Proceedings of the 2024 10th International Conference on Advances in Energy Resources and Environment Engineering (ICAESEE 2024)

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A Study of the Effect of Cross-Sectional Shape on the Sorting Flow Field of a Spiral Concentrator

Authors
Huizhong Liu1, 2, *, Ao Huang1
1School of Mechanical and Electrical Engineering, Jiangxi University of Science and Technology, Ganzhou, 341000, China
2Jiangxi Province Engineering Research Center for Mechanical and Electrical of Mining and Metallurgy, Ganzhou, 341000, China
*Corresponding author. Email: huizhong6@163.com
Corresponding Author
Huizhong Liu
Available Online 9 May 2025.
DOI
10.2991/978-94-6463-708-3_48How to use a DOI?
Keywords
spiral concentrator; composite curvilinear cross section; CFD simulation; flow field characterization
Abstract

Spiral concentrator is a kind of fluid-film gravity concentrator, and the flow pattern of the slurry film in the spiral chute is closely related to the geometry of the spiral chute, especially the cross-sectional shape. In order to explore the influence of the cross-section shape of the spiral concentrator on the sorting flow pattern, this paper utilizes the CFD technology to construct three kinds of flow film with the cross-section shapes of “ellipse”, “cubic parabola” and “composite curve”, which are the same as that of the spiral concentrator. This paper uses CFD technology to construct three kinds of CFD models of “ellipse”, “cubic parabola” and “composite curve”, and with the help of the constructed model, the sorting flow state of the three kinds of cross-section shapes of spiral concentrator was analyzed and studied comparatively. The results show that the thickness and Reynolds number of the flow film at the inner edge of the spiral chute with elliptical cross-section are larger, which is more suitable for the loose and stratified sorting of coarse-grained minerals. The spiral chute with composite curve cross-section has a larger laminar flow area and a wider secondary circulation area, which is conducive to the sorting and recovery of fine-grained minerals.

Copyright
© 2025 The Author(s)
Open Access
Open Access This chapter is licensed under the terms of the Creative Commons Attribution-NonCommercial 4.0 International License (http://creativecommons.org/licenses/by-nc/4.0/), which permits any noncommercial use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license and indicate if changes were made.

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Volume Title
Proceedings of the 2024 10th International Conference on Advances in Energy Resources and Environment Engineering (ICAESEE 2024)
Series
Atlantis Highlights in Engineering
Publication Date
9 May 2025
ISBN
978-94-6463-708-3
ISSN
2589-4943
DOI
10.2991/978-94-6463-708-3_48How to use a DOI?
Copyright
© 2025 The Author(s)
Open Access
Open Access This chapter is licensed under the terms of the Creative Commons Attribution-NonCommercial 4.0 International License (http://creativecommons.org/licenses/by-nc/4.0/), which permits any noncommercial use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license and indicate if changes were made.

Cite this article

risenwbib
TY  - CONF
AU  - Huizhong Liu
AU  - Ao Huang
PY  - 2025
DA  - 2025/05/09
TI  - A Study of the Effect of Cross-Sectional Shape on the Sorting Flow Field of a Spiral Concentrator
BT  - Proceedings of the 2024 10th International Conference on Advances in Energy Resources and Environment Engineering (ICAESEE 2024)
PB  - Atlantis Press
SP  - 453
EP  - 465
SN  - 2589-4943
UR  - https://doi.org/10.2991/978-94-6463-708-3_48
DO  - 10.2991/978-94-6463-708-3_48
ID  - Liu2025
ER  -