BRPI0518572A2 - mÉtodo e aparelho para tratar pasta fluida de lama de cal que estÁ sendo gerada em um processo de causticaÇço - Google Patents

mÉtodo e aparelho para tratar pasta fluida de lama de cal que estÁ sendo gerada em um processo de causticaÇço

Info

Publication number
BRPI0518572A2
BRPI0518572A2 BRPI0518572-6A BRPI0518572A BRPI0518572A2 BR PI0518572 A2 BRPI0518572 A2 BR PI0518572A2 BR PI0518572 A BRPI0518572 A BR PI0518572A BR PI0518572 A2 BRPI0518572 A2 BR PI0518572A2
Authority
BR
Brazil
Prior art keywords
slurry
filter
lime
sludge
generated
Prior art date
Application number
BRPI0518572-6A
Other languages
English (en)
Inventor
Holger Engdahl
Jouni Jaentti
Markku Lankinen
Antti Mattelmaeki
Simo Suutari
Mika Kottila
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=33515270&utm_source=***_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=BRPI0518572(A2) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Andritz Oy filed Critical Andritz Oy
Publication of BRPI0518572A2 publication Critical patent/BRPI0518572A2/pt
Publication of BRPI0518572B1 publication Critical patent/BRPI0518572B1/pt

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
    • D21C11/00—Regeneration of pulp liquors or effluent waste waters
    • 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
    • B01D33/15—Filters with filtering elements which move during the filtering operation with rotary plane filtering surfaces
    • B01D33/21—Filters with filtering elements which move during the filtering operation with rotary plane filtering surfaces with hollow filtering discs transversely mounted on a hollow rotary shaft
    • 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
    • B01D33/44—Regenerating the filter material in the filter
    • B01D33/46—Regenerating the filter material in the filter by scrapers, brushes nozzles or the like acting on the cake-side of the filtering element
    • B01D33/466—Regenerating the filter material in the filter by scrapers, brushes nozzles or the like acting on the cake-side of the filtering element scrapers
    • 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
    • B01D33/58—Handling the filter cake in the filter for purposes other than for regenerating the filter cake remaining on the filtering element
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D37/00—Processes of filtration
    • 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
    • D21C11/00—Regeneration of pulp liquors or effluent waste waters
    • D21C11/04—Regeneration of pulp liquors or effluent waste waters of alkali lye

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Paper (AREA)
  • Treatment Of Sludge (AREA)
  • Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)

Abstract

TODO E APARELHO PARA TRATAR PASTA FLUIDA DE LAMA DE CAL QUE ESTA SENDO GERADA EM UM PROCESSO DE CAUSTICAÇçO. A presente invenção refere-se a um método de tratamento de pasta fluida de lama de cal que está sendo gerada em um processo de causticação em uma usina de polpa em um filtro de discos, método esse no qual a lama de cal é alimentada ao filtro, espessada nos discos de filtro e removida dos discos de filtro. A lama de cal é tratada em pelo menos dois estágios em um mesmo filtro de discos de uma maneira tal que a lama de cal que entra no filtro é alimentada em apenas uma parte dos discos de filtro, onde lama de cal é espessada e removida dos discos, e a lama de cal removida é- levada novaniente à forma de pasta fluida em liquido, e a pasta fluido de lama de cal é alimentada a uma segunda parte dos discos de filtro, onde a lama de cal é espessada e removida do filtro e conduzida a um estágio de processo subseqúente. A invenção também se refere a um aparelho.
BRPI0518572-6A 2004-11-25 2005-11-24 Método e aparelho para tratar pasta fluida de lama de cal que está sendo gerada em um processo de causticação BRPI0518572B1 (pt)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FI20041518A FI20041518A (fi) 2004-11-25 2004-11-25 Menetelmä ja laite meesan käsittelemiseksi
FI20041518 2004-11-25
PCT/FI2005/000507 WO2006056649A1 (en) 2004-11-25 2005-11-24 Method and apparatus for thickening lime mud in a disc filter

Publications (2)

Publication Number Publication Date
BRPI0518572A2 true BRPI0518572A2 (pt) 2008-11-25
BRPI0518572B1 BRPI0518572B1 (pt) 2018-06-19

Family

ID=33515270

Family Applications (1)

Application Number Title Priority Date Filing Date
BRPI0518572-6A BRPI0518572B1 (pt) 2004-11-25 2005-11-24 Método e aparelho para tratar pasta fluida de lama de cal que está sendo gerada em um processo de causticação

Country Status (11)

Country Link
US (1) US8002994B2 (pt)
EP (1) EP1836345B2 (pt)
JP (1) JP4958788B2 (pt)
CN (1) CN101065536B (pt)
AU (1) AU2005308744B2 (pt)
BR (1) BRPI0518572B1 (pt)
ES (1) ES2439574T5 (pt)
FI (1) FI20041518A (pt)
PL (1) PL1836345T5 (pt)
PT (1) PT1836345E (pt)
WO (1) WO2006056649A1 (pt)

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WO2014011089A1 (en) * 2012-07-09 2014-01-16 Metso Paper Sweden Ab Method and apparatus for obtaining strong white liquor and lime mud with low residual alkali level
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US10729994B2 (en) * 2015-12-03 2020-08-04 Veolia Water Solutions & Technologies Support Rotary disc filter
CN106638099B (zh) * 2016-12-30 2019-01-25 玖龙纸业（东莞）有限公司 一种脱墨浆线尾渣白水回收回用***
US11000791B2 (en) * 2019-03-06 2021-05-11 Veolia Water Solutions & Technologies Support Rotary disc filter having backwash guides

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Also Published As

Publication number Publication date
AU2005308744B2 (en) 2010-11-11
ES2439574T3 (es) 2014-01-23
AU2005308744A1 (en) 2006-06-01
EP1836345B2 (en) 2021-03-31
CN101065536B (zh) 2011-05-25
FI20041518A (fi) 2006-05-26
JP4958788B2 (ja) 2012-06-20
FI20041518A0 (fi) 2004-11-25
ES2439574T5 (es) 2021-11-16
WO2006056649A1 (en) 2006-06-01
EP1836345B1 (en) 2013-09-18
US8002994B2 (en) 2011-08-23
EP1836345A1 (en) 2007-09-26
US20080164222A1 (en) 2008-07-10
JP2008521589A (ja) 2008-06-26
PL1836345T3 (pl) 2014-03-31
BRPI0518572B1 (pt) 2018-06-19
CN101065536A (zh) 2007-10-31
PL1836345T5 (pl) 2021-08-02
PT1836345E (pt) 2013-12-23

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Legal Events

Date Code Title Description
B07A Application suspended after technical examination (opinion) [chapter 7.1 patent gazette]
B06A Patent application procedure suspended [chapter 6.1 patent gazette]
B09A Decision: intention to grant [chapter 9.1 patent gazette]
B16A Patent or certificate of addition of invention granted [chapter 16.1 patent gazette]