Claims
- 1. A method for pressing a paper web, comprising the steps of:
- supporting the web in direct engagement with a water-permeable first wire,
- arranging a load shoe in a loop of the first wire such that a front surface of said load shoe is in direct engagement with the first wire,
- arranging a suction roll in opposed relationship to said load shoe such that the first wire passes between said suction roll and said load shoe,
- pressing said load shoe toward said suction roll by means of pressure provided by a fluid medium,
- lubricating said front surface of said load shoe by directing the fluid medium thereto, and
- applying negative pressure through a suction zone of said suction roll such that the fluid medium is drawn into said suction roll through the first wire and the web and water from the web is drawn into said suction roll.
- 2. The method of claim 1, further comprises the steps of:
- supporting the web in direct engagement with a water-permeable second wire, and
- passing the second wire between the web and said suction roll, whereby the fluid medium is drawn into said suction roll through the first wire, the web and the second wire and water from the web is drawn into said suction roll through the second wire.
- 3. The method of claim 1, further comprising the steps of:
- arranging said suction roll in nip-defining relationship with said load shoe, and
- pressing said load shoe against said suction roll to intensify the dewatering of the web.
- 4. The method of claim 1, further comprising the steps of:
- arranging said load shoe and said suction roll at a location between a forming section and a press section of a paper machine,
- supporting the web in direct engagement with a water-permeable second wire,
- arranging said suction roll in nip-defining relationship with said load shoe, and
- passing the web supported by and between the first and second wires between said load shoe and said suction roll.
- 5. A press for pressing a paper web as the web is supported in direct engagement with a water-permeable first wire, comprising
- a load shoe arranged in a loop of the first wire, said load shoe having a front surface in direct engagement with the first wire,
- a backing element situated in opposed relationship to a front surface of said load shoe such that the first wires passes between said backing element and said load shoe,
- first means for directing a fluid pressure medium to press said load shoe toward said backing element,
- second means for directing said pressure medium onto said front surface of said load shoe to lubricate said front surface of said load shoe, and
- wherein said backing element is a suction roll having a suction zone opening toward said front surface of the load shoe, a suction force being applied through said suction zone in said suction roll to draw said pressure medium and water removed from the web into said suction zone.
- 6. The press of claim 5, wherein said pressure medium is water or an aqueous mixture.
- 7. The press of claim 5, wherein the press is situated between a forming section and a press section of a paper machine, the web being in direct engagement with a second wire such that the web is supported by and between said first and second wires between said load shoe and said suction roll.
Priority Claims (1)
Number |
Date |
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942616 |
Jun 1994 |
FIX |
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Parent Case Info
This is a continuation of U.S. patent application Ser. No. 08/459,111 filed Jun. 2, 1995 now U.S. Pat. No. 5,620,566.
US Referenced Citations (8)
Foreign Referenced Citations (2)
Number |
Date |
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70952 |
Apr 1984 |
FIX |
872632 |
Dec 1987 |
FIX |
Continuations (1)
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Parent |
459111 |
Jun 1995 |
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