NO130733B - - Google Patents
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- Publication number
- NO130733B NO130733B NO02421/71A NO242171A NO130733B NO 130733 B NO130733 B NO 130733B NO 02421/71 A NO02421/71 A NO 02421/71A NO 242171 A NO242171 A NO 242171A NO 130733 B NO130733 B NO 130733B
- Authority
- NO
- Norway
- Prior art keywords
- boiler
- liquid
- zone
- digestion
- stated
- Prior art date
Links
- 239000007788 liquid Substances 0.000 claims description 44
- 238000010411 cooking Methods 0.000 claims description 21
- 238000005470 impregnation Methods 0.000 claims description 20
- 230000029087 digestion Effects 0.000 claims description 18
- 238000000034 method Methods 0.000 claims description 9
- 229920002678 cellulose Polymers 0.000 claims description 7
- 239000001913 cellulose Substances 0.000 claims description 7
- 239000000203 mixture Substances 0.000 claims description 6
- 238000001816 cooling Methods 0.000 claims description 5
- 239000002657 fibrous material Substances 0.000 claims description 5
- 238000009835 boiling Methods 0.000 claims description 4
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 claims description 3
- 230000000149 penetrating effect Effects 0.000 claims description 3
- LSNNMFCWUKXFEE-UHFFFAOYSA-L sulfite Chemical compound [O-]S([O-])=O LSNNMFCWUKXFEE-UHFFFAOYSA-L 0.000 claims description 3
- 229920005610 lignin Polymers 0.000 claims description 2
- 230000002093 peripheral effect Effects 0.000 claims description 2
- 238000005406 washing Methods 0.000 description 9
- 238000010438 heat treatment Methods 0.000 description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 230000007704 transition Effects 0.000 description 4
- 239000002689 soil Substances 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 229910021653 sulphate ion Inorganic materials 0.000 description 2
- 239000002023 wood Substances 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000001143 conditioned effect Effects 0.000 description 1
- 238000010790 dilution Methods 0.000 description 1
- 239000012895 dilution Substances 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 206010037844 rash Diseases 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 238000011144 upstream manufacturing Methods 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
- D21C3/00—Pulping cellulose-containing materials
- D21C3/22—Other features of pulping processes
- D21C3/24—Continuous processes
-
- 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)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE9004/70A SE343344B (sv) | 1970-06-29 | 1970-06-29 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| NO130733B true NO130733B (sv) | 1974-10-21 |
| NO130733C NO130733C (sv) | 1975-01-29 |
Family
ID=20275585
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NO2421/71A NO130733C (sv) | 1970-06-29 | 1971-06-25 |
Country Status (8)
| Country | Link |
|---|---|
| US (1) | US3811994A (sv) |
| JP (1) | JPS5034641B1 (sv) |
| CA (1) | CA938820A (sv) |
| DE (1) | DE2132116C3 (sv) |
| FI (1) | FI52366C (sv) |
| FR (1) | FR2100030A5 (sv) |
| NO (1) | NO130733C (sv) |
| SE (1) | SE343344B (sv) |
Families Citing this family (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SE431662B (sv) * | 1974-07-05 | 1984-02-20 | Kamyr Ab | Sett vid kontinuerlig kokning av fibermaterial |
| US3941650A (en) * | 1974-08-09 | 1976-03-02 | Schnyder Auxilius P | Continuous digester |
| US4071399A (en) * | 1976-09-01 | 1978-01-31 | Kamyr, Inc. | Apparatus and method for the displacement impregnation of cellulosic chips material |
| US4547264A (en) * | 1979-02-12 | 1985-10-15 | Kamyr, Inc. | Method of withdrawing liquid from a pair of vertically spaced annular screens |
| US4221632A (en) * | 1979-04-03 | 1980-09-09 | Weyerhaeuser Company | Method and apparatus for determining the location of the chip level in a pulping digester |
| FI66215C (fi) * | 1982-12-14 | 1984-09-10 | Ekono Oy | Saett vid kontinuerlig uppslutning av finfoerdelat cellulosahaltigt material |
| US4693785A (en) * | 1984-02-27 | 1987-09-15 | Laakso Oliver A | Digester having plural screens and means for controlling the liquid withdrawal |
| US4568419A (en) * | 1984-02-27 | 1986-02-04 | Laakso Oliver A | Method of treating comminuted cellulosic fibrous material in a vertical vessel |
| US5788812A (en) * | 1985-11-05 | 1998-08-04 | Agar; Richard C. | Method of recovering furfural from organic pulping liquor |
| US5236554A (en) * | 1991-08-16 | 1993-08-17 | Kamyr, Inc. | Digester having plural screens with means for controlling liquid injection and withdrawal |
| SE500455C2 (sv) * | 1992-11-18 | 1994-06-27 | Kamyr Ab | Förfarande vid kontinuerlig kokning under förhöjt tryck och temperatur av fibermateral i en vertikal kokare |
| US5985096A (en) * | 1997-09-23 | 1999-11-16 | Ahlstrom Machinery Inc. | Vertical pulping digester having substantially constant diameter |
| US6123808A (en) * | 1997-12-09 | 2000-09-26 | Ahlstrom Machinery Inc. | Distribution of dilution liquor to the discharge of a cellulose pulp digester |
-
1970
- 1970-06-29 SE SE9004/70A patent/SE343344B/xx unknown
-
1971
- 1971-06-25 NO NO2421/71A patent/NO130733C/no unknown
- 1971-06-28 FI FI711821A patent/FI52366C/sv active
- 1971-06-28 CA CA116793A patent/CA938820A/en not_active Expired
- 1971-06-28 DE DE2132116A patent/DE2132116C3/de not_active Expired
- 1971-06-29 US US00157855A patent/US3811994A/en not_active Expired - Lifetime
- 1971-06-29 FR FR7123615A patent/FR2100030A5/fr not_active Expired
- 1971-06-29 JP JP46046930A patent/JPS5034641B1/ja active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5034641B1 (sv) | 1975-11-10 |
| NO130733C (sv) | 1975-01-29 |
| CA938820A (en) | 1973-12-25 |
| US3811994A (en) | 1974-05-21 |
| FR2100030A5 (sv) | 1972-03-17 |
| DE2132116A1 (de) | 1972-01-05 |
| DE2132116B2 (de) | 1973-05-10 |
| DE2132116C3 (de) | 1973-12-13 |
| FI52366C (sv) | 1977-08-10 |
| SE343344B (sv) | 1972-03-06 |
| FI52366B (sv) | 1977-05-02 |
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