EP1010959B1 - Process and apparatus for the heat treatment of a running web by blowing with vapour - Google Patents

Process and apparatus for the heat treatment of a running web by blowing with vapour Download PDF

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Publication number
EP1010959B1
EP1010959B1 EP99122120A EP99122120A EP1010959B1 EP 1010959 B1 EP1010959 B1 EP 1010959B1 EP 99122120 A EP99122120 A EP 99122120A EP 99122120 A EP99122120 A EP 99122120A EP 1010959 B1 EP1010959 B1 EP 1010959B1
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EP
European Patent Office
Prior art keywords
vapour
web
blowing
steam
heat treatment
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
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EP99122120A
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German (de)
French (fr)
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EP1010959A3 (en
EP1010959A2 (en
Inventor
Marc-Aurel Voth
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Moenus Textilmaschinen GmbH
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Moenus Textilmaschinen GmbH
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Priority to DK99122120T priority Critical patent/DK1010959T3/en
Publication of EP1010959A2 publication Critical patent/EP1010959A2/en
Publication of EP1010959A3 publication Critical patent/EP1010959A3/en
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Classifications

    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06B—TREATING TEXTILE MATERIALS USING LIQUIDS, GASES OR VAPOURS
    • D06B23/00—Component parts, details, or accessories of apparatus or machines, specially adapted for the treating of textile materials, not restricted to a particular kind of apparatus, provided for in groups D06B1/00 - D06B21/00
    • D06B23/14—Containers, e.g. vats
    • D06B23/16—Containers, e.g. vats with means for introducing or removing textile materials without modifying container pressure
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06C—FINISHING, DRESSING, TENTERING OR STRETCHING TEXTILE FABRICS
    • D06C7/00—Heating or cooling textile fabrics
    • D06C7/02—Setting
    • 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
    • F26B13/005—Seals, locks, e.g. gas barriers for web drying enclosures
    • 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 method for heat treating a web by inflation of steam according to the preamble of claim 1 and a corresponding device according to the preamble of claim 9.
  • the steam In recirculation method inflated by nozzle boxes on the web and after heating fed again.
  • a suitable device hereinafter referred to as steam dryer, has a vapor-tight housing with an inlet and an outlet slot and a Transport device for the web on. Often there are several treatment fields arranged one behind the other, each field having a device for supplying steam in the Recirculation method is provided.
  • the heat treatment can be a drying, a drying with a fixation or a include pure fixation.
  • all fields of the steam dryer, or only some of the Fields be operated by steam.
  • the to be treated, continuous webs are prefers textile webs. It may also be paper or foil webs or the like.
  • the Webs are by a transport device, for example with tension chains, with a roller conveyor or with a screen belt, promoted by the steam dryer.
  • the Tranportvoriques can also nozzle boxes with air jet nozzles for have free-floating leadership of the web.
  • a device for the thermal treatment of a continuous moving web in which to reduce the ingress of room air into a Treatment chamber on the outside of in a wall of the treatment chamber provided web inlet and outlet openings each a nozzle system as a seal is provided.
  • a nozzle system includes a first adjacent the chamber opening Nozzle pair connected to a negative pressure point of the treatment chamber is, as well as a subsequent second nozzle pair, with the pressure side of a suction side Atmosphere connected fan is connected.
  • drying plant namely for paper webs
  • This drying unit has a dryer with additional nozzle boxes on either side of the entrance and exit slots.
  • the nozzle boxes are provided with nozzle openings, whose blowing direction is directed at an acute angle to the web guide plane on the entrance slit.
  • To the nozzle boxes are profiled in sawtooth shape on average.
  • the penetration of cold Ambient air through the entrance slit should be through a matching vote between Exit velocity of the blow jets and the inside of the dryer existing Prevent negative pressure. The negative pressure prevents the escape of when drying Volatile solvents. In contrast to a steam dryer in overpressure operate.
  • a web passing through the heat treatment devices distinctive heat treatment apparatus namely a hanging loop damper in which the web by means of attached to a revolving chain support rods in freely suspended Grinding is performed by the treatment is known from DE 29 51 299.
  • This Hänschleleifendämpfer is at its located in the bottom insertion slot with an air or Provided steam lock. About the construction and operation of the lock are no Information provided.
  • a generic steam dryer in which the Steam is inflated on a continuously moving web and constantly circulated is the steam flow and also the web speed in a hanging loop damper much lower, i. the requirements for a lock are lower.
  • the object of the invention is a generic method for heat treating a continuous web through the blowing of steam according to the preamble of Claim 1 and a corresponding generic device according to the preamble of Claim 9 further develop so that as possible no air, neither air with Ambient temperature still heated air, penetrates into the interior of the device. Furthermore Condensation of the vapor in the entrance area to the web should be avoided become.
  • steam is inflated in a lock in front of the inlet slot of the housing on the web and behind the inflation of steam gas, namely inflated steam and steam from the interior of the housing, suction t.
  • steam gas namely inflated steam and steam from the interior of the housing, suction t.
  • the air surrounding the web is displaced, thereby preventing the ingress of air into the interior of the housing.
  • the suction of the gas ie the steam, increases the certainty that no air penetrates into the interior of the steam dryer.
  • a suction of the steam behind the steam supply allows inflation of steam at higher pressure .
  • the web is heated by the inflated steam by the large heat capacity of the steam with high efficiency. This further reduces the risk of condensate formation in the entrance area inside the housing.
  • a steam velocity of 20 to 40 m / s according to claim 2 ensures that the on Impact hitting steam displaced the air boundary layer and the entry of air into the Housing is avoided.
  • the web is in a substantially horizontal plane through the inlet slot, the housing and the outlet slot promoted.
  • a horizontal web guide simplifies the transport device and improves the accessibility of the web at the entrance to the housing and at her Exit. Any unevenness on the web caused by its deflection in the Entry and exit through the floor can be avoided.
  • Abdampf which is removed according to claim 5 from the front region of the device, is not or significantly less contaminated with oils of the spin finish than such the back of the device.
  • According to claim 7 may be sucked before the inflation of steam, possibly after the inflation of heated air and behind the inflation of steam in the lock gas.
  • the suction of the gas, ie the optionally heated air or steam further increases the security that no air penetrates into the interior of the steam dryer.
  • According to claim 8 is preferably first heated air in the lock, behind it steam inflated and then sucked off the steam. It can be in the lock supplied steam at a pressure which corresponds to that in the interior of the steam dryer, be supplied.
  • An apparatus according to claim 9 is for carrying out a method according to claim 1, An apparatus according to claim 10 for carrying out a method according to claim 3, An apparatus according to claim 11 for carrying out a method according to claim 4, An apparatus according to claim 12 for carrying out a method according to claim 5, An apparatus according to claim 13 for carrying out a method according to claim 6, an apparatus according to claim 14 for carrying out a method according to claim 7 and An apparatus according to claim 15 for carrying out a method according to claim 8, especially suitable.
  • Slot nozzles allow a particularly intensive contact of the Steam or the heated air with the web and a good heat transfer.
  • Figure 1 shows the schematic representation of a side view of the first three fields of a Steam dryer according to the invention with a lock and connected to the lock Cables.
  • the lock is in an enlarged view in Figure 2 with reference to a longitudinal section and in Figure 3 can be seen with reference to a cross section along the line AA of Figure 2.
  • a device in other words an inventive Steam dryer, has a vapor-tight, heat-insulated housing 1 with an inlet slot. 2 and an exit slot, not shown in FIG. 1, and also not in FIG transport device shown for a transport direction 3 by the steam dryer running web 4 on.
  • At least one field is a steam field 5 with a device for guiding steam in the recirculation method with a dashed line drawn, circulating fan 6 and a heater, not shown, and with Nozzle boxes 7 with aiming at the web 4 nozzle openings.
  • One or more of the remaining fields may include airfields with a device for guiding usually heated air in the recirculation method also with a circulating air fan and with Be nozzle boxes with aiming at the web nozzle openings.
  • all six fields are steam fields 5, in each of which several, for Example two, above and below the web 4, across the web 4 extending nozzle boxes 7 are arranged. From each steam field 5 goes one Steam discharge line 8, wherein the steam discharge lines 8 of the rear panels in a Manifold 9 open. The manifold 9 leads to a vent fan 10th
  • the inlet slot 2 is on a front wall 11 of the housing 1 and the outlet slot a rear wall of the housing 1 attached.
  • the transport device forms inside the Housing 1 for the web 4 a horizontal transport plane on which the inlet slot. 2 and the exit slot is disposed; d. H. It is designed so that the web 4 by the inlet slot 2, through the housing 1 and through the outlet slot on the horizontal Transport level is guided.
  • the transport device can also have a roller conveyor or a screen belt. It can also be means of free floating the Web, such as nozzle boxes with air jets have.
  • a lock In front of the inlet slot 1 is a lock with at least one steam chamber 12 with Nozzle boxes 13 arranged.
  • the lock has a vapor-tight, heat-insulated housing 14, arranged in three in the transport direction 3 in a row Chambers, namely an air chamber 15, the steam chamber 12 and a suction chamber 16th is divided on.
  • One to a steam discharge line 8 of another steam field 5, here the second field, connected steam supply line 18 passes through a heat exchanger 19 through which a Air duct 20 leads from one with its suction side to the outside of the atmosphere Steam dryer open fan 21 goes out and behind the heat exchanger 19 to the Air chamber 15 of the lock is connected.
  • the chambers 15, 12 and 16 of the lock have nozzle boxes.
  • In this example is in each chamber one each, over the entire web width extending nozzle box 23, 13, 24 arranged in mirror image above and below the management level of the web 4.
  • the nozzle boxes 23, 13, 24 are through the housing 14 of the lock, two each Partitions 25, 26 and their bottom plates 27, 28, 29 formed.
  • On their side walls are Openings 30 31, 32 are provided.
  • the openings 30 31, 32 of the two opposite Nozzle boxes 23, 13, 24 of a chamber 15, 12, 16 are each, for example by a line, not shown, connected together. In the respective line can the the chambers 15, 12, 16 connected lines, namely the air line 21, the Steam supply line 17 and suction 22 open.
  • the nozzle boxes 23 and 13 of the air chamber 15 and the steam chamber 12 point to the Bottom plates 27, 28 fixed slot nozzles 33, 34, wherein the slot nozzles 34 of the Düsenhimsten 13 of the steam chamber 12 obliquely, against the transport direction 3 on the Web 4 are directed.
  • the bottom plate 29 of the suction chamber 16 has Intake openings 35, for example, round holes on.
  • the floor panel 29 can be perforated be.
  • the slot nozzles 33, 34 each have two side plates 35, 36 and their slots dividing Baffles 37 on.
  • the side blanks 35, 36 extend over a width that at least the maximum width of the web 4 corresponds; d. H. usually over the entire length of the Nozzle boxes 23 and 13.
  • the baffles 37 are arranged parallel to the transport direction 3 and divide the slots into equally sized flow openings. They serve the homogenization the flow of air and steam on the web 4.
  • the lock with the three chambers 15, 12 and 16 extends over the entire Web width; their length is about 1 m and their total height about 0.8 m.
  • the steam in the steam fields 5 conducted in the recirculation method, wherein the continuous web 4 by the on the Web 4 directed nozzle openings of the nozzle boxes 7 vapor inflated and the Steam after contact with the web 4 as Abdampf using the circulating air fan dissipated, heated by the heater back to the desired temperature and is fed again.
  • the steam is after a start-up phase, in which the superheated steam from outside is supplied, constantly generated by drying the web 4. It is in the Interior of the housing 1 in front of the inlet slot 2 and in front of the outlet slot an overpressure maintained.
  • a portion of the steam is after contact with the web 4 as Abdampf by the Steam outlet lines 8 deducted.
  • the amount of withdrawn Abdampfes can the leaked from the inlet slot and from the outlet slot Steam quantity to be kept at certain levels.
  • Steam can in the steam chamber 12 with the pressure of about 0.2 bar, for example, 0.5 bar, over the pressure in the device is inflated.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Drying Of Solid Materials (AREA)

Abstract

Continuous material (4) is steam treated in a chamber (1) where steam is circulated under positive pressure. The material enters through an inlet slot (2) which is preceded by a lock where steam is blown (12) on to the material (4), preferably at a speed of 20 to 40 m/sec. The material (4) runs horizontally and the lock can include suction (16) and hot air blowing (15). An Independent claim is also included for steam treatment equipment with a lock at the inlet slot (2), incorporating a steam chamber (12) with jet manifold and steam supply (17). An initial air chamber (15) where hot air is blown on the material and a suction chamber (16) for removing exhaust steam is also fitted.

Description

Die Erfindung betrifft ein Verfahren zum Wärmebehandeln einer Warenbahn durch Aufblasen von Dampf gemäß dem Oberbegriff des Anspruchs 1 und eine entsprechende Vorrichtung gemäß dem Oberbegriff des Anspruchs 9.The invention relates to a method for heat treating a web by inflation of steam according to the preamble of claim 1 and a corresponding device according to the preamble of claim 9.

Bei einem Verfahren zum Wärmebehandeln einer durchlaufenden Warenbahn wird der Dampf im Umluftverfahren durch Düsenkästen auf die Warenbahn aufgeblasen und nach Erwärmung erneut zugeführt. Eine dazu geeignete Vorrichtung, im folgenden Dampftrockner genannt, weist ein dampfdichtes Gehäuse mit einem Einlauf- und einem Auslaufschlitz und eine Transportvorrichtung für die Warenbahn auf. Häufig sind mehrere Behandlungsfelder hinteinander angeordnet, wobei jedes Feld mit einer Vorrichtung zu Zufuhr von Dampf im Umluftverfahren versehen ist.In a method for heat treating a continuous web, the steam In recirculation method inflated by nozzle boxes on the web and after heating fed again. A suitable device, hereinafter referred to as steam dryer, has a vapor-tight housing with an inlet and an outlet slot and a Transport device for the web on. Often there are several treatment fields arranged one behind the other, each field having a device for supplying steam in the Recirculation method is provided.

Die Wärmebehandlung kann eine Trocknung, eine Trocknung mit einer Fixierung oder eine reine Fixierung umfassen. Dabei können alle Felder des Dampftrockners, oder nur einige der Felder, mit Dampf betrieben werden. Die zu behandelnden, durchlaufenden Warenbahnen sind bevorzugt Textilbahnen. Es können auch Papier- oder Folienbahnen oder dergleichen sein. Die Warenbahnen werden durch eine Transportvorrichtung, zum Beispiel mit Spannketten, mit einem Rollengang oder mit einem Siebband, durch den Dampftrockner gefördert. Die Tranportvorrichtung kann auch mit Luftkissendüsen versehende Düsenkästen zur freischwebenden Führung der Warenbahn aufweisen.The heat treatment can be a drying, a drying with a fixation or a include pure fixation. In this case, all fields of the steam dryer, or only some of the Fields, be operated by steam. The to be treated, continuous webs are prefers textile webs. It may also be paper or foil webs or the like. The Webs are by a transport device, for example with tension chains, with a roller conveyor or with a screen belt, promoted by the steam dryer. The Tranportvorrichtung can also nozzle boxes with air jet nozzles for have free-floating leadership of the web.

Die Vorteile einer Wärmbehandlung, insbesondere einer Trocknung mit reinem Heißdampf, wie die besondere Wirtschaftlichkeit und die Qualitätsverbesserung, sind bereits in dem Buch "Trockner und Trocknungsverfahren" von K. Kröll, Springerverlag 1959 beschrieben. Diese Vorteile in der Praxis zu nutzen, stößt auf die Schwierigkeit, einen Heißdampftrockner so dicht zu bauen, daß keine Luft eindringt. Kritische Stellen, an denen erfahrungsgemäß Leckströme auftreten können, sind die Ein- und Auslaufschlitze sowie alle anderen Öffnungen zum Beispiel für Leitungen, Wellen oder Türen.The advantages of a heat treatment, in particular a drying with pure superheated steam, such as the special economy and the quality improvement, are already in the book "Drying and Drying Process" by K. Kröll, Springerverlag 1959 described. These Benefits in practice, encounters the difficulty of a steam dryer so dense to build that no air penetrates. Critical points where experience shows leakage currents can occur, for example, the inlet and outlet slots and all other openings for cables, shafts or doors.

Bei einer aus der DE 195 46 344 bekannten gattungsgemäßen Vorrichtung und einem entsprechenden Verfahren wird das Eindringen von Luft weitgehend unterdrückt, indem alle kritischen Stellen in den Boden des Gehäuses verlegt sind und beiderseits des Einlaufschlitzes und des Auslaufschlitzes in das Gehäuse ragende Saugkästen angeordnet sind. Der Dampf erzeugt im gesamten Innenraum des Gehäuses einen Überdruck, der in der Nähe des Bodens besonders hoch ist. Auch in den Bereichen, die saugseitig mit Gebläsen in Verbindung stehen stellt sich relativ zur Atmosphäre ein geringer Überdruck ein. Überschußdampf entweicht durch den Einlaufschlitz und den Auslaufschlitz und wird durch die Saugkästen abgezogen.In a generic device known from DE 195 46 344 and a According to appropriate methods, the ingress of air is largely suppressed by all critical points are laid in the bottom of the housing and on both sides of the inlet slot and the outlet slot are arranged in the housing projecting suction boxes. The steam creates an overpressure in the entire interior of the housing near the bottom is particularly high. Also in the areas that are connected with blowers on the intake side A small overpressure occurs relative to the atmosphere. Excess steam escapes through the inlet slot and the outlet slot and is withdrawn through the suction boxes.

Problematisch ist, daß die durch den Einlaufschlitz geförderte Warenbahn wesentlich kälter ist, als der Dampf im Innenraum des Gehäuses. Dadurch kann es zu einer unerwünschten Kondensation des Dampfes im Eingangsbereich kommen.The problem is that the conveyed through the feed slot web is much colder, as the vapor in the interior of the housing. This can make it an undesirable Condensation of the steam in the entrance area come.

Aus der DE 27 27 971 ist eine Vorrichtung zum thermischen Behandeln einer kontinuierlich bewegten Warenbahn bekannt, bei der zur Reduzierung des Eintritts von Raumluft in eine Behandlungskammer auf der Außenseite von in einer Wand der Behandlungskammer vorgesehenen Warenbahnein- und austrittsöffnungen je ein Düsensystem als Dichtung vorgesehen ist. Ein Düsensystem enthält ein der Kammeröffnung benachbartes erstes Düsenpaar, das mit einer an Unterdruck liegenden Stelle der Behandlungskammer verbunden ist, sowie ein hierauf folgendes zweites Düsenpaar, das mit der Druckseite eines saugseitig an Atmosphäre angeschlossenen Ventilators verbunden ist.From DE 27 27 971 a device for the thermal treatment of a continuous moving web, in which to reduce the ingress of room air into a Treatment chamber on the outside of in a wall of the treatment chamber provided web inlet and outlet openings each a nozzle system as a seal is provided. A nozzle system includes a first adjacent the chamber opening Nozzle pair connected to a negative pressure point of the treatment chamber is, as well as a subsequent second nozzle pair, with the pressure side of a suction side Atmosphere connected fan is connected.

Die Anordnung eines aus der DE-A 27 27 971 bekannten Düsensystem in einem Dampftrockner vorzusehen, ist schon deshalb nicht möglich, weil im Dampftrockner mit Überdruck gearbeitet werden soll. Insbesondere würden Stellen im Innem eines Dampftrockners mit Unterdruck die Gefahr von Leckströmen erhöhen. Durch die Verbindung eines ersten Düsenpaars mit einer an Unterdruck liegenden Stelle im Dampftrockner würde Luft, die über den Ventilator aus der Atmosphäre angesaugt und im zweiten Düsenpaar zugeführt wird, in den Dampftrockner gelangen. Ein Eindringen von Raumluft könnte daher nicht sicher verhindert werden. Nachteilig ist auch, daß die durch die Warenbahneintrittöffnung geförderte, kühle Warenbahn ebenfalls eine unerwünschte Kondensation des Dampfes verursachen würde.The arrangement of a known from DE-A 27 27 971 nozzle system in a steam dryer Provide, is not possible because already worked in the steam dryer with overpressure shall be. In particular, places inside a steam dryer with vacuum would be the Increase the risk of leakage. By connecting a first pair of nozzles with a Vacuum lying in the steam dryer would take air out of the fan Atmosphere sucked and fed in the second nozzle pair, in the steam dryer reach. Ingress of air could therefore not be prevented safely. adversely is also that the promoted by the web entrance opening, cool web also would cause an undesirable condensation of the steam.

Eine weitere Trocknungsanlage, und zwar für Papierbahnen, ist aus der DE-A 42 26 107 bekannt. Diese Trocknungsanlage weist einen Trockner mit zusätzlichen Düsenkästen beiderseits des Eintritts- und des Austrittsschlitzes auf. Zu den Düsenkästen sind Zuleitungen für vorgewärmte Behandlungsluft geführt. Die Düsenkästen sind mit Düsenöffnungen versehen, deren Blasrichtung spitzwinklig zur Bahnführungsebene auf den Eintrittsspalt gerichtet ist. Dazu sind die Düsenkästen im Schnitt sägezahnförmig profiliert. Das Eindringen von kalter Umgebungsluft durch den Eintrittsschlitz soll sich durch eine passende Abstimmung zwischen Austrittsgeschwindigkeit der Blasstrahlen und dem im Innern des Trockners bestehenden Unterdruck unterbinden lassen. Der Unterdruck verhindert das Entweichen von beim Trocknen flüchtig werdenden Lösemitteln. Im Gegensatz dazu soll ein Dampftrockner im Überdruck betrieben werden. Daher kann das aus der DE-A 42 26 107 bekannte Verfahren, das eine Vorwärmung der Warenbahn und eine Unterbindung des Eindringens von kalter Umgebungsluft ermöglicht, nicht für einen Dampftrockner angewandt werden. Nachteilig ist insbesondere, daß in jedem Fall vorgewärmte Behandlungsluft in den Trockner eindringt. In einen Dampftrockner sollte überhaupt keine Luft eindringen.Another drying plant, namely for paper webs, is known from DE-A 42 26 107 known. This drying unit has a dryer with additional nozzle boxes on either side of the entrance and exit slots. To the nozzle boxes are supply lines for preheated treatment air. The nozzle boxes are provided with nozzle openings, whose blowing direction is directed at an acute angle to the web guide plane on the entrance slit. To the nozzle boxes are profiled in sawtooth shape on average. The penetration of cold Ambient air through the entrance slit should be through a matching vote between Exit velocity of the blow jets and the inside of the dryer existing Prevent negative pressure. The negative pressure prevents the escape of when drying Volatile solvents. In contrast to a steam dryer in overpressure operate. Therefore, the method known from DE-A 42 26 107, a Preheating the web and a prevention of the penetration of cold ambient air allows not to be used for a steam dryer. A particular disadvantage is that In any case, preheated treatment air penetrates into the dryer. In a steam dryer should not penetrate any air.

Eine sich von den Vorrichtungen zur Wärmebehandlung durchlaufender Bahnen unterscheidende Wärmebehandlungsvorrichtungi, nämlich ein Hängeschleifendämpfer, bei dem die Warenbahn mittels an einer umlaufenden Kette befestigten Tragstäben in frei hängenden Schleifen durch die Behandlung geführt wird, ist aus der DE 29 51 299 bekannt. Dieser Hängeschleifendämpfer ist an seinem im Boden befindlichen Einführschlitz mit einer Luft- bzw. Dampfschleuse versehen. Über den Aufbau und das Betreiben der Schleuse sind keine Angaben gemacht. Im Gegensatz zu einem gattungsgemäßen Dampftrockner, bei dem der Dampf auf eine kontinuierlich bewegte Warenbahn aufgeblasen und ständig umgewälzt wird, ist die Dampfströmung und auch die Warenbahngeschwindigkeit in einem Hängeschleifendämpfer wesentlich geringer, d.h. auch die Anforderungen an eine Schleuse sind geringer.A web passing through the heat treatment devices distinctive heat treatment apparatus, namely a hanging loop damper in which the web by means of attached to a revolving chain support rods in freely suspended Grinding is performed by the treatment is known from DE 29 51 299. This Hänschleleifendämpfer is at its located in the bottom insertion slot with an air or Provided steam lock. About the construction and operation of the lock are no Information provided. In contrast to a generic steam dryer, in which the Steam is inflated on a continuously moving web and constantly circulated is the steam flow and also the web speed in a hanging loop damper much lower, i. the requirements for a lock are lower.

Aufgabe der Erfindung ist, ein gattungsgemäßes Verfahren zum Wärmebehandeln einer durchlaufenden Warenbahn durch Aufblasen von Dampf gemäß dem Oberbegriff des Anspruchs 1 und eine entsprechende gattungsgemäße Vorrichtung gemäß dem Oberbegriff des Anspruchs 9 so weiterzuentwickeln, daß möglichst keine Luft, weder Luft mit Umgebungstemperaturnoch erwärmte Luft, in das Innere der Vorrichtung eindringt. Außerdem sollte eine Kondensation des Dampfes im Eingangsbereich an der Warenbahn vermieden werden.The object of the invention is a generic method for heat treating a continuous web through the blowing of steam according to the preamble of Claim 1 and a corresponding generic device according to the preamble of Claim 9 further develop so that as possible no air, neither air with Ambient temperature still heated air, penetrates into the interior of the device. Furthermore Condensation of the vapor in the entrance area to the web should be avoided become.

Die Aufgabe wird durch die Merkmale der Ansprüche 1 und 9 gelöst.The object is solved by the features of claims 1 and 9.

Erfindungsgemäß wird zusätzlich Dampf in einer Schleuse vor dem Einlaufschlitz des Gehäuses auf die Warenbahn aufgeblasen und hinter dem Aufblasen von Dampf Gas, und zwar aufgeblasener Dampf und Dampf aus dem Inneren des Gehäuses, abgesaugt. Durch den Dampf wird die die Warenbahn umgebende Luft verdrängt, wodurch ein Eindringen von Luft in das Innere des Gehäuses verhindert wird. Das Absaugen des Gases, d. h. des Dampfes, vergrößert die Sicherheit, dass keine Luft in das Innere des Dampftrockners eindringt. Ein Absaugen des Dampfes hinter der Dampfzufuhr ermöglicht ein Aufblasen von Dampf mit höherem Druck. Außerdem wird die Warenbahn durch den aufgeblasenen Dampf durch die große Wärmekapazität des Dampfes mit hoher Effizienz aufgewärmt. Dies reduziert die Gefahr einer Kondensatbildung im Eingangsbereichs im Innern des Gehäuses weiter.According to the invention additionally steam is inflated in a lock in front of the inlet slot of the housing on the web and behind the inflation of steam gas, namely inflated steam and steam from the interior of the housing, suction t. By the steam, the air surrounding the web is displaced, thereby preventing the ingress of air into the interior of the housing. The suction of the gas, ie the steam, increases the certainty that no air penetrates into the interior of the steam dryer. A suction of the steam behind the steam supply allows inflation of steam at higher pressure . In addition, the web is heated by the inflated steam by the large heat capacity of the steam with high efficiency. This further reduces the risk of condensate formation in the entrance area inside the housing.

Eine Dampfgeschwindigkeit von 20 bis 40 m/s gemäß Anspruch 2 stellt sicher, daß der auf die Warenbahn auftreffende Dampf die Luftgrenzschicht verdrängt und der Eintritt von Luft in das Gehäuse vermieden wird.A steam velocity of 20 to 40 m / s according to claim 2 ensures that the on Impact hitting steam displaced the air boundary layer and the entry of air into the Housing is avoided.

Im Gegensatz zu dem aus der DE 195 46 344 bekannten Verfahren, bei dem die Warenbahn durch den Boden in das Gehäuse hinein und aus dem Gehäuse hinausgeführt wird, ermöglicht das erfindungsgemäße Aufblasen von Dampf in der Schleuse eine horizontale Führung der Warenbahn gemäß Anspruch 3. Dabei wird die Warenbahn in einer im wesentlichen horizontalen Ebene durch den Einlaufschlitz, das Gehäuse und den Auslaufschlitz hindurch gefördert. Eine horizontale Warenbahnführung vereinfacht die Transportvorrichtung und verbessert die Zugangsmöglichkeit der Warenbahn am Eintritt in das Gehäuse und an ihrem Austritt. Eventuelle Ungleichmäßigkeiten auf der Warenbahn, die durch ihre Umlenkung beim Ein- und Austritt durch den Boden entstehen können, werden vermieden.In contrast to the method known from DE 195 46 344, in which the web is passed through the floor into the housing and out of the housing allows the inventive inflation of steam in the lock a horizontal guide the Web according to claim 3. In this case, the web is in a substantially horizontal plane through the inlet slot, the housing and the outlet slot promoted. A horizontal web guide simplifies the transport device and improves the accessibility of the web at the entrance to the housing and at her Exit. Any unevenness on the web caused by its deflection in the Entry and exit through the floor can be avoided.

Vorteilhafterweise wird gemäß Anspruch 4 ein Teil des Abdampfes in der Schleuse zuzuführen. Dies erspart eine zusätzliche Dampfquelle.Advantageously, according to claim 4, a part of the exhaust steam in the lock supply. This saves an additional source of steam.

Abdampf, der gemäß Anspruch 5 aus dem vorderen Bereich der Vorrichtung entnommen wird, ist nicht oder wesentlich weniger mit Ölen der Präparationsmittel kontaminiert als solcher aus dem hinteren Bereich der Vorrichtung.Abdampf, which is removed according to claim 5 from the front region of the device, is not or significantly less contaminated with oils of the spin finish than such the back of the device.

Gemäß Anspruch 6 wird in der Schleuse vor dem Aufblasen von Dampf erwärmte Luft auf die Warenbahn aufgeblasen. Dies führt zu einer Vorerwärmung der Warenbahn und verhindert die Berührung von aus der Schleuse austretenden Dampfes mit kalter Umgebungsluft, was zu einer Kondensation des Dampfes führen würde.According to claim 6 heated in the lock before the inflation of steam on the air Web inflated. This leads to a preheating of the web and prevents the Touching of the steam exiting the lock with cold ambient air, resulting in a Condensation of the steam would result.

Gemäß Anspruch 7 kann vor dem Aufblasen von Dampf ggf. nach dem Aufblasen von erwärmter Luft und hinter dem Aufblasen von Dampf in der Schleuse Gas abgesaugt werden. Das Absaugen des Gases, d. h. der ggf. erwärmten Luft oder des Dampfes vergrößert die Sicherheit weiter, daß keine Luft in das Innere des Dampftrockners eindringt.According to claim 7 may be sucked before the inflation of steam, possibly after the inflation of heated air and behind the inflation of steam in the lock gas. The suction of the gas, ie the optionally heated air or steam further increases the security that no air penetrates into the interior of the steam dryer.

Gemäß Anspruch 8 wird in der Schleuse bevorzugt zunächst erwärmte Luft, dahinter Dampf aufgeblasen und anschließend der Dampf abgesaugt. Dabei kann der in der Schleuse zugeführte Dampf mit einem Druck, der dem im Innern des Dampftrockners entspricht, zugeführt werden.According to claim 8 is preferably first heated air in the lock, behind it steam inflated and then sucked off the steam. It can be in the lock supplied steam at a pressure which corresponds to that in the interior of the steam dryer, be supplied.

Eine Vorrichtung gemäß Anspruch 9 ist zur Durchführung eines Verfahrens nach Anspruch 1, eine Vorrichtung gemäß Anspruch 10 zur Durchführung eines Verfahrens nach Anspruch 3, eine Vorrichtung gemäß Anspruch 11 zur Durchführung eines Verfahrens nach Anspruch 4, eine Vorrichtung gemäß Anspruch 12 zur Durchführung eines Verfahrens nach Anspruch 5, eine Vorrichtung gemäß Anspruch 13 zur Durchführung eines Verfahrens nach Anspruch 6, eine Vorrichtung gemäß Anspruch 14 zur Durchführung eines Verfahrens nach Anspruch 7 und eine Vorrichtung gemäß Anspruch 15 zur Durchführung eines Verfahren nach Anspruch 8, besonders gut geeignet.An apparatus according to claim 9 is for carrying out a method according to claim 1, An apparatus according to claim 10 for carrying out a method according to claim 3, An apparatus according to claim 11 for carrying out a method according to claim 4, An apparatus according to claim 12 for carrying out a method according to claim 5, An apparatus according to claim 13 for carrying out a method according to claim 6, an apparatus according to claim 14 for carrying out a method according to claim 7 and An apparatus according to claim 15 for carrying out a method according to claim 8, especially suitable.

Schlitzdüsen gemäß Anspruch 16 ermöglichen einen besonders intensiven Kontakt des Dampfes bzw. der erwärmten Luft mit der Warenbahn und einen guten Wärmeübergang.Slot nozzles according to claim 16 allow a particularly intensive contact of the Steam or the heated air with the web and a good heat transfer.

Die Erfindung wird anhand eines in der Zeichnung schematisch dargestellten Beispiels weiter erläutert.The invention will be further explained with reference to an example shown schematically in the drawing explained.

Figur 1 zeigt die schematische Darstellung einer Seitenansicht der ersten drei Felder eines erfindungsgemäßen Dampftrockners mit einer Schleuse und die mit der Schleuse verbundenen Leitungen.Figure 1 shows the schematic representation of a side view of the first three fields of a Steam dryer according to the invention with a lock and connected to the lock Cables.

Die Schleuse ist in einer vergrößerten Darstellung in Figur 2 anhand eines Längsschnitt und in Figur 3 anhand eines Querschnitts gemäß der Linie AA der Figur 2 zu sehen.The lock is in an enlarged view in Figure 2 with reference to a longitudinal section and in Figure 3 can be seen with reference to a cross section along the line AA of Figure 2.

Eine erfindungsgemäße Vorrichtung, mit anderen Worten ein erfindungsgemäßer Dampftrockner, weist ein dampfdichtes, wärmeisoliertes Gehäuse 1 mit einem Einlaufschlitz 2 und einem in Figur 1 nicht dargestellten Auslaufschlitz und eine ebenfalls in Figur 1 nicht dargestellte Transportvorrichtung für eine in Transportrichtung 3 durch den Dampftrockner laufende Warenbahn 4 auf. Es sind mehrere, zum Beispiel sechs Felder, von denen in Figur 1 drei zu sehen sind, hintereinander angeordnet. Mindestens ein Feld ist ein Dampffeld 5 mit einer Vorrichtung zum Führen von Dampf im Umluftverfahren mit einem, gestrichelt eingezeichneten, Umluftventilator 6 und einer nicht dargestellten Heizeinrichtung und mit Düsenkästen 7 mit auf die Warenbahn 4 zielenden Düsenöffnungen.A device according to the invention, in other words an inventive Steam dryer, has a vapor-tight, heat-insulated housing 1 with an inlet slot. 2 and an exit slot, not shown in FIG. 1, and also not in FIG transport device shown for a transport direction 3 by the steam dryer running web 4 on. There are several, for example six fields, of which in Figure 1 three can be seen, arranged one behind the other. At least one field is a steam field 5 with a device for guiding steam in the recirculation method with a dashed line drawn, circulating fan 6 and a heater, not shown, and with Nozzle boxes 7 with aiming at the web 4 nozzle openings.

Eines oder mehrere der übrigen Felder können Luftfelder mit einer Vorrichtung zum Führen von zumeist erhitzter Luft im Umluftverfahren ebenfalls mit einem Umluftventilator und mit Düsenkästen mit auf die Warenbahn zielenden Düsenöffnungen sein.One or more of the remaining fields may include airfields with a device for guiding usually heated air in the recirculation method also with a circulating air fan and with Be nozzle boxes with aiming at the web nozzle openings.

In diesem Beispiel sind alle sechs Felder Dampffelder 5, in denen jeweils mehrere, zum Beispiel zwei, oberhalb und unterhalb der Warenbahn 4, sich quer über die Warenbahn 4 erstreckende Düsenkästen 7 angeordnet sind. Von jedem Dampffeld 5 geht eine Dampfabzugleitung 8 aus, wobei die Dampfabzugleitungen 8 der hinteren Feldern in eine Sammelleitung 9 münden. Die Sammelleitung 9 führt zu einem Abzugventilator 10. In this example, all six fields are steam fields 5, in each of which several, for Example two, above and below the web 4, across the web 4 extending nozzle boxes 7 are arranged. From each steam field 5 goes one Steam discharge line 8, wherein the steam discharge lines 8 of the rear panels in a Manifold 9 open. The manifold 9 leads to a vent fan 10th

Der Einlaufschlitz 2 ist an einer Vorderwand 11 des Gehäuses 1 und der Austrittsschlitz an einer Hinterwand des Gehäuses 1 angebracht. Die Transportvorrichtung bildet im Innern des Gehäuses 1 für die Warenbahn 4 eine horizontale Transportebene, auf der der Einlaufschlitz 2 und der Auslaufschlitz angeordnet ist; d. h. sie ist so ausgebildet, daß die Warenbahn 4 durch den Einlaufschlitz 2, durch das Gehäuse 1 und durch den Auslaufschlitz auf der horizontalen Transportebene geführt ist. Beispielsweise sind bei einer Transportvorrichtung mit Spannkette die durch den Einlaufschlitz, durch das Gehäuse und durch den Auslaufschlitz verlaufenden Spannketten auf einer horizontalen Ebenen angeordnet. Die Transportvorrichtung kann auch einen Rollengang oder ein Siebband aufweisen. Sie kann auch Mittel zum Freischweben der Warenbahn, wie Düsenkästen mit Luftkissendüsen, aufweisen.The inlet slot 2 is on a front wall 11 of the housing 1 and the outlet slot a rear wall of the housing 1 attached. The transport device forms inside the Housing 1 for the web 4 a horizontal transport plane on which the inlet slot. 2 and the exit slot is disposed; d. H. It is designed so that the web 4 by the inlet slot 2, through the housing 1 and through the outlet slot on the horizontal Transport level is guided. For example, in a transport device with tensioning chain through the inlet slot, through the housing and through the outlet slot Clamping chains arranged on a horizontal plane. The transport device can also have a roller conveyor or a screen belt. It can also be means of free floating the Web, such as nozzle boxes with air jets have.

Vor dem Einlaufschlitz 1 ist eine Schleuse mit mindestens einer Dampfkammer 12 mit Düsenkästen 13 angeordnet. In diesem Beispiel weist die Schleuse ein dampfdichtes, wärmeisoliertes Gehäuse 14, das in drei in Transportrichtung 3 hintereinander angeordnete Kammern, nämlich eine Luftkammer 15, die Dampfkammer 12 und eine Absaugkammer 16 unterteilt ist, auf.In front of the inlet slot 1 is a lock with at least one steam chamber 12 with Nozzle boxes 13 arranged. In this example, the lock has a vapor-tight, heat-insulated housing 14, arranged in three in the transport direction 3 in a row Chambers, namely an air chamber 15, the steam chamber 12 and a suction chamber 16th is divided on.

An die Dampfkammer 12 ist eine mit einer Dampfabzugleitung 8 eines vorderen Dampffeldes 5, hier des ersten Feldes, verbundene Dampfzuleitung 17 angeschlossen.To the steam chamber 12 is a with a steam discharge line 8 of a front steam field 5, here the first field, connected steam supply line 17 connected.

Eine an eine Dampfabzugleitung 8 eines anderen Dampffeldes 5, hier des zweiten Feldes, angeschlossene Dampfzuleitung 18 führt durch einen Wärmetauscher 19, durch den auch eine Luftleitung 20 führt, die von einem mit seiner Saugseite zur Atmosphäre außerhalb des Dampftrockners offenen Ventilator 21 ausgeht und hinter dem Wärmetauscher 19 an die Luftkammer 15 der Schleuse angeschlossen ist.One to a steam discharge line 8 of another steam field 5, here the second field, connected steam supply line 18 passes through a heat exchanger 19 through which a Air duct 20 leads from one with its suction side to the outside of the atmosphere Steam dryer open fan 21 goes out and behind the heat exchanger 19 to the Air chamber 15 of the lock is connected.

An die Absaugkammer 16 ist eine Absaugleitung 22, die zu einem nicht dargestellten Ventilator führt, angeschlossen.To the suction chamber 16 is a suction line 22 leading to a fan, not shown leads, connected.

Die Kammern 15, 12 und 16 der Schleuse weisen Düsenkästen auf. In diesem Beispiel ist in jeder Kammer je ein, sich über die gesamte Warenbahnbreite erstreckender Düsenkasten 23, 13, 24 spiegelbildlich oberhalb und unterhalb der Führungsebene der Warenbahn 4 angeordnet. Die Düsenkästen 23, 13, 24 werden durch das Gehäuse 14 der Schleuse, je zwei Zwischenwände 25, 26 und ihre Bodenbleche 27, 28, 29 gebildet. An ihren Seitenwänden sind Öffnungen 30 31, 32 vorgesehen sind. Die Öffnungen 30 31, 32 der beiden gegenüberliegenden Düsenkästen 23, 13, 24 einer Kammer 15, 12, 16 sind jeweils, zum Beispiel durch eine nicht dargestellte Leitung, miteinander verbunden. In die jeweilige Leitung können die an die Kammern 15, 12, 16 angeschlossenen Leitungen, nämlich die Luftleitung 21, die Dampfzuleitung 17 und Absaugleitung 22 münden.The chambers 15, 12 and 16 of the lock have nozzle boxes. In this example is in each chamber one each, over the entire web width extending nozzle box 23, 13, 24 arranged in mirror image above and below the management level of the web 4. The nozzle boxes 23, 13, 24 are through the housing 14 of the lock, two each Partitions 25, 26 and their bottom plates 27, 28, 29 formed. On their side walls are Openings 30 31, 32 are provided. The openings 30 31, 32 of the two opposite Nozzle boxes 23, 13, 24 of a chamber 15, 12, 16 are each, for example by a line, not shown, connected together. In the respective line can the the chambers 15, 12, 16 connected lines, namely the air line 21, the Steam supply line 17 and suction 22 open.

Die Düsenkästen 23 und 13 der Luftkammer 15 und der Dampfkammer 12 weisen an den Bodenblechen 27, 28 befestigte Schlitzdüsen 33, 34 auf, wobei die Schlitzdüsen 34 der Düsenkästen 13 der Dampfkammer 12 schräg, entgegen der Transportrichtung 3 auf die Warenbahn 4 gerichtet sind. Das Bodenblech 29 der Absaugkammer 16 weist Ansaugöffnungen 35, beispielsweise runde Bohrungen, auf. Das Bodenblech 29 kann perforiert sein.The nozzle boxes 23 and 13 of the air chamber 15 and the steam chamber 12 point to the Bottom plates 27, 28 fixed slot nozzles 33, 34, wherein the slot nozzles 34 of the Düsenkästen 13 of the steam chamber 12 obliquely, against the transport direction 3 on the Web 4 are directed. The bottom plate 29 of the suction chamber 16 has Intake openings 35, for example, round holes on. The floor panel 29 can be perforated be.

Die Schlitzdüsen 33, 34 weisen jeweils zwei Seitenbleche 35, 36 und ihre Schlitze unterteilende Leitbleche 37 auf. Die Seitenbleiche 35, 36 erstrecken sich über eine Breite, die mindestens der maximalen Breite der Warenbahn 4 entspricht; d. h. üblicherweise über die gesamte Länge der Düsenkästen 23 und 13. Die Leitbleche 37 sind parallel zur Transportrichtung 3 angeordnet und unterteilen die Schlitze in gleich große Strömungsöffnungen. Sie dienen der Vergleichmäßigung der Strömung der Luft und des Dampfes auf die Warenbahn 4.The slot nozzles 33, 34 each have two side plates 35, 36 and their slots dividing Baffles 37 on. The side blanks 35, 36 extend over a width that at least the maximum width of the web 4 corresponds; d. H. usually over the entire length of the Nozzle boxes 23 and 13. The baffles 37 are arranged parallel to the transport direction 3 and divide the slots into equally sized flow openings. They serve the homogenization the flow of air and steam on the web 4.

Die Schleuse mit den drei Kammern 15, 12 und 16 erstreckt sich über die gesamte Warenbahnbreite; ihre Länge beträgt etwa 1 m und ihre gesamte Höhe etwa 0,8 m.The lock with the three chambers 15, 12 and 16 extends over the entire Web width; their length is about 1 m and their total height about 0.8 m.

Bei einem erfindungsgemäßen Verfahren zum Trocknen wird der Dampf in den Dampffeldern 5 im Umluftverfahren geführt, wobei auf die durchlaufende Warenbahn 4 durch die auf die Warenbahn 4 gerichteten Düsenöffnungen der Düsenkästen 7 Dampf aufgeblasen und der Dampf nach Kontakt mit der Warenbahn 4 als Abdampf mit Hilfe des Umluftventilators abgeführt, durch die Heizeinrichtung wieder auf die gewünschte Temperatur erwärmt und erneut zugeführt wird. Der Dampf wird nach einer Anfahrphase, in der der Heißdampf von außen zugeführt wird, ständig durch Trocknung der Warenbahn 4 erzeugt. Dabei wird im Innenraum des Gehäuses 1 vor dem Einlaufschlitz 2 und vor dem Auslaufschlitz ein Überdruck aufrechterhalten.In a method according to the invention for drying, the steam in the steam fields 5 conducted in the recirculation method, wherein the continuous web 4 by the on the Web 4 directed nozzle openings of the nozzle boxes 7 vapor inflated and the Steam after contact with the web 4 as Abdampf using the circulating air fan dissipated, heated by the heater back to the desired temperature and is fed again. The steam is after a start-up phase, in which the superheated steam from outside is supplied, constantly generated by drying the web 4. It is in the Interior of the housing 1 in front of the inlet slot 2 and in front of the outlet slot an overpressure maintained.

Ein Teil des Dampfes wird nach dem Kontakt mit der Warenbahn 4 als Abdampf durch die Dampfabzugleitungen 8 abgezogen. Durch Steuerung der Menge des abgezogenen Abdampfes kann die aus dem Einlaufschlitz und aus dem Auslaufschlitz ausgetretene Dampfmenge auf bestimmten Werten gehalten werden.A portion of the steam is after contact with the web 4 as Abdampf by the Steam outlet lines 8 deducted. By controlling the amount of withdrawn Abdampfes can the leaked from the inlet slot and from the outlet slot Steam quantity to be kept at certain levels.

In der Schleuse vor dem Einlaufschlitz 2 wird in der Dampfkammer 12 gleichmäßig durch die Schlitzdüsen 34 Dampf auf die Warenbahn 3 aufgeblasen. Dieser Dampf ist ein Teilstrom des nach dem Kontakt mit der Warenbahn 4 als Abdampf aus den Dampffeldern 5 abgezogenen Abdampfes, und zwar ein Teilstrom des aus dem ersten Dampffeld 5 abgezogenen und über die Dampfzuleitung 17 zugeführten Abdampfes.In the lock in front of the inlet slot 2 is in the steam chamber 12 evenly through the Slot nozzles 34 inflated steam on the web 3. This steam is a partial flow of withdrawn after contact with the web 4 as exhaust steam from the steam fields 5 Abdampfes, namely a partial flow of the withdrawn from the first steam field 5 and over the steam supply 17 supplied Abdampfes.

In der Schleuse wird vor der Zufuhr von Dampf in der vorgelagerten Luftkammer 15 auf die Warenbahn 4 gleichmäßig durch die Schlitzdüsen 33 erwärmte Luft aufgeblasen. Die erwärmte Luft wird durch Erwärmen von Frischluft in dem mit Abdampf des zweiten Dampffeldes 5 gespeisten Wärmetauscher 19 erzeugt.In the lock is before the supply of steam in the upstream air chamber 15 on the Web 4 evenly inflated by the slot nozzles 33 heated air. The heated Air is removed by heating fresh air in the exhaust steam of the second steam field 5 fed heat exchanger 19 generates.

Anschließend an die Zufuhr von erwärmter Luft und die Zufuhr von Dampf wird in der Absaugkammer 16 der Schleuse vor dem Einlaufschlitz 2 Dampf aus der Dampfkammer 12 und Dampf aus dem Inneren der Gehäuses 1 in die Absaugkammer 16 abgesaugt.Subsequent to the supply of heated air and the supply of steam is in the Suction chamber 16 of the lock in front of the inlet slot 2 steam from the steam chamber 12 and Steam sucked from the interior of the housing 1 in the suction chamber 16.

Dampf kann in der Dampfkammer 12 mit dem Druck der um 0,2 bar, zum Beispiel 0,5 bar, über den Druck in der Vorrichtung liegt, aufgeblasen werden. Steam can in the steam chamber 12 with the pressure of about 0.2 bar, for example, 0.5 bar, over the pressure in the device is inflated.

Bezugszeichenliste:LIST OF REFERENCE NUMBERS

11
Gehäusecasing
22
Einlaufschlitzinlet slot
33
Transportrichtungtransport direction
44
Warenbahnweb
55
Dampffeldsteam box
66
Umluftventilatorcirculation fan
77
Düsenkastennozzle box
88th
DampfabzugleitungVapor withdrawal conduit
99
Sammelleitungmanifold
1010
Abzugventilatorextractor fan
1111
Vorderwandfront wall
1212
Dampfkammersteam chamber
1313
Düsenkastennozzle box
1414
Gehäuse der SchleuseHousing of the lock
1515
Luftkammerair chamber
1616
Absaugkammersuction
1717
Dampfzuleitungsteam supply
1818
Dampfzuleitungsteam supply
1919
Wärmetauscherheat exchangers
2020
Luftleitungair line
2121
Ventilatorfan
2222
Absaugleitungsuction
2323
Düsenkastennozzle box
2424
Düsenkastennozzle box
2525
Zwischenwandpartition
2626
Zwischenwandpartition
2727
Bodenblechfloor panel
2828
Bodenblechfloor panel
2929
Bodenblechfloor panel
3030
Öffnungopening
3131
Öffnungopening
3232
Öffnungopening
3333
Schlitzdüseslot
3434
Schlitzdüseslot
3535
SeitenblechPage sheet
3636
SeitenblechPage sheet
3737
Leitblechbaffle

Claims (16)

  1. Process for the heat treatment of a running web by blowing with vapour in an apparatus having a vapour-tight housing,
       wherein the web is conveyed by means of a conveying apparatus through an inlet slot into the housing, through the housing and through an outlet slot,
       wherein in at least one vapour section of the apparatus vapour is conducted in the air circulation process and
       is blown through nozzle orifices of nozzle chests onto the web, with a positive pressure being maintained in the housing and in which gas is sucked off at least at the inlet slot,
       characterised in that in a sluice in front of the inlet slot (2) of the housing (1) vapour is first blown onto the web (4) and gas is then sucked off behind the blowing of vapour.
  2. Process for the heat treatment of a running web by blowing with vapour as claimed in Claim 1, characterised in that the vapour in the sluice is blown onto the web (4) at a vapour speed of 20 to 40 m/s.
  3. Process for the heat treatment of a running web by blowing with vapour as claimed in Claim 1 or 2, characterised in that the web is conveyed in a substantially horizontal plane through the inlet slot (2), the housing (1) and the outlet slot.
  4. Process for the heat treatment of a running web by blowing with vapour as claimed in any one of Claims 1 to 3, wherein part of the vapour is extracted as exhaust vapour from the vapour sections following contact with the web (4), characterised in that the vapour supplied in the sluice is a partial flow of the exhaust vapour.
  5. Process for the heat treatment of a running web by blowing with vapour as claimed in Claim 4, characterised in that the exhaust vapour supplied in the sluice is extracted from the front area of the apparatus.
  6. Process for the heat treatment of a running web by blowing with vapour as claimed in any one of Claims 1 to 5, characterised in that in the sluice in front of the inlet slot (2) of the housing (1) before the blowing with vapour heated air is blown onto the web (4).
  7. Process for the heat treatment of a running web by blowing with vapour as claimed in any one of Claims 1 to 6, characterised in that in the sluice in front of the inlet slot (2) of the housing (1) before the blowing with vapour and behind the blowing with vapour gas is sucked off.
  8. Process for the heat treatment of a running web by blowing with vapour as claimed in any one of Claims 1 to 7, characterised in that in the sluice first heated air, then vapour is supplied and, finally, vapour and, possibly, air is sucked off.
  9. Apparatus for the heat treatment of a running web by blowing with vapour, having a vapour-tight housing with an inlet and an outlet slot, with at least one suction apparatus at the inlet slot, with a conveying apparatus for the web, with at least one vapour section, with a device for conducting vapour in the air circulation process and with nozzle chests with nozzle openings directed at the web, characterised in that in front of the inlet slot (2) a sluice is arranged having at least one vapour compartment (12) with nozzle chests (13), to which a vapour inlet pipe (17) is connected, and having at least one suction compartment (16) behind the vapour compartment (12).
  10. Apparatus for the heat treatment of a running web by blowing with vapour as claimed in Claim 9, characterised in that the conveying apparatus inside the housing (1) in the area of the inlet slot (2) and in the area of the outlet slot forms a substantially horizontal conveying plane for the web (4).
  11. Apparatus for the heat treatment of a running web by blowing with vapour as claimed in Claim 9 or 10, with the vapour sections being provided with vapour discharge pipes, characterised in that the vapour inlet pipe (17) to the sluice is connected to one of the vapour discharge pipes (8).
  12. Apparatus for the heat treatment of a running web by blowing with vapour as claimed in Claim 11, characterised in that the vapour inlet pipe (17) to the sluice is connected to a vapour discharge pipe (8) connected to the front area of the apparatus.
  13. Apparatus for the heat treatment of a running web by blowing with vapour as claimed in any one of Claims 9 to 12, characterised in that the sluice has an air compartment (15) with nozzle chests (23), which is located upstream from the vapour compartment (12) and to which an air inlet pipe (21) is connected.
  14. Apparatus for the heat treatment of a running web by blowing with vapour as claimed in any one of Claims 10 to 13, characterised in that the sluice has suction compartments (16) which are arranged in front of the vapour compartment (12) and behind the vapour compartment (12).
  15. Apparatus for the heat treatment of a running web by blowing with vapour as claimed in any one of Claims 10 to 14, characterised in that the sluice has an air compartment (15), a vapour compartment (13) and a suction compartment (16) arranged behind one another in the conveying direction.
  16. Apparatus for the heat treatment of a running web by blowing with vapour as claimed in any one of Claims 10 to 15, characterised in that the nozzle chests (23, 13) of one or more of the chambers of the sluice have slot nozzles (33, 34).
EP99122120A 1998-12-19 1999-11-05 Process and apparatus for the heat treatment of a running web by blowing with vapour Expired - Lifetime EP1010959B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DK99122120T DK1010959T3 (en) 1998-12-19 1999-11-05 Method and apparatus for heat treating a running goods web by blowing steam

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19858839A DE19858839B4 (en) 1998-12-19 1998-12-19 Method and apparatus for heat treating a continuous web by blowing steam
DE19858839 1998-12-19

Publications (3)

Publication Number Publication Date
EP1010959A2 EP1010959A2 (en) 2000-06-21
EP1010959A3 EP1010959A3 (en) 2001-09-12
EP1010959B1 true EP1010959B1 (en) 2005-03-16

Family

ID=7891820

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99122120A Expired - Lifetime EP1010959B1 (en) 1998-12-19 1999-11-05 Process and apparatus for the heat treatment of a running web by blowing with vapour

Country Status (5)

Country Link
US (1) US6282811B1 (en)
EP (1) EP1010959B1 (en)
AT (1) ATE291211T1 (en)
DE (2) DE19858839B4 (en)
DK (1) DK1010959T3 (en)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10023721A1 (en) * 1999-05-28 2001-02-08 Babcock Textilmasch Steaming of continuous textile fabrics to fix reactive dyes includes blowing superheated steam on both sides of fabric in a horizontal path
DE29909402U1 (en) 1999-05-31 1999-08-12 Babcock Textilmaschinen GmbH, 21220 Seevetal Superheated steam dryer
US6631566B2 (en) * 2000-09-18 2003-10-14 Kimberly-Clark Worldwide, Inc. Method of drying a web
DE10333483B4 (en) * 2003-07-22 2008-11-27 Moenus Textilmaschinen Gmbh Process for heat treatment of a web and treatment device
DE10337644B3 (en) * 2003-08-16 2005-05-25 Elpo Gmbh Luft- Und Trocknungstechnik Heat treatment device for strip material has furnace with positive and negative pressure chambers on opposite sides of strip material
SE536108C2 (en) * 2010-11-16 2013-05-07 Andritz Tech & Asset Man Gmbh Drying box comprising at least two zones for drying a cellulose pulp web
US9217212B2 (en) * 2011-01-21 2015-12-22 Despatch Industries Limited Partnership Oven with gas circulation system and method
CN104088110B (en) * 2014-07-18 2016-04-27 苏州市宏达集团有限公司 A kind of steam forming machine
CN105318687B (en) * 2015-10-12 2017-12-15 江苏广盛源科技发展有限公司 A kind of equipment and furnace drying method for textile drying
CN105318690B (en) * 2015-10-12 2017-12-15 盐城帝佳妮服饰有限公司 A kind of equipment and furnace drying method for textile drying
CN105318689B (en) * 2015-10-12 2017-12-19 江苏广盛源科技发展有限公司 A kind of equipment and furnace drying method for textile drying
CN108589130A (en) * 2018-05-16 2018-09-28 湖州织里创塑塑料科技有限公司 A kind of steaming cloth machine

Family Cites Families (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1460574A1 (en) * 1964-03-18 1969-09-04 Fleissner Gmbh Sealing at the inlet and outlet of pressure chambers in textile treatment plants
US3577653A (en) * 1970-01-20 1971-05-04 Beloit Corp Web drying tunnel
DE2310195C2 (en) * 1973-02-02 1983-01-20 Vepa AG, 4125 Riehen, Basel Damper with at least partially horizontal goods guidance
DE2727971C2 (en) 1977-06-22 1983-07-14 Brückner-Apparatebau GmbH, 6120 Erbach Process for the thermal treatment of a web of material
DE2951299A1 (en) 1979-12-20 1981-07-09 Babcock Textilmaschinen Kg (Gmbh & Co), 2105 Seevetal HEAT TREATMENT DEVICE, IN PARTICULAR HINGED LOOP DAMPER
GB2079913A (en) * 1980-05-09 1982-01-27 Crosfield Electronics Ltd Web drying apparatus
DE3038791C2 (en) * 1980-10-14 1985-08-01 Lohmann Gmbh & Co Kg, 5450 Neuwied Device for drying solvent-based material
DE3315755A1 (en) * 1983-04-30 1984-10-31 Babcock Textilmaschinen GmbH, 2105 Seevetal FIBER CATALOG INBES. FOR TEXTILE DRYERS AND THE LIKE
GB8405716D0 (en) * 1984-03-05 1984-04-11 Reed C M Heat treatment apparatus
DE3743598A1 (en) * 1987-12-22 1989-07-13 Kramer Carl DEVICE FOR CONTACT-FREE SEALING AN OPENING AGAINST LEAKING OR INLETING GAS
FI78756C (en) * 1988-04-25 1989-09-11 Valmet Paper Machinery Inc Method and apparatus for drying a moving web
JP2552929B2 (en) * 1990-02-20 1996-11-13 富士写真フイルム株式会社 Gas seal device for the web penetration part of the processing chamber wall
DE4033637A1 (en) * 1990-10-23 1992-04-30 Babcock Textilmasch Device for circulating control air in heat treatment plant - involves nozzle bodies above and below material track, working from common blower
US5105558A (en) * 1991-03-28 1992-04-21 Curry Donald P Apparatus and process for drying cellulosic and textile substances with superheated steam
DE4226107A1 (en) 1992-08-07 1994-02-10 Vits Maschinenbau Gmbh Drying plant
US5429303A (en) * 1993-03-20 1995-07-04 V.I.B. Apparatebau Gmbh Steam spray tube with linear acceleration channel
DE19525545C1 (en) * 1995-07-13 1996-09-26 Babcock Textilmasch Compact drier for high throughput for textile web with heavy borders
DE19546344A1 (en) * 1995-12-12 1997-06-19 Babcock Textilmasch Device for the heat treatment of continuous material webs

Also Published As

Publication number Publication date
EP1010959A3 (en) 2001-09-12
ATE291211T1 (en) 2005-04-15
DK1010959T3 (en) 2005-07-04
DE59911760D1 (en) 2005-04-21
EP1010959A2 (en) 2000-06-21
DE19858839A1 (en) 2000-06-21
US6282811B1 (en) 2001-09-04
DE19858839B4 (en) 2005-02-10

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