Method and apparatus for making pulp

D - Textiles – Paper – 21 – B

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D21B 1/00 (2006.01) B02C 7/12 (2006.01) D21D 1/20 (2006.01) D21D 1/30 (2006.01)

Patent

CA 1250171

Abstract of the Disclosure Method and apparatus for making pulp of grinding goods, such as fibre material, in the grinding zone of a grinding apparatus by pressing it against a grinding sur- face provided with a pattern extending in the direction of movement of the grinding goods over the grinding sur- face for desintegration of the grinding goods. Steam ge- nerated during the grinding work causes a pressure rise along the grinding surface. The region for the maximum pressure in the grinding zone is established with the aid of measurements of the pressure course in the grinding zone and the pattern is formed in a predetermined re- gion around this pressure centre so that braking of the grinding goods will be obtained.

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