EP1477609A2 - Appareil pour l'essorage de la pâte de bois - Google Patents

Appareil pour l'essorage de la pâte de bois Download PDF

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Publication number
EP1477609A2
EP1477609A2 EP04009499A EP04009499A EP1477609A2 EP 1477609 A2 EP1477609 A2 EP 1477609A2 EP 04009499 A EP04009499 A EP 04009499A EP 04009499 A EP04009499 A EP 04009499A EP 1477609 A2 EP1477609 A2 EP 1477609A2
Authority
EP
European Patent Office
Prior art keywords
pulp
machine according
dewatering machine
drying
pulp dewatering
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.)
Withdrawn
Application number
EP04009499A
Other languages
German (de)
English (en)
Other versions
EP1477609A3 (fr
Inventor
Kurt Schramm
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of EP1477609A2 publication Critical patent/EP1477609A2/fr
Publication of EP1477609A3 publication Critical patent/EP1477609A3/fr
Withdrawn legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
    • D21F5/00—Dryer section of machines for making continuous webs of paper
    • D21F5/18—Drying webs by hot air
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
    • D21F11/00—Processes for making continuous lengths of paper, or of cardboard, or of wet web for fibre board production, on paper-making machines
    • D21F11/06—Processes for making continuous lengths of paper, or of cardboard, or of wet web for fibre board production, on paper-making machines of the cylinder type
    • D21F11/08—Processes for making continuous lengths of paper, or of cardboard, or of wet web for fibre board production, on paper-making machines of the cylinder type paper or board consisting of two or more layers
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
    • D21F3/00—Press section of machines for making continuous webs of paper
    • D21F3/02—Wet presses
    • D21F3/04—Arrangements thereof
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
    • D21F9/00—Complete machines for making continuous webs of paper
    • D21F9/04—Complete machines for making continuous webs of paper of the cylinder type
    • D21F9/043—Complete machines for making continuous webs of paper of the cylinder type with immersed cylinder

Definitions

  • the invention relates to a pulp dewatering machine, especially for the production of paper, with a screen drainage device, a press device, a drying device and a connected cross cutter.
  • Pulp dewatering machines of the type mentioned above are already known. According to the state of the art, the maximum driven speeds in such paper making machines in the range of 50 - 70 m / min.
  • the upper limit of the speed of such machines is based essentially on two factors, drainage capacity the sieve dewatering device and the speed of the Cross cutter.
  • Sieve dewatering device usually uses long sieves, the length of which is decisive for the drainage capacity. The latter increases with the length of the fourdrinier wire, but one Extending the fourdrinier wire by a few meters is only possible Increase the speed by a few m / min.
  • the cross cutters usually also do not allow higher ones Speeds than those given above. To achieve higher speeds would have to be in the cross cutter Overlap of the cellulose sheets may be possible, but because of the surface roughness of the cellulose sheets is not possible.
  • the invention has for its object a pulp dewatering machine to create which is a significant increase of those still used on pulp dewatering machines Permits speeds.
  • the screen dewatering device is a circular screen cylinder device having.
  • Circular sieves allow significantly higher ones Speeds in the range of approx. 90 m / min as long sieves.
  • Special circular sieves the so-called suction circular sieves even speeds up to 450 m / min too.
  • the circular screen cylinder device can have a high drainage capacity have several, preferably four suction circular sieves.
  • the cylinder screen device can also be a turning press, so that the pulp web drains from both sides can have, as well as a Eisseurpresse.
  • the press device can be used to further increase the speed have at least one smoothing cylinder which with its ground and polished surface as one-sided Smoothing cylinder acts and the contact side of the circulating pulp web gives its own surface quality in mirror image.
  • the one-sided smoothing of the cellulose web can be sufficient be an overlap of the pulp sheets in the cross cutter to enable.
  • the at least one smoothing cylinder can thereby to further improve the drainage performance interact with one or more suction press rollers.
  • Cellulose web two smoothing cylinders can be provided. With the improvement of the surface quality of the cellulose web on both sides can be a flawless and problem-free in the cross cutter Overlap of the pulp sheets can be achieved. This allows Speeds in the range of 150-160 m / min can be achieved.
  • the drying facility can expediently at least one Have drying tower, wherein in the at least one drying tower Impact flow nozzles can be arranged. At least that a drying tower can be a swing tower for heating or cooling follow the cellulose web. A cooling tower can then be installed downstream be sure that the pulp web is in front entry into the sheeter to a few degrees has cooled below room temperature so that static charges in the cross cutter, which would otherwise lead to a Can damage the vibrating dishes.
  • the drying device a horizontally arranged drying channel for the pulp web.
  • the Drying channel have three sections, the first Section drying is done with hot air.
  • the second Section of the drying tunnel can be analogous to the swing tower Heating or cooling and the last section only for cooling the Cellulose web may be provided.
  • the Drying channel have an automatic web edge control.
  • a dancer roller Between the last smoothing cylinder and the drying device can be arranged a dancer roller, so that a longitudinal shrinkage the cellulose web is compensated for by overdrying can be.
  • Electromagnetically fixable clamping rod is provided be mounted on two side guide chains. Between the last smoothing cylinder and the drying device can also use a tee frame with one on both sides 45 ° swivel tee rocker to tee off the web top 500 - 1000 mm wide. To manage the Web edges can be arranged smoothly sliding be brought from a 45 ° position to a 90 ° position can be and have contact switches that when reached the 90 ° position, the upper clamping bar strip is ejected trigger.
  • the web in the machine can advantageously be a clamping press for the full web width between the last cooling tower and the Cross cutter may be provided.
  • the Pulp dewatering machine preferably digital measuring and Display devices for the residual moisture and the temperature of the cellulose webs at least before entering the Have cross cutters.
  • Fig. 1 shows schematically a first embodiment of a cellulose dewatering machine 10 according to the invention with a Screen dewatering device 20, a press device 30, a drying device 40 and a connected cross cutter 50.
  • the screen drainage device 20 has one Circular sieve cylinder device with four suction circular sieves 21, 22, 23 and 24, a turning press 25 and an ego press 26.
  • the cellulose web 11 is after the first pass over the Suction circular screens 24 - 21 guided to the turning press 25, turned there and to drain the second side of the web again via the Suction circular screens 21 - 24 guided, then through the ego press 26, and then forwarded to the press device 30.
  • the press device 30 has two smoothing cylinders 31 and 32, on a smoothing cylinder 31 of these for Improvement of drainage performance two suction press rollers 33 and 34 are arranged.
  • two suction press rollers 33 and 34 are arranged.
  • Both smoothing cylinders 31 and 32 with dryer hoods 35 and 36 equipped.
  • the use of two smoothing cylinders 31 and 32 in an S-loop enables treatment both sides of the cellulose web 11, this not only dewatered but also be smoothed so that a safe Overlap of the sheets on cross cutter 50 and thus speeds 150 - 160 m / min can be guaranteed.
  • the Press device could also be just a smoothing cylinder instead have two. Then only one side of the web is smoothed out but possibly also to achieve high speeds sufficient by allowing the sheets to overlap can be.
  • the pulp web 11 is transferred from the press device 30 into the Drying device 40 listed, which is a drying tower 41, a swing tower 42 for heating or cooling and one Has cooling tower 43 for cooling the cellulose web 11.
  • the Drying in drying tower 41 takes place with the help of in the figure Impingement nozzles not shown in detail.
  • the swing tower 42 will optionally used for heating or cooling the cellulose web 11.
  • the last tower 43 is used only for cooling, so the cellulose web 11 to avoid static charges in the Sheeter 50 before entering sheeter 50 cooled a few degrees below room temperature.
  • the cross cutter 50 contains a reject gate in a standardized form 51 and a changeover switch 52 for bale or stack operation.
  • FIG. 2 shows schematically a second embodiment of a cellulose dewatering machine 10 'according to the invention with a Screen dewatering device 20 ', a press device 30 ', a drying device 45 and a connected Cross cutter 50 '.
  • This second embodiment differs differs from the first from FIG. 1 only in that the Drying device 45 for the cellulose web 11 'a horizontally arranged drying channel with three sections 46, 47 and 48, the first section 46 for drying with hot air, the second section 47 for heating or cooling and the third section 48 for cooling the pulp web 11 ' is provided.
  • a pulp dewatering machine with a trimmed working width from Z. B. 2800 mm and four benefits from z. B. 4 x 700 mm width, 1000 mm length, with batch operation with a stack height of approx. 1400 mm and a speed of z. B. 150 m / min a maximum theoretical performance of 672,000 tons per year, based on continuous operation with 350 working days a year.
  • extension cycle time is approximately three minutes for each four benefits. This could be used, for example, for two film shrinking furnaces connected to the system for stack packaging become.
  • the extension cycle time is approximately two minutes. she lies thus fully in line with, for example, four bale lacing machines to be able to connect on wire or plastic basis.
  • a change of the executed variants from bale to Batch operation and vice versa can be done at any time without reduction the speed can be done by using the cross cutter to gap is driven.
  • the sheets that are removed thereby pass through the reject gate into a dissolving tank underneath, where, together with the edge strips of the pulp web of the outer slitter cut and into the machine chest be pumped back.

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  • Paper (AREA)
EP04009499A 2003-05-07 2004-04-22 Appareil pour l'essorage de la pâte de bois Withdrawn EP1477609A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE20307055U 2003-05-07
DE20307055U DE20307055U1 (de) 2003-05-07 2003-05-07 Zellstoffentwässerungsmaschine

Publications (2)

Publication Number Publication Date
EP1477609A2 true EP1477609A2 (fr) 2004-11-17
EP1477609A3 EP1477609A3 (fr) 2004-12-08

Family

ID=27619063

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04009499A Withdrawn EP1477609A3 (fr) 2003-05-07 2004-04-22 Appareil pour l'essorage de la pâte de bois

Country Status (5)

Country Link
US (1) US20040221979A1 (fr)
EP (1) EP1477609A3 (fr)
JP (1) JP4048441B2 (fr)
CA (1) CA2465742A1 (fr)
DE (1) DE20307055U1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1715099A1 (fr) * 2005-04-19 2006-10-25 Voith Patent GmbH Dispositif pour la fabrication d'une bande fibreuse
WO2010127858A1 (fr) * 2009-05-08 2010-11-11 Kurt Schramm Ligne de fabrication
WO2015086294A1 (fr) * 2013-12-13 2015-06-18 Voith Patent Gmbh Procédé et machine de production de feuilles de cellulose

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6245053B2 (ja) * 2014-04-23 2017-12-13 王子ホールディングス株式会社 パルプシートの製造方法
JP6722494B2 (ja) * 2016-04-11 2020-07-15 デュプロ精工株式会社 古紙再生処理装置
JP6477837B2 (ja) * 2017-11-15 2019-03-06 王子ホールディングス株式会社 パルプシートの製造方法

Family Cites Families (20)

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Publication number Priority date Publication date Assignee Title
US1821198A (en) 1929-04-01 1931-09-01 Mead Paperboard Corp Paper manufacture
DE587553C (de) * 1931-12-30 1933-11-10 Beloit Iron Works Rundsiebpapiermaschine
US2871770A (en) 1956-04-17 1959-02-03 Jesse A Jackson Paper making machine
US3291680A (en) * 1963-10-17 1966-12-13 Beloit Corp Cylinder machine press assembly
US3318018A (en) * 1964-12-31 1967-05-09 Beloit Corp Cooling and protective means for printed web material
SE313242B (fr) * 1965-05-21 1969-08-04 Karlstad Mekaniska Ab
FI58367C (fi) * 1969-03-03 1981-01-12 Tampella Oy Ab Kombinerad pappersmaskin
FR2305539A1 (fr) 1975-03-26 1976-10-22 Eternit Rech Tech Machine continue, pour la fabrication par filtrage-drainage, de feuilles ou de tubes, utilisant les ondes ultra-sonores
DE3533274C3 (de) 1985-09-18 1995-09-21 Bst Servo Technik Gmbh Vorrichtung zur Bahnkantenerfassung und Bahnlaufregelung von im Durchlauf geführten Warenbahnen
DE4105978C2 (de) * 1991-02-26 1997-01-30 Escher Wyss Gmbh Schutzhaube für Walzen
FI102624B1 (fi) 1994-06-23 1999-01-15 Valmet Corp Menetelmä ja laite paperiradan tai vastaavan kuivatuksessa tai jäähdytyksessä
SE9500196D0 (sv) * 1995-01-20 1995-01-20 Sture Kristroem Torkningsanordning
FI102623B (fi) 1995-10-04 1999-01-15 Valmet Corp Menetelmä ja laite paperikoneessa
DE19534812A1 (de) 1995-09-20 1997-03-27 Pwa Hygienepapiere Gmbh Mehrlagiges bahnförmiges Tissueprodukt mit ungeprägter Mittellage, seine Herstellung und Einrichtung zu seiner Erzeugung
FI107746B (fi) * 1996-02-23 2001-09-28 Metso Paper Inc Menetelmä paperiradan tai vastaavan kalanteroinnissa
SE9804347D0 (sv) * 1998-12-16 1998-12-16 Valmet Corp Method and apparatus for calendering paper
DE19912500A1 (de) 1999-03-19 2000-09-21 Voith Sulzer Papiertech Patent Verfahren und Vorrichtung zum Bestimmen von Eigenschaften einer laufenden Materialbahn
FI991096A7 (fi) 1999-05-12 2000-11-13 Valmet Corp Menetelmä paperin, erityisesti hienopaperin, valmistamiseksi ja paperi konelinja erityisesti hienopaperin valmistamista varten
DE19950710B4 (de) 1999-10-21 2005-08-18 Vits Verwaltungs Gmbh Anlage zum Trocknen und Kühlen und zum anschließenden Aufwickeln oder Querschneiden einer Papierbahn
DE10024358A1 (de) * 2000-05-17 2001-11-22 Voith Paper Patent Gmbh Trockenpartie

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1715099A1 (fr) * 2005-04-19 2006-10-25 Voith Patent GmbH Dispositif pour la fabrication d'une bande fibreuse
WO2010127858A1 (fr) * 2009-05-08 2010-11-11 Kurt Schramm Ligne de fabrication
WO2015086294A1 (fr) * 2013-12-13 2015-06-18 Voith Patent Gmbh Procédé et machine de production de feuilles de cellulose

Also Published As

Publication number Publication date
US20040221979A1 (en) 2004-11-11
CA2465742A1 (fr) 2004-11-07
JP2004332196A (ja) 2004-11-25
JP4048441B2 (ja) 2008-02-20
DE20307055U1 (de) 2003-07-17
EP1477609A3 (fr) 2004-12-08

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