EP0273230B1 - Procédé et dispositif de traitement thermique continu d'une bande continue de textile - Google Patents

Procédé et dispositif de traitement thermique continu d'une bande continue de textile Download PDF

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Publication number
EP0273230B1
EP0273230B1 EP87117916A EP87117916A EP0273230B1 EP 0273230 B1 EP0273230 B1 EP 0273230B1 EP 87117916 A EP87117916 A EP 87117916A EP 87117916 A EP87117916 A EP 87117916A EP 0273230 B1 EP0273230 B1 EP 0273230B1
Authority
EP
European Patent Office
Prior art keywords
exhaust gas
treatment zone
treatment
heated
stream
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
EP87117916A
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German (de)
English (en)
Other versions
EP0273230A3 (en
EP0273230A2 (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 AT87117916T priority Critical patent/ATE58226T1/de
Publication of EP0273230A2 publication Critical patent/EP0273230A2/fr
Publication of EP0273230A3 publication Critical patent/EP0273230A3/de
Application granted granted Critical
Publication of EP0273230B1 publication Critical patent/EP0273230B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • F26B21/04—Circulating air or gases in closed cycles, e.g. wholly within the drying enclosure partly outside 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
    • F26B23/00—Heating arrangements
    • F26B23/02—Heating arrangements using combustion heating
    • F26B23/022—Heating arrangements using combustion heating incinerating volatiles in the dryer exhaust gases, the produced hot gases being wholly, partly or not recycled into the drying enclosure

Definitions

  • the invention relates to a method for thermal treatment, in particular for drying and / or fixing, a continuously moving textile fabric web in a treatment device with at least two treatment zones traversed by the fabric web in accordance with the preamble of claim 1. Furthermore, the invention relates to a treatment device to carry out this procedure.
  • a second partial exhaust gas stream is drawn off and freed of the pollutant components contained therein by combustion.
  • the second partial exhaust gas stream heated by this combustion is then used first for preheating the second partial exhaust gas stream supplied to the combustion device and then for reheating the first partial exhaust gas stream before it is released into the atmosphere.
  • the invention is based on the object of further improving a method of the type required in the preamble of claim 1 in such a way that the heat consumption and thus the energy costs for the exhaust gas purification can still be reduced considerably and at the same time the structural outlay for the equipment parts required for this is significantly reduced can be.
  • thermal treatment facilities such as e.g. Tensioning machines
  • combined thermal treatment processes namely in general drying and fixing
  • the textile fabric web is dried in the first treatment zone, water vapor essentially being produced due to the temperatures prevailing there, while fixation is mainly carried out in the second treatment zone, this being carried out at higher temperatures than in the first treatment zone, so that here too more Substances, etc. also spinning and winding oils, evaporate and are added to the exhaust gas to be extracted.
  • the entire exhaust gas is now drawn off from the rear end of the first treatment zone, as viewed in the direction of travel of the web, that is to say generally in the dryer part of the treatment device, and this exhaust gas flow is only regulated in a controlled manner for one to be fed into the second treatment zone heated to a suitable temperature and then introduced as a fresh gas quantity directly into this second treatment zone, corresponding to the general procedure explained above, ie into the fixing zone.
  • Exhaust gas laden with water vapor in the first treatment zone is heated further in a permissible manner in order to be able to use it in the subsequent second treatment zone as the amount of fresh gas required there, but this temperature increase also means that this exhaust gas used as fresh gas in the second treatment zone now prepared for an increased steam load and there is no fear of condensation of the high water vapor content of this exhaust gas.
  • a partial exhaust gas stream is now continuously withdrawn, which is to be released into the atmosphere.
  • This partial exhaust gas stream drawn off from the second treatment zone is in addition to water vapor with other vaporized substances, such as evaporated spinning and winding oils and possibly other pollutant substances, with some of the leakage air coming from the web exit slot at this end of the treatment device or second treatment zone.
  • This partial exhaust gas stream drawn off from the second treatment zone is then fed to the combustion device (post-combustion device), initially in the same way as in the process according to German patent 2 812 966, in that it has previously been preheated strongly with the exhaust gas partial stream already heated by the combustion of the pollutant components.
  • the combustion device post-combustion device
  • this heated partial exhaust gas stream has preheated the partial exhaust gas stream coming directly from the first treatment zone, it is used for further heating of the exhaust gas stream removed from the first treatment zone. Before this heated partial exhaust gas stream is released into the atmosphere, however, it is first used for heating the fresh air to be supplied to the treatment device (at the end of the web of material).
  • the partial exhaust gas stream from the second treatment zone is therefore, after it has been heated in the combustion device, according to the invention, firstly for preheating the partial exhaust gas stream coming directly from the second treatment zone, secondly for further heating the exhaust gas stream removed from the first treatment zone and thirdly for heating the treatment device fresh air to be supplied is used and sufficiently heated or cooled.
  • the total amount of exhaust gas from the thermal treatment device is reduced to approximately 50% compared to known designs by using the exhaust gas from the first treatment zone a second time (in the second treatment zone) after it has been heated to an admissible, regulated extent has been.
  • the thermal treatment device illustrated in the drawing contains, as the actual treatment device for a heat treatment of a textile fabric web 1 continuously moving through it, a tensioning machine 2 which is divided into two treatment zones, of which the first treatment zone first passed through the fabric web 1 includes a dryer part 2a and the second heat treatment zone passed through by the web 1 forms a fixing part 2b.
  • This tensioning machine 2 can be implemented in a conventional manner, i.e. Both the dryer part 2a and the fixing part 2b can be divided into several treatment fields.
  • the material web 1 passes through this tensioning machine 2 continuously in the direction of the arrow 3.
  • the thermal treatment device further contains a combustion device designed as a thermal afterburning device 4, which can be equipped with a burner 5, preferably a gas burner.
  • a combustion device designed as a thermal afterburning device 4, which can be equipped with a burner 5, preferably a gas burner.
  • the web end 2b ' is connected via an exhaust pipe 6 to the thermal afterburning device 4 with the interposition of a first indirect heat exchanger 7.
  • the tensioning machine 2 is also assigned two further indirect heat exchangers, namely a second heat exchanger 8 and a third heat exchanger 9. All three heat exchangers 7, 8, 9 are connected to a main exhaust gas line 10, which starts from the thermal afterburning device 4 and leads to a chimney 11 and via which an exhaust gas partial flow heated in the thermal afterburning device 4 first of the one side of the first heat exchanger 7, then - at least partially - the one side of the second heat exchanger 8 and then - again at least partially - the one side of the third heat exchanger 9 is supplied before it is released into the atmosphere via the chimney 11.
  • a main exhaust gas line 10 which starts from the thermal afterburning device 4 and leads to a chimney 11 and via which an exhaust gas partial flow heated in the thermal afterburning device 4 first of the one side of the first heat exchanger 7, then - at least partially - the one side of the second heat exchanger 8 and then - again at least partially - the one side of the third heat exchanger 9 is supplied before it is released into the atmosphere via the chimney
  • the other side of the first heat exchanger 7 is - as already indicated - via the exhaust pipe 6 which is Outgoing 2b 'of the fixing part 2b coming exhaust gas stream supplied for change before it is introduced into the thermal afterburning device 4 in order to burn the pollutant components contained therein in the usual way.
  • the second side of the second heat exchanger 8 is supplied with all of the exhaust gas from the rear end 2a 'of the dryer part 2a, as viewed in the direction of travel of the web (arrow 3), in order to be heated further in a controlled manner before this entire exhaust gas flow is introduced as fresh gas into the front end 2b "of the fixing part 2b, again viewed in the direction of the web.
  • the surrounding space is fed, the fresh air thus heated being introduced via a fresh air supply line 15 into the web end 2a "of the dryer part 2a and thus the tensioning machine 2.
  • bypass control flaps 16, 16a and 17, 17a and one bypass line 18 and 19 provided in the line sections of this main exhaust line 10, which lead from the first heat exchanger 7 to the second heat exchanger 8 and from the second heat exchanger 8 to the third heat exchanger 9, whereby at least part of the heated partial exhaust gas flow can be directed in a precisely controllable manner on the one hand around the second heat exchanger 8 and on the other hand around the third heat exchanger 9 in the bypass.
  • These bypass devices make it possible to operate the two heat exchangers 8 and 9 in a precisely controllable manner, i.e.
  • the fresh air to be introduced into the web end 2a "into the dryer part 2a is preferably heated to a temperature which corresponds approximately to the temperature of the exhaust gas drawn off at the rear end 2a 'of the dryer part 2a.
  • the exhaust gas stream drawn off here is then also in the second heat exchanger 8 in its temperature can be regulated in a precisely controllable manner (for introduction as a fresh gas amount into the fixing part 2b), this increased temperature then roughly corresponding to the temperature of the partial gas stream (line 6) drawn off at the end of this fixing part 2b.
  • the temperature of the hot gas stream circulated there is approximately 200 ° C.
  • the exhaust gas partial stream drawn off via the exhaust line 6 at the end 2b ′ of the web again has a temperature of approximately 180 ° C. If one were to feed the partial exhaust gas stream withdrawn here at this temperature (180 ° C.) directly to the thermal afterburning device 4, this would mean that this device 4 still has to be supplied with a considerable additional part of thermal energy via its burner 5 in order to carry out the thermal afterburning to burn the pollutant components contained in this partial gas stream at about 700 to 800 ° C.
  • the partial exhaust gas stream drawn from the fixing part 2b via the line 6 in the first heat exchanger 7 is first heated to about 550 to 650 ° C, preferably about 600 ° C, with the help of the exhaust gas stream coming from the afterburning device 4 and heated to about 700 to 750 ° C is preheated, only a relatively small additional heat energy supply via the burner 5 to the thermal afterburning device 4 is required.
  • the heated exhaust gas partial flow leaves the first heat exchanger 7 at a temperature of approximately 350 ° C., at least partially passes through the second heat exchanger 8 and is cooled there to approximately 320 ° C. before it flows through the third heat exchanger 9 and is released into the atmosphere at about 250 ° C. via the chimney 11.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Textile Engineering (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Drying Of Solid Materials (AREA)

Claims (5)

1. Procédé de traitement thermique, en particulier de séchage et/ou de fixage d'une nappe de produit textile en défilement continu dans une installation de traitement comprenant au moins deux zones par lesquelles la nappe de produit passe successivement, traitement effectué à l'aide d'un courant de gaz chaud en circulation dans l'installation et dont la température est supérieure dans la seconde zone à celle régnant dans la première zone de traitement par laquelle passe tout d'abord la nappe de produit,
a) le courant d'évacuation soutiré en permanence de la première zone de traitement étant réchauffé dans un échangeur de chaleur et dirigé sous forme de gaz frais dans la seconde zone de traitement,
b) un courant partiel de gaz d'évacuation étant soutiré à la fin de la seconde zone de traitement et débarrassé par combustion des substances nocives qu'il contient,
c) ce courant partiel de gaz d'évacuation chauffé par combustion étant utilisé avant son évacuation à l'atmosphère tout d'abord pour réchauffer le courant partiel de gaz d'évacuation devant être dirigé sur le dispositif de combustion, puis pour réchauffer le débit de gaz frais devant être dirigé dans la seconde zone de traitement, et
d) de l'air frais étant dirigé dans l'installation de traitement, à l'extrémité d'admission de la nappe de produit, à un débit qui correspond à celui du gaz évacué de la fin de la seconde zone de traitement et rejeté à l'atmosphère,
caractérisé par les particularités suivantes:
e) la totalité du gaz d'évacuation est soutirée de l'extrémité arrière - considérée dans le sens de défilement de la nappe de produit - de la première zone de traitement et ce courant de gaz d'évacuation est simplement porté, après un complément réglé de réchauffage, à la température qui lui convient pour être introduit en totalité sous forme de débit de gaz frais directement dans la seconde zone de traitement;
f) le courant partiel de gaz d'évacuation soutiré de la seconde zone de traitement, à l'extrémité de sortie de la nappe de produit, et chauffé par combustion de ses constituants nocifs, est utilisé, après avoir réchauffé le courant de gaz d'évacuation prélevé sur la première zone de traitement, tout d'abord pour chauffer l'air frais devant être dirigé sur l'installation de traitement, avant d'être évacué à l'atmosphère.
2. Procédé selon la revendication 1, caractérisé en ce que l'air frais devant être introduit en permanence dans l'installation de traitement, à l'extrémité d'admission de la nappe de produit, est prélevé sur l'espace ambiant de cette installation et porté par chauffage de manière réglée à une température qui correspond approximativement à celle des gaz d'évacuation soutirés de la première zone de traitement, tandis que la température, légèrement supérieur à la précédente, du débit de gaz frais devant être dirigé sur la seconde zone de traitement coïncide approximativement avec celle du courant partiel de gaz d'évacuation soutiré à la fin de cette seconde zone de traitement.
3. Procédé selon la revendication 2, suivant lequel la première zone de traitement par laquelle passe tout d'abord la nappe de produit est utilisée en zone de séchage et la seconde, en zone de fixage de l'installation de traitement, caractérisé en ce que le gaz chaud en circulation dans la zone de séchage est à une température d'environ 100 à 180°C, la température du gaz d'évacué de cette zone étant d'environ 80 à 160°C, tandis que le traitement effectué dans la zone de fixage est exécuté à une température d'environ 170 à 220°C, la température des gaz d'évacuation de cette zone étant comprise entre environ 150 et 210°C.
4. Procédé selon la revendication 2, caractérisé en ce que le courant partiel de gaz d'évacuation soutiré de la seconde zone de traitement est chauffé, avant son introduction dans le dispositif de combustion, pour être porté à une température d'au moins environ 550 à 650°C, de préférence d'environ 600°C.
5. Dispositif de traitement thermique pour la mise en oeuvre du procédé selon la revendication 1, comprenant:
a) un dispositif de combustion (4) destiné à la postcombustion thermique des substances nocives entraînées par le courant partiel de gaz d'évacuation de la seconde zone de traitement (2b),
b) un premier échangeur indirect de chaleur (7) qui est balayé d'un côté par le courant partiel de gaz d'évacuation provenant de la seconde zone de traitement et, de l'autre côté, par le courant partiel chauffé de gaz d'évacuation provenant directement du dispositif de combustion,
c) un deuxième échangeur indirect de chaleur (8), qui est monté en aval du premier échangeur par rapport au sens d'écoulement (13) du courant partiel chauffé de gaz d'évacuation et qui est balayé d'un côté par ce courant partiel de gaz d'évacuation et, de l'autre côté, par le courant de gaz d'évacuation soutiré de la première zone de traitement,
d) des canalisations pour l'air frais, pour le courant de gaz d'évacuation de la première zone de traitement, pour le courant partiel de gaz d'évacuation allant de la seconde zone de traitement au dispositif de combustion ainsi que pour le courant partiel de gaz d'évacuation allant du dispositif de combustion aux échangeurs de chaleur et vers l'évacuation à l'atmosphère,
caractérisé par les particularités suivantes:
e) un troisième échangeur indirect de chaleur (9), monté en aval du second (8) par rapport au sens d'écoulement (13) du courant partiel chauffé de gaz d'évacuation, est balayé d'un côté également par ce courant partiel de gaz d'évacuation et, de l'autre côté, par l'air frais devant être dirigé sur l'extrémité d'admission de la nappe de tissu (2a") de l'installation de traitement (2);
f) des clapets régulateurs de dérivation (16, 16a, 17, 17a) et des canalisations de dérivation (18, 19) sont montés dans les sections de la canalisation du courant partiel de gaz d'évacuation qui mènent du premier au deuxième échangeur de chaleur (7, 8) et du deuxième au troisième (8, 9) pour assurer une dérivation partielle de ces deuxième et troisième échangeurs de chaleur.
EP87117916A 1986-12-23 1987-12-03 Procédé et dispositif de traitement thermique continu d'une bande continue de textile Expired - Lifetime EP0273230B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT87117916T ATE58226T1 (de) 1986-12-23 1987-12-03 Verfahren und einrichtung zur thermischen behandlung einer kontinuierlich bewegten textilen wahrenbahn.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3644323 1986-12-23
DE19863644323 DE3644323A1 (de) 1986-12-23 1986-12-23 Verfahren und einrichtung zur thermischen behandlung einer kontinuierlich bewegten textilen warenbahn

Publications (3)

Publication Number Publication Date
EP0273230A2 EP0273230A2 (fr) 1988-07-06
EP0273230A3 EP0273230A3 (en) 1989-01-04
EP0273230B1 true EP0273230B1 (fr) 1990-11-07

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EP87117916A Expired - Lifetime EP0273230B1 (fr) 1986-12-23 1987-12-03 Procédé et dispositif de traitement thermique continu d'une bande continue de textile

Country Status (4)

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US (1) US5483754A (fr)
EP (1) EP0273230B1 (fr)
AT (1) ATE58226T1 (fr)
DE (2) DE3644323A1 (fr)

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DE4026106C2 (de) * 1990-08-17 1995-04-13 Monforts Gmbh & Co A Wärmebehandlungsmaschine
EP0629500B1 (fr) * 1990-12-03 1997-05-14 Mitsubishi Jukogyo Kabushiki Kaisha Appareil de séchage pour une machine d'impression rotative
DE59007706D1 (de) * 1990-12-13 1994-12-15 Boockmann Gmbh Verfahren und Vorrichtung zum Tränken und/oder Beschichten von Gegenständen.
US5840101A (en) * 1995-05-27 1998-11-24 Wet Tex Maschinenbau Gmbh Method and apparatus for treatment of an endless web of material with vacuum
DE19519551A1 (de) * 1995-05-27 1996-11-28 Wet Tex Maschinenbau Gmbh Verfahren und Vorrichtung zum Behandeln einer Warenbahn im Vakuum
DE20023040U1 (de) * 2000-07-25 2002-12-05 B.I.M. Textil Mietservice Betriebshygiene GmbH, 99834 Gerstungen Anordnung zur Schadstoffbeseitigung z.B. beim umweltverträglichen Reinigen von schadstoffbehafteten Textilien, wie Industrie-Putztüchern mit Lösungsmittel-Rückständen
CN101482364B (zh) * 2009-01-19 2011-12-28 东莞泽龙线缆有限公司 一种漆包机合理分配催化燃烧热能的方法和设备
DE102012102096A1 (de) * 2012-03-13 2013-09-19 Brückner Trockentechnik GmbH & Co. KG Vorrichtung und Verfahren zur Wärmebehandlung von bahnförmigen Warenbahnen
US10995988B2 (en) * 2015-12-21 2021-05-04 Verboca Energy-Saving Technologies Co., Ltd Balanced drying system
CN113432402A (zh) * 2021-07-15 2021-09-24 嘉善逸信智能科技有限公司 一种能够均匀染色的纺织用双面烘干装置

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DE2254848B2 (de) * 1972-11-09 1976-08-05 Böhler-Zenkner GmbH & Co KG Strömungstechnik, 4005 Meerbusch Anordnung zur thermischen nachverbrennung
DE2812966C2 (de) * 1978-03-23 1986-06-19 Brückner-Apparatebau GmbH, 6120 Erbach Verfahren zur thermischen Behandlung einer Warenbahn
JPS556114A (en) * 1978-06-26 1980-01-17 Matsushita Electric Works Ltd Method of setting flow of incoming air and outgoing air dryer
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DE3616333C1 (de) * 1986-05-15 1987-04-16 Krantz H Gmbh & Co Verfahren zum thermischen Reinigen der Abgase einer Waermebehandlungsvorrichtung

Also Published As

Publication number Publication date
ATE58226T1 (de) 1990-11-15
EP0273230A3 (en) 1989-01-04
DE3766085D1 (de) 1990-12-13
US5483754A (en) 1996-01-16
EP0273230A2 (fr) 1988-07-06
DE3644323A1 (de) 1988-07-07

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