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NZ506876A - Pulp filter or washer with sealing by introducing pressurised fluid into sealed area at end(s) of filter or washer - Google Patents

Pulp filter or washer with sealing by introducing pressurised fluid into sealed area at end(s) of filter or washer

Info

Publication number
NZ506876A
NZ506876A NZ506876A NZ50687699A NZ506876A NZ 506876 A NZ506876 A NZ 506876A NZ 506876 A NZ506876 A NZ 506876A NZ 50687699 A NZ50687699 A NZ 50687699A NZ 506876 A NZ506876 A NZ 506876A
Authority
NZ
New Zealand
Prior art keywords
sealing
washer
filter
pressurised fluid
sealed area
Prior art date
Application number
NZ506876A
Inventor
Jukka Heino
Harri Purontaus
Original Assignee
Andritz Oy
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
Priority claimed from FI980523A external-priority patent/FI980523A7/en
Application filed by Andritz Oy filed Critical Andritz Oy
Publication of NZ506876A publication Critical patent/NZ506876A/en

Links

Classifications

    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
    • D21C9/00—After-treatment of cellulose pulp, e.g. of wood pulp, or cotton linters ; Treatment of dilute or dewatered pulp or process improvement taking place after obtaining the raw cellulosic material and not provided for elsewhere
    • D21C9/02—Washing ; Displacing cooking or pulp-treating liquors contained in the pulp by fluids, e.g. wash water or other pulp-treating agents
    • D21C9/06—Washing ; Displacing cooking or pulp-treating liquors contained in the pulp by fluids, e.g. wash water or other pulp-treating agents in filters ; Washing of concentrated pulp, e.g. pulp mats, on filtering surfaces
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D33/00—Filters with filtering elements which move during the filtering operation
    • B01D33/06—Filters with filtering elements which move during the filtering operation with rotary cylindrical filtering surfaces, e.g. hollow drums
    • B01D33/067—Construction of the filtering drums, e.g. mounting or sealing arrangements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J15/00—Sealings
    • F16J15/16—Sealings between relatively-moving surfaces
    • F16J15/32—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings
    • F16J15/3204—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings with at least one lip
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J15/00—Sealings
    • F16J15/16—Sealings between relatively-moving surfaces
    • F16J15/32—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings
    • F16J15/3204—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings with at least one lip
    • F16J15/3232—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings with at least one lip having two or more lips
    • F16J15/3236—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings with at least one lip having two or more lips with at least one lip for each surface, e.g. U-cup packings

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Paper (AREA)
  • Sealing With Elastic Sealing Lips (AREA)

Abstract

The present invention relates to a sealing for use in the sealing of a rotating member the sealing being particularly well suitable for sealing of the large-diameter parts of drums used in large wash and filter cylinders, and shafts, of the wood processing industry. The washer in question comprises a stationary outer shell (10), a wash liquid feed chamber (12) disposed inside the shell, which are defined by a perforated plate (16), and a rotating drum disposed inside said surface (16), the drum having a liquid permeable perforated surface (18) whereby the so-called pulp space (20) is defined between said perforated surface (16, 18), the washer being provided at both of its ends with sealing in order to seal the rotating drum mentioned relative to the stationary outer shell, the sealing being formed by a sealing box (26) and a sealing member disposed therein, and it is a characteristic feature of the washer mentioned that the sealing box (26) has been provided with means (40) for introducing pressure medium, preferably liquid, into the sealing box (26).
NZ506876A 1998-03-09 1999-03-09 Pulp filter or washer with sealing by introducing pressurised fluid into sealed area at end(s) of filter or washer NZ506876A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FI980523A FI980523A7 (en) 1998-03-09 1998-03-09 Sealant
FI990182A FI990182A7 (en) 1998-03-09 1999-02-01 Pulp filter or scrubber and the seal used in it
PCT/FI1999/000183 WO1999046025A1 (en) 1998-03-09 1999-03-09 Pulp filter or washer and sealing for use therein

Publications (1)

Publication Number Publication Date
NZ506876A true NZ506876A (en) 2003-01-31

Family

ID=26160558

Family Applications (1)

Application Number Title Priority Date Filing Date
NZ506876A NZ506876A (en) 1998-03-09 1999-03-09 Pulp filter or washer with sealing by introducing pressurised fluid into sealed area at end(s) of filter or washer

Country Status (9)

Country Link
EP (1) EP1069934A1 (en)
JP (1) JP2002506143A (en)
CN (1) CN1302219A (en)
CA (1) CA2323049A1 (en)
FI (1) FI990182A7 (en)
NO (1) NO20004529L (en)
NZ (1) NZ506876A (en)
PL (1) PL342808A1 (en)
WO (1) WO1999046025A1 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI20001603A7 (en) * 2000-07-04 2002-01-05 Andritz Oy Seal arrangement
SE517932C2 (en) * 2001-09-19 2002-08-06 Kvaerner Pulping Tech Sealing arrangement for drum filters or filter presses as well as cuff and holding elements for one
SE524513C2 (en) 2002-12-20 2004-08-17 Metso Paper Inc Sealing device for sealing between a shaft and a bearing housing as well as a device for dewatering and / or washing of material suspensions
DE102005056586A1 (en) 2005-10-14 2007-04-19 Hans Huber Ag Maschinen- Und Anlagenbau filtering device
DE102013000514B4 (en) * 2013-01-15 2015-09-24 Carl Freudenberg Kg Sealing arrangement and its use
FI127009B (en) * 2014-03-27 2017-09-15 Andritz Oy Tilt filter and procedure in connection with the tint filter

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5004540A (en) * 1989-12-01 1991-04-02 Ketema Process Equipment Division Invertible filter-type centrifuge with improved bearing and seal assembly
US5397471A (en) * 1993-08-30 1995-03-14 Tema Systems, Inc. Self-cleaning scroll and screen centrifuge
SE9602726D0 (en) * 1996-07-10 1996-07-10 Frykhult R Ingf Ab Device for rotating filters

Also Published As

Publication number Publication date
NO20004529L (en) 2000-10-20
WO1999046025A1 (en) 1999-09-16
NO20004529D0 (en) 2000-09-11
FI990182A0 (en) 1999-02-01
FI990182A7 (en) 1999-09-10
CN1302219A (en) 2001-07-04
CA2323049A1 (en) 1999-09-16
PL342808A1 (en) 2001-07-02
JP2002506143A (en) 2002-02-26
EP1069934A1 (en) 2001-01-24

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Legal Events

Date Code Title Description
PSEA Patent sealed