Nothing Special   »   [go: up one dir, main page]

EP0303887B1 - Dispositif de traitement thermique d'une bande de matière - Google Patents

Dispositif de traitement thermique d'une bande de matière Download PDF

Info

Publication number
EP0303887B1
EP0303887B1 EP88112556A EP88112556A EP0303887B1 EP 0303887 B1 EP0303887 B1 EP 0303887B1 EP 88112556 A EP88112556 A EP 88112556A EP 88112556 A EP88112556 A EP 88112556A EP 0303887 B1 EP0303887 B1 EP 0303887B1
Authority
EP
European Patent Office
Prior art keywords
bypass
fan
opening
housing
fan housing
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
EP88112556A
Other languages
German (de)
English (en)
Other versions
EP0303887A1 (fr
Inventor
Harry Gresens
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.)
Brueckner Trockentechnik GmbH and Co KG
Original Assignee
Brueckner Trockentechnik GmbH and Co KG
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 Brueckner Trockentechnik GmbH and Co KG filed Critical Brueckner Trockentechnik GmbH and Co KG
Priority to AT88112556T priority Critical patent/ATE68872T1/de
Publication of EP0303887A1 publication Critical patent/EP0303887A1/fr
Application granted granted Critical
Publication of EP0303887B1 publication Critical patent/EP0303887B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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

Definitions

  • the invention relates to a device (according to the preamble of claim 1) for the heat treatment of a continuously moving web.
  • the drying air is circulated in the individual fields by means of fans, and a bypass flap can be provided in order to redirect the drying air during production so that it no longer passes through the Nozzles are blown onto the web.
  • the bypass flap is provided in the F-shaped transition piece between the fan housing and the nozzle boxes arranged above it.
  • a bypass opening is provided in the F-shaped transition piece provided between the fan housing and the nozzle boxes arranged above it, immediately adjacent to the entrance of each nozzle box.
  • a common bypass flap for partially or completely closing the nozzle box inlet or the bypass opening is assigned to the entrance of each nozzle box and the bypass opening arranged next to it.
  • the bypass flaps can be controlled by drives in such a way that the nozzle box inlets are opened and the bypass openings are closed during normal operation of the device, while the nozzle box inlets are closed when the device is at a standstill and the bypass openings are opened so that a direct connection to the return flow space can be established when the device is at a standstill. In this way, similar operating and operating conditions result as in the previously described embodiments known from practice.
  • a bypass secondary duct is provided, the inlet opening in the vicinity of the bypass opening can be closed or opened by a special design on the one hand of this secondary duct and on the other hand the outside of the throttle valve assigned to the lower nozzle box .
  • the throttle flaps assigned to the upper and lower nozzle boxes are completely closed - by separate motor drives or a common drive - when the bypass opening is to be opened while being opened again to the same extent as the bypass opening is closed.
  • the invention is therefore based on the object, while avoiding the disadvantages of the known designs, to design a device of the type mentioned in the preamble of claim 1 such that, with a simplified design of the device, the air flowing out through the open bypass opening practically does not come into contact with the web is coming.
  • bypass opening By arranging the bypass opening to be opened or blocked by a bypass flap in the lower region of the fan housing, specifically in one side wall, this can be done this bypass opening when the bypass flap is open, the circulating air (as well as the fan housing in the lower part of the device) reaches the suction opening of the return air duct without coming into contact with the material web in the upper part of the device, which means that when the Bypass flap achieves a real bypass flow of the circulating air and any influence of the drying air on the stationary web is avoided.
  • the arrangement of the bypass opening in the lower area of the fan housing, ie on one of the inlet side of the nozzle boxes, is proportionate distant location also allows (in particular in connection with some other design features yet to be discussed) when the bypass flap is open, a pressure reduction on the inlet side of the nozzle boxes that is so large that even when the throttle valves are open, no appreciable air flow enters the nozzle boxes.
  • the solution according to the invention thus opens up the possibility of not having to close the throttle flaps when the bypass flaps are opened (thus leaving the throttle flaps in their normal operating position during bypass operation), which leads to a significantly simplified construction and control.
  • the fan housing is rectangular in a vertical longitudinal section, the bypass opening being arranged in a side wall of this fan housing, which is formed by a flat, vertically arranged surface.
  • the suction opening of a return air duct is located directly opposite the bypass opening of the adjacent treatment zone, at approximately the same height (in the lower part of the tensioning machine) and at a relatively short distance.
  • the bypass air flowing out through the bypass opening reaches the return air duct of the adjacent treatment zone in the shortest possible way (and practically without any contact with the material web located much higher than the flow path of the bypass air).
  • a tensioning machine dryer is shown as a device for the heat treatment of a continuously moving web 1, which contains a plurality of treatment zones 2, 2a, 2b, etc., which follow one another in the direction of movement of the web.
  • It contains a fan 3 which serves to promote a circulating air flow and which is driven by a motor 5 arranged outside the machine housing 4.
  • the fan 5 is arranged in a fan housing 6 which has a rectangular shape in a vertical longitudinal section (perpendicular to the plane of the drawing in FIG. 2).
  • the fan housing 6 At the top of the fan housing 6 there is an F-shaped transition piece 7, with which a group of upper nozzle boxes 8 and lower nozzle boxes 9 are connected (the individual nozzle boxes belonging to a group lie in the direction of movement of the web, ie perpendicular to the plane of the drawing) Fig.1, a short distance behind each other).
  • a return air duct 11 which is provided at one end with one or two suction openings 12a, 12b closed by a grille and at its other end via a connecting piece 13 with the suction side of the fan 3 connected is.
  • adjustable throttle valves 14, 15 are arranged, which can be pivoted about axes 14a, 15a and, depending on their position, the air flow entering the nozzle boxes 8 and 9, respectively throttle more or less.
  • the fans (e.g. 3, 3a) of adjacent treatment zones (e.g. 2, 2a) are each arranged on different long sides of the device.
  • An approximately rectangular bypass opening is provided in the side wall of the fan housing 6 facing the return air duct (e.g. 11a) of the adjacent treatment zone (e.g. 2a), which can be opened or closed by a bypass flap 16.
  • the bypass opening of the fan housing 6 which is opened or closed by the bypass flap 16 is located directly opposite (and, as can be seen from FIG. 1, at approximately the same height) to the suction opening 12a of the return air duct 11a the neighboring treatment zone.
  • the side wall of the fan housing provided with the bypass opening is replaced by a flat, vertically arranged one Surface formed.
  • the bypass flap 16 can be pivoted by means of a vertical actuating shaft 17, which is mounted in the machine housing 4, the upper end of this actuating shaft 17, which is used to engage a pneumatic or electrical actuator, being passed through the ceiling of the machine housing 4.
  • a bypass opening with a bypass flap 16, 16 ' is provided in both side walls of the fan housing 6 facing the return air ducts of the adjacent treatment zones.
  • the return air duct 11 can, as already mentioned above, also be provided on both sides with a suction opening 12a, 12b, but it is in principle also possible to make do with a single suction opening 12a.
  • bypass flaps 16 are closed and the throttle flaps 14, 15 are more or less open.
  • the drying air circulated by the fan 3 is blown through the nozzle boxes 8 and 9 onto the material web 1 and passes through the return air duct 11 back to the fan 3 (filter and heating devices can be provided in the return air duct 11 in a known manner).
  • bypass flaps 16, 16 ' open, while the throttle valves 14, 15 can remain in their operating position if desired.
  • the pressure in the fan housing 6 and in particular in the F-shaped transition piece 7 located above it completely collapses, so that practically no air flows into the nozzle boxes 8 and 9 even when the throttle valves 14, 15 are open .
  • the drying air circulated by the fan 3 rather exits through the open bypass flaps 16, 16 '(cf. arrows 18 in FIG. 2) and reaches the directly opposite suction openings 12a, 12b of the adjacent return air ducts by the shortest route. In this way there is a circulation of the bypass air in the lower area of the chamber 10, i.e. far below the web 1, which is practically not touched by the bypass air. In this way, an undesirable exposure to air of the stationary web is definitely avoided.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Drying Of Solid Materials (AREA)
  • Heating, Cooling, Or Curing Plastics Or The Like In General (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Heat Treatments In General, Especially Conveying And Cooling (AREA)
  • Structure Of Belt Conveyors (AREA)
  • Heat Treatment Of Strip Materials And Filament Materials (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)

Claims (7)

  1. Dispositif de traitement thermique d'une nappe de produit (1) en déplacement continu, au moyen d'un courant d'air en circulation, comprenant
    a) un ventilateur (3) destiné à refouler le courant d'air en circulation et disposé dans une enveloppe (6) communiquant avec le refoulement du ventilateur,
    b) au moins un banc de buses (8, 9), auquel un clapet réglable d'étranglement (14, 15) est affecté, raccordé au côté supérieur de l'enveloppe (6) du ventilateur et destiné à diriger le courant d'air sur la nappe de produit,
    c) un canal (11) de reflux d'air disposé plus bas que le banc de buses (8, 9), comportant à l'une des extrémités un orifice d'aspiration (12a) et raccordé à l'autre extrémité à l'aspiration du ventilateur (3),
    d) une ouverture de dérivation prévue plus bas que la nappe de produit (1) et dans la région de l'enveloppe (6) du ventilateur et qu'un clapet (16) ouvre ou obture,
    caractérisé en ce que
    e) l'ouverture de dérivation est disposée dans une cloison latérale de l'enveloppe (6) du ventilateur et un clapet de dérivation (16), dont l'actionnement est indépendant de celui du clapet d'étranglement (14, 15) du banc de buses (8, 9), est prévu pour cette ouverture de dérivation.
  2. Dispositif selon la revendication 1, comprenant plusieurs zones de traitement (2, 2a, 2b) se succédant dans le sens du déplacement de la nappe de produit (1) et dont chacune comporte un ventilateur (3), au moins un banc de buses (8, 9), un canal (11) de reflux d'air et un clapet de dérivation (16), les ventilateurs (par exemple 3, 3a) étant disposés alternativement sur des côtés longs différents du dispositif, caractérisé en ce que chaque ouverture de dérivation est disposée dans la cloison latérale de l'enveloppe (6) du ventilateur qui est tournée vers le canal de reflux d'air (11a) de la zone voisine de traitement (2a).
  3. Dispositif selon la revendication 2, caractérisé en ce que chaque orifice d'aspiration (12a, 12b) est disposé dans la cloison latérale du canal de reflux d'air (11a) qui est tournée vers l'ouverture de dérivation de la zone voisine de traitement.
  4. Dispositif selon la revendication 2, caractérisé en ce que la cloison latérale, comportant l'ouverture de dérivation, de l'enveloppe (6) du ventilateur qui est rectangulaire en coupe longitudinale verticale est formée d'une surface verticale plane.
  5. Dispositif selon la revendication 2, caractérisé en ce qu'une ouverture de dérivation est disposée dans chacune des deux cloisons latérales de l'enveloppe (6) du ventilateur qui sont tournées vers les canaux (11, 11a) de reflux d'air des zones voisines de traitement.
  6. Dispositif selon la revendication 4, caractérisé en ce que le clapet de dérivation (16) est orientable au moyen d'un arbre vertical d'actionnement (17).
  7. Dispositif selon la revendication 6, caractérisé en ce que l'arbre (17) d'actionnement du clapet de dérivation (16) est monté dans l'enveloppe (4) du dispositif de la machine et l'extrémité de cet arbre d'actionnement qui est destinée à être attaquée par une commande pneumatique ou électrique de positionnement traverse le toit de l'enveloppe (4) de la machine.
EP88112556A 1987-08-16 1988-08-02 Dispositif de traitement thermique d'une bande de matière Expired - Lifetime EP0303887B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT88112556T ATE68872T1 (de) 1987-08-16 1988-08-02 Vorrichtung zur waermebehandlung einer warenbahn.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19873727280 DE3727280A1 (de) 1987-08-16 1987-08-16 Vorrichtung zur waermebehandlung einer warenbahn
DE3727280 1987-08-16

Publications (2)

Publication Number Publication Date
EP0303887A1 EP0303887A1 (fr) 1989-02-22
EP0303887B1 true EP0303887B1 (fr) 1991-10-23

Family

ID=6333854

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88112556A Expired - Lifetime EP0303887B1 (fr) 1987-08-16 1988-08-02 Dispositif de traitement thermique d'une bande de matière

Country Status (4)

Country Link
EP (1) EP0303887B1 (fr)
AT (1) ATE68872T1 (fr)
DE (2) DE3727280A1 (fr)
ES (1) ES2026230T3 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19844692A1 (de) * 1998-09-29 2000-03-30 Brueckner Apparatebau Gmbh Vorrichtung zur Wärmebehandlung einer Warenbahn

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL9300199A (nl) * 1993-02-01 1994-09-01 Stork Contiweb Droger met verkorte heropstart.
DE19804396A1 (de) * 1998-02-04 1999-08-05 Brueckner Apparatebau Gmbh Vorrichtung zur Wärmebehandlung einer Warenbahn
US8222874B2 (en) 2007-06-26 2012-07-17 Vishay-Siliconix Current mode boost converter using slope compensation

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1121824A (fr) * 1954-04-05 1956-08-27 Séchoir perfectionné
US4137649A (en) * 1973-04-21 1979-02-06 Vepa Ag Apparatus for the heat treatment of textiles
DE2705760A1 (de) * 1977-02-11 1978-08-17 Artos Meier Windhorst Kg Vorrichtung zum trocknen von breitgefuehrten textilbahnen u.dgl.
DE3104556A1 (de) * 1980-12-03 1982-08-26 Brückner Trockentechnik GmbH & Co KG, 7250 Leonberg Vorrichtung zur waermebehandlung von bahnfoermigem gut
DE3116838A1 (de) * 1981-04-28 1982-11-11 Brückner Trockentechnik GmbH & Co KG, 7250 Leonberg Vorrichtung zur heissluft-trocknung von textilgut
DE3336331C2 (de) * 1983-10-06 1985-12-05 A. Monforts GmbH & Co, 4050 Mönchengladbach Konvektionstrocken- und/oder -fixiermaschine
DE3419531A1 (de) * 1984-05-25 1985-11-28 Babcock Textilmaschinen GmbH, 2105 Seevetal Anordnung zur vermeidung der beschaedigung von warenbahnen bei der trockenwaermebehandlung mittels stroemender behandlungsmittel
DE3627904A1 (de) * 1986-08-16 1988-02-18 Monforts Gmbh & Co A Konvektionstrocken- und/oder -fixiermaschine

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19844692A1 (de) * 1998-09-29 2000-03-30 Brueckner Apparatebau Gmbh Vorrichtung zur Wärmebehandlung einer Warenbahn

Also Published As

Publication number Publication date
ATE68872T1 (de) 1991-11-15
DE3865774D1 (de) 1991-11-28
ES2026230T3 (es) 1992-04-16
EP0303887A1 (fr) 1989-02-22
DE3727280A1 (de) 1989-03-02

Similar Documents

Publication Publication Date Title
DE2745962C2 (de) Kühltruhe mit Produktspeicherraum und Zugangsöffnung
EP3504363B1 (fr) Four d'oxydation
DE69100274T2 (de) Vorrichtung zur Belüftung und Heizung des Fahrgastraums eines Kraftfahrzeugs.
EP0345510B1 (fr) Séchoir avec un dispositif de commande avec vannes
DE3437259A1 (de) Vorrichtung zum ablenken eines luftstromes
DE2908348A1 (de) Schwebetrockner
DE69617879T2 (de) Verfahren und Vorrichtung zum Trocknen einer Beschichtung auf einer Papierbahn oder einem gleichwertigen Träger
DE29700769U1 (de) Trockner für Gipskartonplatten
EP0217263B1 (fr) Machine pour le traitement par la chaleur
DE2613963C2 (de) Textilwärmebehandlungsvorrichtung insbesondere Spannrahmen
DE2528565B2 (de) Trocknungsanlage, insbesondere Trocknungskanal
EP0303887B1 (fr) Dispositif de traitement thermique d'une bande de matière
EP0471162B1 (fr) Dispositif de séchage et/ou de fixation à convection
DE102005030501A1 (de) Trocknungsvorrichtung, insbesondere zum Trocknen von Schnittholz
EP0063642B1 (fr) Dispositif pour le séchage par air chaud de matières textiles
WO2005003661A1 (fr) Four a circulation d'air
EP1035385B1 (fr) Procedé de thermoregulation d'un hall et dispositif pour la mise en oeuvre de ce procedé
EP0157290B1 (fr) Appareil de fabrication de produits en chocolat mis en forme
DE3727651A1 (de) Vorrichtung zur waermebehandlung von warenbahnen, insbesondere textilbahnen
DE2201731A1 (de) Vorrichtung zur waermebehandlung einer flaechenhaften warenbahn
EP0935112B1 (fr) Dispositif pour le traitement thermique d'une bande de matière
DE3004073A1 (de) Raumlueftungseinrichtung
DE2029494A1 (en) Heat treating moving band - with adjustment of air nozzles to different
DE3050685C2 (de) Einrichtung zum Erzeugen eines Torluftschleiers
EP1792861B1 (fr) Dispositif de transport à bande sous vide pour guider une bande en mouvement

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: A1

Designated state(s): AT DE ES FR GB IT

17P Request for examination filed

Effective date: 19890228

17Q First examination report despatched

Effective date: 19900316

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

ITF It: translation for a ep patent filed
AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT DE ES FR GB IT

REF Corresponds to:

Ref document number: 68872

Country of ref document: AT

Date of ref document: 19911115

Kind code of ref document: T

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)
REF Corresponds to:

Ref document number: 3865774

Country of ref document: DE

Date of ref document: 19911128

ET Fr: translation filed
REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2026230

Country of ref document: ES

Kind code of ref document: T3

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: AT

Payment date: 20000710

Year of fee payment: 13

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

Ref country code: GB

Payment date: 20000718

Year of fee payment: 13

Ref country code: FR

Payment date: 20000718

Year of fee payment: 13

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

Ref country code: ES

Payment date: 20000807

Year of fee payment: 13

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

Ref country code: DE

Payment date: 20001026

Year of fee payment: 13

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

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20010802

Ref country code: AT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20010802

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

Ref country code: ES

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20010803

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20010802

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

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20020430

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

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20020501

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

REG Reference to a national code

Ref country code: ES

Ref legal event code: FD2A

Effective date: 20020911

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 NON-PAYMENT OF DUE FEES;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: 20050802