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AssigneeValmet Paper Machinery Inc.
InventorsVesa Koiranen, Vesa Vuorinen, Raimo Virta
Estimating the term…
The invention relates to a method and device for stabilizing a paper web in a group of cylinders in the dryer section of a paper machine. The group of cylinders are arranged in a row of drying cylinders and a corresponding row of leading rolls or equivalent placed as interlocked with the drying cylinders. The group of cylinders is provided with a single-wire draw so that the heated drying cylinders in the group are placed outside the loop of the drying wire and the leading rolls in the group are placed inside the loop of the drying wire. The stabilization device is arranged in the area between adjacent drying cylinders and the leading roll or equivalent placed as interlocked between the adjacent drying cylinders in the group of cylinders. Air is blow from the device and directed in the direction opposite to the running direction of the paper web. A nozzle opening of the stabilization device is shaped so that the air flow follows a substantially smooth face of the stabilization device while, at the same time, ejecting surrounding air along with it. In preferred embodiments, the smooth face is substantially parallel to the drying wire and the group of cylinders is formed as a compact geometry.
A device for stabilizing a paper web in a group of cylinders in a dryer section of a paper machine, said group of cylinders including a row of drying cylinders having at least one pair of adjacent drying cylinders, and a corresponding row of at least one leading roll, each leading roll interposed between said drying cylinders of a pair of adjacent drying cylinders, and a looped drying wire for carrying the web running between said cylinders and rolls with said drying cylinders situated outside said loop and said at least one leading roll situated within said loop, said stabilizing device comprising:
A method for stabilizing a paper web in a group of cylinders in a dryer section of a paper machine, comprising the steps of:
A device for stabilizing a paper web in a group of cylinders in a dryer section of a paper machine, said group of cylinders including a row of drying cylinders having at least one pair of adjacent drying cylinders, and a corresponding row of at least one leading roll, each leading roll interposed between said drying cylinders of a pair of adjacent drying cylinders, and a looped drying wire for carrying the web running between said cylinders and rolls with said drying cylinders situated outside said loop and said at least one leading roll situated within said loop, said stabilizing device comprising:
A device for stabilizing a paper web in a group of cylinders in a dryer section of a paper machine, said group of cylinders including a row of drying cylinders having at least one pair of adjacent drying cylinders, and a corresponding row of at least one leading roll, each leading roll interposed between said drying cylinders of a pair of adjacent drying cylinders, and a looped drying wire for carrying the web running between said cylinders and rolls with said drying cylinders situated outside said loop and said at least one leading roll situated within said loop, said stabilizing device comprising:
A device for stabilizing a paper web in a group of cylinders in a dryer section of a paper machine, said group of cylinders including a row of drying cylinders having at least one pair of adjacent drying cylinders, and a corresponding row of at least one leading roll, each leading roll interposed between said drying cylinders of a pair of adjacent drying cylinders, and a looped drying wire for carrying the web running between said cylinders and rolls with said drying cylinders situated outside said loop and said at least one leading roll situated within said loop, said stabilizing device comprising:
Dependencies are inferred from the claim text.