Mingsheng Xia, Guichuan Ye
The dynamic migration of mineral particles within spiral separators and its control via structural parameters are not yet fully understood, hindering efficiency improvements. To this end, a set of spiral separators with systematically adjusted structural parameters was designed. Extensive sampling of a 1–0.25 mm coal slurry yielded 120 samples from 6 separators, across 5 turns and 4 radial streams. Sink-float analysis revealed a well-defined three-stage separation mechanism: the roughing stage involves rapid segregation of light and heavy particles, while intermediate-density particles remain widely distributed; the intensified cleaning stage governs the radial migration of intermediate-density particles while simultaneously enriching the high-density and low-density fractions; and the final cleaning stage stabilizes the particle distribution and redirects misplaced particles. The influence of key structural parameters was also quantified: the composite cross-section outperformed cubic parabolic and elliptical profiles, markedly enhancing the separation of high-density and medium-high-density particles from the lighter product; increasing the trough inclination angle significantly promoted the radial inward migration of medium-high-density particles.
@article{fc4e69d1-f4d9-4470-83d0-a1c72d5325a6,
title={Stage-Optimized Intensification of Spiral Separation: Process Deconstruction and a Novel Spiral Separator Design},
author={Mingsheng Xia and Guichuan Ye},
year={2026},
language={English}
}TY - JOUR TI - Stage-Optimized Intensification of Spiral Separation: Process Deconstruction and a Novel Spiral Separator Design AU - Mingsheng Xia AU - Guichuan Ye PY - 2026 LA - English ER -
John Chadwick
This article surveys contemporary technological developments aimed at enhancing the efficiency, selectivity, and sustainability of gold extraction and
FATHI HABASHI
In the past few years, extractive metallurgy has been advancing gradually, despite the absence of remarkable new ideas. This paper aims to summarize t
Osvaldo Pavez, Pablo Herrera
Copper slag flotation was studied on an industrial scale at a concentrator plant in the region of Atacama, Chile. This study consisted of the physical
Cleophace Ngoie Mpinga
The thesis investigates alternative extraction strategies for platinum group metals (PGMs) from low-grade, high-chromium oxidized ores, which are incr
Gupta, A. and D.S. Yan
This work provides a comprehensive introductory treatment of mineral processing with a strong emphasis on the practical design and operation of benefi
Amin Rezaeizadeh, Silvia Mastellone
Power electronics converters are key enablers in the global energy transition for power generation, industrial and mobility applications; they convert