Method and device for manufacturing products by utilizing waste materials of various kind, and product obtained therewith

摘要

Method for manufacturing products by utilizing heterogeneous waste materials, with different melting temperatures, deriving from recycling processes, sorted-out waste collections, solid urban wastes, scraps of industrial processings and the like, by utilizing moulds of traditional type in which the waste materials are in succession shredded in small-sized particles and mixed together with apparatuses of traditional type, thereby forming a first compound constituting a first component of each product, adapted to provide for the not visible inner portion of each product, and a second compound separated from the preceding one constituting a second component of each product, adapted to coat said inner portion and provide for the visible outer portion of each product. Such compounds are heated up separately from each other, up to a pre-determined heating temperature and injected at the same time into the moulds (13) so that the compounds distribute themselves in a different manner into the mould depending on the density and flowability thereof.