemical Industry Press, 1989. In Chinese.
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APA Style

Yinxiang, Z., Zhaojia, W., Junfu, Q., Ruifeng, Z., Yafeng, R. (2025). Research on Precise Classification Technology of Tailings Sand. International Journal of Materials Science and Applications, 14(6), 270-278. https://doi.org/10.11648/j.ijmsa.20251406.13

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ACS Style

Yinxiang, Z.; Zhaojia, W.; Junfu, Q.; Ruifeng, Z.; Yafeng, R. Research on Precise Classification Technology of Tailings Sand. Int. J. Mater. Sci. Appl. 2025, 14(6), 270-278. doi: 10.11648/j.ijmsa.20251406.13

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AMA Style

Yinxiang Z, Zhaojia W, Junfu Q, Ruifeng Z, Yafeng R. Research on Precise Classification Technology of Tailings Sand. Int J Mater Sci Appl. 2025;14(6):270-278. doi: 10.11648/j.ijmsa.20251406.13

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@article{10.11648/j.ijmsa.20251406.13,
  author = {Zhang Yinxiang and Wang Zhaojia and Qiu Junfu and Zhang Ruifeng and Rui Yafeng},
  title = {Research on Precise Classification Technology of Tailings Sand},
  journal = {International Journal of Materials Science and Applications},
  volume = {14},
  number = {6},
  pages = {270-278},
  doi = {10.11648/j.ijmsa.20251406.13},
  url = {https://doi.org/10.11648/j.ijmsa.20251406.13},
  eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.ijmsa.20251406.13},
  abstract = {It is difficult to achieve dry and precise classification for fine sand characterized by small particle size, high content of micro-powder, and unstable gradation. In this study, a rectangle swing screen assisted by airflow & ultrasonic was employed to achieve precise classification of fine tailings. Through detailed process calculations and sample analysis, the following conclusions can be drawn: The movement trajectory of the fine sand within the rectangle swing screen follows a 360° parabolic path. The current theoretical formula for calculating the resistance coefficient of the transitional flow field within the airflow-assisted rectangle swing screen should be revised. After pre-dried, the magnetic tailings, vanadium-titanium magnetic tailings and molybdenum tailings were precise classified by the new multi-field coupled classifiers. The new classifiers enables the production of products with a mixed-grade rate of less than 5%. The classification efficiency is influenced by the inclination angle of the screen, the length of the sieve, the air velocity, the ultrasonic amplitude & etc., and parameters can be reasonably set according to engineering requirements. Furthermore, the prepared products have been successfully applied in the production of dry-mixed mortar and can be manufactured on a batch scale. The dry-mixed mortar containing tailings has been applied in urban renewal projects and has achieved good results.},
 year = {2025}
}

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TY  - JOUR
T1  - Research on Precise Classification Technology of Tailings Sand
AU  - Zhang Yinxiang
AU  - Wang Zhaojia
AU  - Qiu Junfu
AU  - Zhang Ruifeng
AU  - Rui Yafeng
Y1  - 2025/12/29
PY  - 2025
N1  - https://doi.org/10.11648/j.ijmsa.20251406.13
DO  - 10.11648/j.ijmsa.20251406.13
T2  - International Journal of Materials Science and Applications
JF  - International Journal of Materials Science and Applications
JO  - International Journal of Materials Science and Applications
SP  - 270
EP  - 278
PB  - Science Publishing Group
SN  - 2327-2643
UR  - https://doi.org/10.11648/j.ijmsa.20251406.13
AB  - It is difficult to achieve dry and precise classification for fine sand characterized by small particle size, high content of micro-powder, and unstable gradation. In this study, a rectangle swing screen assisted by airflow & ultrasonic was employed to achieve precise classification of fine tailings. Through detailed process calculations and sample analysis, the following conclusions can be drawn: The movement trajectory of the fine sand within the rectangle swing screen follows a 360° parabolic path. The current theoretical formula for calculating the resistance coefficient of the transitional flow field within the airflow-assisted rectangle swing screen should be revised. After pre-dried, the magnetic tailings, vanadium-titanium magnetic tailings and molybdenum tailings were precise classified by the new multi-field coupled classifiers. The new classifiers enables the production of products with a mixed-grade rate of less than 5%. The classification efficiency is influenced by the inclination angle of the screen, the length of the sieve, the air velocity, the ultrasonic amplitude & etc., and parameters can be reasonably set according to engineering requirements. Furthermore, the prepared products have been successfully applied in the production of dry-mixed mortar and can be manufactured on a batch scale. The dry-mixed mortar containing tailings has been applied in urban renewal projects and has achieved good results.
VL  - 14
IS  - 6
ER  -

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Author Information

Zhang Yinxiang

State Key Laboratory of Materials Low-Carbon Recycling, Beijing Building Materials Academy of Sciences Research, Beijing, China

Contact Email

http://orcid.org/0009-0003-1635-4495
Wang Zhaojia

State Key Laboratory of Materials Low-Carbon Recycling, Beijing Building Materials Academy of Sciences Research, Beijing, China

Contact Email

http://orcid.org/0009-0000-3294-7387
Qiu Junfu

State Key Laboratory of Materials Low-Carbon Recycling, Beijing Building Materials Academy of Sciences Research, Beijing, China

Contact Email

http://orcid.org/0009-0001-0689-0054
Zhang Ruifeng

State Key Laboratory of Materials Low-Carbon Recycling, Beijing Building Materials Academy of Sciences Research, Beijing, China

Contact Email

http://orcid.org/0009-0008-1892-5489
Rui Yafeng

State Key Laboratory of Materials Low-Carbon Recycling, Beijing Building Materials Academy of Sciences Research, Beijing, China

Contact Email

http://orcid.org/0000-0002-8751-6100

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Plain Text BibTeX RIS

APA Style

Yinxiang, Z., Zhaojia, W., Junfu, Q., Ruifeng, Z., Yafeng, R. (2025). Research on Precise Classification Technology of Tailings Sand. International Journal of Materials Science and Applications, 14(6), 270-278. https://doi.org/10.11648/j.ijmsa.20251406.13

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ACS Style

Yinxiang, Z.; Zhaojia, W.; Junfu, Q.; Ruifeng, Z.; Yafeng, R. Research on Precise Classification Technology of Tailings Sand. Int. J. Mater. Sci. Appl. 2025, 14(6), 270-278. doi: 10.11648/j.ijmsa.20251406.13

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AMA Style

Yinxiang Z, Zhaojia W, Junfu Q, Ruifeng Z, Yafeng R. Research on Precise Classification Technology of Tailings Sand. Int J Mater Sci Appl. 2025;14(6):270-278. doi: 10.11648/j.ijmsa.20251406.13

Copy | Download

@article{10.11648/j.ijmsa.20251406.13,
  author = {Zhang Yinxiang and Wang Zhaojia and Qiu Junfu and Zhang Ruifeng and Rui Yafeng},
  title = {Research on Precise Classification Technology of Tailings Sand},
  journal = {International Journal of Materials Science and Applications},
  volume = {14},
  number = {6},
  pages = {270-278},
  doi = {10.11648/j.ijmsa.20251406.13},
  url = {https://doi.org/10.11648/j.ijmsa.20251406.13},
  eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.ijmsa.20251406.13},
  abstract = {It is difficult to achieve dry and precise classification for fine sand characterized by small particle size, high content of micro-powder, and unstable gradation. In this study, a rectangle swing screen assisted by airflow & ultrasonic was employed to achieve precise classification of fine tailings. Through detailed process calculations and sample analysis, the following conclusions can be drawn: The movement trajectory of the fine sand within the rectangle swing screen follows a 360° parabolic path. The current theoretical formula for calculating the resistance coefficient of the transitional flow field within the airflow-assisted rectangle swing screen should be revised. After pre-dried, the magnetic tailings, vanadium-titanium magnetic tailings and molybdenum tailings were precise classified by the new multi-field coupled classifiers. The new classifiers enables the production of products with a mixed-grade rate of less than 5%. The classification efficiency is influenced by the inclination angle of the screen, the length of the sieve, the air velocity, the ultrasonic amplitude & etc., and parameters can be reasonably set according to engineering requirements. Furthermore, the prepared products have been successfully applied in the production of dry-mixed mortar and can be manufactured on a batch scale. The dry-mixed mortar containing tailings has been applied in urban renewal projects and has achieved good results.},
 year = {2025}
}

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TY  - JOUR
T1  - Research on Precise Classification Technology of Tailings Sand
AU  - Zhang Yinxiang
AU  - Wang Zhaojia
AU  - Qiu Junfu
AU  - Zhang Ruifeng
AU  - Rui Yafeng
Y1  - 2025/12/29
PY  - 2025
N1  - https://doi.org/10.11648/j.ijmsa.20251406.13
DO  - 10.11648/j.ijmsa.20251406.13
T2  - International Journal of Materials Science and Applications
JF  - International Journal of Materials Science and Applications
JO  - International Journal of Materials Science and Applications
SP  - 270
EP  - 278
PB  - Science Publishing Group
SN  - 2327-2643
UR  - https://doi.org/10.11648/j.ijmsa.20251406.13
AB  - It is difficult to achieve dry and precise classification for fine sand characterized by small particle size, high content of micro-powder, and unstable gradation. In this study, a rectangle swing screen assisted by airflow & ultrasonic was employed to achieve precise classification of fine tailings. Through detailed process calculations and sample analysis, the following conclusions can be drawn: The movement trajectory of the fine sand within the rectangle swing screen follows a 360° parabolic path. The current theoretical formula for calculating the resistance coefficient of the transitional flow field within the airflow-assisted rectangle swing screen should be revised. After pre-dried, the magnetic tailings, vanadium-titanium magnetic tailings and molybdenum tailings were precise classified by the new multi-field coupled classifiers. The new classifiers enables the production of products with a mixed-grade rate of less than 5%. The classification efficiency is influenced by the inclination angle of the screen, the length of the sieve, the air velocity, the ultrasonic amplitude & etc., and parameters can be reasonably set according to engineering requirements. Furthermore, the prepared products have been successfully applied in the production of dry-mixed mortar and can be manufactured on a batch scale. The dry-mixed mortar containing tailings has been applied in urban renewal projects and has achieved good results.
VL  - 14
IS  - 6
ER  -

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