Patent ID: 6719448
Filing Date: 2004-04-13
Classification: B01F

Abstract:
Material processing apparatus comprising:an elongated barrel having a barrel outlet, and an elongated, flighted axially rotatable screw within the barrel in order to move material toward and through the barrel outlet; and an additive incorporation assembly coupled with said barrel outlet and includingâ€”a flow divider having a plurality of separate outputs and operable to separate said material passing through the barrel outlet into a plurality of separate material streams, each stream passing through a corresponding output; a plurality of individual mixing chambers each including a tubular housing presenting a housing input and a housing output, and an elongated, axially rotatable mixing element within the housing, said mixing chambers being in substantial axial alignment with each other, each of said flow divider outputs operably coupled with an input of one of said mixing chamber housings so that each of said separate material streams is directed to a respective mixing chamber; and a plurality of additive injectors for the addition of respective additives to each of said separate material streams.