Method and apparatus for removing impurities from paper pulp...

Details Method and apparatus for removing impurities from paper pulp... Method and apparatus for removing impurities from paper pulp...

D - Textiles, Paper

21

B

92/52

D21B 1/34 (2006.01) D21B 1/32 (2006.01)

Patent

CA 2023693

ABSTRACT The invention relates to a method and apparatus for removing impurities from paper pulp in pulpers wherein the pulping space, whereto the paper pulp to be purified is conducted, is provided with a rotor unit or the like and a screenplate in connection therewith. According to the invention, the enclosed pulping space is divided into a primary and a secondary space by means of a partition wall construction. Both the primary and the secondary spaces are provided with separate rotor units and perforated screenplates associated with the rotor units. The paper pulp to be purified is conducted into the primary space and a connection between the primary and secondary spaces is arranged within the partition wall construction.

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