EP0141227A2 - Séchoir vertical - Google Patents

Séchoir vertical Download PDF

Info

Publication number
EP0141227A2
EP0141227A2 EP84111229A EP84111229A EP0141227A2 EP 0141227 A2 EP0141227 A2 EP 0141227A2 EP 84111229 A EP84111229 A EP 84111229A EP 84111229 A EP84111229 A EP 84111229A EP 0141227 A2 EP0141227 A2 EP 0141227A2
Authority
EP
European Patent Office
Prior art keywords
air
web
treatment
shaft
guide box
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
Application number
EP84111229A
Other languages
German (de)
English (en)
Other versions
EP0141227A3 (en
EP0141227B1 (fr
Inventor
Gerold Fleissner
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.)
Truetzschler Nonwovens GmbH
Original Assignee
Fleissner 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 Fleissner GmbH filed Critical Fleissner GmbH
Publication of EP0141227A2 publication Critical patent/EP0141227A2/fr
Publication of EP0141227A3 publication Critical patent/EP0141227A3/de
Application granted granted Critical
Publication of EP0141227B1 publication Critical patent/EP0141227B1/fr
Expired 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
    • F26B21/00—Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects
    • F26B21/02—Circulating air or gases in closed cycles, e.g. wholly within the drying enclosure
    • 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
    • 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
    • F26B3/283—Drying solid materials or objects by processes involving the application of heat by radiation, e.g. from the sun in combination with convection

Definitions

  • the invention relates to a drying chute, e.g. Predrying shaft or hot-flue construction, for the heat treatment of a vertically guided material web having a certain width, with air guide boxes arranged on both sides of the material web and having blow-out openings in the direction of the product web, to which a radial fan for circulating the dry air is assigned.
  • a drying chute e.g. Predrying shaft or hot-flue construction
  • air guide boxes arranged on both sides of the material web and having blow-out openings in the direction of the product web, to which a radial fan for circulating the dry air is assigned.
  • a device of this type is known from DE-OS 23 20 479.
  • nozzle boxes are arranged transversely on both sides - subsequently offset from one another - which have their blow-in openings on the side end of the shaft.
  • a radial fan assigned to each nozzle box group is used to circulate the treatment air, the axis of rotation of which is oriented perpendicular to the web.
  • the treatment air is recirculated via channels arranged parallel to the nozzle boxes, so that there is a specific air circuit for each fan.
  • the motors for driving the fans are always arranged on the side on which the nozzle boxes are provided for the other side of the web. In this way, the drying shaft is narrow, although the drying shaft is very wide due to the alignment of the fans with their axis perpendicular to the web.
  • Drying shafts are generally only required for the pre-drying of a product provided with a dyeing liquid, for example, so that the web of material no longer comes into contact with any guiding elements when the drying process begins.
  • a drying shaft is thus above a foulard, for example, from the last deflecting or squeezing roller of which the web runs directly upwards into the drying shaft.
  • the task of such a predrying shaft is to achieve rapid heating and evaporation of the liquid.
  • a mere nozzle ventilation is not enough.
  • the invention has for its object to find a drying shaft for pre-drying a web, in which, in addition to the radiant heaters, a recirculation system is also provided, which ensures the rapid removal of the heated moist air without fluttering the web.
  • the outer construction of the drying shaft should not be much deeper than is necessary to accommodate the infrared heating elements and an air supply. This means that several such drying shafts can be placed directly next to one another and do not hinder motors, fan boxes or the like.
  • a construction is to be found in which, in addition to a favorable energy balance, the smallest possible outer surface of the drying chute and nevertheless a rapid heating up of the material web and a rapid removal of the vaporized liquid is made possible.
  • the infrared heating rods are also arranged in the drying shaft across the width of the web on both sides of the web. Because of this construction, the device is only a little deeper than is necessary for heating the web by means of the infrared heating elements. The greater depth is achieved solely by the air supply boxes required on both sides. The return of the treatment air accelerated by the fan takes place on the front sides of the drying shaft to the side of the web width, so that the depth of the drying shaft only has to be as wide as the diameter of the fan, of course taking into account the air volume that the air guide box has on the respective web side must record.
  • the vertically installed drying shaft has an all-round insulated housing 1 which has the inlet slot 2 on the underside and the outlet slot 3 vertically above it.
  • the material web 4 comes from a foulard arranged below the drying shaft, but not shown, and is above the shaft along the deflecting roller 5 to the next treatment unit, e.g. another drying shaft.
  • the web 4 is dried on both sides with radiation energy and partly also with a convection system.
  • Infrared heating rods 6, which are arranged at a distance from one another, are responsible for the radiation energy, between which and the web 4 there is sufficient space to be able to move shielding depressions 7 in front of the infrared heating rods 6.
  • the shielding troughs 7 are arranged in a gap with the infrared heating elements 6 arranged one above the other, while they are pushed in front of the heating elements 6 when the web 4 is stationary and thus the web 4 is protected from the burning rays.
  • a dry air system serves to remove the moist air generated by the radiation energy along the surface of the web 4.
  • the heated to prevent cooling of the web 4 dry air passes through parallel to the web 4 slots 8, which are inclined upwards in the direction of the goods transport, between the infrared heating rods 6 and then between the respective shielding troughs 7 and then obliquely on the web 4.
  • By aligning the slots 8 upward in the transport direction of the web an upward air flow is generated on the web, which ensures the rapid evacuation of the resulting vapor layer.
  • an air extraction space 9 with a fresh air supply pipe 30 is provided on the right and left of the web 4, which is separated from the treatment area of the drying shaft by a screen cover 10.
  • the essential circulating air is extracted through this air outflow space 9, since the goods outlet slot 3 is narrowly delimited by metal sheets.
  • the air suction space 9 extends along the entire width of the drying shaft and has a radial fan 11, 12 on its end faces outside the width of the web, which generates a negative pressure in the air suction space 9.
  • the air suction chamber 9 is arranged according to FIG. 3 on both sides of the web 4 and extends conically widening from the center of the drying shaft to the fan suction chamber 13, into which the two air suction rooms 9 open from both sides of the web 4.
  • the fan suction space 13 is already arranged outside the treatment width of the drying shaft in the air return area 14 provided on the front side of the drying shaft.
  • This air return area 14 consists of two air return channels 15, 16, which emerge from FIG. 3 when viewed from above.
  • the air return channels 15, 16 are arranged on the inside of the outer housing 1 and leave between them a free space 17, which is provided for free access to the actual drying area in the drying shaft and through a door 18 is closed from the outside.
  • the fan suction chamber 13 and the fan 11, 12 with the fan chamber 11 ', 12' and the air repelling pipe 31, 32 are thus arranged above the air return region 14.
  • the respective fan 11, 12 blows the air from above into the air return channels 15, 16 via a screen plate 19 which can also be seen in FIG.
  • the dry air then passes laterally into the air storage space 20, 21, which is limited at the top by a sieve-shaped baffle plate 22, 23.
  • the heating unit 24, 25 is arranged above the baffle 22, 23 and, like the air storage space 20, 21, extends over the entire width of the drying area of the drying shaft.
  • the heating device 24, 25 is followed on each side of the web 4 by the respective air guide box 26, 27 which guides the heated treatment air to the slots 8.
  • the air duct 26, 27 is b-wide in the area of the heating device 24, 25 and narrow in the area of the air return spaces 9, i.e. it extends conically upwards.
  • the two air return areas 14 on both sides of the drying shaft are half bounded by a hinged door 28, 29 in the free flow cross section.
  • This door is closed when the device is operating, i.e. it is aligned vertically. If the web 4 is at a standstill, it is expedient to supply cooling air to the infrared heating elements 6 instead of heated circulating air. This is brought about by the doors 28, 29 swinging open and the treatment air accelerated by the fan 11, 12, bypassing the heating device 24, 25 flows immediately into the air guide box 26, 27 and thus to the infrared heating elements 6 via the slots 8. At the same time, the shielding troughs 7 will move in front of the infrared heating elements 6, so that burning of the material web is prevented with certainty.
  • the treatment air circulated by the fans 11, 12 not only flows from the storage spaces 20, 21 through the heating device 24, 25 into the treatment area, but also through slots i 'arranged below the heating device 24, 25 onto the Web 4.
  • This treatment air has not yet flowed through the heating device again, but it still has enough heat to advantageously influence the drying process or the removal of the moist air.

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)
EP84111229A 1983-09-23 1984-09-20 Séchoir vertical Expired EP0141227B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3334381 1983-09-23
DE19833334381 DE3334381A1 (de) 1983-09-23 1983-09-23 Trockenschacht

Publications (3)

Publication Number Publication Date
EP0141227A2 true EP0141227A2 (fr) 1985-05-15
EP0141227A3 EP0141227A3 (en) 1986-01-08
EP0141227B1 EP0141227B1 (fr) 1987-11-04

Family

ID=6209819

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84111229A Expired EP0141227B1 (fr) 1983-09-23 1984-09-20 Séchoir vertical

Country Status (3)

Country Link
US (1) US4658512A (fr)
EP (1) EP0141227B1 (fr)
DE (2) DE3334381A1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0336120A2 (fr) * 1988-04-07 1989-10-11 VITS-Maschinenbau GmbH Dispositif de traitement thermique et/ou de séchage d'une bande de matière en mouvement
EP0437272A1 (fr) * 1990-01-11 1991-07-17 FLEISSNER Maschinenfabrik AG Séchoir vertical
EP0470418A2 (fr) * 1990-08-04 1992-02-12 Agfa-Gevaert AG Séchoir pour un appareil de développement de film
EP0607560A1 (fr) * 1992-12-24 1994-07-27 PLATSCH, Hans G. Cadre pour sécheur à rayonnement et sécheur à rayonnement muni d'un tel cadre
EP1171744A1 (fr) * 1999-04-20 2002-01-16 Megtec Systems, Inc. Secheur a infrarouge comportant un volet d'evacuation d'air

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03186186A (ja) * 1989-09-08 1991-08-14 W R Grace & Co 赤外線乾燥装置
US5867920A (en) * 1997-02-05 1999-02-09 Megtec Systems, Inc. High speed infrared/convection dryer
CN100349737C (zh) * 2005-06-02 2007-11-21 郝强 一种卧式圆网高温烘箱
US20080184589A1 (en) * 2007-02-02 2008-08-07 The Shivvers Group, Inc., An Iowa Corporation High efficiency drier with heating and drying zones

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE94150C (fr) *
DE2320479A1 (de) * 1973-04-21 1974-11-07 Vepa Ag Vorrichtung wie trockenschacht oder hotflue
US4257172A (en) * 1979-01-22 1981-03-24 Olympic Infra-Dry Inc. Combination forced air and infrared dryer

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3590495A (en) * 1969-05-02 1971-07-06 Goodyear Tire & Rubber Dryer or heater with shielding means
US3900959A (en) * 1973-05-07 1975-08-26 Minnesota Mining & Mfg Combined infra-red and air flow drying for photographic film
FR2391437A1 (fr) * 1977-05-18 1978-12-15 Air Ind Perfectionnements apportes aux installations de traitement d'un produit en milieu gazeux
US4336279A (en) * 1978-07-04 1982-06-22 Metzger Wesley A Apparatus and process for drying and curing coated substrates

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE94150C (fr) *
DE2320479A1 (de) * 1973-04-21 1974-11-07 Vepa Ag Vorrichtung wie trockenschacht oder hotflue
US4257172A (en) * 1979-01-22 1981-03-24 Olympic Infra-Dry Inc. Combination forced air and infrared dryer

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0336120A2 (fr) * 1988-04-07 1989-10-11 VITS-Maschinenbau GmbH Dispositif de traitement thermique et/ou de séchage d'une bande de matière en mouvement
EP0336120A3 (fr) * 1988-04-07 1991-06-05 VITS-Maschinenbau GmbH Dispositif de traitement thermique et/ou de séchage d'une bande de matière en mouvement
EP0437272A1 (fr) * 1990-01-11 1991-07-17 FLEISSNER Maschinenfabrik AG Séchoir vertical
EP0470418A2 (fr) * 1990-08-04 1992-02-12 Agfa-Gevaert AG Séchoir pour un appareil de développement de film
EP0470418A3 (en) * 1990-08-04 1992-08-26 Agfa-Gevaert Ag Drier for a film developing apparatus
EP0607560A1 (fr) * 1992-12-24 1994-07-27 PLATSCH, Hans G. Cadre pour sécheur à rayonnement et sécheur à rayonnement muni d'un tel cadre
US5502788A (en) * 1992-12-24 1996-03-26 Platsch; Hans G. Radiant-heat drier strip with cooling air distributor element
EP1171744A1 (fr) * 1999-04-20 2002-01-16 Megtec Systems, Inc. Secheur a infrarouge comportant un volet d'evacuation d'air
EP1171744B1 (fr) * 1999-04-20 2014-04-23 Megtec Systems, Inc. Sécheur à infrarouge comportant un volet d'évacuation d'air

Also Published As

Publication number Publication date
US4658512A (en) 1987-04-21
EP0141227A3 (en) 1986-01-08
EP0141227B1 (fr) 1987-11-04
DE3334381A1 (de) 1985-04-11
DE3467241D1 (en) 1987-12-10

Similar Documents

Publication Publication Date Title
DE68902548T2 (de) Trockner fuer eine warenbahn.
EP0141227B1 (fr) Séchoir vertical
EP0266684A2 (fr) Méthode et sécheur comprenant un dispositif de régénération d'une cartouche de séchage chargée d'humidité
DE2613963C2 (de) Textilwärmebehandlungsvorrichtung insbesondere Spannrahmen
EP0427122B1 (fr) Dispositif de séchage des feuilles, respectivement des pièces détachées planes
EP1010959B1 (fr) Procédé et dispositif de traitement thermique d'une bande en déplacement continu par soufflage de vapeur
DE3543248A1 (de) Vorrichtung zum trocknen von holz
DE1460709C3 (de) Siebtrommeltrockner Ausscheidung aus 1281992
DE2735075A1 (de) Vorrichtung zum trocknen einer kontinuierlich bewegten warenbahn
EP0063642B1 (fr) Dispositif pour le séchage par air chaud de matières textiles
DE1191690B (de) Durchlauftrocknungsgeraet zum Trocknen fotografischer Schichttraeger
DE2115640C3 (de) Trocknungsanlage zum trocknen von einseitig offenen behaeltern, z.b. dosen
DE4416959A1 (de) Reflow-Lötanlage
EP0486712A1 (fr) Installation pour le traitement superficiel d'articles
EP0303887B1 (fr) Dispositif de traitement thermique d'une bande de matière
DE9418235U1 (de) Vorrichtung, insbesondere Wärmeschrank
EP0458219A1 (fr) Dispositif pour le séchage du bois
DE2452207C3 (de) Vorrichtung zum Trocknen von Textilbahnen
EP0437272A1 (fr) Séchoir vertical
DE3727651A1 (de) Vorrichtung zur waermebehandlung von warenbahnen, insbesondere textilbahnen
DD207113A3 (de) Heissmuldenmangel, insbesondere mehrmuldenmangel
DE1635122A1 (de) Vorrichtung zur Behandlung von Guetern mit gas- oder dampffoermigen Medien
DE69111069T2 (de) Apparat und verfahren zur vorhangbeschichtung.
EP0572062A1 (fr) Dispositif de traitement de produits agricoles et horticoles
DE1604873C3 (de) Siebwalzentrockner zum Trocknen eines auf einen durchlässigen Trägerstoff flüssig aufgetragenen Schichtstoffes

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

Designated state(s): BE DE FR GB IT

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Designated state(s): BE DE FR GB IT

17P Request for examination filed

Effective date: 19860113

17Q First examination report despatched

Effective date: 19860917

17Q First examination report despatched

Effective date: 19870205

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: FLEISSNER MASCHINENFABRIK AG

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): BE DE FR GB IT

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED.

Effective date: 19871104

Ref country code: FR

Free format text: THE PATENT HAS BEEN ANNULLED BY A DECISION OF A NATIONAL AUTHORITY

Effective date: 19871104

Ref country code: BE

Effective date: 19871104

REF Corresponds to:

Ref document number: 3467241

Country of ref document: DE

Date of ref document: 19871210

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)
EN Fr: translation not filed
PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

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

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 19900620

Year of fee payment: 7

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 19901024

Year of fee payment: 7

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Effective date: 19910920

GBPC Gb: european patent ceased through non-payment of renewal fee
PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Effective date: 19920602