TRIBO-ELECTROSTATIC SEPARATION OF MIXED GRANULAR INSULATORS

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Presentation transcript:

TRIBO-ELECTROSTATIC SEPARATION OF MIXED GRANULAR INSULATORS ABS HIPS Thami ZEGHLOUL Lucien DASCALESCU PPRIME Institute University of Poitiers FRANCE HDPE

OUTLINE Background Tribocharging devices Tribo- electrostatic separators Conclusions & Perspectives OUTLINE

Background ELECTROSTATICS Tribocharging devices TRIBOLOGY Tribo-electrostatic separators Conclusions & Perspectives TRIBOLOGY Charles Auguste COULOMB b. 1736: Angoulême d. 1806: Paris PPRIME Institute – Angoulême Campus: Two research units: “TRIBOLUB” – “ELSTAT”

Triboelectric series Tribo- charging mechanisms Background Ref. (+) (-) Iuga et al. Al PMMA PE PET PP PVC Diaz & Felix-Navarro PA PC PS PTFE Park et al. ABS HIPS Background Tribocharging devices Tribo-electrostatic separators Conclusions & Perspectives Tribo- charging mechanisms

Industrial tribo-electrostatic separators Background Tribocharging devices Tribo-electrostatic separators Conclusions & Perspectives Hamos GmbH, Penzberg, Germany

Fluidized Bed Device Tribocharging devices Background Tribo-electrostatic separators Conclusions & Perspectives 6

PET concentrate obtained by electrostatic separation of the Choice of device wall material Background Tribocharging devices Tribo-electrostatic separators Conclusions & Perspectives PET concentrate obtained by electrostatic separation of the 90% PET & 10% PVC mixture 7

Tribocharging devices Propeller-type device Background Tribocharging devices Tribo-electrostatic separators Conclusions & Perspectives Cyclone-type device

Vibratory device Tribocharging devices Background Tribo-electrostatic separators Conclusions & Perspectives 1: tribocharging tubes; 2: opening for the evacuation of the charged particles; 3: slider; 4: base plate; 5: tube-carrying plate; 6: eccentric wheel; 7: driving electric motor

Free-fall electrostatic separator Feeder Upper Frame HV Electrodes Lower Collector Background Tribocharging devices Tribo-electrostatic separators Conclusions & Perspectives Vibratory tribocharging device

Tribo-aero-electrostatic Separator for Granular Plastics from WEEE Background Tribocharging devices Tribo-electrostatic separators Conclusions & Perspectives Patent FR2943561 (2009), WO2010109096 (2010)

Tribo-aero-electrostatic Separator for Granular Plastics from WEEE Background Tribocharging devices Tribo-electrostatic separators Conclusions & Perspectives ABS HIPS

Industrial and pilot-plant TAE separators, designed for APR2, France Background Tribocharging devices Tribo-electrostatic separators Conclusions & Perspectives ABS HIPS

Multi-modal Electrostatic Separator for Sub-millimetric Granular Materials Background Tribocharging devices Tribo-electrostatic separators Conclusions & Perspectives Partners : INRA Montpellier, U. Tech. Cluj-Napoca, U. Sidi-Bel-Abbes

Tribo-Aero-Electrostatic Separator for Sub-millimetric Granular Materials Background Tribocharging devices Tribo-electrostatic separators Conclusions & Perspectives Partners : CITF, APR2, INRA Montpellier, U. Sidi-Bel-Abbes

Using of DBD to modify the surface state of the granular plastics and improve the efficiency of triboelectric charging of larger particles Background Tribocharging devices Tribo-electrostatic separators Conclusions & Perspectives Numerical modelling of the tribo-electrostatic separation Processes Development of novel applications of the

Thank you ! 17