Title:
FINELY CRUSHING METHOD AND APPARATUS OF FIBROUS MATERIAL WITHIN DISC REFINER
Document Type and Number:
Japanese Patent JPS5450601
Kind Code:
A
Abstract:
Method and apparatus for refining fiberous material in a disc refiner for withdrawing steam developed during refining of such fiberous material. The disc refinger comprises a pair of refining discs each of which includes a inner refining surface. The refining discs are mounted for rotation relative to one another in a housing with the refining surfaces opposing one another during the relative rotation and defining a refining space therebetween. Each of the refining surfaces of the refining discs is provided with a passageway for withdrawing steam developed in the refining space. The passageways extend from the respective refining surfaces in a direction away from the refining space and radially inward relative to the direction that the fiberous material moves through the refining space.
Inventors:
GUSUTAFU RUNE HERERUKUBUISUTO
Application Number:
JP9501478A
Publication Date:
April 20, 1979
Filing Date:
August 03, 1978
Export Citation:
Assignee:
SCA DEVELOPMENT AB
International Classes:
D21D1/30; D21B1/14; (IPC1-7): D21B1/14; D21D1/30