CA1237930A - Continuous digester system - Google Patents
Continuous digester systemInfo
- Publication number
- CA1237930A CA1237930A CA000453111A CA453111A CA1237930A CA 1237930 A CA1237930 A CA 1237930A CA 000453111 A CA000453111 A CA 000453111A CA 453111 A CA453111 A CA 453111A CA 1237930 A CA1237930 A CA 1237930A
- Authority
- CA
- Canada
- Prior art keywords
- liquid
- digester
- vessel
- liquor
- withdrawn
- 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
Links
- 239000007788 liquid Substances 0.000 claims abstract description 94
- 238000011282 treatment Methods 0.000 claims abstract description 34
- 238000010411 cooking Methods 0.000 claims abstract description 21
- 238000010791 quenching Methods 0.000 claims abstract description 12
- 239000002657 fibrous material Substances 0.000 claims abstract description 10
- 238000005406 washing Methods 0.000 claims abstract description 10
- 230000005465 channeling Effects 0.000 claims abstract description 7
- 239000002002 slurry Substances 0.000 claims abstract 2
- 239000000463 material Substances 0.000 claims description 26
- 238000000034 method Methods 0.000 claims description 21
- 230000000712 assembly Effects 0.000 claims description 9
- 238000000429 assembly Methods 0.000 claims description 9
- 230000004087 circulation Effects 0.000 claims description 5
- 238000007599 discharging Methods 0.000 claims description 5
- 230000000694 effects Effects 0.000 claims description 4
- 230000000171 quenching effect Effects 0.000 claims description 3
- 230000003134 recirculating effect Effects 0.000 claims 3
- 239000000725 suspension Substances 0.000 claims 1
- 239000002023 wood Substances 0.000 abstract description 6
- 229920001131 Pulp (paper) Polymers 0.000 abstract 1
- 230000000750 progressive effect Effects 0.000 abstract 1
- 230000001360 synchronised effect Effects 0.000 description 3
- 241000196324 Embryophyta Species 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 239000002154 agricultural waste Substances 0.000 description 1
- 238000004061 bleaching Methods 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 238000005470 impregnation Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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
- D21C7/00—Digesters
Landscapes
- Paper (AREA)
- General Preparation And Processing Of Foods (AREA)
- Polysaccharides And Polysaccharide Derivatives (AREA)
- Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
- Investigating Or Analysing Biological Materials (AREA)
- Ultra Sonic Daignosis Equipment (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US583,856 | 1984-02-27 | ||
| US06/583,856 US4568419A (en) | 1984-02-27 | 1984-02-27 | Method of treating comminuted cellulosic fibrous material in a vertical vessel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1237930A true CA1237930A (en) | 1988-06-14 |
Family
ID=24334865
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000453111A Expired CA1237930A (en) | 1984-02-27 | 1984-04-30 | Continuous digester system |
Country Status (9)
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0518851A1 (en) * | 1991-06-10 | 1992-12-16 | Kamyr, Inc. | Reducing chips to fibres in continuous digesters to facilitate lignin extraction |
| US20050274468A1 (en) * | 2004-05-28 | 2005-12-15 | Metso Paper, Inc. | Central screen |
| SE0800718L (sv) * | 2008-03-31 | 2008-12-09 | Metso Paper Inc | Anordning samt förfarande för spädning av cellulosamassa |
| UY39227A (es) * | 2020-05-22 | 2021-12-31 | Suzano Sa | Método para desobstruir o limpiar una pantalla en un digestor continuo de cocción de proceso kraft |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2414062A (en) * | 1944-05-02 | 1947-01-07 | Kamyr Ab | Apparatus for heating and controlling the temperature in a continuously operating digester |
| GB643269A (en) * | 1945-12-28 | 1950-09-15 | Kamyr Ab | Apparatus for heating and controlling the temperature in a continuously operating digester |
| DE893441C (de) * | 1948-11-25 | 1953-10-15 | Kamyr Ab | Zellstoffkocher |
| GB684222A (en) * | 1950-07-08 | 1952-12-10 | Kamyr Ab | Cellulose digester |
| US2901039A (en) * | 1954-12-20 | 1959-08-25 | Sven A Salmonson | Apparatus for preconditioning chips in a digester |
| SE357219B (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * | 1970-02-11 | 1973-06-18 | Kamyr Ab | |
| SE343344B (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * | 1970-06-29 | 1972-03-06 | Kamyr Ab | |
| US4193839A (en) * | 1976-05-11 | 1980-03-18 | Kamyr, Inc. | Flow control method and apparatus for continuous wood chip digester screenless liquor extractor |
| US4161421A (en) * | 1977-09-13 | 1979-07-17 | Kamyr, Inc. | Method and apparatus for continuous oxygen bleaching of cellulosic pulp |
-
1984
- 1984-02-27 US US06/583,856 patent/US4568419A/en not_active Expired - Fee Related
- 1984-04-12 EP EP84104132A patent/EP0153977B1/en not_active Expired
- 1984-04-12 AT AT84104132T patent/ATE29746T1/de not_active IP Right Cessation
- 1984-04-12 DE DE8484104132T patent/DE3466258D1/de not_active Expired
- 1984-04-30 CA CA000453111A patent/CA1237930A/en not_active Expired
- 1984-05-03 NO NO841761A patent/NO163969C/no unknown
- 1984-05-07 FI FI841817A patent/FI76846C/fi not_active IP Right Cessation
- 1984-07-09 BR BR8403399A patent/BR8403399A/pt not_active IP Right Cessation
- 1984-07-30 JP JP59157717A patent/JPS60224890A/ja active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| BR8403399A (pt) | 1986-02-18 |
| NO841761L (no) | 1985-08-28 |
| JPS60224890A (ja) | 1985-11-09 |
| FI841817A0 (fi) | 1984-05-07 |
| JPS6364556B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1988-12-12 |
| DE3466258D1 (en) | 1987-10-22 |
| EP0153977B1 (en) | 1987-09-16 |
| US4568419A (en) | 1986-02-04 |
| FI841817A7 (fi) | 1985-08-28 |
| ATE29746T1 (de) | 1987-10-15 |
| FI76846B (fi) | 1988-08-31 |
| NO163969C (no) | 1990-08-15 |
| FI76846C (fi) | 1988-12-12 |
| NO163969B (no) | 1990-05-07 |
| EP0153977A1 (en) | 1985-09-11 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4746404A (en) | Chip presteaming and air washing | |
| US5053108A (en) | High sulfidity cook for paper pulp using black liquor sulfonization of steamed chips | |
| US5213662A (en) | Treatment of chips with high temperature black liquor to reduce black liquor viscosity | |
| US5236554A (en) | Digester having plural screens with means for controlling liquid injection and withdrawal | |
| EP0161330B1 (en) | Chip presteaming and air washing | |
| AU676308B2 (en) | Cooking system for hardwood | |
| EP0196578B1 (en) | Stationary diffuser | |
| EP0933468A2 (en) | Method and apparatus for screening waste paper pulp | |
| US6277240B1 (en) | Method for continuously pulping cellulosic fibrous material | |
| US4693785A (en) | Digester having plural screens and means for controlling the liquid withdrawal | |
| CA1237930A (en) | Continuous digester system | |
| WO1994009203A1 (en) | Completely countercurrent cook continuous digester | |
| US6123808A (en) | Distribution of dilution liquor to the discharge of a cellulose pulp digester | |
| US5069752A (en) | Digester screen switching | |
| US4193839A (en) | Flow control method and apparatus for continuous wood chip digester screenless liquor extractor | |
| CA2246024C (en) | Tapered screen assembly for a cellulose pulp digester | |
| US6120647A (en) | Simplified liquid removal system for a cellulose pulp digester | |
| WO1991005907A1 (en) | Method for discharging a digester | |
| US4836893A (en) | Apparatus for treatment of fiber material |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKEX | Expiry |