Pressure screen to remove impurities from a paper fiber...

D - Textiles – Paper – 21 – D

Patent

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D21D 5/16 (2006.01) D21D 5/02 (2006.01)

Patent

CA 2379425

Pressure screen to remove impurities from a paper fiber suspension that contains impurities. Pressure screen includes a housing having at least one inflow fitting, at least one accept outflow fitting and at least one reject outflow, and at least first and second cylindrical wires located within housing. The at least first and second wires are arranged to be consecutively flowed through by paper fiber suspension, which is introduced into housing through inflow fitting. A first accept, including a portion of paper fiber suspension that passes through first wire, flows toward second wire, and a second accept, including a portion of paper fiber suspension that passes through second wire, flows out of housing through accept outflow. The at least first and second wires are arranged within housing so that paper fiber suspension is fed radially through the at least first and second wires from an inside to an outside.

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