title: Dynamics of spherical metallic particles in cylinder electrostatic separators/purifiers.
abstract: This paper presents a theoretical analysis of the dynamics of spherical metallic particles in electrostatic separators/purifiers (ESPs). The particle equations of motion are numerically solved in two dimensions using a computational algorithm. The ESPs consist of a pair of conductor cylinder electrodes. The upper cylinder is energized by HVdc, while the lower one is grounded and fixed horizontally on a revolvable axis. Some phenomena and aspects of separation process are explained and depicted including lifting off, impact, "motion collapse" and "sudden bouncing". The results reveal that the several phenomena depend on initial position, radius and density of the particle, curvature of the cylinder electrodes, distance between the electrodes and amplitude of the applied voltage. Optimization of the parameters is presented in order to get better separation/purification processes.
authors.affiliation: School of Environmental Science and Engineering, Shanghai Jiao Tong University, Shanghai, PR China.
authors.forename: Hong-Zhou
authors.initials: HZ
authors.lastname: Lu
authors.forename: Jia
authors.initials: J
authors.lastname: Li
authors.forename: Jie
authors.initials: J
authors.lastname: Guo
authors.forename: Zhen-Ming
authors.initials: ZM
authors.lastname: Xu
mesh_terms: D008670:Metals / Q000737:chemistry*; D013056:Spectrophotometry, Ultraviolet; D055672:Static Electricity
chemical_list: D008670:Metals