Patent ID: 6475337
Filing Date: 2002-11-05
Classification: B01F,B03D,D21B,D21F,Y02W

Abstract:
Process for aerating pulp suspensions in a de-inking apparatus to produce accept pulp suspension, the apparatus having a first primary cell and at least one subsequent primary cell, each of the primary cells having a separate liquid circulating system including an injector, the process comprising the steps of:a) receiving a flow of pulp suspension at a feed rate in the first primary cell; b) sucking in air with the injector of the first primary cell; c) mixing the air and pulp suspension with the injector of the first primary cell; d) feeding accept pulp suspension to a subsequent primary cell: e) sucking in air with the injector of the subsequent primary cell; f) mixing the air and pulp suspension with the injector of the subsequent primary cell; g) repeating steps d)-f) for each remaining subsequent primary cell.