Document Type

Journal Article

Publication Title

Powder Technology

Volume

397

Publisher

Elsevier

School

Centre for Sustainable Energy and Resources

RAS ID

42710

Comments

This is an Authors Accepted Manuscript version of an article published by Elsevier at: Chen, J., You, Z., Orozovic, O., & Wang, G. (2022). Modelling vertical water distribution and separation in the unsaturated coal and iron ores during oscillation. Powder Technology, 397, article 116996. https://doi.org/10.1016/j.powtec.2021.11.040

Chen, J., You, Z., Orozovic, O., & Wang, G. (2022). Modelling vertical water distribution and separation in the unsaturated coal and iron ores during oscillation. Powder Technology, 397, article 116996.

https://doi.org/10.1016/j.powtec.2021.11.040

Abstract

The effect of oscillation on the water distribution in unsaturated coal and iron ores plays a significant role in the material processing but has not been analysed quantitatively. This paper developed a model based on the Richards equation to describe the transient residual water distribution in the unsaturated coal and iron ores, and predicted the separated water with time. In this model, the effect of oscillation was quantised as a dynamic potential of the unsaturated water. The model was experimentally verified and applied to characterise the separated and residual water. The effects of initial water content, hydraulic conductivity, dynamic potential and bottom boundary were quantitatively analysed. The results showed that the dynamic potential affects the transient and steady water distribution for the overall height of the coal and iron ores. These findings can be applied to the minimisation of water distribution in wet coal or iron ores and optimisation of their processing.

DOI

10.1016/j.powtec.2021.11.040

Creative Commons License

Creative Commons Attribution-Noncommercial-No Derivative Works 4.0 License
This work is licensed under a Creative Commons Attribution-Noncommercial-No Derivative Works 4.0 License.

Available for download on Wednesday, January 31, 2024

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