코로나 방전 정전선별기 내 PCB 입자의 이동궤도 시뮬레이션

초록

The trajectories of PCB(Printed Circuit Board) particles in the corona discharge electrostatic separation was simulated. ThePCB particles are prepared by crushing bare board, which disassembled from electronic components, consist mostly of copperand FR-4(Flame Retardant Level-4) Firstly, a model was established for calculating of detachment points of PCB particles fromthe rotating electrode in separator. The model of detachment points was derived from equilibrium of force such as gravity force,centrifugal force, electrostatic force. The trajectories of particles after detachment was calculated by acceleration derived fromtime-integrating method of motion equation. In this simulation, particle size, supplied voltage, rotation speed of rotating roll electrodeand angle of induction electrode were adopted as variables. While the trajectories of FR-4 particles were affected by allvariables, rotation speed of rotating roll electrode was dominant variables affecting trajectories of copper particles.

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