CA2040509A1 - Apparatus for reducing the water content of a formed web - Google Patents

Apparatus for reducing the water content of a formed web

Info

Publication number
CA2040509A1
CA2040509A1 CA 2040509 CA2040509A CA2040509A1 CA 2040509 A1 CA2040509 A1 CA 2040509A1 CA 2040509 CA2040509 CA 2040509 CA 2040509 A CA2040509 A CA 2040509A CA 2040509 A1 CA2040509 A1 CA 2040509A1
Authority
CA
Canada
Prior art keywords
web
press
water
pressed
dryer
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.)
Granted
Application number
CA 2040509
Other languages
French (fr)
Other versions
CA2040509C (en
Inventor
Richard J. Santkuyl
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.)
Valmet Technologies Oy
Mitsubishi Heavy Industries Ltd
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of CA2040509A1 publication Critical patent/CA2040509A1/en
Application granted granted Critical
Publication of CA2040509C publication Critical patent/CA2040509C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Landscapes

  • Paper (AREA)
  • Drying Of Solid Materials (AREA)

Abstract

An apparatus and method is disclosed for reducing the water content of a formed web. The apparatus includes a press for pressing the formed web such that a first portion of water is removed from the formed web during passage of the formed web through the press. A dryer is disposed downstream relative to the press for drying the pressed web such that a second portion of water is removed from the pressed web during passage of the pressed web through the dryer. A further press is disposed downstream relative to the dryer for further pressing the dried web such that a third portion of water is removed from the dried web. The further press includes a heated backing roll and an elongate press member which cooperates with the backing roll for defining therebetween an elongate pressing section for the passage therethrough of the dried web. The dried web is subjected to increased pressure and temperature for an extended period during passage through the pressing section so that water vapor is generated within the pressing section for urging the third portion of water in the liquid phase away from the web, thereby inhibiting delamination of the further pressed web.
CA 2040509 1990-04-17 1991-04-15 Apparatus for reducing the water content of a formed web Expired - Fee Related CA2040509C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US51033590A 1990-04-17 1990-04-17
US07/510,335 1990-04-17

Publications (2)

Publication Number Publication Date
CA2040509A1 true CA2040509A1 (en) 1991-10-18
CA2040509C CA2040509C (en) 1997-06-17

Family

ID=24030328

Family Applications (1)

Application Number Title Priority Date Filing Date
CA 2040509 Expired - Fee Related CA2040509C (en) 1990-04-17 1991-04-15 Apparatus for reducing the water content of a formed web

Country Status (2)

Country Link
JP (1) JPH07100914B2 (en)
CA (1) CA2040509C (en)

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0289477A3 (en) * 1987-04-28 1989-03-08 Valmet Paper Machinery Inc. Method for hot-pressing of a paper web and a drying device for the implementation of the method

Also Published As

Publication number Publication date
JPH04222292A (en) 1992-08-12
CA2040509C (en) 1997-06-17
JPH07100914B2 (en) 1995-11-01

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Legal Events

Date Code Title Description
EEER Examination request
MKLA Lapsed