Verfahren und Vorrichtung zum Aufbereiten von Polyurethanschaumstoff-Abfällen, insbesondere Weichschaumstoff-Abfällen, zur Wiederverwertung als Zuschlagstoffe bei der Polyurethanherstellung

摘要

Polyurethane foam scrap can be reduced to the desired particle size, in a way which produces little dust and saves energy for recycling as an additive in polyurethane production in a fine reduction apparatus (11) arranged downstream of a coarse reduction apparatus (12). This is performed by the fine reduction taking place preferably by repeated pressing through a die (19) or through a plurality of dies (19, 21) of a mixture of the coarse-reduced material and one of the reaction components.