Patent ID: 6634583
Filing Date: 2003-10-21
Classification: B01F,D21B,D21D

Abstract:
A device for dispersing a highly consistent paper stock, said device comprising:an inlet for a wet fibrous paper stock; a stationary stator; at least one rotatable rotor; wherein said stator and said at least one rotor are arranged to form: a pulverizing zone, including a pulverizing element located near said inlet, said pulverizing element comprising at least one of scrapers and knives for pulverizing the fibrous composition into a fine, friable composition; a dispersing zone, including at least one row of teeth on said stator and at least one row of teeth on said at least one rotor which can be moved relative to said at least one row of teeth of said stator, wherein said at least one row of teeth of said stator and said at least one row of teeth of said at least one rotor forms a gap; and a vapor chamber, comprising an annular chamber radially oriented between said pulverizing zone and said dispersing zone, wherein said vapor chamber is for calefying the fine, friable composition formed by the pulverizing element; wherein a heating medium is introduced directly into said vapor chamber to raise the temperature of the friable composition.