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ATE6680T1 - APPARATUS FOR REDUCING THE QUANTITY OF WATER IN A WET AND WATERY STRIP MATERIAL. - Google Patents

APPARATUS FOR REDUCING THE QUANTITY OF WATER IN A WET AND WATERY STRIP MATERIAL.

Info

Publication number
ATE6680T1
ATE6680T1 AT80850049T AT80850049T ATE6680T1 AT E6680 T1 ATE6680 T1 AT E6680T1 AT 80850049 T AT80850049 T AT 80850049T AT 80850049 T AT80850049 T AT 80850049T AT E6680 T1 ATE6680 T1 AT E6680T1
Authority
AT
Austria
Prior art keywords
roller
press
water
satelite
material web
Prior art date
Application number
AT80850049T
Other languages
German (de)
Inventor
Lars August Johannes Larsson
Sven-Bertil Nilsson
Original Assignee
Nordiskafilt Ab
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Nordiskafilt Ab filed Critical Nordiskafilt Ab
Application granted granted Critical
Publication of ATE6680T1 publication Critical patent/ATE6680T1/en

Links

Classifications

    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
    • D21F3/00—Press section of machines for making continuous webs of paper
    • D21F3/02—Wet presses
    • D21F3/04—Arrangements thereof
    • D21F3/045—Arrangements thereof including at least one extended press nip
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21G—CALENDERS; ACCESSORIES FOR PAPER-MAKING MACHINES
    • D21G1/00—Calenders; Smoothing apparatus

Landscapes

  • Paper (AREA)
  • Braking Arrangements (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Disintegrating Or Milling (AREA)
  • Glass Compositions (AREA)
  • Transition And Organic Metals Composition Catalysts For Addition Polymerization (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
  • Water Treatment By Sorption (AREA)

Abstract

The present invention relates to an apparatus for reducing the amount of water in a moist and watery material web (1), primarily a fiber web in a machine for the manufacture of paper, by means of one or more press nips (4, 6, 7), each being provided between a press roller (3, 8, 9) and a roller-formed body (5), which at least to a certain part being deformable for controlling of the length of said press nips (4, 6, 7). One object of the present invention is to reduce the inconveniences inherent in prior art methods and arrangements for realizing an extended press nip and, in general terms, to improve the pressing-out of moisture and water from a material web without realizing any deterioration of the quality of the material web. This object is achieved according to the present invention in that said roller-formed body being a central roller (5) in cooperation with at least three satelite rollers (3, 8, 9) positioned around the central roller (5) for positioning said roller (5) in a balanced condition, in that said press nip (4, 6, 7) being provided between at least one of said satelite rollers (3, 8, 9) and said roller-formed central roller (5) and in that the pressure between said satelite roller (3, 8, 9) and said roller-formed central roller (5) being controllable almost independently of the length of the press nip (4, 6, 7), provided by the deformaton, by a change of the pressure inside said roller-formed body (5).
AT80850049T 1979-05-07 1980-04-10 APPARATUS FOR REDUCING THE QUANTITY OF WATER IN A WET AND WATERY STRIP MATERIAL. ATE6680T1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE7903953A SE7903953L (en) 1979-05-07 1979-05-07 DEVICE FOR REDUCING THE WATER QUANTITY IN A MOISTURIZED AND Aqueous MATERIAL
EP80850049A EP0018954B1 (en) 1979-05-07 1980-04-10 An apparatus for reducing the amount of water in a moist and watery material web

Publications (1)

Publication Number Publication Date
ATE6680T1 true ATE6680T1 (en) 1984-03-15

Family

ID=20337979

Family Applications (1)

Application Number Title Priority Date Filing Date
AT80850049T ATE6680T1 (en) 1979-05-07 1980-04-10 APPARATUS FOR REDUCING THE QUANTITY OF WATER IN A WET AND WATERY STRIP MATERIAL.

Country Status (11)

Country Link
EP (1) EP0018954B1 (en)
JP (1) JPS569496A (en)
AT (1) ATE6680T1 (en)
AU (1) AU532802B2 (en)
BR (1) BR8002492A (en)
CA (1) CA1125559A (en)
DE (1) DE3066914D1 (en)
ES (1) ES8101162A1 (en)
FI (1) FI801233A (en)
MX (1) MX153039A (en)
SE (1) SE7903953L (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2557895B1 (en) * 1984-01-06 1988-07-15 Ahlstroem Oy PRESS FOR THE EXTRACTION OF WATER FROM BAND MATERIALS, PARTICULARLY FOR PAPER MACHINES.
DE3808293C2 (en) * 1988-03-12 1994-08-18 Voith Gmbh J M Long nip press roll
FI102305B1 (en) 1997-04-02 1998-11-13 Valmet Corp Calendering method and calender applying the method

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1563130A (en) * 1924-08-22 1925-11-24 Milton T Weston Pneumatic press roll for paper machines
BE525016A (en) * 1952-12-13 1900-01-01
US3293121A (en) * 1963-10-09 1966-12-20 Black Clawson Co Pneumatically pressurized paper wet press assembly
US3808096A (en) * 1972-02-16 1974-04-30 Beloit Corp Figure eight cylinder press for defining an extended press nip

Also Published As

Publication number Publication date
AU532802B2 (en) 1983-10-13
JPS569496A (en) 1981-01-30
EP0018954B1 (en) 1984-03-14
SE7903953L (en) 1980-11-08
BR8002492A (en) 1980-12-09
EP0018954A1 (en) 1980-11-12
DE3066914D1 (en) 1984-04-19
AU5790480A (en) 1980-11-13
ES491193A0 (en) 1980-12-01
CA1125559A (en) 1982-06-15
ES8101162A1 (en) 1980-12-01
MX153039A (en) 1986-07-22
FI801233A (en) 1980-11-08

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