SE9303381D0 - dewatering - Google Patents

dewatering

Info

Publication number
SE9303381D0
SE9303381D0 SE9303381A SE9303381A SE9303381D0 SE 9303381 D0 SE9303381 D0 SE 9303381D0 SE 9303381 A SE9303381 A SE 9303381A SE 9303381 A SE9303381 A SE 9303381A SE 9303381 D0 SE9303381 D0 SE 9303381D0
Authority
SE
Sweden
Prior art keywords
rolls
vat
roll
seals
steel strip
Prior art date
Application number
SE9303381A
Other languages
Swedish (sv)
Other versions
SE9303381L (en
SE503010C2 (en
Original Assignee
Sunds Defibrator
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 Sunds Defibrator filed Critical Sunds Defibrator
Priority to SE9303381A priority Critical patent/SE503010C2/en
Publication of SE9303381D0 publication Critical patent/SE9303381D0/en
Priority to AU79514/94A priority patent/AU7951494A/en
Priority to PCT/SE1994/000877 priority patent/WO1995010658A1/en
Publication of SE9303381L publication Critical patent/SE9303381L/en
Publication of SE503010C2 publication Critical patent/SE503010C2/en
Priority to FI961615A priority patent/FI961615A0/en

Links

Classifications

    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
    • D21F1/00—Wet end of machines for making continuous webs of paper
    • D21F1/66—Pulp catching, de-watering, or recovering; Re-use of pulp-water
    • D21F1/74—Pulp catching, de-watering, or recovering; Re-use of pulp-water using cylinders
    • D21F1/76—Pulp catching, de-watering, or recovering; Re-use of pulp-water using cylinders with suction
    • 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
    • B01D33/073—Filters with filtering elements which move during the filtering operation with rotary cylindrical filtering surfaces, e.g. hollow drums arranged for inward flow filtration
    • 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
    • B01D33/35—Filters with filtering elements which move during the filtering operation with multiple filtering elements characterised by their mutual disposition
    • B01D33/37—Filters with filtering elements which move during the filtering operation with multiple filtering elements characterised by their mutual disposition in parallel connection
    • 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
    • B01D33/70—Filters with filtering elements which move during the filtering operation having feed or discharge devices
    • B01D33/72—Filters with filtering elements which move during the filtering operation having feed or discharge devices for feeding
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B9/00—Presses specially adapted for particular purposes
    • B30B9/02—Presses specially adapted for particular purposes for squeezing-out liquid from liquid-containing material, e.g. juice from fruits, oil from oil-containing material
    • B30B9/20—Presses specially adapted for particular purposes for squeezing-out liquid from liquid-containing material, e.g. juice from fruits, oil from oil-containing material using rotary pressing members, other than worms or screws, e.g. rollers, rings, discs
    • 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
    • D21C9/18—De-watering; Elimination of cooking or pulp-treating liquors from the pulp
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2201/00—Details relating to filtering apparatus
    • B01D2201/34—Seals or gaskets for filtering elements

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Drying Of Solid Materials (AREA)
  • Paper (AREA)
  • Treatment Of Fiber Materials (AREA)

Abstract

A device for dewatering material suspensions, possibly in connection with liquid treatment. The device comprises two cylindric rotary liquid-permeable press rolls (10), the shell surface of which is covered with wire cloth (11). The press rolls are located in a vat (12) partially enclosing the rolls, which between themselves form a nip (15). Seals (16, 17) are provided in the vat (12), so that an airtight space (13) is formed between the rolls (10) and vat (12). The seals (16) along the shell surfaces of the rolls (10) consist of a flexible steel strip (21) attached on the upper edge of the vat (12) and extending inward to the shell surface of each roll (10). The steel strip (21) is bent in the rotation direction of the roll, so that its leading end abuts the roll.
SE9303381A 1993-10-14 1993-10-14 Seal for dewatering device with press rolls SE503010C2 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
SE9303381A SE503010C2 (en) 1993-10-14 1993-10-14 Seal for dewatering device with press rolls
AU79514/94A AU7951494A (en) 1993-10-14 1994-09-23 Sealing strip for dewatering device with press rolls
PCT/SE1994/000877 WO1995010658A1 (en) 1993-10-14 1994-09-23 Sealing strip for dewatering device with press rolls
FI961615A FI961615A0 (en) 1993-10-14 1996-04-12 Sealing tape for dewatering mechanism with press rollers

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE9303381A SE503010C2 (en) 1993-10-14 1993-10-14 Seal for dewatering device with press rolls

Publications (3)

Publication Number Publication Date
SE9303381D0 true SE9303381D0 (en) 1993-10-14
SE9303381L SE9303381L (en) 1995-04-15
SE503010C2 SE503010C2 (en) 1996-03-11

Family

ID=20391427

Family Applications (1)

Application Number Title Priority Date Filing Date
SE9303381A SE503010C2 (en) 1993-10-14 1993-10-14 Seal for dewatering device with press rolls

Country Status (4)

Country Link
AU (1) AU7951494A (en)
FI (1) FI961615A0 (en)
SE (1) SE503010C2 (en)
WO (1) WO1995010658A1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE509519C2 (en) * 1997-06-09 1999-02-08 Sunds Defibrator Ind Ab Seal in a roller press
SE9902308L (en) * 1999-06-18 2000-05-29 Kvaerner Pulping Tech Sealing means in a device for dewatering pulp
SE0102811L (en) * 2001-08-23 2003-04-24 Metso Paper Inc Seal on press rolls

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3772144A (en) * 1971-04-14 1973-11-13 Improved Machinery Inc Apparatus and method for thickening and washing suspensions containing fibrous material
SE380300C (en) * 1974-03-04 1984-10-18 Sunds Ab DEVICE FOR LIQUID TREATMENT OF A FIBER SUSPENSION

Also Published As

Publication number Publication date
WO1995010658A1 (en) 1995-04-20
AU7951494A (en) 1995-05-04
FI961615A (en) 1996-04-12
FI961615A0 (en) 1996-04-12
SE9303381L (en) 1995-04-15
SE503010C2 (en) 1996-03-11

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