Paper machine headbox

Details Paper machine headbox Paper machine headbox

D - Textiles, Paper

21

F

D21F 1/02 (2006.01)

Patent

CA 2109912

PAPER MACHINE HEADBOX Abstract of the Disclosure A headbox of a machine for producing a fiber web from a pulp suspension which travels in a flow direction through the headbox has a first chamber into which a pulp suspension is introduced, a second chamber provided downstream of the first chamber, and at least two walls provided in a region between the first and second chambers so that the pulp suspension flows between the two walls. Each of the two walls has a non-planar, contoured surface to generate turbulence in the pulp suspension flowing between the two walls. The headbox also includes means for shifting at least one of the two walls with respect to the other wall to control the turbulence generated in the pulp suspension.

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