Analysis of a novel insulating conveyor-belt tribo-electrostatic separator for highly humid granular products

Benaouda, Imen; Zelmat, Mohamed Elmouloud; Ouiddir, Rabah; Dăscălescu, Lucian; Tilmatine, Amar

doi:10.1016/j.elstat.2019.103357

Cited by 9 publications

(2 citation statements)

References 34 publications

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“…After entering a high‐voltage electric field, charged particles with different polarities have exhibited varying trajectories to realize separation. [ 18–21 ]…”

Section: Introductionmentioning

confidence: 99%

“…After entering a high-voltage electric field, charged particles with different polarities have exhibited varying trajectories to realize separation. [18][19][20][21] At present, electrostatic separation can help obtain high-purity and high-recovery-rate products for two types of polymer mixtures. [22,23] However, three or more types of polymers exist in a waste vehicle polymer mixture.…”

Section: Introductionmentioning

confidence: 99%

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Purity prediction of the two‐stage high voltage electrostatic separation of a mixture of three polymers

Tian

Zhang

2022

Polymer Engineering & Sci

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Clean and efficient separation is an important requirement for the high‐value‐added recycling of end‐of‐life automobile polymers. In this study, polymer particles for vehicles were considered as research objects, and a two‐stage electrostatic separation device was designed to separate a mixture of three polymer particles. A kinematic model of friction‐charged particles in a two‐stage free‐fall separator was established. Then, a suitable time period for triboelectrostatic charging with regard to electrostatic separation was determined, and a charge–mass ratio distribution of mixed‐polymer particles, that is, polyamide (PA), polypropylene (PP), and polyethylene (PE), was measured using a Faraday cage based on the triboelectrostatic charging experiment of three types of particles in a friction barrel‐type tribocharger. The theoretical purities of PA, PP, and PE were calculated using the motion and particle charge–mass ratio distribution models were 100.00%, 89.51%, and 92.95% respectively. The experimental purities of PA, PP, and PE were 94.68%, 80.76%, and 84.27%, respectively, which is consistent with the theoretical purity. Results of the study can provide a theoretical and experimental reference for one‐pass electrostatic separation of three kinds of plastic particles.

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“…After entering a high‐voltage electric field, charged particles with different polarities have exhibited varying trajectories to realize separation. [ 18–21 ]…”

Section: Introductionmentioning

confidence: 99%