Process and device for the dispersion of a fibrous paper material

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, and
• said disperser zone being closed off radially outside by a throttle, which renders a valve opening area adjustable.

A device for dispersing a highly consistent fibrous paper stock, said device being contained within a single housing unit and comprising:

• an inlet and outlet for a wet fibrous paper stock;
• a stationary stator;
• at least one rotatable rotor,
• wherein said at least one rotatable rotor is 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, wherein within the pulverizing zone, the fibrous composition is pulverized into a fine friable composition;
• a vapor chamber, comprising an annular chamber radially oriented between the pulverizing zone and a dispersing zone, wherein the fine friable composition is calified by mixing and raising the temperature of the composition via introducing at least one of a gaseous and vaporous heating medium into said vapor chamber,
• wherein the heating medium and the fine friable composition are separately introduced into the vapor chamber, and
• wherein the heating medium is introduced directly into the vapor chamber, after the pulverizing zone, to raise the temperature of the friable composition;
• and
• 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,
• wherein the heated and calified fine friable composition is then dispersed into said outlet.

A device for dispersing a highly consistent fibrous paper stock, said device being contained within a single housing unit and comprising:

• an inlet and outlet for a wet fibrous paper stock;
• a stationary stator;
• at least one rotatable rotor,
• wherein said at least one rotatable rotor is 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, wherein within the pulverizing zone, the fibrous composition is pulverized into a fine friable composition;
• a vapor chamber, comprising an annular chamber radially oriented between the pulverizing zone and a dispersing zone, wherein the fine friable composition is calified by mixing and raising the temperature of the composition via introducing at least one of a gaseous and vaporous heating medium into said vapor chamber,
• wherein the heating medium and the fine friable composition are separately introduced into the vapor chamber, and
• wherein the heating medium is introduced directly into the vapor chamber, after the pulverizing zone, to raise the temperature of the friable composition;
• and
• 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,
• wherein the heated and calified fine friable composition is then dispersed into said outlet, and
• the disperser zone being closed off radially outside by a throttle, which renders a valve opening area adjustable.

A disperser contained within a single housing unit for dispersing a highly consistent fibrous paper stock, said disperser comprising:

• an inlet and outlet for a wet fibrous paper stock;
• a stationary stator;
• at least one rotatable rotor;
• wherein said stator and said at least one rotatable 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 vapor chamber, comprising an annular chamber radially oriented between said pulverizing zone and a dispersing zone, wherein a heating medium is introduced directly into said vapor chamber to raise the temperature of the fine friable composition so that the composition is calified;
• and
• 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, wherein the heated and calified composition is dispersed into said outlet of said disperser.

A disperser, contained within a single housing unit, for dispersing a highly consistent fibrous paper stock, comprising:

• an inlet for a wet fibrous paper stock;
• a stator surrounding the inlet, the stator including at least one row of teeth;
• a rotor having at least one row of teeth which cooperates with the at least one row of teeth of said stator, said rotor including a pulverizing element adjacent to said inlet, said pulverizing element comprising at least one of scrapers and knives, creating a pulverizing zone, for pulverizing the fibrous material into a fine friable composition;
• a vapor chamber formed as an annular chamber between said rotor and said stator and radially around said pulverizing zone for calefying the fine, friable composition formed by said pulverizing element, wherein a heating medium is introduced directly into the vapor chamber to raise the temperature of the friable composition;
• and
• a dispersing zone.