Factors that Influence the Fluidized-Bed Tribo-Electrostatic Separation of Plastic Granular Mixtures

Author

Calin, L. ; Iuga, A. ; Samuila, A. ; Dragan, C. ; Dascalescu, L.

Author_Institution

High Intensity Electr. Fields Lab., Tech. Univ. of Cluj-Napoca, Cluj-Napoca

fYear

2008

fDate

5-9 Oct. 2008

Firstpage

1

Lastpage

4

Abstract

The output of the electrostatic separation process is strongly dependent on the effectiveness of particle charging. Tribo-electrostatic separation is a solution allowing to sort out a mixture of two plastic granular mixture, using a tribo-charging device ad a free-fall separator. The aim of the present work is to evaluate the influence of air jet temperature and humidity of the fluidized bed device on the charging process, by analyzing the results of the tribo-electrostatic separation of a granular mixture containing 25 g ABS and 25 HIPS resulted from electronic wastes. Better results were obtained at 30% relative humidity and 35degC temperature of the fluidization air jet.

Keywords

electrostatic precipitators; fluidised beds; humidity; jets; separation; triboelectricity; air jet temperature; electronic wastes; fluidized-bed tribo-electrostatic separation; free-fall separator; humidity; plastic granular mixtures; tribo-charging device; Electrodes; Electrostatics; Fluidization; Hip; Humidity; Particle charging; Particle separators; Plastics; Separation processes; Temperature;

fLanguage

English

Publisher

ieee

Conference_Titel

Industry Applications Society Annual Meeting, 2008. IAS '08. IEEE

Conference_Location

Edmonton, Alta.

ISSN

0197-2618

Print_ISBN

978-1-4244-2278-4

Electronic_ISBN

0197-2618

Type

conf

DOI

10.1109/08IAS.2008.129

Filename

4658917