Method and apparatus for controlling the consistency of a...

Details Method and apparatus for controlling the consistency of a... Method and apparatus for controlling the consistency of a...

B - Operations, Transporting

30

B

100/8

B30B 9/12 (2006.01) D21C 9/18 (2006.01)

Patent

CA 1235602

ABSTRACT OF THE DISCLOSURE A method and apparatus for treating a pulp suspension in the manufacture of paper employing a controlled drainage thickener and a screw type pulp press. Pulp is fed into the thickener where the feed screw contained therein delivers it to a vertical discharge column. A screw type conveyor delivers the pulp suspension from the vertical discharge column into a vertical inlet column associated with a screw type pulp press. A sensing means is provided to measure the consistency of the pulp entering the press, and a sensing means provides a control signal which is arranged to modulate operation of a discharge valve on the thickener to keep the consistency of the pulp entering the screw type pulp press within a predetermined range.

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