from the conferences organized by TANGER Ltd. provisional website
The main object of this article is to present methods of electrical waste sorting and the subsequent processing of its metallic component. Electrical waste grit is formed by the crushing of electric current cable conductors and consists of pieces of copper wires and plastic granulate. The original sample was characterized by fundamental mechanical-physical properties, which are the angle of internal friction, density and morphology (shape and size distribution). Methods of electrical waste sorting were assessed on the basis of the obtained amount of pure copper component. This metal part of the sample was subsequently pelletized to facilitate re-use in the metallurgical industry. The first results showed that the vibrating sieve method is, in comparison with the pneumatic means, more efficient for this purpose. The produced copper pellets showed good mechanical resistance and hardness. The advantage of the densified metal component in the form of pellets appears to be the easier falling into the melting furnace, without unnecessary losses, in contrast to the lighter, untreated copper wires with a high specific surface.Keywords: Electrical waste, sorting, copper, pelletization
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