CA2446407C - Procede et appareil permettant de recuperer des fibres et des solides a base de fibres a partir de filtrats contenant a la fois des solides et des materiaux d'extraction liposolubles de l'industrie mecanique ou chimio-mecanique des pates - Google Patents
Procede et appareil permettant de recuperer des fibres et des solides a base de fibres a partir de filtrats contenant a la fois des solides et des materiaux d'extraction liposolubles de l'industrie mecanique ou chimio-mecanique des pates Download PDFInfo
- Publication number
- CA2446407C CA2446407C CA002446407A CA2446407A CA2446407C CA 2446407 C CA2446407 C CA 2446407C CA 002446407 A CA002446407 A CA 002446407A CA 2446407 A CA2446407 A CA 2446407A CA 2446407 C CA2446407 C CA 2446407C
- Authority
- CA
- Canada
- Prior art keywords
- filtrate
- fibre
- centrifuge
- solids
- pulp
- 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 - Fee Related
Links
- 238000000034 method Methods 0.000 title claims abstract description 161
- 239000007787 solid Substances 0.000 title claims abstract description 127
- 239000000835 fiber Substances 0.000 title claims abstract description 85
- 239000000463 material Substances 0.000 title claims abstract description 32
- 229920001131 Pulp (paper) Polymers 0.000 title claims abstract description 20
- 239000000706 filtrate Substances 0.000 title claims description 155
- 239000002023 wood Substances 0.000 claims abstract description 13
- 230000008569 process Effects 0.000 claims description 88
- 239000007788 liquid Substances 0.000 claims description 41
- 238000004061 bleaching Methods 0.000 claims description 20
- 239000002562 thickening agent Substances 0.000 claims description 18
- 238000005406 washing Methods 0.000 claims description 17
- 230000008719 thickening Effects 0.000 claims description 14
- 230000001133 acceleration Effects 0.000 claims description 9
- 238000012545 processing Methods 0.000 claims description 7
- 238000007599 discharging Methods 0.000 claims description 5
- 238000007670 refining Methods 0.000 claims description 5
- 238000007790 scraping Methods 0.000 claims 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 54
- 238000000926 separation method Methods 0.000 abstract description 27
- 238000004519 manufacturing process Methods 0.000 abstract description 17
- 230000009467 reduction Effects 0.000 abstract description 4
- 239000000084 colloidal system Substances 0.000 abstract description 3
- 238000011084 recovery Methods 0.000 description 51
- 239000000725 suspension Substances 0.000 description 30
- 238000004088 simulation Methods 0.000 description 23
- 230000014759 maintenance of location Effects 0.000 description 20
- 230000004087 circulation Effects 0.000 description 19
- 239000000123 paper Substances 0.000 description 19
- 238000001914 filtration Methods 0.000 description 17
- 238000012216 screening Methods 0.000 description 15
- 238000010790 dilution Methods 0.000 description 14
- 239000012895 dilution Substances 0.000 description 14
- 239000011343 solid material Substances 0.000 description 11
- 238000012360 testing method Methods 0.000 description 8
- 230000007423 decrease Effects 0.000 description 7
- 239000012071 phase Substances 0.000 description 7
- 230000002829 reductive effect Effects 0.000 description 7
- 238000004062 sedimentation Methods 0.000 description 6
- 239000007844 bleaching agent Substances 0.000 description 5
- 239000000356 contaminant Substances 0.000 description 5
- 239000002245 particle Substances 0.000 description 5
- 238000004537 pulping Methods 0.000 description 5
- 239000013505 freshwater Substances 0.000 description 4
- 238000000227 grinding Methods 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- 102100031260 Acyl-coenzyme A thioesterase THEM4 Human genes 0.000 description 3
- 101000638510 Homo sapiens Acyl-coenzyme A thioesterase THEM4 Proteins 0.000 description 3
- 239000012223 aqueous fraction Substances 0.000 description 3
- 238000005188 flotation Methods 0.000 description 3
- 238000003825 pressing Methods 0.000 description 3
- 238000004064 recycling Methods 0.000 description 3
- 241000894007 species Species 0.000 description 3
- 241000196324 Embryophyta Species 0.000 description 2
- 244000191761 Sida cordifolia Species 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 2
- 238000005452 bending Methods 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 239000012141 concentrate Substances 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 2
- 230000001627 detrimental effect Effects 0.000 description 2
- 238000001704 evaporation Methods 0.000 description 2
- 230000008020 evaporation Effects 0.000 description 2
- 239000012528 membrane Substances 0.000 description 2
- 150000002978 peroxides Chemical class 0.000 description 2
- 238000000746 purification Methods 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 239000003643 water by type Substances 0.000 description 2
- 241000218657 Picea Species 0.000 description 1
- 235000008331 Pinus X rigitaeda Nutrition 0.000 description 1
- 235000011613 Pinus brutia Nutrition 0.000 description 1
- 241000018646 Pinus brutia Species 0.000 description 1
- 241000183024 Populus tremula Species 0.000 description 1
- 241000220317 Rosa Species 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000007865 diluting Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 230000002706 hydrostatic effect Effects 0.000 description 1
- 239000002655 kraft paper Substances 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 238000012067 mathematical method Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000010297 mechanical methods and process Methods 0.000 description 1
- 230000036961 partial effect Effects 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 239000010802 sludge Substances 0.000 description 1
- 239000007790 solid phase Substances 0.000 description 1
- 230000000930 thermomechanical effect Effects 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
- 238000004065 wastewater treatment Methods 0.000 description 1
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
-
- 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
- D21C5/00—Other processes for obtaining cellulose, e.g. cooking cotton linters ; Processes characterised by the choice of cellulose-containing starting materials
Landscapes
- Paper (AREA)
- Treatment Of Liquids With Adsorbents In General (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
- Extraction Or Liquid Replacement (AREA)
Abstract
L'invention concerne un procédé de séparation de matériau fibreux et à base de fibres et de matériau d'extraction lipophile. Ce procédé permet une diminution de la consommation d'eau d'une usine de pâtes et l'utilisation d'espèces de bois possédant une contenu de produit d'extraction supérieur dans la production mécanique et chimio-mécanique des pâtes. Dans un mode de réalisation préféré de cette invention, un centrifugeur décanteur est utilisé pour récupérer les solides et pour séparer les solides et les produits d'extraction lipophiles. A l'aide d'un centrifugeur décanteur, les colloïdes contenant du matériau d'extraction lipophile ne précipitent pas, mais les fibres et les solides à base de fibres précipitent à cause d'une densité supérieure.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FI20010967A FI110580B (fi) | 2001-05-09 | 2001-05-09 | Menetelmä kuidun sekä kuitupohjaisen kiintoaineen talteenottamiseksi sekä rasvaliukoisten uuteaineiden erottamiseksi |
| FI20010967 | 2001-05-09 | ||
| PCT/FI2002/000391 WO2002090647A1 (fr) | 2001-05-09 | 2002-05-07 | Procede et appareil permettant de recuperer des fibres et des solides a base de fibres a partir de filtrats contenant a la fois des solides et des agents d'extraction liposolubles de l'industrie mecanique ou chimio-mecanique des pates |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2446407A1 CA2446407A1 (fr) | 2002-11-14 |
| CA2446407C true CA2446407C (fr) | 2010-01-12 |
Family
ID=8561155
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002446407A Expired - Fee Related CA2446407C (fr) | 2001-05-09 | 2002-05-07 | Procede et appareil permettant de recuperer des fibres et des solides a base de fibres a partir de filtrats contenant a la fois des solides et des materiaux d'extraction liposolubles de l'industrie mecanique ou chimio-mecanique des pates |
Country Status (6)
| Country | Link |
|---|---|
| EP (1) | EP1392913B1 (fr) |
| AT (1) | ATE435328T1 (fr) |
| CA (1) | CA2446407C (fr) |
| DE (1) | DE60232791D1 (fr) |
| FI (1) | FI110580B (fr) |
| WO (1) | WO2002090647A1 (fr) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102392381B (zh) * | 2011-08-02 | 2013-09-25 | 华南理工大学 | 一种化机浆废液碱回收预处理方法 |
| AR122640A1 (es) * | 2020-06-17 | 2022-09-28 | Suzano Sa | Método para tratar un condensado en un proceso de fabricación de pulpa |
| FI20215862A1 (en) * | 2021-08-17 | 2023-02-18 | Metsae Board Oyj | Process, uses thereof, pulp composition and system |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DD223479A1 (de) * | 1984-04-12 | 1985-06-12 | Zellstoff U Papierfabrik Rosen | Verfahren zur mechanischen entharzung von sulfitzellstoff |
| FI81396C (fi) * | 1988-10-25 | 1990-10-10 | Enso Gutzeit Oy | Foerfarande foer behandling av avfallsvatten fraon traefoeraedlingsindustrins massaframstaellningsprocesser. |
| US5321898A (en) * | 1992-06-19 | 1994-06-21 | Decanter Machine, Inc. | Centrifugal screen bowl dryer |
| US5468396A (en) * | 1994-03-16 | 1995-11-21 | Pulp And Paper Research Institute Of Canada | Centrifugal cleaning of pulp and paper process liquids |
-
2001
- 2001-05-09 FI FI20010967A patent/FI110580B/fi not_active IP Right Cessation
-
2002
- 2002-05-07 WO PCT/FI2002/000391 patent/WO2002090647A1/fr not_active Ceased
- 2002-05-07 EP EP02722318A patent/EP1392913B1/fr not_active Expired - Lifetime
- 2002-05-07 CA CA002446407A patent/CA2446407C/fr not_active Expired - Fee Related
- 2002-05-07 AT AT02722318T patent/ATE435328T1/de not_active IP Right Cessation
- 2002-05-07 DE DE60232791T patent/DE60232791D1/de not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| DE60232791D1 (de) | 2009-08-13 |
| FI20010967A0 (fi) | 2001-05-09 |
| EP1392913A1 (fr) | 2004-03-03 |
| FI110580B (fi) | 2003-02-28 |
| EP1392913B1 (fr) | 2009-07-01 |
| FI20010967L (fi) | 2002-11-10 |
| ATE435328T1 (de) | 2009-07-15 |
| CA2446407A1 (fr) | 2002-11-14 |
| WO2002090647A1 (fr) | 2002-11-14 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| MKLA | Lapsed |