B - Operations – Transporting – 05 – B
Patent
B - Operations, Transporting
05
B
299/16, 34/38, 2
B05B 1/00 (2006.01) D21F 5/18 (2006.01) F26B 13/20 (2006.01)
Patent
CA 1317989
ABSTRACT OF THE DISCLOSURE An arrangement of pressure nozzles for the treatment of webs, comprises a nozzle box, which has a carrying face placed facing the web, and two nozzle slots directed towards each other associated with the carrying face, the nozzle slots being placed in the outer part of a space defined by the inner walls and the outer walls equivalent of the nozzle box. The arrangement of nozzles is asymmetric relative the perpendicular centre plane (A-A) of the pressurized carrying face so that the arrangement of nozzles has a first nozzle slot located relative said carrying face in such a way that the gas jet blown out of -the nozzle slot follows the curved carrying face up to the area between the nozzle slots. Th the arrangement of nozzles further includes a second nozzle slot located within the area of the edge of the curved guide face associated therewith or, in the gas flow direction, before said edge, the ratio of the width of said second nozzle slot to the radius of curvature of said guide face being chosen such that, with the flow rates of the second nozzle occurring in practice, the gas flow is separated from the curved guide face of the second nozzle between the first and the second nozzle slot.
578510
Lepisto Matti
Marks & Clerk
Valmet Paper Machinery Inc.
LandOfFree
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