Claims
- 1. A method for draining water from a paper web running on a wire, comprising
- engaging the wire and web thereon with a substantially water-receiving fabric-sock mantle loop,
- passing a region of the loop engaged with said wire and web thereon over a stationary suction shoe having a curved surface,
- guiding the mantle loop in a substantially circular path over the suction shoe such that an inner face of the loop region glides against the curved surface of the suction shoe,
- applying a negative pressure through the suction shoe to draw water from the web, and
- driving the loop around the suction shoe to separate said wire and web thereon from the loop after passing over the suction shoe.
- 2. The method of claim 1, further comprising removing water from the loop after said wire and web are separated therefrom.
- 3. The method of claim 1, further comprising lubricating an outer face of the suction shoe on which the loop glides.
- 4. The method of claim 1, further comprising arranging guide rolls to support the loop in its movement around the suction shoe and arranging a drive roll to form a drive nip with one of the guide rolls to thereby drive the loop around the suction shoe.
- 5. The method of claim 4, further comprising the step of arranging the drive roll and the guide roll in nip-defining relationship therewith in a water collecting trough having seal ribs engaging with an outer face of the loop.
- 6. The method of claim 1, further comprising fastening the loop to end flanges of a suction roll and rotating the suction roll to thereby cause the loop to pass over the stationary suction shoe.
- 7. The method of claim 1, wherein the curved surface comprising a curved guide deck having perforations such that the negative pressure is applied through the perforations to draw water from the web.
- 8. Use of a suction roll comprising a substantially circular, water-receiving fabric-sock mantle loop, and a stationary suction shoe arranged in said loop, said suction shoe being connected to a source of negative pressure to thereby provide suction and comprising a permeable, curved guide deck, said loop revolving about said suction shoe such that an inner face of said loop glides against said guide deck, as a forming roll in a web former of a paper machine, a wire suction roll, a pick-up roll, or a felt conditioning roll.
- 9. A method for draining water from a paper web running on a wire, comprising
- engaging the wire and web thereon with a substantially water-receiving fabric-sock mantle loop,
- passing a region of the loop engaged with said wire and web thereon over a stationary suction shoe having a curved surface,
- guiding the mantle loop over the suction shoe such that an inner face of the loop region glides against the curved surface of the suction shoe,
- applying a negative pressure through the suction shoe to draw water form the web,
- arranging guide rolls in a water collecting trough and inside the loop,
- arranging a drive roll in the water collecting trough outside the loop to form a drive nip with one of the guide rolls, and
- sealing the water collecting trough in which the drive roll and the guide roll in nip-defining relationship therewith are situated against an outer face of the loop.
- 10. The method of claim 9, further comprising the step of guiding the mantle loop in a substantially circular path.
Priority Claims (1)
Number |
Date |
Country |
Kind |
933112 |
Jul 1993 |
FIX |
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Parent Case Info
This is a division of U.S. patent application Ser. No. 08/128,470, filed Sep. 28, 1993.
US Referenced Citations (10)
Divisions (1)
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Number |
Date |
Country |
Parent |
128470 |
Sep 1993 |
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