CN115667621A - 连续法牛皮纸蒸煮塔中筛网的解堵或清洁方法 - Google Patents
连续法牛皮纸蒸煮塔中筛网的解堵或清洁方法 Download PDFInfo
- Publication number
- CN115667621A CN115667621A CN202180036782.2A CN202180036782A CN115667621A CN 115667621 A CN115667621 A CN 115667621A CN 202180036782 A CN202180036782 A CN 202180036782A CN 115667621 A CN115667621 A CN 115667621A
- Authority
- CN
- China
- Prior art keywords
- screen
- ring
- cooking
- cleaning liquid
- tower
- 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.)
- Pending
Links
- 238000010411 cooking Methods 0.000 title claims abstract description 85
- 238000004140 cleaning Methods 0.000 title claims abstract description 69
- 238000000034 method Methods 0.000 title claims abstract description 47
- 239000002655 kraft paper Substances 0.000 title claims abstract description 25
- 239000012530 fluid Substances 0.000 claims abstract description 15
- 239000007788 liquid Substances 0.000 claims description 80
- 238000005406 washing Methods 0.000 claims description 16
- 238000010924 continuous production Methods 0.000 claims description 8
- 230000003113 alkalizing effect Effects 0.000 claims description 7
- 239000000203 mixture Substances 0.000 claims description 6
- 238000011010 flushing procedure Methods 0.000 claims description 3
- 239000000463 material Substances 0.000 description 15
- 239000002023 wood Substances 0.000 description 11
- 238000000605 extraction Methods 0.000 description 9
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 6
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 6
- 239000000243 solution Substances 0.000 description 4
- 239000000725 suspension Substances 0.000 description 4
- 229910000019 calcium carbonate Inorganic materials 0.000 description 3
- 238000001704 evaporation Methods 0.000 description 3
- 230000008020 evaporation Effects 0.000 description 3
- 239000011368 organic material Substances 0.000 description 3
- 239000002699 waste material Substances 0.000 description 3
- 230000003449 preventive effect Effects 0.000 description 2
- GRVFOGOEDUUMBP-UHFFFAOYSA-N sodium sulfide (anhydrous) Chemical compound [Na+].[Na+].[S-2] GRVFOGOEDUUMBP-UHFFFAOYSA-N 0.000 description 2
- 230000002087 whitening effect Effects 0.000 description 2
- 241000196324 Embryophyta Species 0.000 description 1
- 229920002488 Hemicellulose Polymers 0.000 description 1
- 241000779819 Syncarpia glomulifera Species 0.000 description 1
- 150000001298 alcohols Chemical class 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 230000001174 ascending effect Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000010790 dilution Methods 0.000 description 1
- 239000012895 dilution Substances 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 238000011049 filling Methods 0.000 description 1
- 239000000706 filtrate Substances 0.000 description 1
- 150000004676 glycans Chemical class 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 239000011121 hardwood Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 229910010272 inorganic material Inorganic materials 0.000 description 1
- 239000011147 inorganic material Substances 0.000 description 1
- 229920005610 lignin Polymers 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 238000013021 overheating Methods 0.000 description 1
- 230000021962 pH elevation Effects 0.000 description 1
- 239000001739 pinus spp. Substances 0.000 description 1
- 229920001282 polysaccharide Polymers 0.000 description 1
- 239000005017 polysaccharide Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 238000004537 pulping Methods 0.000 description 1
- 238000010926 purge Methods 0.000 description 1
- 238000012958 reprocessing Methods 0.000 description 1
- 239000011122 softwood Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000003784 tall oil Substances 0.000 description 1
- 229940036248 turpentine Drugs 0.000 description 1
Images
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
- D21C7/12—Devices for regulating or controlling
-
- 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
- D21C7/14—Means for circulating the lye
Landscapes
- Paper (AREA)
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US202063029134P | 2020-05-22 | 2020-05-22 | |
US63/029,134 | 2020-05-22 | ||
PCT/BR2021/050221 WO2021232132A1 (fr) | 2020-05-22 | 2021-05-24 | Procédé de débouchage ou de nettoyage d'un tamis dans un lessiveur de cuisson kraft à cuisson continue |
Publications (1)
Publication Number | Publication Date |
---|---|
CN115667621A true CN115667621A (zh) | 2023-01-31 |
Family
ID=78708828
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN202180036782.2A Pending CN115667621A (zh) | 2020-05-22 | 2021-05-24 | 连续法牛皮纸蒸煮塔中筛网的解堵或清洁方法 |
Country Status (7)
Country | Link |
---|---|
CN (1) | CN115667621A (fr) |
BR (1) | BR112022023799A2 (fr) |
CL (1) | CL2022003257A1 (fr) |
FI (1) | FI20226149A1 (fr) |
SE (1) | SE2251530A1 (fr) |
UY (1) | UY39227A (fr) |
WO (1) | WO2021232132A1 (fr) |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
SE357219B (fr) * | 1970-02-11 | 1973-06-18 | Kamyr Ab | |
US4040901A (en) * | 1976-08-16 | 1977-08-09 | Esco Corporation | Mounting for sectional screen |
US4568419A (en) * | 1984-02-27 | 1986-02-04 | Laakso Oliver A | Method of treating comminuted cellulosic fibrous material in a vertical vessel |
WO1994023119A1 (fr) * | 1993-04-05 | 1994-10-13 | Kvaerner Pulping Technologies Ab | Tamis mobiles a va-et-vient dans une cuve allongee verticale |
US5824188A (en) * | 1993-05-04 | 1998-10-20 | Ahlstrom Machinery Inc. | Method of controlling the pressure of a continuous digester using an extraction-dilution |
US5489363A (en) * | 1993-05-04 | 1996-02-06 | Kamyr, Inc. | Pulping with low dissolved solids for improved pulp strength |
SE502486C2 (sv) * | 1994-02-18 | 1995-10-30 | Kvaerner Pulping Tech | Förfarande och anordning av ventil för avdragning och backspolning av exv. kokarvätska vid cellulosakokare samt användning därav vid kokarsilar |
JP2835825B2 (ja) * | 1995-10-02 | 1998-12-14 | クヴァナパルピング株式会社 | 蒸解釜内部スクリーンの閉塞防止装置 |
US7799173B2 (en) * | 2007-01-18 | 2010-09-21 | Andritz Inc. | Screen plates having diagonal slots with curved inlets for a digester |
US20090038767A1 (en) * | 2007-08-07 | 2009-02-12 | Andritz Inc. | Method and System for Semi-Chemical Pulping |
US7976682B2 (en) * | 2008-09-23 | 2011-07-12 | Andritz Inc. | Hinged screen plate for drum pulp washer and method for cleaning the plate |
RU2515518C1 (ru) * | 2010-07-09 | 2014-05-10 | Метсо Пейпер Свиден Аб | Способ и система пропитки щепы |
-
2021
- 2021-05-21 UY UY0001039227A patent/UY39227A/es unknown
- 2021-05-24 WO PCT/BR2021/050221 patent/WO2021232132A1/fr active Application Filing
- 2021-05-24 SE SE2251530A patent/SE2251530A1/en unknown
- 2021-05-24 BR BR112022023799A patent/BR112022023799A2/pt unknown
- 2021-05-24 CN CN202180036782.2A patent/CN115667621A/zh active Pending
- 2021-05-24 FI FI20226149A patent/FI20226149A1/en unknown
-
2022
- 2022-11-18 CL CL2022003257A patent/CL2022003257A1/es unknown
Also Published As
Publication number | Publication date |
---|---|
SE2251530A1 (en) | 2022-12-21 |
WO2021232132A1 (fr) | 2021-11-25 |
BR112022023799A2 (pt) | 2022-12-27 |
FI20226149A1 (en) | 2022-12-21 |
CL2022003257A1 (es) | 2023-06-30 |
UY39227A (es) | 2021-12-31 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PB01 | Publication | ||
PB01 | Publication | ||
SE01 | Entry into force of request for substantive examination | ||
SE01 | Entry into force of request for substantive examination |