EP0556417A1 - Apparatus for the thermal treatment of running webs - Google Patents

Apparatus for the thermal treatment of running webs Download PDF

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Publication number
EP0556417A1
EP0556417A1 EP92102564A EP92102564A EP0556417A1 EP 0556417 A1 EP0556417 A1 EP 0556417A1 EP 92102564 A EP92102564 A EP 92102564A EP 92102564 A EP92102564 A EP 92102564A EP 0556417 A1 EP0556417 A1 EP 0556417A1
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EP
European Patent Office
Prior art keywords
sieves
cleaning
screens
treatment
agent
Prior art date
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Granted
Application number
EP92102564A
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German (de)
French (fr)
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EP0556417B1 (en
Inventor
Karl-Heinz Dipl.-Ing. Gottschalk
Jürgen Dipl.-Ing. Brauns
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Babcock Textilmaschinen GmbH
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Babcock Textilmaschinen GmbH
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Priority to DE59202345T priority Critical patent/DE59202345D1/en
Priority to ES92102564T priority patent/ES2074746T3/en
Priority to AT92102564T priority patent/ATE123135T1/en
Priority to DK92102564.9T priority patent/DK0556417T3/en
Priority to EP92102564A priority patent/EP0556417B1/en
Application filed by Babcock Textilmaschinen GmbH filed Critical Babcock Textilmaschinen GmbH
Priority to DE9301274U priority patent/DE9301274U1/en
Publication of EP0556417A1 publication Critical patent/EP0556417A1/en
Publication of EP0556417B1 publication Critical patent/EP0556417B1/en
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    • 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
    • F26B21/003—Supply-air or gas filters
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B25/00—Details of general application not covered by group F26B21/00 or F26B23/00
    • F26B25/005—Treatment of dryer exhaust gases
    • F26B25/007—Dust filtering; Exhaust dust filters

Definitions

  • the present invention relates to a device for the heat treatment of running material webs, such as textile webs or the like, in particular dryer, with repeated supply and discharge of the air, gas or vapor treatment agent in circulation on and from the material webs, in which the circulating treatment agent before re-feeding onto the material web for separating contaminants of the treatment agent entrained in the treatment from the material web via sieves.
  • finishing agents In addition to the fibers, finishing agents also contaminate the sieve belts considerably. If these burn in additionally, they are very difficult to remove.
  • the sieves that are switched into the treatment agent circuit for this purpose must be cleaned normally after each layer, ie the fiber mat that is formed is removed. So far, it has been necessary to switch off the dryer, to let it cool down and to open it in order to access the screens. This means downtimes and therefore loss of production for the dryer. Once a week it is also necessary to clean the sieve gauze from additives. This is usually done by boiling, because once they are in the solid state, they cannot be removed otherwise.
  • the object of the present invention is therefore to achieve a problem-free cleaning of the screens even in such cases and also the downtimes for the Avoid treatment facilities completely as a result of screen cleaning.
  • a device of the type mentioned at the outset to connect the screens to cleaning nozzles for the screens, by means of which the screens clean the screens with high pressure from the side of the screens facing away from the inflow side of the treatment agent to the web to be treated is fed.
  • collecting devices for the impurities removed from the sieves should be arranged on the side of the sieves opposite or facing away from the cleaning nozzles for the sieves.
  • peripheral brushes for the sieves can be additionally attached to the sieves.
  • Compressed air or water can be used as the cleaning agent blown onto the sieves by the cleaning nozzles.
  • the cleaning agent can be heated up.
  • a movable screen belt with cleaning nozzles and optionally brush cleaning devices can be assigned to each section or each field of a dryer, but it is also possible to provide a common rotating or rollable screen belt for all fields of a dryer, which is at the beginning and / or end of Dryer is led out of the dryer housing, the cleaning devices can advantageously be arranged outside the actual dryer housing because of the improvement in accessibility. This has the advantage that the dirt is deposited in one place, but the rest of the work area remains free of lint piles.
  • the cleaning nozzles and, if appropriate, the cleaning brushes should be fitted immediately behind the outlet of the sieve belts from the treatment room, so that they do not cool down too much during cleaning.
  • Fibers and finishing agents should not remain on the sieve belt for long so as not to stick. Immediate removal ensures easy cleaning, even of additives, as long as they are fresh and still liquid. It has also proven to be advantageous to provide an additional heating section for the sieve belts with a heating element which is operated with steam or a radiant heater for the sieve belts in front of the cleaning nozzles and optionally brushes.
  • the cleaning nozzles To supply the cleaning agent to the cleaning nozzles, the cleaning nozzles or the blow or connected with them. Pressure devices are connected to remote-controlled valves, the control of which can take place either depending on the flow resistance of the screens to be cleaned or on the time.
  • the circuit should therefore be such that the screen cleaning system is switched on automatically when the filter exceeds a certain resistance due to the contamination. The full performance of a dryer can only be maintained if the sieves are constantly cleaned. Otherwise the output drops by about 15% in one shift.
  • the dryer housing is denoted by 10 and the nozzle body arranged therein, between which the web 24 is passed for drying, 11.
  • the treatment agent is circulated in the direction of the drawn arrows in the dryer housing and flows from the circulating air fan 12 into the nozzle body 11, steps from there onto the web 24 and is then discharged between adjacent nozzle bodies and returned to the fan 12. During this circulation, the treatment agent is then reheated in a heating register 13 before it is blown onto the material web again.
  • a fiber trap screen 14 is arranged in front of the heating register 13, by means of which the lint detached from the treatment agent from the material web 24 is prevented from entering the narrow channels of the heating register. If there is a lot of fluff, a more or less thick layer of fluff builds up on the sieve, which results in a strong increase in flow resistance, which can lead to a not inconsiderable drop in the performance of the dryer. This fiber layer must therefore be removed from time to time or continuously, depending on the amount of contamination. This is done according to the invention by means of a blowing nozzle which is preferably displaceably arranged on the sieve 14 and which is connected to some blowing or printing device for the cleaning medium.
  • Fig. 5 shows the cleaning of the pressure medium in an enlarged representation.
  • the screen is cleaned here outside the actual dryer housing 10.
  • the direction of flow of the drying medium to the screen is indicated by arrows.
  • the contaminants are therefore on the outside of the sieve belt 19.
  • the sieve belt is led out of the treatment housing for cleaning.
  • the blowing nozzle 15 which is displaceable transversely to the running direction of the sieve belt, a support roller 16 opposite this, and a collecting container 17 for the impurities removed from the sieve.
  • a radiant heater 18 is also provided for the sieve belt in order to keep the temperature of the sieve belt at the optimum temperature for the removal of the additives.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Treatment Of Fiber Materials (AREA)
  • General Preparation And Processing Of Foods (AREA)
  • Control And Other Processes For Unpacking Of Materials (AREA)
  • Processing Of Meat And Fish (AREA)
  • Drying Of Solid Materials (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
  • Heating, Cooling, Or Curing Plastics Or The Like In General (AREA)

Abstract

Apparatus, in particular dryer, for textile webs or the like, with repeated supply and removal of the aeriform, gaseous or vaporous treatment agent in circulation to and from the webs (24), in which the circulating treatment agent is, before resupply to the web, is guided via sieves (14, 19) to separate impurities in the treatment agent which are carried along during treatment of the web. To improve the cleaning of the sieves (14, 19), in particular in the event of reviving in the treatment-agent flow, it is proposed according to the invention to connect the sieves to cleaning nozzles (15) for the sieves, through which cleaning agent is supplied to the sieves at high pressure from the inflow side of the treatment agent to the side of the sieves facing away from the web to be treated. <IMAGE>

Description

Die vorliegende Erfindung betrifft eine Vorrichtung zur Wärmebehandlung von laufenden Warenbahnen, wie Textilbahnen oder dergl., insbes. Trockner, mit wiederholter Zu- und Abführung des luft-, gas- oder dampfförmigen Behandlungsmittels im Umlauf auf und von den Warenbahnen, bei der das umlaufende Behandlungsmittel vor der Wiederzuführung auf die Warenbahn zur Abscheidung von bei der Behandlung von der Warenbahn mitgerissenen Verunreinigungen des Behandlungsmittels über Siebe geführt wird.The present invention relates to a device for the heat treatment of running material webs, such as textile webs or the like, in particular dryer, with repeated supply and discharge of the air, gas or vapor treatment agent in circulation on and from the material webs, in which the circulating treatment agent before re-feeding onto the material web for separating contaminants of the treatment agent entrained in the treatment from the material web via sieves.

Bei Trocknern für laufende Textilbahnen, bei denen das Behandlungsmittel vollständig oder auch teilweise nach dem Aufblasen auf die Warenbahn über Heizregister und Gebläse wieder auf die Warenbahn zur erneuten Behandlung zurückgeführt wird, ist es wegen des mehr oder weniger erheblichen Übertrittes von losen Fasern von der Warenbahn in den Behandlungsmittelstrom erforderlich, im Behandlungsmittelkreislauf Faser-Fangsiebe anzuordnen, um die losen Fasern aus dem Behandlungsmitt-elstrom wieder zu entfernen, vor allem, um ein Verstopfen der Heizregister und auch der Düsenkörper und Kanäle durch sich dort aufbauende Faseransammlungen zu verhindern.In the case of dryers for running textile webs, in which the treatment agent is completely or partially returned to the web for re-treatment after being inflated onto the web via heating registers and blowers, it is due to the more or less considerable transfer of loose fibers from the web the treatment agent flow is necessary to arrange fiber strainers in the treatment agent circuit in order to remove the loose fibers from the treatment agent flow again, above all to prevent the heating register and also the nozzle body and channels from being blocked by fiber accumulations building up there.

Neben den Fasern verschmutzen auch Avivagen die Siebbänder beträchtlich. Brennen diese zusätzlich ein, sind sie nur sehr schwer zu beseitigen.In addition to the fibers, finishing agents also contaminate the sieve belts considerably. If these burn in additionally, they are very difficult to remove.

Die zu diesem Zweck in den Behandlungsmittelkreislauf eingeschalteten Siebe müssen normal nach jeder Schicht gereinigt werden, d.h. die sich gebildete Fasermatte wird entfernt. Dazu ist es bisher erforderlich, den Trockner abzuschalten, abkühlen zu lassen und zu öffnen, um an die Siebe zu gelangen. Das bedeutet Stillstandszeiten und somit Produktionsausfall für den Trockner. Einmal pro Woche ist es zusätzlich erforderlich die Siebgaze von Avivagen zu reinigen. Dieses erfolgt normalerweise durch Auskochen, da sie, wenn sie erst im festen Aggregatzustand sind, anders nicht mehr zu entfernen sind.The sieves that are switched into the treatment agent circuit for this purpose must be cleaned normally after each layer, ie the fiber mat that is formed is removed. So far, it has been necessary to switch off the dryer, to let it cool down and to open it in order to access the screens. This means downtimes and therefore loss of production for the dryer. Once a week it is also necessary to clean the sieve gauze from additives. This is usually done by boiling, because once they are in the solid state, they cannot be removed otherwise.

Um die Stillstandszeiten gering zu halten, wurde schon vorgeschlagen, die Siebe herausziehbar im Trocknergehäuse anzubringen (DE-OS 3315755.3) . Hierbei läßt sich aber eine starke Verschmutzung des Aufstellungsraumes des Trockners nicht vermeiden, wenn nicht besondere und aufwendige Vorkehrungen ergriffen werden, um die Verschmutzung beim Herausziehen der Siebe gering zu halten.In order to keep downtimes to a minimum, it has already been proposed to pull the screens out in the dryer housing (DE-OS 3315755.3). In this case, however, severe contamination of the installation space of the dryer cannot be avoided unless special and expensive precautions are taken to keep the contamination low when the sieves are removed.

Es wurde auch schon vorgeschlagen, die Siebe als umlaufende endlose Siebbänder auszuführen und diese dann an Bürsten vorbeizuführen, um die Fasern vom Siebband abzubürsten (DE-GM 1 834 526). Auch wurden statt Bürsten Saugdüsen verwandt, um die Fasern von den Sieben abzusaugen. Durch diese Maßnahmen konnten die Schwierigkeiten mit der Verschmutzung der Aufstellungsräume zwar verringert werden, z.T. teilweise auch ganz vermieden werden.It has also been proposed to design the sieves as continuous endless sieve belts and then to guide them past brushes in order to brush the fibers off the sieve belt (DE-GM 1 834 526). Suction nozzles were also used instead of brushes to suck the fibers off the sieves. Through these measures, the difficulties with the pollution of the installation rooms could be reduced, in part. partially avoided entirely.

Besondere Schwierigkeiten ergeben sich aber für die Reinigung der Siebe,wenn aus einer vorbehandelten Warenbahn Avivagen von der Warenbahn zusätzlich in den Behandlungsmittelstrom gelangen und dadurch ein Verkleben der Fasern mit dem Sieb erfolgt. In diesen häufig vorkommenden Fällen versagen die bekannten Siebreinigungsverfahren.However, there are particular difficulties for the cleaning of the sieves when additives from a pretreated web come from the web into the flow of treatment agent and the fibers are glued to the sieve. In these frequently occurring cases, the known screen cleaning processes fail.

Durch die vorliegende Erfindung soll deshalb die Aufgabe gelöst werden auch in derartigen Fällen eine einwandfreie Reinigung der Siebe zu erzielen und auch die Stillstandszeiten für die Behandlungseinrichtungen infolge Siebreinigung vollständig zu vermeiden.The object of the present invention is therefore to achieve a problem-free cleaning of the screens even in such cases and also the downtimes for the Avoid treatment facilities completely as a result of screen cleaning.

Zur Lösung dieser Aufgabe wird deshalb bei einer Vorrichtung der eingangs genannten Art vorgeschlagen, die Siebe mit Reinigungsdüsen für die Siebe in Verbindung zu bringen, durch die den Sieben Reinigungsmittel von der der Zuströmseite des Behandlungsmittels zu der zu behandelnden Warenbahn abgewandten Seite der Siebe mit hohem Druck zugeführt wird. Zweckmäßig sollen auf der den Reinigungsdüsen für die Siebe gegenüberliegenden bzw. abgewandten Seite der Siebe Auffangvorrichtungen für die von den Sieben entfernten Verunreinigungen angeordnet sein. Weiterhin können auf der den Reinigungsdüsen für die Siebe gegenüberliegenden bzw. abgewandten Seite der Siebe an den Sieben anliegende umlaufende Bürsten für die Siebe zusätzlich angebracht sein.To achieve this object, it is therefore proposed in a device of the type mentioned at the outset to connect the screens to cleaning nozzles for the screens, by means of which the screens clean the screens with high pressure from the side of the screens facing away from the inflow side of the treatment agent to the web to be treated is fed. Appropriately, collecting devices for the impurities removed from the sieves should be arranged on the side of the sieves opposite or facing away from the cleaning nozzles for the sieves. Furthermore, on the side of the sieves opposite or facing away from the cleaning nozzles for the sieves, peripheral brushes for the sieves can be additionally attached to the sieves.

Als auf die Siebe durch die Reinigungsdüsen aufgeblasenes Reinigungsmittel kann Preßluft dienen oder Wasser verwendet werden. Das Reinigungsmittel kann dabei aufgeheizt sein.Compressed air or water can be used as the cleaning agent blown onto the sieves by the cleaning nozzles. The cleaning agent can be heated up.

Bei der Vorrichtung nach der Erfindung kann jeder Sektion oder jedem Feld eines Trockners ein verschiebbares Siebband mit Reinigungsdüsen sowie gegebenenfalls Bürstenreinigungsvorrichtungen zugeordnet sein, es kann aber auch für alle Felder eines Trockners ein gemeinsames umlaufendes oder aufrollbares Siebband vorgesehen werden, welches am Anfang und/oder Ende des Trockners aus dem Trocknergehäuse herausgeführt ist, wobei die Reinigungsvorrichtungen wegen der Verbesserung der Zugänglichkeit vorteilhaft außerhalb des eigentlichen Trocknergehäuses angeordnet sein können. Hierbei ergibt sich der Vorteil, daß die Ablage des Schmutzes an einem Ort erfolgt, der übrige Arbeitsraum aber frei von Flusenhaufen bleibt.In the device according to the invention, a movable screen belt with cleaning nozzles and optionally brush cleaning devices can be assigned to each section or each field of a dryer, but it is also possible to provide a common rotating or rollable screen belt for all fields of a dryer, which is at the beginning and / or end of Dryer is led out of the dryer housing, the cleaning devices can advantageously be arranged outside the actual dryer housing because of the improvement in accessibility. This has the advantage that the dirt is deposited in one place, but the rest of the work area remains free of lint piles.

Wenn die Siebbänder zur Zuführung des Reinigungsmittels aus dem eigentlichen Behandlungsraum für die Warenbahnen herausgeführt sind, sollen die Reinigungsdüsen sowie gegebenenfalls die Reinigungsbürsten unmittelbar hinter dem Austritt der Siebbänder aus dem Behandlungsraum angebracht sein, damit sie nicht zu sehr bei der Reinigung abgekühlt sind.If the sieve belts for supplying the cleaning agent are led out of the actual treatment room for the material webs, the cleaning nozzles and, if appropriate, the cleaning brushes should be fitted immediately behind the outlet of the sieve belts from the treatment room, so that they do not cool down too much during cleaning.

Fasern und Avivagen sollen nicht lange auf dem Siebband verweilen um nicht anzukleben. Sofortiges Entfernen sichert leichte Reinigung sogar von Avivagen solange sie frisch und noch flüssig sind. Als zweckmäßig hat es sich auch erwiesen, vor den Reinigungsdüsen und gegebenenfalls Bürsten eine zusätzliche Aufheizstrecke für die Siebbänder mit einem Heizkörper der mit Dampf betrieben ist oder einen Strahlungsheizkörper für die Siebbänder vorzusehen.Fibers and finishing agents should not remain on the sieve belt for long so as not to stick. Immediate removal ensures easy cleaning, even of additives, as long as they are fresh and still liquid. It has also proven to be advantageous to provide an additional heating section for the sieve belts with a heating element which is operated with steam or a radiant heater for the sieve belts in front of the cleaning nozzles and optionally brushes.

Es hat sich als zweckmäßig erwiesen, die Reinigungsdüsen über die Breite der Siebe verschieblich auszubilden, was zu einfachen Konstruktionen der Reinigungsvorrichtung führt.It has proven to be expedient to design the cleaning nozzles to be displaceable over the width of the sieves, which leads to simple constructions of the cleaning device.

Zur Zuführung des Reinigungsmittels zu den Reinigungsdüsen sollen die Reinigungsdüsen bzw. die mit diesen verbundenen Blasbzw. Druckeinrichtungen mit ferngesteuerten Ventilen in Verbindung stehen, deren Steuerung entweder in Abhängigkeit vom Strömungswiderstand der zu reinigenden Siebe oder von der Zeit erfolgen kann. Die Schaltung soll also so erfolgen, daß ein automatisches Einschalten der Siebreinigungsanlage erfolgt, wenn das Filter einen bestimmten Widerstand durch die Verschmutzung überschreitet. Nur bei ständiger Reinigung der Siebe kann die volle Leistung eines Trockners aufrechterhalten werden. In einer Schicht fällt sonst die Leistung um etwa 15% ab.To supply the cleaning agent to the cleaning nozzles, the cleaning nozzles or the blow or connected with them. Pressure devices are connected to remote-controlled valves, the control of which can take place either depending on the flow resistance of the screens to be cleaned or on the time. The circuit should therefore be such that the screen cleaning system is switched on automatically when the filter exceeds a certain resistance due to the contamination. The full performance of a dryer can only be maintained if the sieves are constantly cleaned. Otherwise the output drops by about 15% in one shift.

An Hand der beiliegenden Zeichnungen soll die Erfindung nachfolgend noch näher erläutert werden. Auf den Zeichnungen zeigen in schematischer Darstellung

Fig. 1
einen Querschnitt durch einen Trockner für laufende Textilbahnen mit Zuführung des Behandlungsmittels zur Warenbahn,
Fig.2
den gleichen Querschnitt mit Abführung des Behandlungsmittels von der Warenbahn,
Fig. 3
die Anordnung von umlaufenden Siebbändern für jedes Feld eines Trockners, schematisch in Seitenansicht,
Fig. 4
ein einzelnes umlaufendes Siebband für den gesamten Trockner, ebenfalls schematisch dargestellt in Seitenansicht und
Fig. 5
in vergrößerter Darstellung die erfindungsgemäße Reinigung des Siebbandes.
The invention will be explained in more detail below with reference to the accompanying drawings. The drawings show a schematic representation
Fig. 1
2 shows a cross section through a dryer for running textile webs with the treatment agent being fed to the web,
Fig. 2
the same cross section with removal of the treatment agent from the web,
Fig. 3
the arrangement of circulating sieve belts for each field of a dryer, schematically in side view,
Fig. 4
a single rotating screen belt for the entire dryer, also shown schematically in side view and
Fig. 5
the cleaning of the filter belt according to the invention in an enlarged view.

Bei der Gesamtdarstellung eines Trockners für laufende Warenbahnen nach Fig. 1 und 2 ist das Trocknergehäuse mit 10 bezeichnet und die darin angeordneten Düsenkörper, zwischen denen die Warenbahn 24 zum Trocknen hindurchgeführt wird, mit 11. Das Behandlungsmittel wird in Richtung der ausgezogenen Pfeile im Trocknergehäuse umgewälzt und strömt dabei vom Umluftventilator 12 in die Düsenkörper 11, tritt von dort auf die Warenbahn 24 und wird danach zwischen benachbarten Düsenkörpern abge-führt und zum Ventilator 12 zurückgeleitet. Bei dieser Umwälzung erfolgt dann in einem Heizregister 13 eine Wiederaufheizung des Behandlungsmittels bevor es erneut auf die Warenbahn geblasen wird.1 and 2, the dryer housing is denoted by 10 and the nozzle body arranged therein, between which the web 24 is passed for drying, 11. The treatment agent is circulated in the direction of the drawn arrows in the dryer housing and flows from the circulating air fan 12 into the nozzle body 11, steps from there onto the web 24 and is then discharged between adjacent nozzle bodies and returned to the fan 12. During this circulation, the treatment agent is then reheated in a heating register 13 before it is blown onto the material web again.

Vor dem Heizregister 13 ist ein Faserfangsieb 14 angeordnet, durch das die vom Behandlungsmittel aus der Warenbahn 24 herausgelösten Flusen am Eintritt in die engen Kanäle des Heizregisters gehindert werden. Bei starkem Flusenanfall baut sich auf dem Sieb eine mehr oder weniger starke Flusenschicht auf, durch die sich eine starke Erhöhung des Strömungswiderstandes ergibt, der zu einem nicht unbeträchtlichen Leistungsabfall des Trockners führen kann. Diese Faserschicht muß also von Zeit zu Zeit oder laufend beseitigt werden, je nach Anfall der Verunreinigungen. Das geschieht erfindungsgemäß mittels einer am Sieb 14 vorzugsweise verschiebbar angeordneten Blasdüse , die mit irgendeiner Blas- oder Druckeinrichtung für das Reinigungsmedium verbunden ist.A fiber trap screen 14 is arranged in front of the heating register 13, by means of which the lint detached from the treatment agent from the material web 24 is prevented from entering the narrow channels of the heating register. If there is a lot of fluff, a more or less thick layer of fluff builds up on the sieve, which results in a strong increase in flow resistance, which can lead to a not inconsiderable drop in the performance of the dryer. This fiber layer must therefore be removed from time to time or continuously, depending on the amount of contamination. This is done according to the invention by means of a blowing nozzle which is preferably displaceably arranged on the sieve 14 and which is connected to some blowing or printing device for the cleaning medium.

In den Fig. 3 und 4 ist die sektionsweise oder felderweise Anordnung von umlaufenden Siebbändern 19 in einem Trocknergehäuse 10 und die Anordnung eines einzigen Siebbandes 19 für den gesamten Trockner angedeutet. In den dargestellten Beispielen sind die Siebbänder noch mit zusätzlichen Bürstenreinigungsvorrichtungen 20 versehen.3 and 4, the section-by-section or field-by-section arrangement of circulating sieve belts 19 in a dryer housing 10 and the arrangement of a single sieve belt 19 for the entire dryer are indicated. In the examples shown, the sieve belts are also provided with additional brush cleaning devices 20.

Fig. 5 läßt die Druckmittelreinigung in vergrößerter Darstellund erkennen. Wie man sieht,erfolgt die Siebreinigung hier außerhalb des eigentlichen Trocknergehäuses 10. Die Zuströmrichtung des Trocknungsmediums zum Sieb ist dabei durch Pfeile angedeutet. Die Verunreinigungen liegen also auf der Außenseite des Siebbandes 19. Zum Reinigen ist das Siebband aus dem Behandlungsgehäuse herausgeführt. Man erkennt in der Figur die im dargestellten Fall quer zur Laufrichtung des Siebbandes verschiebliche Blasdüse 15, eine dieser gegenüberliegende Stützwalze 16, sowie einen Auffangbehälter 17 für die vom Sieb abgenommenen Verunreinigungen.Fig. 5 shows the cleaning of the pressure medium in an enlarged representation. As can be seen, the screen is cleaned here outside the actual dryer housing 10. The direction of flow of the drying medium to the screen is indicated by arrows. The contaminants are therefore on the outside of the sieve belt 19. The sieve belt is led out of the treatment housing for cleaning. One can see in the figure the blowing nozzle 15 which is displaceable transversely to the running direction of the sieve belt, a support roller 16 opposite this, and a collecting container 17 for the impurities removed from the sieve.

Zusätzlich ist in diesem Ausführungsbeispiel der Erfindung noch ein Strahlungsheizkörper 18 für das Siebband vorgesehen, um die Temperatur des Siebbandes auf dėr für die Entfernung der Avivagen optimalen Temperatur zu halten.In addition, in this exemplary embodiment of the invention, a radiant heater 18 is also provided for the sieve belt in order to keep the temperature of the sieve belt at the optimum temperature for the removal of the additives.

Claims (15)

Vorrichtung zur Behandlung von laufenden Warenbahnen, wie Textilbahnen oder dergl., insbes. Trockner, mit wiederholter Zu- und Abführung des luft-, gas- oder dampfförmigen Behandlungsmittels im Umlauf auf und von den Warenbahnen, bei der das umlaufende Behandlungsmittel vor der Wiederzuführung auf die Warenbahn zur Abscheidung von bei der Behandlung von der Warenbahn mitgerissenen Verunreinigungen des Behandlungsmittels über Siebe geführt wird, dadurch gekennzeichnet, daß die Siebe (10,11) mit Reinigungsdüsen (12) für die Siebe in Verbindung stehen, durch die den Sieben Reinigungsmittel von der der Zuströmseite des Behandlungsmittels zu der zu behandelnden Warenbahn (15) abgewandten Seite der Siebe mit hohem Druck zugeführt wird.Device for the treatment of running material webs, such as textile webs or the like, in particular dryer, with repeated supply and discharge of the air, gaseous or vaporous treatment agent in circulation on and from the material webs, in which the circulating treatment agent before being returned to the Material web for separating contaminants of the treatment agent entrained in the treatment from the material web is passed through sieves, characterized in that the sieves (10, 11) are connected to cleaning nozzles (12) for the sieves, through which the seven cleaning agents are removed from the The inflow side of the treatment agent is fed to the side of the sieves facing away from the web (15) to be treated at high pressure. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß auf der den Reinigungsdüsen (12) für die Siebe (10,11) gegenüberliegenden bzw. abgewandten Seite der Siebe Auffangvorrichtungen (13) für die von den Sieben entfernten Verunreinigungen angeordnet sind.Device according to claim 1, characterized in that collecting devices (13) for the impurities removed from the screens are arranged on the side of the screens opposite or facing away from the cleaning nozzles (12) for the screens (10, 11). Vorrichtung nach Anspruch 1 und 2, dadurch gekennzeichnet, daß auf der den Reinigungsdüsen (12) für die Siebe (10,11) gegenüberliegenden bzw. abgewandten Seite der Siebe an den Sieben anliegende umlaufende Bürsten (14) für die Siebe zusätzlich angebracht sind.Apparatus according to claims 1 and 2, characterized in that on the side of the sieves opposite or facing away from the cleaning nozzles (12) for the sieves (10, 11), additional rotating brushes (14) for the sieves are attached to the sieves. Vorrichtung nach Anspruch 1 bis 3, dadurch gekennzeichnet, daß als durch die Reinigungsdüsen (12) auf die Siebe (10,11) aufgeblasenes Reinigungsmittel Preßluft dient.Apparatus according to claims 1 to 3, characterized in that compressed air is used as the cleaning agent blown through the cleaning nozzles (12) onto the screens (10, 11). Vorrichtung nach Anspruch 1 bis 3, dadurch gekennzeichnet, daß als Reinigungsmittel für die Siebe (10,11) Wasser verwendet wird.Apparatus according to claims 1 to 3, characterized in that water is used as the cleaning agent for the screens (10, 11). Vorrichtung nach Anspruch 5, dadurch gekennzeichnet, daß das Reinigungsmittel aufgeheizt ist.Apparatus according to claim 5, characterized in that the cleaning agent is heated. Vorrichtung nach Anspruch 1 bis 6, dadurch gekennzeichnet, daß die Siebe als über den gesamten Behandlungsraum der Vorrichtung umlaufende endlose Siebbänder (10) ausgebildet sind.Apparatus according to claims 1 to 6, characterized in that the screens are designed as endless screen belts (10) running around the entire treatment area of the device. Vorrichtung nach Anspruch 1 bis 7, dadurch gekennzeichnet, daß die Siebbänder (10,11) zur Zuführung des Reinigungsmittels aus dem eigentlichen Behandlungsraum für die Warenbahnen (15) herausgeführt und die Reinigungsdüsen (12) sowie gegebenenfalls Bürsten (14) unmittelbar hinter dem Austritt der Siebbänder aus dem Behandlungsraum angebracht sind.Apparatus according to claims 1 to 7, characterized in that the sieve belts (10, 11) for supplying the cleaning agent are led out of the actual treatment room for the material webs (15) and the cleaning nozzles (12) and optionally brushes (14) immediately behind the outlet of the Sieve belts from the treatment room are attached. Vorrichtung nach Anspruch 1 bis 8, dadurch gekennzeichnet, daß vor den Reinigungsdüsen (12) sowie gegebenenfalls Bürsten (14) eine zusätzliche Aufheizstrecke für die Siebbänder (10,11) z.B. mit einem Dampf- oder Strahlungsheizkörper (18) für die Siebbänder (10,11) vorgesehen ist.Apparatus according to claims 1 to 8, characterized in that an additional heating section for the sieve belts (10, 11), e.g., in front of the cleaning nozzles (12) and optionally brushes (14). with a steam or radiant heater (18) for the sieve belts (10, 11) is provided. Vorrichtung nach Anspruch 1 bis 9, dadurch gekennzeichnet, daß jeder Sektion bzw. jedem Feld der Vorrichtung ein getrenntes, als umlaufendes Siebband (10) ausgeführtes Sieb zugeordnet ist.Apparatus according to claims 1 to 9, characterized in that each section or each field of the apparatus is assigned a separate sieve designed as a circulating sieve belt (10). Vorrichtung nach Anspruch 1 bis 9, dadurch gekennzeichnet, daß die Siebe als aufrollbare Siebbänder (11) ausgeführt sind.Apparatus according to claims 1 to 9, characterized in that the screens are designed as roll-up screen belts (11). Vorrichtung nach Anspruch 1 bis 11, dadurch gekennzeichnet, daß die Reinigungsdüsen (12) über die Breite der Siebe (10,11) verschieblich sind.Device according to Claims 1 to 11, characterized in that the cleaning nozzles (12) can be displaced across the width of the sieves (10, 11). Vorrichtung nach Anspruch 1 bis 12, dadurch gekennzeichnet, daß die Reinigungsdüsen (12) bzw. die mit diesen verbundenen Blas- bzw. Druckeinrichtungen mit ferngesteuerten Ventilen in Verbindung stehen.Apparatus according to claims 1 to 12, characterized in that the cleaning nozzles (12) or the blowing or pressure devices connected to them are connected to remote-controlled valves. Vorrichtung nach Anspruch 1 bis 13 , dadurch gekennzeichnet, daß die Steueuerung der Ventile in Abhängigkeit vom Strömungswiderstand der zu reinigenden Siebe (10,11) erfolgt.Device according to Claims 1 to 13, characterized in that the control of the valves takes place as a function of the flow resistance of the screens (10, 11) to be cleaned. Vorrichtung nach Anspruch 1 bis 14, dadurch gekennzeichnet,daß die Steuerung der Ventile in Abhängigkeit von der Zeit für jedes der nacheinander zu reinigenden Siebe (10,11) vorgenommen wird.Device according to Claims 1 to 14, characterized in that the valves are controlled as a function of time for each of the screens (10, 11) to be cleaned one after the other.
EP92102564A 1992-02-15 1992-02-15 Apparatus for the thermal treatment of running webs Expired - Lifetime EP0556417B1 (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
ES92102564T ES2074746T3 (en) 1992-02-15 1992-02-15 DEVICE FOR THE HEAT TREATMENT OF CONTINUOUS BANDS OF A MOVING MATERIAL.
AT92102564T ATE123135T1 (en) 1992-02-15 1992-02-15 DEVICE FOR THE HEAT TREATMENT OF RUNNING WEFTS.
DK92102564.9T DK0556417T3 (en) 1992-02-15 1992-02-15 Appliance for heat treatment of running goods
EP92102564A EP0556417B1 (en) 1992-02-15 1992-02-15 Apparatus for the thermal treatment of running webs
DE59202345T DE59202345D1 (en) 1992-02-15 1992-02-15 Device for the heat treatment of running material webs.
DE9301274U DE9301274U1 (en) 1992-02-15 1993-01-30 Device for heat treatment of running webs

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP92102564A EP0556417B1 (en) 1992-02-15 1992-02-15 Apparatus for the thermal treatment of running webs

Publications (2)

Publication Number Publication Date
EP0556417A1 true EP0556417A1 (en) 1993-08-25
EP0556417B1 EP0556417B1 (en) 1995-05-24

Family

ID=8209340

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92102564A Expired - Lifetime EP0556417B1 (en) 1992-02-15 1992-02-15 Apparatus for the thermal treatment of running webs

Country Status (5)

Country Link
EP (1) EP0556417B1 (en)
AT (1) ATE123135T1 (en)
DE (2) DE59202345D1 (en)
DK (1) DK0556417T3 (en)
ES (1) ES2074746T3 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2000061863A1 (en) * 1999-04-13 2000-10-19 Metso Paper, Inc. Apparatus for cleaning the drying air of a pulp dryer
WO2002090854A1 (en) * 2001-05-10 2002-11-14 A. Monforts Textilmaschinen Gmbh & Co Device for the thermal treatment of a web of continuous material
CN107804562A (en) * 2017-10-31 2018-03-16 安吉美庭纺织品贸易有限公司 A kind of textile storage box with dehumidifying and dedusting function

Families Citing this family (1)

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Publication number Priority date Publication date Assignee Title
CN107514886A (en) * 2017-09-22 2017-12-26 重庆市鼎盈丝绸有限责任公司 A kind of reeling machine drying system

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DE8502656U1 (en) * 1985-02-01 1985-05-02 Gebr. Bellmer GmbH + Co KG Maschinenfabrik, 7532 Niefern CLEANING DEVICE FOR A CONTINUOUS BELT

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US3955287A (en) * 1974-08-22 1976-05-11 Astec Industries, Inc. Superheat apparatus for drying textile products
US4435909A (en) * 1981-11-30 1984-03-13 Marshall And Williams Company Automatic lint screen
FR2533141A1 (en) * 1982-09-17 1984-03-23 Babcock Textilmasch Filter cleaning equipment for textile drying chamber
GB2147521A (en) * 1983-10-06 1985-05-15 Monforts Gmbh & Co A Fluff filtering device of a drying and/or fixing machine
GB2172693A (en) * 1985-03-20 1986-09-24 Monforts Gmbh & Co A Gas filter
DE8529852U1 (en) * 1985-10-22 1985-12-05 H. Krantz Gmbh & Co, 5100 Aachen Device for the continuous filtering of a gas

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Publication number Priority date Publication date Assignee Title
WO2000061863A1 (en) * 1999-04-13 2000-10-19 Metso Paper, Inc. Apparatus for cleaning the drying air of a pulp dryer
WO2002090854A1 (en) * 2001-05-10 2002-11-14 A. Monforts Textilmaschinen Gmbh & Co Device for the thermal treatment of a web of continuous material
CN107804562A (en) * 2017-10-31 2018-03-16 安吉美庭纺织品贸易有限公司 A kind of textile storage box with dehumidifying and dedusting function

Also Published As

Publication number Publication date
ATE123135T1 (en) 1995-06-15
DE9301274U1 (en) 1993-03-25
DE59202345D1 (en) 1995-06-29
DK0556417T3 (en) 1995-10-16
EP0556417B1 (en) 1995-05-24
ES2074746T3 (en) 1995-09-16

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