EP1022136B1 - Dispositif de conditionnement d'une bande de papier - Google Patents

Dispositif de conditionnement d'une bande de papier Download PDF

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Publication number
EP1022136B1
EP1022136B1 EP00100099A EP00100099A EP1022136B1 EP 1022136 B1 EP1022136 B1 EP 1022136B1 EP 00100099 A EP00100099 A EP 00100099A EP 00100099 A EP00100099 A EP 00100099A EP 1022136 B1 EP1022136 B1 EP 1022136B1
Authority
EP
European Patent Office
Prior art keywords
dryer
paper web
moisturising
spray
temperature
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 - Lifetime
Application number
EP00100099A
Other languages
German (de)
English (en)
Other versions
EP1022136A3 (fr
EP1022136A2 (fr
Inventor
Michael Motzke
Bruno Brischler
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.)
Baldwin Germany GmbH
Original Assignee
Baldwin Germany GmbH
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 Baldwin Germany GmbH filed Critical Baldwin Germany GmbH
Publication of EP1022136A2 publication Critical patent/EP1022136A2/fr
Publication of EP1022136A3 publication Critical patent/EP1022136A3/fr
Application granted granted Critical
Publication of EP1022136B1 publication Critical patent/EP1022136B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F23/00—Devices for treating the surfaces of sheets, webs, or other articles in connection with printing
    • B41F23/04—Devices for treating the surfaces of sheets, webs, or other articles in connection with printing by heat drying, by cooling, by applying powders
    • B41F23/0483—Drying combined with cooling
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F23/00—Devices for treating the surfaces of sheets, webs, or other articles in connection with printing
    • B41F23/02—Devices for treating the surfaces of sheets, webs, or other articles in connection with printing by dampening

Definitions

  • the invention relates to a device for conditioning a preferably freshly printed paper web with a dryer and a rewet, wherein the dryer a Heating zone, temperature maintenance zone and cooling zone and the Remoistening device above and below the Transport level of the paper web arranged, with Humidifier acted upon spray nozzles and these have receiving spray chambers.
  • a device of this type is known from DE 44 05 332 A1.
  • a tunnel housing passed through by the paper web, which has two successive departments of, from the dryer-free department as a remoistening device with above and below the Transport level of the paper web arranged, with Humidifying agent containing spray nozzles containing Chambers is formed and the department close to and arranged below the transport plane of the paper web, Air knives to be doctored with compressed air for doctoring off the Paper web entrained solvents is provided. That to the Dryer attached tunnel housing requires comparatively much Space between dryer and chill roll stand.
  • the cooling zone The known dryer usually contains cooling air act on blowing nozzles. Because the heat capacity of the air comparatively is low, this is a comparatively large Space required, apart from the construction effort.
  • This object is achieved in that the immediately adjacent to the temperature holding zone, in the Dryer integrated cooling zone of the dryer one for rewetting and cooling the paper web (2) serving humidifier (8), the spray nozzles (10) one for the rewetting required amount of liquid exceeding amount of liquid can be fed.
  • the amount of fountain solution supplied to the spray nozzles is greater than the rewet amount is ensured that in addition to the Remoistening also a reliable cooling of the paper web he follows. Because the rewet device integrates with the dryer is, the distance between the dryer and a this downstream chill roll stand comparatively small be, resulting in a relatively short overall arrangement results. Even the dryer itself can be used as a result of coming liquid cooling of the paper web comparatively be compact.
  • the moistening of the paper web use namely, has a liquid compared to the heat capacity of air comparatively high heat capacity, so that already a comparatively small amount of dampening solution to accomplish sufficient reliable cooling of the web.
  • An advantageous measure may be that the spray nozzles with dampening solution and compressed air for blowing can be acted upon are. As a result, advantageously a good distribution the dampening solution and in particular a high penetration of dampening solution achieved.
  • Another, particularly preferable, measure may be that the spray chambers in a respective associated suction are arranged, which by means of at least one associated, Extractable in the dryer exhaust blower are. This results in the spray chambers flanking, one and exit-side ducts, which provide a reliable discharge ensure an expected, large volume of air. There The exhaust ducts are sucked, it is ensured that no Air can escape to the outside. Air squeegee can therefore either completely omitted or dimensioned comparatively weak, which is beneficial to avoiding effort and avoidance a railway disturbance. At the same time this is thereby Ensure that no moisture escapes to the outside. A condensation outside the humidifier is therefore not to be feared. Because the blower (s) in the dryer blow out, also results in a comparatively simple construction. In addition, this measure also proves to be energetically favorable, since the blown air already tempered is.
  • each suction fan at least one cooler be upstream. This will achieve that from the air entrained oil and water are excreted, causing the Eradication eased.
  • the drawing described below shows a schematic longitudinal section through one with a Humidifier provided dryer.
  • the dryer 1 shown in the drawing between the last printing unit of a non-illustrated Web-fed rotary printing press and also not closer shown cooling roller stand is arranged, has three in Running direction of the paper web 2 zones arranged one behind the other, namely, a heating zone 3, a temperature holding zone 4 and a Cooling zone 5. Each zone is a compartment inside the housing of the Drier 1 assigned. Between successive Compartments are partitions 6 are provided.
  • the cooling zone 5 associated compartment contains a as a whole with 8 designated moistening, the Cooling and remoistening of the paper web 2 is used in the upstream zones due to the local there Heat exposure Moisture loses.
  • the paper web is the second with a dampening solution, preferably in the form of water, applied.
  • the paper web 2 supplied dampening solution is so large that the paper web 2 to the desired Temperature is cooled and the moisture content of the Paper web 3 is simultaneously raised to the desired level becomes.
  • the cooling takes place by evaporation of liquid, wherein the heat of vaporization of the paper web 2 is withdrawn.
  • the vaporizing liquid gives but no rewetting.
  • the total amount of the paper web 2 supplied liquid consists therefore of a remindbefeuchtungsanteil and a Supplement for the cooling.
  • the setting of the total liquid quantity takes place Accordingly, depending on the moisture requirement of Paper web 2 and the desired cooling temperature difference.
  • Simple cases can be a function of the temperature the paper web 2 in front of the moistening device 8, i. expedient when leaving the temperature maintenance zone 4, and the Web speed and paper type control be provided. But it would also be possible to have a regulation the additionally or alternatively still the humidity and / or Temperature of the paper web 2 after the moistening device 8 and / or the temperature in the cooling zone 5 as actual values received.
  • the moistening device 8 contains above and below the transport plane of the paper web 2 provided, here roof or V-shaped spray chambers 9, each one about the whole width of the paper web 2 continuous row of Spray nozzles 10 included.
  • roof or V-shaped spray chambers 9 each one about the whole width of the paper web 2 continuous row of Spray nozzles 10 included.
  • the spray nozzle row extends appropriate over the entire width of the dryer and is through Shutdown of external nozzles to the paper web width customizable.
  • the spray nozzles 10 are in the example shown with Dampening solution, preferably in the form of water, and compressed air subjected to the blowing out and atomizing of the dampening solution, as indicated by the supply lines 11, 12. These are provided with switching elements 13, 14 in the form of valves, etc., which are controllable here by means of a control device 15, the actual value inputs for the temperature of the paper web 2 before Humidification, the temperature of the cooling zone 5 and the humidity and temperature of the paper web 2 after moistening. These actual value inputs are via signal lines with associated sensors, here the temperature sensors 16, 17 and a combined temperature and humidity sensor 30 connected.
  • Temperature sensor 16 is in the output range of Temperature holding zone 4 is arranged near the paper web 2.
  • associated temperature sensor 17 is in the cooling zone 5 outside the humidifier 8 i arranged.
  • the combined temperature and Humidity sensor 30 is in the area of the outlet of the dryer 1 arranged.
  • the controller 15 is still with another, beneficial with the printing press coupled input 31 for the web speed and with an input option 32 for the input of fixed parameters, like the paper type.
  • the spray chambers 9 are so from a respectively assigned, Roof or V-shaped suction chamber 18 overlapped or understood that the inlet and outlet side ducts 19 result. These are extracted individually or together. in the example shown here is one in the field of remote Corner of each suction chamber 18 arranged exhaust fan 20th provided that the respectively associated suction chamber 18th sucks and in the cooling zone 5 associated compartment of the Drier 1 blows out. As a result, the dryer 1 tempered Supplied with air, so that sucked from the outside, by arrows 21 indicated fresh air can be reduced accordingly, which has a favorable effect on the energy requirement.
  • Each exhaust fan 20 is preceded by a radiator 22.
  • the dryer 1 is therefore by the blower 20 supplied comparatively unloaded air.
  • the means of the radiator 22 condensate is discharged via a condensate drain line 23 dissipated.
  • the secluded Water can to avoid disposal of the nozzles 10th be fed again.
  • the water outlet 33 of the Wasserabscheiders 24 returned to the supply line 11 be.
  • the confluence is conveniently upstream from the switching element 13.
  • To one Dripping from the lower ends of the walls of the upper Preventing chambers are at the lower ends of the walls the upper spray chamber 9 and suction 18 drip 27 attached, which expediently in not shown here Way be connected to the condensate drain line 23 can.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Supply, Installation And Extraction Of Printed Sheets Or Plates (AREA)
  • Paper (AREA)

Claims (10)

  1. Dispositif de conditionnement d'une bande de papier (2) de préférence fraíchement imprimée, comprenant un sécheur (1) et un dispositif de réhumectage, ledit sécheur (1) présentant une zone d'échauffement (3), une zone de maintien de température (4) et une zone de refroidissement (5) et ledit dispositif de réhumectage présentant des buses de pulvérisation (10) et des chambres de pulvérisation (9) recevant ces dernières, lesdites buses de pulvérisation étant disposées au-dessus et au-dessous du plan de transport de la bande de papier (2), étant dirigées vers celle-ci et pouvant être alimentées en liquide d'humectage, caractérisé par le fait que la zone de refroidissement (5) du sécheur (1) qui est directement contiguë à la zone de maintien de température et intégrée dans le sécheur (1) comprend un dispositif d'humectage (8) qui sert au réhumectage et au refroidissement de ladite bande de papier (2) et dont les buses de pulvérisation (10) peuvent être alimentées en une quantité de liquide qui dépasse la quantité de liquide nécessaire au réhumectage.
  2. Dispositif selon la revendication 1, caractérisé par le fait que la quantité de liquide d'humectage amenée aux buses de pulvérisation (10) peut être réglée au moyen d'un dispositif de réglage (15) au moins en fonction de la vitesse de la bande de papier (2), du type du papier et de la température de la bande de papier (2) au sortir de la zone de maintien de température (4).
  3. Dispositif selon la revendication 2, caractérisé par le fait que la quantité de liquide d'humectage amenée aux buses de pulvérisation (10) peut être réglée au moyen dudit dispositif de réglage (15) également en fonction de la température régnant dans la zone de refroidissement (5) du sécheur (1) et/ou de l'humidité et/ou de la température de la bande de papier (2) après le dispositif d'humectage (8).
  4. Dispositif selon l'une des revendications précédentes, caractérisé par le fait que les buses de pulvérisation (10) peuvent être alimentées en liquide d'humectage et en air comprimé destiné à évacuer le liquide d'humectage.
  5. Dispositif selon l'une des revendications précédentes, caractérisé par le fait que les chambres de pulvérisation (9) sont disposées dans une chambre à aspiration (18) respectivement associée de laquelle peut être aspiré au moyen d'au moins un ventilateur aspirateur (20) associé qui souffle dans le sécheur (1).
  6. Dispositif selon la revendication 5, caractérisé par le fait qu'au moins un refroidisseur (22) est disposé en amont de chaque ventilateur aspirateur (20).
  7. Dispositif selon la revendication 6, caractérisé par le fait que chaque refroidisseur (22) est relié par une conduite d'écoulement de condensat (23) à un évaporateur d'huile (25) qui est disposé dans le sécheur (1), de préférence dans la région de la zone de maintien de température (4) du sécheur (1), et qu'au moins un séparateur d'eau (24) est disposé en aval de chaque refroidisseur (22).
  8. Dispositif selon l'une des revendications précédentes 5 à 7, caractérisé par le fait que des racles à air (26) qui peuvent être alimentées en air comprimé sont prévues à l'entrée et à la sortie des chambres à aspiration (18).
  9. Dispositif selon l'une des revendications précédentes, caractérisé par le fait que des collecteurs de gouttes (27) sont disposés aux extrémités inférieures des parois de la chambre supérieure de pulvérisation (9) et de la chambre supérieure à aspiration (18).
  10. Dispositif selon l'une des revendications précédentes, caractérisé par le fait que les chambres de pulvérisation (9) et les chambres à aspiration (18) sont réalisées de manière à présenter une forme de toit ou bien de v.
EP00100099A 1999-01-19 2000-01-07 Dispositif de conditionnement d'une bande de papier Expired - Lifetime EP1022136B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19901801A DE19901801C2 (de) 1999-01-19 1999-01-19 Vorrichtung zum Konditionieren einer Papierbahn
DE19901801 1999-01-19

Publications (3)

Publication Number Publication Date
EP1022136A2 EP1022136A2 (fr) 2000-07-26
EP1022136A3 EP1022136A3 (fr) 2002-05-15
EP1022136B1 true EP1022136B1 (fr) 2005-09-14

Family

ID=7894635

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00100099A Expired - Lifetime EP1022136B1 (fr) 1999-01-19 2000-01-07 Dispositif de conditionnement d'une bande de papier

Country Status (5)

Country Link
US (1) US6223448B1 (fr)
EP (1) EP1022136B1 (fr)
JP (1) JP2000211111A (fr)
CN (1) CN1261027A (fr)
DE (2) DE19901801C2 (fr)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6735883B1 (en) 1999-10-15 2004-05-18 Megtec Systems, Inc. Electrostatic assisted web cooling and remoistening device
AU2001257629A1 (en) * 2000-05-17 2001-11-26 Megtec Systems, Inc. Water spray web cooling apparatus for web dryer
US6775925B2 (en) 2000-05-17 2004-08-17 Megtec Systems Inc. Water spray web cooling apparatus for web dryer
JP4496901B2 (ja) * 2004-09-13 2010-07-07 富士フイルム株式会社 被調湿物の水分調整装置
ES2261101B1 (es) * 2006-05-22 2007-12-16 Digital Internet Transport System, S.L. Procedimiento y dispositivo para acondicionamiento de papel.
JP2009020342A (ja) * 2007-07-12 2009-01-29 Kyocera Mita Corp 画像形成装置および画像形成方法
SE532624C2 (sv) * 2008-06-19 2010-03-09 Andritz Technology And Asset Management Gmbh Kylning av en cellulosamassabana
CN102673105A (zh) * 2012-05-31 2012-09-19 武汉红金龙印务股份有限公司 一种具有加湿功能的丝网印刷机
US9156283B2 (en) * 2013-06-18 2015-10-13 Ricoh Company, Ltd. Liquid dispersal in radiant dryers for printing systems
JP6372928B2 (ja) * 2013-08-30 2018-08-15 北海道特殊飼料株式会社 温度差を利用する乾燥方法、乾燥装置及び乾燥システム
CN104290440A (zh) * 2014-09-24 2015-01-21 安徽省中彩印务有限公司 一种瓦楞印刷进料端加湿装置
DE102015101858A1 (de) 2015-02-10 2016-10-20 Océ Printing Systems GmbH & Co. KG Verfahren zur Steuerung einer Substrattemperatur sowie Druckanordnung zum Bedrucken eines Substrats
DE102015104382A1 (de) * 2015-03-24 2016-09-29 Manroland Web Systems Gmbh Verfahren zur geregelten und gesteuerten Wiederbefeuchtung und Trocknung von Papierbahnen
CN112046143A (zh) * 2020-09-07 2020-12-08 安徽天翔高新特种包装材料集团有限公司 一种具有喷气加湿装置的柔版印刷机
DE102023201976A1 (de) 2022-06-10 2023-12-21 Bhs Corrugated Maschinen- Und Anlagenbau Gmbh Verfahren zum Betrieb einer Druckanlage sowie Druckanlage und Verbund aus einer solchen und einer Wellpappenanlage

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US2464119A (en) * 1947-01-07 1949-03-08 Fred C Dawson Moistening apparatus
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US2731732A (en) * 1953-05-19 1956-01-24 Crown Zellerbach Corp Apparatus and method for setting and drying moisture settable ink
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JPS61206655A (ja) * 1985-03-11 1986-09-12 Dainippon Printing Co Ltd オフセツト印刷機用乾燥装置
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Also Published As

Publication number Publication date
EP1022136A3 (fr) 2002-05-15
US6223448B1 (en) 2001-05-01
DE50011142D1 (de) 2005-10-20
CN1261027A (zh) 2000-07-26
EP1022136A2 (fr) 2000-07-26
JP2000211111A (ja) 2000-08-02
DE19901801C2 (de) 2003-12-11
DE19901801A1 (de) 2000-07-27

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