EP2056052A2 - Agencement de séchoir pour bande de matériau - Google Patents

Agencement de séchoir pour bande de matériau Download PDF

Info

Publication number
EP2056052A2
EP2056052A2 EP08105670A EP08105670A EP2056052A2 EP 2056052 A2 EP2056052 A2 EP 2056052A2 EP 08105670 A EP08105670 A EP 08105670A EP 08105670 A EP08105670 A EP 08105670A EP 2056052 A2 EP2056052 A2 EP 2056052A2
Authority
EP
European Patent Office
Prior art keywords
material web
radiators
arrangement according
web
air
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Withdrawn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
EP08105670A
Other languages
German (de)
English (en)
Other versions
EP2056052A3 (fr
Inventor
Herbert Sommer
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.)
Voith Patent GmbH
Original Assignee
Voith Patent 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 Voith Patent GmbH filed Critical Voith Patent GmbH
Publication of EP2056052A2 publication Critical patent/EP2056052A2/fr
Publication of EP2056052A3 publication Critical patent/EP2056052A3/fr
Withdrawn legal-status Critical Current

Links

Images

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B3/00—Drying solid materials or objects by processes involving the application of heat
    • F26B3/28—Drying solid materials or objects by processes involving the application of heat by radiation, e.g. from the sun
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B13/00—Machines and apparatus for drying fabrics, fibres, yarns, or other materials in long lengths, with progressive movement
    • F26B13/10—Arrangements for feeding, heating or supporting materials; Controlling movement, tension or position of materials

Definitions

  • the invention relates to a material web dryer arrangement having at least one radiation dryer and a material web path guided along the radiation dryer with a direction of movement.
  • a web dryer serves to dry a web.
  • the invention will be described below with reference to a paper web as an example of a material web. But it is also applicable to other webs that need to be dried in a similar manner.
  • WO 2005/085729 A2 shows a dryer arrangement, in which the material web is passed first to two radiation dryers and then to an air dryer. This arrangement of radiation dryer and air dryer can be repeated.
  • the radiation dryers are designed here as flat radiators.
  • EP 1 169 511 A similar embodiment is made EP 1 169 511 known. Again, the web is passed to two surface radiators and then an air dryer.
  • EP 0 916 915 B1 known design drier are arranged on both sides of the web.
  • DE 39 10 898 B4 shows a combination dryer, in which the material web is guided along a surface radiator and then through an air dryer, in which it is acted upon from both sides with warm air.
  • GB 965,095 shows a drying device in which a material web is passed over drying cylinders. Between individual deflection points, the web can be additionally dried by radiators. These radiators are designed as surface heating elements. If such a surface heating element is arranged between two sections of the web path, then it gives way to heat both sides. The radiator may also be insulated on one side against heat dissipation if it is not disposed between two sections of the web path.
  • Radiation dryers have the advantage over dryers or convection air blowers that allow relatively high heat transfer to the web to be dried.
  • the design as a surface radiator also has the advantage that the material web can be acted upon relatively uniformly with heat.
  • surface radiators have the disadvantage that a no longer negligible proportion of the energy is lost towards the back of the radiator.
  • the invention has for its object to achieve the best possible efficiency in a web dryer arrangement.
  • the radiation dryer has a plurality of cylindrical radiators, which are arranged in a plane, and the material web path extends on both sides of the plane.
  • the emitters emit electromagnetic radiation, for example IR radiation (infrared radiation) or UV radiation (ultraviolet radiation).
  • a cylindrical radiator is relatively easy to train. It emits radiant energy on all its radial sides. If the material web is now run along on both sides of the plane in which the emitters are arranged, then the power output by the emitters is absorbed almost completely by the material web, so that a good energy transfer can be achieved even without the use of reflectors and efficiency losses are reduced by the reflectors.
  • the radiators can be operated with electrical energy or with combustion energy, for example with a gas heater. If an emitter fails or is otherwise defective, then this emitter can be easy to replace, without having to replace the entire dryer assembly.
  • the axes of the radiators are arranged parallel to each other. This achieves a relatively uniform distribution of radiation in a simple manner.
  • the axes of the radiators are directed parallel to the direction of movement.
  • a plurality of groups of radiators are provided, wherein the radiators of a group are arranged in gap to radiators of another group.
  • the groups are arranged one behind the other in the direction of movement.
  • the radiators can then be arranged in a plane as before.
  • the individual regions of the material web are then optionally heated successively, depending on which group of radiators the material web passes in an instant.
  • the groups are arranged in parallel planes.
  • the radiators of one group radiate through the gaps between the radiators of the other group.
  • the axes are aligned in the direction of gravity.
  • the sections of the material web which are dried by the material web dryer arrangement also run vertically in this case. This has the advantage that the moisture released by the Material web evaporates, can flow unhindered. Moreover, it is possible in this embodiment in a simple manner to absorb waste heat and continue to use.
  • the material web path preferably has at least one non-contact deflection device between its sections on both sides of the plane. This is particularly advantageous if the material web has been provided with a coating which is to be dried by the material web dryer arrangement. In this case, the material web initially runs along one side of the plane with the radiators and is dried. Even if the coating has not yet been dried to its full extent, the material web can then be deflected by the non-contact deflection device in such a way that it can also be guided past the radiators on the other side of the plane. This makes it possible to achieve an excellent energy yield.
  • the deflection device has a deflection radius which is greater than half the distance of the sections perpendicular to the plane.
  • This embodiment has two advantages. On the one hand, the stress of the material web is smaller, because the deflection radius is greater. Nevertheless, it is possible to pass the material web relatively close to the radiators. The more dense the material web can be brought to the radiator, the better the heat transfer efficiency. On the other hand, the time required for changing the direction of the web can be extended, so that the temperature in the web, if necessary, can even out before the web is heated again by the radiator. In addition, moisture can evaporate when deflecting, which has been evaporated by the radiator.
  • the deflection device is designed as an air drying device.
  • the deflection can be added additional heat energy in the web, which further improves the drying process.
  • the deflection device comprises gas nozzles which are acted upon by gas, which is heated by means of the radiator. So you use the waste heat of the radiator to heat the deflection. Thus, in the simplest case, cooling of the material web during deflection is avoided. In the best case, an additional drying power is transmitted to the material web by the waste heat of the radiator.
  • the air drying device preferably has an air duct with a connection between supply air and exhaust air.
  • air or another gas
  • the air usually does not cool down to the ambient temperature when the material web is deflected during the deflection, so that less energy is required to bring it again to the temperature desired for drying. For this purpose, the waste heat from the spotlights is often sufficient.
  • the air duct can advantageously have an additional heating. With the additional heating, it is possible to bring the air for the deflection again to the desired temperature.
  • a web dryer assembly 1, as in Fig. 1 has a designed as an infrared radiator radiation dryer 2, which has a plurality of perpendicular to the plane of succession arranged cylindrical radiator 3.
  • the radiator 3 can be electrically operated or gas-heated.
  • the emitters 3 emit radiation 4, for example infrared radiation or ultraviolet radiation or another electromagnetic radiation with which thermal energy can be transmitted to a material web 6.
  • the radiators 3 are arranged parallel to one another in a plane 5.
  • the radiators 3 are arranged vertically, i. parallel to the direction of gravity.
  • the material web 6 is guided along a material web path. A direction of movement is indicated by an arrow 7.
  • the material web 6 is guided over a deflection roller 8 so that it can change its direction by 180 °.
  • the material web 6 is guided past the emitters 3 as close as possible, so that with the aid of the radiation 4 thermal energy can be transmitted from the emitters 3 to the material web 6.
  • the material web 6 is guided on both sides of the plane 5, so that the material web is guided past both on the front side and on the back of the radiator 3.
  • almost the entire energy radiated by the radiators 3 can be transferred to the web 6 without the use of reflectors. This leads to an increase in temperature in the web 6, which in turn leads to the moisture contained in the web 6 being able to evaporate.
  • Fig. 2 shows a modified embodiment of a material web dryer assembly 1 in plan view, wherein for explanation, the material web 6 has been removed so far that you can look at the radiator 3.
  • the cylindrical radiators 3 are each arranged at a distance 9 next to each other. This distance 9 is required in many cases to avoid overheating of the radiator 3.
  • the radiators 3 are aligned parallel to the direction of movement 7. In this case, the case could occur that the web 6 in the width direction, i. between its two edges 10, 11, is heated unevenly.
  • the radiators 3 are arranged in two groups 12, 13.
  • the radiators 3 of the two groups 12, 13 are in the same plane.
  • the radiators 3 of the group 12 are arranged so that they are located at the position of a gap 9 of the other group 13.
  • the emitters 3 of the group 12 are arranged on a holder 14 and the emitters of the group 13 on a holder 15.
  • the arrangement of the radiator 3 of a group 12 on gap 9 of the other group 13 can be achieved.
  • the emitters 3 of the two groups 12, 13 act in succession on the material web 6 in the direction of movement 7.
  • Fig. 3 shows a third embodiment of a material web dryer assembly 1 and in Fig. 3a according to the view of Fig. 2 , ie in supervision with partially removed material web 6 and in Fig. 3b in front view.
  • Fig. 3b shows that the cylindrical radiator 3 are arranged in two groups 12, 13, wherein the radiators 3 of the group 12 of a gap 9 between radiators 3 of the group 13 face.
  • the emitters 3 of the group 12 are arranged in a different plane than the emitters 3 of the group 13. This can also be achieved that the material web 6 between its edges 10, 11 is applied uniformly with thermal energy.
  • the radiators 3 of both groups 12, 13 can be arranged in this case on a holder 14. But it is also possible to arrange them on different brackets, by a lateral offset of the Brackets 14, 15 to achieve the desired orientation of the radiator 3 to gap 9.
  • Fig. 4 shows an embodiment in which a material web 6, for example a paper web, in a coating device 16 on one side 17 is provided with a coating, for example a line.
  • the side 17 faces the radiators 3. As the web 6 passes the radiators 3, it is dried on the coated side 17.
  • the deflection device 18 has a plurality of air nozzles 19, which are directed against the side 17 of the material web 6.
  • the air nozzles are supplied by a fan 20 which directs the air (or other gas) to the web 6 with sufficient pressure to support the web 6.
  • the blower 20 is arranged in the direction of gravity above the radiator 3 and takes with the aid of a guide 21 shown schematically air or - in the case of gas-heated radiators - and the heated combustion exhaust gases from the environment, which have been heated by the radiator 3. This is essentially convection, i. the radiant energy transmitted to the web 6 is practically not reduced.
  • the air ejected from the air nozzles 19 has been heated by the radiators 3, drying takes place even during the deflection in the deflection device 18.
  • the air ejected from the air nozzles 19 can carry away moisture which is still present on the side 17 of the material web 6.
  • the deflection device 18 has a deflection radius that is greater than half the distance between the two sections 22, 23 of the material web 6 on both sides of the plane 5, i. the material web 6 is initially moved away from the plane 5 by two deflection rollers 24, 25 which act on the uncoated side of the material web 6. As a result, the material web 6 is guided around the deflection device 18 with a wrap angle of at least 180 °, preferably even more, for example 300 °. Since the deflection radius is greater than half the distance between the two sections 22, 23, the load caused by the deflection of the material web 6 is kept small.
  • the deflection radius is preferably two to four times half the distance between the two sections 22, 23. Despite the large deflection radius, it is possible to pass the material web 6 relatively close to the radiators 3.
  • Fig. 5 shows a fifth embodiment of a web drying device 1, which is substantially the of Fig. 4 equivalent.
  • an air duct system 26 with an exhaust air 27 and a supply air 28 for the deflecting device 18, which is also formed in this case as an air drying device.
  • Supply air 27 and exhaust air 28 are connected by a connection 29 with each other.
  • a blower 30 is arranged to circulate the air through the deflector 18.
  • a heater 31 is arranged to bring the air in the deflector 18 to an elevated temperature when the heating by the radiator 3 is not sufficient.
  • exhaust air outlet 32 Part of the exhaust air is removed from the circuit through an exhaust air outlet 32.
  • fresh air inlet 33 fresh air is supplied.
  • the positions of exhaust air outlet 32 and fresh air inlet 33 are shown here only symbolically. The actual design depends on the circumstances, in particular the number of available fans.
  • the web 6 is first dried on its coated side 7 by the radiator 3, where it is passed relatively dense. Thereafter, the coated side 17 of the web 6 during deflection in the deflection 18 dried by air, which is ejected from the air nozzles 19. After passing through the deflecting device 18 designed as an air-drying device, the material web 6 is once again conducted past the emitters 3 in order to be dried by radiant energy.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Microbiology (AREA)
  • Textile Engineering (AREA)
  • Drying Of Solid Materials (AREA)
EP08105670A 2007-10-31 2008-10-27 Agencement de séchoir pour bande de matériau Withdrawn EP2056052A3 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE200710051963 DE102007051963A1 (de) 2007-10-31 2007-10-31 Materialbahntrockneranordnung

Publications (2)

Publication Number Publication Date
EP2056052A2 true EP2056052A2 (fr) 2009-05-06
EP2056052A3 EP2056052A3 (fr) 2009-07-01

Family

ID=40377583

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08105670A Withdrawn EP2056052A3 (fr) 2007-10-31 2008-10-27 Agencement de séchoir pour bande de matériau

Country Status (2)

Country Link
EP (1) EP2056052A3 (fr)
DE (1) DE102007051963A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105291576A (zh) * 2015-11-30 2016-02-03 天津津亚新科技有限公司 一种油墨固化装置

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB965095A (en) 1960-10-25 1964-07-29 Horace Lilburn Smith Improvements in or relating to methods and apparatus for paper drying
EP0916915B1 (fr) 1997-11-14 2001-07-11 Solaronics Process Système convecto-radiatif pour traitement thermique d'une bande continue
EP1169511A1 (fr) 1999-03-18 2002-01-09 Metso Paper, Inc. Procede et dispositif de stabilisation du deplacement d'une bande de papier dans une machine a papier ou analogue
WO2005085729A2 (fr) 2004-03-02 2005-09-15 Nv Bekaert Sa Installation de sechage pour bandes
DE3910898B4 (de) 1988-04-25 2005-11-17 Metso Paper, Inc. Verfahren zum Trocknen einer sich bewegenden Bahn und Kombinationstrockner

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1466383A (en) * 1920-09-07 1923-08-28 Rees Claude Radiator for drying apparatus
FR917276A (fr) * 1945-11-13 1946-12-31 étuve verticale
US3216638A (en) * 1962-10-23 1965-11-09 Nat Distillers Chem Corp Air cushion method and apparatus for supporting moving film sheets
GB1079677A (en) * 1965-06-14 1967-08-16 Ilford Ltd Drying moisture-containing layers
DE2540852C3 (de) * 1975-09-13 1978-03-09 Hoechst Ag, 6000 Frankfurt Verfahren und Zusatzvorrichtung für Textil-Trocknungsmaschinen zum gleichmäßigen Trocknen einer Textilbahn
NL8001944A (nl) * 1980-04-02 1981-11-02 Vries Jacob De Inrichting voor het verwarmen van een vel- of baanvormig materiaal.
DE3038686A1 (de) * 1980-10-14 1982-06-09 Franz 4834 Harsewinkel Boehnensieker Vorrichtung zum trocknen von bedruckten folienbahnen
DE4317400C2 (de) * 1993-05-25 1997-11-27 Oliver Deppe Vorrichtung zum Trocknen von bedruckten Materialbahnen
DE10044676C2 (de) * 2000-09-09 2002-08-01 Vits Maschinenbau Gmbh Wendestange

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB965095A (en) 1960-10-25 1964-07-29 Horace Lilburn Smith Improvements in or relating to methods and apparatus for paper drying
DE3910898B4 (de) 1988-04-25 2005-11-17 Metso Paper, Inc. Verfahren zum Trocknen einer sich bewegenden Bahn und Kombinationstrockner
EP0916915B1 (fr) 1997-11-14 2001-07-11 Solaronics Process Système convecto-radiatif pour traitement thermique d'une bande continue
EP1169511A1 (fr) 1999-03-18 2002-01-09 Metso Paper, Inc. Procede et dispositif de stabilisation du deplacement d'une bande de papier dans une machine a papier ou analogue
WO2005085729A2 (fr) 2004-03-02 2005-09-15 Nv Bekaert Sa Installation de sechage pour bandes

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105291576A (zh) * 2015-11-30 2016-02-03 天津津亚新科技有限公司 一种油墨固化装置

Also Published As

Publication number Publication date
DE102007051963A1 (de) 2009-05-07
EP2056052A3 (fr) 2009-07-01

Similar Documents

Publication Publication Date Title
DE3910898B4 (de) Verfahren zum Trocknen einer sich bewegenden Bahn und Kombinationstrockner
EP0712481B1 (fr) Procede et dispositif de sechage de panneaux
EP2463100B1 (fr) Machine de traitement de feuilles, notamment presse à feuilles
DE3528365C2 (fr)
EP0336120A2 (fr) Dispositif de traitement thermique et/ou de séchage d'une bande de matière en mouvement
DE10146179C1 (de) Anlage zum Trocknen von Gipskartonplatten
DE4228699C2 (de) Vorrichtung zum chargenweisen Trocknen von Schnittholz
DE102022000627A1 (de) Verfahren zum Trocknen von Platten und Trockner
EP0807591A1 (fr) Tuyère à coussin d'air et dispositif de traitement à chaud d'une bande continue avec des tuyères à coussin d'air
WO2004017004A1 (fr) Machine textile, a chauffage a air pulse, actionne par des echangeurs de chaleur chauffes au gaz
EP2056052A2 (fr) Agencement de séchoir pour bande de matériau
EP0869323A2 (fr) Sécheur d'une bande de matériau avec recirculation de gaz d'échappement
DE102007035989A1 (de) System zum Trocknen eines Substrats
EP3230671B2 (fr) Système de séchage pourvu d'une zone de séchage
DE4317400A1 (de) Vorrichtung zum Trocknen von insbesondere im Rollenoffsetdruck bedruckten Materialbahnen gekennzeichnet durch schwebende Umlenkung und mäanderförmigen Verlauf der Materialbahn
EP2056053B1 (fr) Agencement de séchoir pour bande de matériau
DE3317714A1 (de) Trockenvorrichtung fuer eine sich bewegende materialbahn
DE102008042248A1 (de) Materialbahntrockneranordnung
EP2166298B1 (fr) Séchoir pour bande de matériau
EP1640159A2 (fr) Dispositif pour le traitement thermique du revêtement de plaques d'impression offset
DE4029488A1 (de) Verfahren zum beruehrungslosen trocknen einer papier- oder kartonbahn
EP0937955A1 (fr) Système de séchage à chauffage par rayonnement
EP2192366B1 (fr) Dispositif de rayonnement d'un substrat
CH699658A1 (de) Vorrichtung zur Wärmerückgewinnung an einer Anlage zur thermischen Behandlung von Warenbahnen.
CH692758A5 (de) Haushalt-Wäschetrockner mit einem Wäschefeuchtigkeit abführenden Prozessluftkreis.

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR

AX Request for extension of the european patent

Extension state: AL BA MK RS

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR

AX Request for extension of the european patent

Extension state: AL BA MK RS

17P Request for examination filed

Effective date: 20100104

AKX Designation fees paid

Designated state(s): DE ES FI FR IT NL

17Q First examination report despatched

Effective date: 20100311

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 20140501