DE3066914D1 - An apparatus for reducing the amount of water in a moist and watery material web - Google Patents

An apparatus for reducing the amount of water in a moist and watery material web

Info

Publication number
DE3066914D1
DE3066914D1 DE8080850049T DE3066914T DE3066914D1 DE 3066914 D1 DE3066914 D1 DE 3066914D1 DE 8080850049 T DE8080850049 T DE 8080850049T DE 3066914 T DE3066914 T DE 3066914T DE 3066914 D1 DE3066914 D1 DE 3066914D1
Authority
DE
Germany
Prior art keywords
roller
material web
water
press
satelite
Prior art date
Legal status (The legal status 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 status listed.)
Expired
Application number
DE8080850049T
Other languages
German (de)
Inventor
Lars August Johannes Larsson
Sven-Bertil Nilsson
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nordiskafilt AB
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 DE3066914D1 publication Critical patent/DE3066914D1/en
Expired legal-status Critical Current

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)
  • 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)
  • Treatment Of Fiber Materials (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).
DE8080850049T 1979-05-07 1980-04-10 An apparatus for reducing the amount of water in a moist and watery material web Expired DE3066914D1 (en)

Applications Claiming Priority (1)

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

Publications (1)

Publication Number Publication Date
DE3066914D1 true DE3066914D1 (en) 1984-04-19

Family

ID=20337979

Family Applications (1)

Application Number Title Priority Date Filing Date
DE8080850049T Expired DE3066914D1 (en) 1979-05-07 1980-04-10 An apparatus for reducing the amount of water in a moist and watery material web

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) ES491193A0 (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
FI102305B (en) 1997-04-02 1998-11-13 Valmet Corp Calendaring process and calendar for application of the process

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
MX153039A (en) 1986-07-22
AU532802B2 (en) 1983-10-13
FI801233A (en) 1980-11-08
ATE6680T1 (en) 1984-03-15
SE7903953L (en) 1980-11-08
ES8101162A1 (en) 1980-12-01
EP0018954A1 (en) 1980-11-12
EP0018954B1 (en) 1984-03-14
BR8002492A (en) 1980-12-09
JPS569496A (en) 1981-01-30
ES491193A0 (en) 1980-12-01
CA1125559A (en) 1982-06-15
AU5790480A (en) 1980-11-13

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Legal Events

Date Code Title Description
8339 Ceased/non-payment of the annual fee