Simulation of particle accumulation in high gradient magnetic separation based on static buildup model (SBM)

Xue, Zixing; Wang, Yuhua; Zheng, Xiayu; Lu, Dongfang; Sun, Zixi; Hu, Zhicheng

doi:10.1016/j.mineng.2021.107290

Cited by 5 publications

(2 citation statements)

References 39 publications

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“…The static buildup model (SBM) is a steady-state theory based on force analysis of each layer of accumulation (Xue et al, 2022). The SBM hypothesis states that particles already contact the surface of a deposit without having to pay attention to the particle trajectories before their arrival.…”

Section: Description Of Sbm Theorymentioning

confidence: 99%

“…Static buildup model (SBM) is an analytical approach to predict the upstream buildup profile of a circular matrix in high-gradient magnetic separation (HGMS), it is often used to predict the capturing capacity of a magnetic matrix for certain types of particles (Xue et al, 2022). In this study, the accumulation profile of chalcopyrite was theoretically analyzed using a static buildup model (SBM) and compared with hematite.…”

Section: Introductionmentioning

confidence: 99%

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Comparative investigation on capture characteristics of chalcopyrite and hematite in PHGMS process

Tao,

Chen,

Dai

et al. 2024

Physicochem. Probl. Miner. Process.

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Pulsating high-gradient magnetic separation (PHGMS) is a promising method of separating chalcopyrite from other minerals with similar floatability. However, the capture characteristics of chalcopyrite in PHGMS process remains poorly understood. In this study, the difference in the capture capacity of chalcopyrite and hematite, a typical weak magnetic mineral, was theoretically compared. The effects of the key operating parameters, i.e., magnetic induction, slurry flow rate, and magnetic wire diameter, on the capture difference of chalcopyrite and hematite were investigated through experimental verification. The comparison results showed that chalcopyrite shared similar capture trend with hematite. The capture mass weight of the matrix decreased with an increase in the pulsating frequency, slurry flow rate, and magnetic wire diameter, but it increased with improved magnetic induction. However, chalcopyrite exhibited an obviously smaller capture mass weight due to its lower susceptibility, which required a higher magnetic induction, slower flow rate, lower pulsating frequency and smaller matrix diameter for high efficient recovery of chalcopyrite. This study provides a reference for the PHGMS of separating chalcopyrite from typically applied weakly magnetic minerals by PHGMS process.

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Section: Description Of Sbm Theorymentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%