Open AccessImproved mathematical model of particle trajectories in multimodal electrostatic separators
Author(s) -
Mohamed Maammar,
Thami Zeghloul,
Wessim Aksa,
Karim Medles,
Ahlem Benabderrahmane,
Pascal Renoux,
Lucian Dăscălescu
Publication year - 2019
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1322/1/012020
Subject(s) - computation , electrical conductor , separator (oil production) , triboelectric effect , mechanics , electrode , corona (planetary geology) , electrostatics , particle (ecology) , mechanical engineering , materials science , computer science , simulation , physics , engineering , composite material , geology , algorithm , oceanography , quantum mechanics , astrobiology , venus , thermodynamics
The multimodal electrostatic separator has been designed to facilitate the feasibility assessment of corona-, tribo-, or purely-electrostatic processes of selective sorting of the constituents of granular mixtures. The versatility of the separator has imposed the development of an equally-agile simulation program for modelling the particle behaviour in each of the operational configurations of the machine. Thus, the paper discusses the numerical models that describe the various specific physical phenomena: corona-charging at the surface of the belt conveyor; induction charging of the conductive particles in contact with the grounded electrode; impact of particles with the rotating-roll high-voltage electrode. An example of conductive and insulating particles trajectories computation is given. The simulated results are compared with the experimental observations.