Wire section for a paper machine

Details Wire section for a paper machine Wire section for a paper machine

D - Textiles, Paper

21

F

92/14.1

D21F 1/00 (2006.01) D21F 1/48 (2006.01) D21F 3/00 (2006.01) D21F 9/02 (2006.01)

Patent

CA 1170881

WIRE SECTION IN A PAPER MACHINE ABSTRACT OF THE DISCLOSURE A wire section in a paper machine includes an upper wire unit which is compact and easily exchangeable, if required, the construction of the wire section being such that old, single- wire planar wire machines can be converted to twin-wire machines. The paper machine wire section includes a lower wire having an initial single-wire run in which the watering of a web takes place, and at least one upper wire unit following the initial single-wire run which defines a twin-wire dewatering zone with an adjacent run of the lower wire and in which dewatering of the web takes place through both the lower and upper wires. The twin- wire dewatering zone is further defined by a curved, solid-cover forming shoe situated within the upper wire loop and wherein the forming shoe is preceded by a curved dewatering zone where de- watering is mainly through the upper wire. The upper wire unit further comprises apparatus situated mainly above the forming shoe for conducting water dewatered from the web through the upper wire to at least one side of the paper machine substantially with- out the use of suction.

395626

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