JPH09509229A - 化学パルプを蒸煮する連続法における木節(きぶし)の再循環 - Google Patents
化学パルプを蒸煮する連続法における木節(きぶし)の再循環Info
- Publication number
- JPH09509229A JPH09509229A JP7522287A JP52228795A JPH09509229A JP H09509229 A JPH09509229 A JP H09509229A JP 7522287 A JP7522287 A JP 7522287A JP 52228795 A JP52228795 A JP 52228795A JP H09509229 A JPH09509229 A JP H09509229A
- Authority
- JP
- Japan
- Prior art keywords
- pulp
- digester
- suspension
- flow
- chip chute
- 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.)
- Granted
Links
Classifications
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- 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
- D21C9/00—After-treatment of cellulose pulp, e.g. of wood pulp, or cotton linters ; Treatment of dilute or dewatered pulp or process improvement taking place after obtaining the raw cellulosic material and not provided for elsewhere
-
- 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
-
- 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
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Wood Science & Technology (AREA)
- Paper (AREA)
Abstract
Description
Claims (1)
- 【特許請求の範囲】 1.チップが高圧フィーダー(4)の頂部に設けられたチップシュート(3)に 送られ、この高圧フィーダーはチップを直立の長い蒸解釜(digester) (5)を備えた下向流の加圧連続蒸解釜ハウジングに送るためのものであり、チ ップは蒸解釜の頂部に送り込まれ、蒸解されたパルプがその底部から送り出され 、つづいて、繊維にほぐされ洗滌され、次にほぐされたパルプは篩分けられてパ ルプの合格品の流れが得られ、この流れはさらに後続の処理に供され、また主と して木節よりなる不合格品の流れが得られるケミカルパルプの連続蒸解方法にお いて、主として木節よりなる不合格品の流れを、好ましくは洗滌および濃縮後、 チップビン(1)や蒸煮器(2)を通すことなく、該チップシュートに循環させ ることを特徴とする方法。 2.不良品の流れが、チップシュート(3)への循環と関連して、2−7%、好 ましくは4−6%、最も好都合には約5%の乾燥物含量をもつ懸濁液を形成して いることを特徴とする請求の範囲1の方法。 3.遠心ポンプ(12A)を用いて木節含有懸濁液をチップシュート(3)に送 ることを特徴とする請求の範囲2の方法。 4.木節含有懸濁液が再循環ループ(16)を経由してチップシュートに送られ ることを特徴とする請求の 範囲1の方法。 5.懸濁液の所望の密度が、濃縮された木節にパルプ工場の他の部所で発生する 液流と混合することによって得られることを特徴とする請求の範囲2の方法。 6.液流が、少くとも主として、黒液よりなることを特徴とする請求の範囲5の 方法。 7.液流が、少くとも主として、蒸解釜ハウジングの下流にある洗滌工程からの 濾液よりなることを特徴とする請求の範囲5の方法。 8.液流が分離タンク(12)中の木節含有懸濁液に供給されることを特徴とす る請求の範囲5の方法。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE9400616A SE9400616L (sv) | 1994-02-23 | 1994-02-23 | Omhändertagande av kvist vid kontinuerlig kokning |
SE9400616-0 | 1994-02-23 | ||
PCT/SE1994/001135 WO1995023257A1 (en) | 1994-02-23 | 1994-11-28 | Recycling of knots in a continuous process for cooking chemical pulp |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH09509229A true JPH09509229A (ja) | 1997-09-16 |
JP3723573B2 JP3723573B2 (ja) | 2005-12-07 |
Family
ID=20393048
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP52228795A Expired - Lifetime JP3723573B2 (ja) | 1994-02-23 | 1994-11-28 | 化学パルプを蒸煮する連続法における木節(きぶし)の再循環 |
Country Status (9)
Country | Link |
---|---|
US (1) | US5672245A (ja) |
JP (1) | JP3723573B2 (ja) |
AU (1) | AU1428495A (ja) |
BR (1) | BR9408532A (ja) |
CA (1) | CA2182688C (ja) |
FI (1) | FI112956B (ja) |
SE (1) | SE9400616L (ja) |
WO (1) | WO1995023257A1 (ja) |
ZA (1) | ZA95112B (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2002146690A (ja) * | 2000-11-03 | 2002-05-22 | Kvaerner Pulping Ab | パルプの連続蒸煮プロセス |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6024227A (en) | 1997-08-04 | 2000-02-15 | Ahlstrom Machinery Inc. | Tramp material removal from pulp feed systems |
SE518897C2 (sv) * | 2001-04-17 | 2002-12-03 | Lars Obitz | System och metod för matning av fibrer från ett fiberseparationssteg vid ett första tryck till ett torkningssteg vid ett andra, lägre tryck |
SE525065C2 (sv) * | 2003-04-17 | 2004-11-23 | Kvaerner Pulping Tech | Förbehandling av flis med sur vätska vid ångbasning |
BRPI0821203A2 (pt) * | 2007-12-19 | 2014-10-07 | Fpinnovations | Processo, hidrolisado, e, resíduo de nó botânico |
WO2011102760A1 (en) * | 2010-02-17 | 2011-08-25 | Metso Paper Sweden Ab | Method and system for recycling of rejects in a process for cooking chemical pulp |
US9580864B2 (en) * | 2011-08-30 | 2017-02-28 | Valmet Ab | Kraft cooking method using polysulfide cooking liquor |
CA2824076A1 (en) | 2012-08-21 | 2014-02-21 | University Of New Brunswick | System and method for reclaiming rejects in sulfite pulping |
CN105084010B (zh) * | 2015-08-12 | 2017-11-21 | 海南金海浆纸业有限公司 | 一种高压喂料器及系统 |
CN107022917A (zh) * | 2017-05-08 | 2017-08-08 | 柯利佳 | 连续蒸煮器 |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3393121A (en) * | 1965-02-05 | 1968-07-16 | Scott Paper Co | Soda cook of acid sulfite knotter rejects |
US4002528A (en) * | 1972-02-18 | 1977-01-11 | Kamyr, Inc. | Apparatus for processing pulp |
US3886035A (en) * | 1973-03-12 | 1975-05-27 | Kamyr Inc | Process for separating knots from pulp |
NO151123C (no) * | 1975-11-06 | 1985-02-13 | Kamyr Inc | Fremgangsmaate til fremstilling av en homogen cullulosemasse |
US5401361A (en) * | 1992-08-19 | 1995-03-28 | Kamyr, Inc. | Completely coutercurrent cook continuous digester |
US5302247A (en) * | 1992-11-02 | 1994-04-12 | Kamyr, Inc. | Top circulation line cooling for a modified cook digester |
-
1994
- 1994-02-23 SE SE9400616A patent/SE9400616L/ not_active IP Right Cessation
- 1994-11-28 JP JP52228795A patent/JP3723573B2/ja not_active Expired - Lifetime
- 1994-11-28 BR BR9408532A patent/BR9408532A/pt not_active IP Right Cessation
- 1994-11-28 US US08/530,350 patent/US5672245A/en not_active Expired - Lifetime
- 1994-11-28 WO PCT/SE1994/001135 patent/WO1995023257A1/en active IP Right Grant
- 1994-11-28 CA CA002182688A patent/CA2182688C/en not_active Expired - Lifetime
- 1994-11-28 AU AU14284/95A patent/AU1428495A/en not_active Abandoned
-
1995
- 1995-01-09 ZA ZA95112A patent/ZA95112B/xx unknown
-
1996
- 1996-07-23 FI FI962938A patent/FI112956B/fi not_active IP Right Cessation
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2002146690A (ja) * | 2000-11-03 | 2002-05-22 | Kvaerner Pulping Ab | パルプの連続蒸煮プロセス |
Also Published As
Publication number | Publication date |
---|---|
WO1995023257A1 (en) | 1995-08-31 |
FI962938A (fi) | 1996-07-23 |
ZA95112B (en) | 1996-02-05 |
JP3723573B2 (ja) | 2005-12-07 |
SE501369C2 (sv) | 1995-01-23 |
CA2182688C (en) | 2005-04-05 |
AU1428495A (en) | 1995-09-11 |
US5672245A (en) | 1997-09-30 |
BR9408532A (pt) | 1997-08-05 |
SE9400616D0 (sv) | 1994-02-23 |
CA2182688A1 (en) | 1995-08-31 |
FI962938A0 (fi) | 1996-07-23 |
SE9400616L (sv) | 1995-01-23 |
FI112956B (fi) | 2004-02-13 |
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