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US 5,466,343 AGranted
Suction element for a paper machine
AssigneeValmet Paper Machinery Inc.
InventorMatti Kankaanpaa
Life of this patent
Estimating the term…
Abstract
A suction roll for a paper machine in which a stationary suction shoe is arranged inside a revolving mantle loop and is connected to a source of negative pressure. The mantle loop is a substantially water-receiving and permeable fabric-sock loop that receives water and is, in a preferred embodiment, supported by means of guide members arranged inside the loop. The suction shoe is provided with a permeable guide deck against which the inner face of the fabric-sock loop glides.
Claims25
A suction roll for a paper machine, 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.
A suction element for a paper machine, comprising
- a substantially water-receiving fabric-sock mantle loop,
- 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,
- axle journals arranged at ends of said suction element to support said suction element,
- support frames for supporting said axle journals,
- end flanges connected to said axle journals, each edges of said loop being fixed to a respective one of said end flanges,
- drive means coupled to at least one of said axle journals for revolving said loop about said suction shoe, and
- connecting means for connecting an interior space of said suction shoe with the source of negative pressure, said connecting means being arranged to extend through at least one of said axle journals.
4 more elements
A suction element for a paper machine, comprising
- a substantially water-receiving fabric-sock mantle loop.
- 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,
- drive means for driving said loop around said guide deck, said drive means comprising a driving roll arranged outside said loop and a guide roll arranged inside said loop opposite said driving roll to form a loaded drive nip between said driving roll and said guide roll, and
- a water collecting trough having seal ribs engaging with an outer face of said loop, said driving roll and said guide roll being arranged in said
1 more element
Dependencies are inferred from the claim text.