ES2020636A6 - Pulp washing apparatus and process - Google Patents

Pulp washing apparatus and process

Info

Publication number
ES2020636A6
ES2020636A6 ES9000536A ES9000536A ES2020636A6 ES 2020636 A6 ES2020636 A6 ES 2020636A6 ES 9000536 A ES9000536 A ES 9000536A ES 9000536 A ES9000536 A ES 9000536A ES 2020636 A6 ES2020636 A6 ES 2020636A6
Authority
ES
Spain
Prior art keywords
drum
mat
zone
washing
hood
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 - Lifetime
Application number
ES9000536A
Other languages
Spanish (es)
Inventor
Stephen Gareth Munro
Frank Joseph Paskoswski
George Leroy Shank
Fletcher Bedky Smith
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.)
Beloit Corp
Original Assignee
Beloit Corp
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 Beloit Corp filed Critical Beloit Corp
Publication of ES2020636A6 publication Critical patent/ES2020636A6/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21D—TREATMENT OF THE MATERIALS BEFORE PASSING TO THE PAPER-MAKING MACHINE
    • D21D1/00—Methods of beating or refining; Beaters of the Hollander type
    • D21D1/20—Methods of refining
    • D21D1/40—Washing the fibres
    • 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

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Paper (AREA)

Abstract

An improved pressure washer (10) and process are disclosed for washing cellulose pulp, wherein a mat of pulp (113) is provided on a rotating drum (40) and moves through a washing zone (54) and a dewatering zone (56) between the mat formation zone (50) and a mat removal zone (52). A hood (20) is provided over the drum (40), with appropriate seals, and a pressurized atmosphere is provided in the washing and dewatering zones (54, 56). To relieve the pressure which normally builds up inside the washer drum (40), a conduit (120) is connected between the drum interior (112) and the inlet (86) of the blower (84) used for pressurizing the hood. In this way, foam generation is minimized as the drum interior (112) is maintained at or below atmospheric pressure. A take-off roll, or doctor, is provided for removing the mat from the drum (40).
ES9000536A 1989-02-23 1990-02-22 Pulp washing apparatus and process Expired - Lifetime ES2020636A6 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US31453389A 1989-02-23 1989-02-23

Publications (1)

Publication Number Publication Date
ES2020636A6 true ES2020636A6 (en) 1991-08-16

Family

ID=23220332

Family Applications (1)

Application Number Title Priority Date Filing Date
ES9000536A Expired - Lifetime ES2020636A6 (en) 1989-02-23 1990-02-22 Pulp washing apparatus and process

Country Status (6)

Country Link
CN (1) CN1046576A (en)
AU (1) AU4848890A (en)
CA (1) CA2009328A1 (en)
ES (1) ES2020636A6 (en)
WO (1) WO1990010109A1 (en)
ZA (1) ZA901338B (en)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI81020C (en) * 1988-11-11 1992-03-24 Sunds Defibrator Rauma Oy Procedure for thickening suspension and treating with liquid drum filter
CA2161851C (en) * 1995-10-31 1999-06-01 Mark Tayler Pressure washer drum
AT405420B (en) * 1997-05-26 1999-08-25 Andritz Patentverwaltung DEVICE FOR DRAINING AND WASHING FIBER FIBER SUSPENSIONS
US6017416A (en) * 1997-12-04 2000-01-25 Bonded Fiberglass Co. FRP hood for paper processing plant
SE528716C8 (en) * 2005-06-03 2007-04-24 Metso Paper Inc Apparatus for treating cellulose pulp in a washing device
SE528714C2 (en) * 2005-06-03 2007-01-30 Metso Paper Inc Device for treating cellulose pulp in a washing device adapted to facilitate service and inspection of the device
SE531847E (en) * 2007-12-13 2012-09-11 Metso Paper Inc Apparatus for washing and dewatering of pulp
CN102877345A (en) * 2012-10-31 2013-01-16 江苏大唐机械有限公司 Paper-making raw material washing and dewatering equipment
CN104190598B (en) * 2014-08-29 2017-02-08 山东天阳纸业有限公司 Coating suction collector
CN104528413B (en) * 2014-11-18 2016-09-07 南宁侨虹新材料有限责任公司 Dust-free paper forming box rotary drum jetting type uniform distribution device
CN107201686B (en) * 2016-07-29 2019-06-25 福建中联纸业有限公司 A kind of working method for voluntarily removing deimpurity pulp beating machine

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1012815B (en) * 1951-10-12 1957-07-25 Rauma Repola Oy Washing device for pulp suspensions
US2999785A (en) * 1959-07-17 1961-09-12 Kamyr Ab Method and plant for washing of cellulosic pulp under overpressure
US3487941A (en) * 1967-05-10 1970-01-06 Pertti Olavi Haapamaki Pressure washer
US4808265A (en) * 1986-08-07 1989-02-28 Ingersoll-Rand Company Method of washing pulp in a pressure pulp washer adding two washing liquids

Also Published As

Publication number Publication date
CA2009328A1 (en) 1990-08-23
ZA901338B (en) 1991-01-30
AU4848890A (en) 1990-09-26
WO1990010109A1 (en) 1990-09-07
CN1046576A (en) 1990-10-31

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Legal Events

Date Code Title Description
FA2A Application withdrawn

Effective date: 19920127