EP4036505A2 - Chambre de préchauffage permettant de préchauffer une bande de matière textile au moyen de l'air, dispositif de séchage, ainsi qu'utilisation d'une telle chambre dans une machine pour la fabrication ou le traitement d'une bande de matière textile - Google Patents

Chambre de préchauffage permettant de préchauffer une bande de matière textile au moyen de l'air, dispositif de séchage, ainsi qu'utilisation d'une telle chambre dans une machine pour la fabrication ou le traitement d'une bande de matière textile Download PDF

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Publication number
EP4036505A2
EP4036505A2 EP21201487.2A EP21201487A EP4036505A2 EP 4036505 A2 EP4036505 A2 EP 4036505A2 EP 21201487 A EP21201487 A EP 21201487A EP 4036505 A2 EP4036505 A2 EP 4036505A2
Authority
EP
European Patent Office
Prior art keywords
preheating chamber
dryer
air
web
textile
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.)
Withdrawn
Application number
EP21201487.2A
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German (de)
English (en)
Other versions
EP4036505A3 (fr
Inventor
Andreas Kroll
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Truetzschler Group SE
Original Assignee
Truetzschler GmbH and Co KG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Truetzschler GmbH and Co KG filed Critical Truetzschler GmbH and Co KG
Publication of EP4036505A2 publication Critical patent/EP4036505A2/fr
Publication of EP4036505A3 publication Critical patent/EP4036505A3/fr
Withdrawn legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • 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
    • F26B13/14—Rollers, drums, cylinders; Arrangement of drives, supports, bearings, cleaning
    • F26B13/16—Rollers, drums, cylinders; Arrangement of drives, supports, bearings, cleaning perforated in combination with hot air blowing or suction devices, e.g. sieve drum dryers
    • 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
    • F26B21/004—Nozzle assemblies; Air knives; Air distributors; Blow boxes

Definitions

  • the invention relates to a preheating chamber for preheating a textile web by means of air, a drying arrangement comprising such a preheating chamber and the use of such a preheating chamber in a machine for producing or processing a textile web.
  • a material web formed from fibers is consolidated, structured and/or perforated by means of water jets, or impregnated in an immersion bath, it is then wet and usually has to be thermally dried.
  • This is usually done by means of dryers arranged behind the hydroentanglement, seen in the running direction of the web, which can be designed as in-line dryers, belt dryers or plate dryers.
  • the dryers can be designed as through-flow or convection dryers and include, for example, one or more drums around which the textile web is at least partially wrapped and through which hot air flows.
  • EP 2909550 B1 discloses a dryer for textile webs in which a plurality of such drums are provided in a dryer room.
  • exhaust air is extracted from an additional chamber, which is connected to the dryer room, and fed to a heat exchanger in order to heat the air supply to the dryer.
  • EP 0269163 A2 shows a dryer for a web of textile material, in which air is sucked out of the radial interior of a drum via fans and passed on to nozzles that are upstream of the drum in the running direction of the web of material.
  • the material web is to be preheated within the dryer itself by means of these nozzles, even before it reaches the drum.
  • the object on which the invention is based is achieved by a preheating chamber for preheating a textile web using air, a drying arrangement comprising such a preheating chamber and the use of such a preheating chamber in a machine for producing or processing a textile web.
  • a preheating chamber for preheating a textile web using air a drying arrangement comprising such a preheating chamber and the use of such a preheating chamber in a machine for producing or processing a textile web.
  • Preferred embodiments of the invention are specified in the dependent claims, which can optionally be combined with one another.
  • a preheating chamber for preheating a web of textile material by means of air
  • the web of textile material can be guided through the preheating chamber, more precisely, through the interior of the housing of the preheating chamber.
  • the preheating chamber includes a supply air duct for air, wherein the supply air duct can be connected to an exhaust air duct of a dryer for the textile web, so that the exhaust air from the dryer can be fed to the preheating chamber in order to preheat the textile web with it.
  • warm, moisture-laden air exhaust air
  • the preheating chamber is not a dryer in itself, since its primary aim is not to reduce the moisture content of the textile web, but merely to slightly increase its temperature.
  • the preheating chamber is therefore not operated at an air temperature of around 105°C to 180°C like the dryer itself.
  • a textile material web is mentioned, then what is meant is a fibrous material web made of fibers.
  • a fibrous material web made of fibers. This can be in the form of tissues, Knitted fabric webs or nonwovens are present and preferably comprise the fibers mentioned at the outset.
  • the term separate means that the relevant components are designed separately from one another and do not share a common housing. Separately also means that the components can be arranged at a distance from one another.
  • the speech is at least indirectly, then this means directly or indirectly. For example, if air is supplied indirectly to a room, then this is done indirectly via another room. If, on the other hand, air is supplied to a room directly, i.e. directly, then such an intermediate connection is dispensed with.
  • the preheating chamber preferably comprises ducts for discharging the exhaust air from the dryer onto the web of material, the ducts being connected to the inlet air duct of the preheating chamber in an air-conducting manner.
  • the air i.e. the exhaust air from the dryer, can get directly into the interior of the preheating chamber in order to preheat the textile material web.
  • the preheating chamber can comprise one or more perforated metal rollers, around which the textile material web is partially looped as it passes through the preheating chamber, with the channels for discharging the exhaust air from the dryer opening onto the material web in the preheating chamber in the area of the perforated metal rollers or being formed by them.
  • the preheating chamber can be assigned an additional heat source for heating the textile web, the exhaust air from the dryer or the air in the preheating chamber.
  • the heat source can be powered by electricity or gas. If, for example, the temperature of the exhaust air is not quite sufficient, the preheating chamber can supply additional thermal energy.
  • the heat source can be located within the preheating chamber.
  • the means can be designed in the form of blowers or throttle flaps and can be connected to the inlet air duct of the preheating chamber in an air-conducting manner or can be arranged in the preheating chamber or its inlet air duct.
  • a drying arrangement according to the invention for a textile web comprises a preheating chamber according to the invention and a dryer through which the textile web can be successively passed, the preheating chamber being upstream of the dryer as seen in the running direction of the textile web.
  • the preheating chamber is preferably designed separately from the dryer.
  • the machine for producing or processing a textile web can have a modular structure: the dryer and preheating chamber are then individual modules of the machine. If a preheating chamber is required, then this is installed upstream of the dryer, seen in the running direction of the textile web. Otherwise, the dryer can do without one. This reduces the number of components to be kept available without having to keep e.g. dryers with built-in preheating chambers.
  • the dryer of the drying arrangement can have a dryer room and at least one drum which is arranged in the dryer room and around which the textile material web is at least partially wrapped.
  • Such dryers are also called in-line dryers, since the axes of rotation of the drums are spaced apart from one another and are arranged parallel in a row.
  • Air can then be applied to the dryer via an air supply duct in order to dry the web of textile material, and it can be connected to an exhaust air duct in order to discharge air laden with moisture out of the dryer.
  • the exhaust air duct of the dryer can be connected or connectable to the air intake duct of the preheating chamber in order to remove at least part of the moisture-laden air from the dryer and feed it to the preheating chamber for preheating the textile material web.
  • the hot and moisture-laden exhaust air from the dryer is used to preheat the textile web in the preheating chamber.
  • the exhaust air duct of the dryer can be connected directly to the dryer room or indirectly to the dryer room with the interposition of a separately formed additional chamber, with the additional chamber and dryer room being connected to one another in an air-conducting manner.
  • the preheating chamber can be designed separately from the dryer, as has already been described at the outset.
  • the invention also relates to the use of a preheating chamber according to the invention in a machine for producing or processing a textile web at a point between a hydroentanglement system for the textile web and a dryer for drying it, with the preheating chamber preferably moving through the machine in the running direction of the textile web seen, on the one hand directly connected to the hydroentanglement system and on the other hand is directly upstream of the dryer.
  • This special arrangement enables the advantages according to the invention to be implemented particularly well.
  • the invention also relates to a machine for producing or processing a textile web, comprising at least the following components, which are arranged directly one behind the other in the running direction of the textile web and are preferably designed separately from one another: a water jet bonding system for the textile web, a preheating chamber according to the invention and a dryer for drying it, the last two components can correspond to the drying arrangement according to the invention.
  • Figures 1 to 3 each show a highly schematic and therefore not to scale side view of part of a machine for producing or processing a textile web 5.
  • the machine comprises a hydroentanglement system 16 and a dryer arrangement comprising a preheating chamber 10 and a dryer 1.
  • a dryer arrangement comprising a preheating chamber 10 and a dryer 1.
  • the first is shown in FIGS 2 and 3 not shown, although in the same place as in 1 shown, is provided.
  • the hydroentanglement system 16 is used to solidify the textile web 5. It includes a water beam 17.
  • the textile web 5 is transported on a circulating belt 18 and is solidified by means of fluid jets 19.
  • the water bar 17 has a single row of nozzle openings 20 . It can too several rows of nozzle openings 20 may be provided.
  • the water bar 17 is fluidly connected to a reservoir of fluid, such as water, for example with the interposition of pumps, not shown.
  • the pressurized fluid thus reaches the water beam 17. From there it emerges from the plurality of nozzle openings 20 arranged in the water beam 17. At the exit of the nozzle openings 20 from the water beam 17, the fluid forms a multiplicity of fluid jets 19. These act on the textile material web 5 passing underneath to solidify it hydrodynamically.
  • a suction device 21 for removing the fluid penetrating the textile web 5 is arranged below the belt 18 .
  • the drying arrangement includes a dryer 1, which is shown here in the form of a series dryer.
  • a dryer 1 which is shown here in the form of a series dryer.
  • two drums 3a, 3b are arranged one behind the other and with their axes of rotation 4a, 4b spaced parallel to one another in a row.
  • the web of material 5 is guided into the drying room 2 via an inlet 6 .
  • the material web 5 is first guided above the first drum 3a, then below the second drum 3b on the respective lateral surface of the corresponding drum.
  • the web of material 5 then exits the drying room 2 through an outlet 9 .
  • the web 5 is flowed through with heated air.
  • the dryer 1 has an air supply duct 7 which is at least indirectly, that is to say directly or indirectly, connected to the dryer chamber 2 in an air-conducting manner.
  • the heated air supplied in this way to the drying room 2 absorbs the moisture from the material web 5 and is sucked off via the interior of the drums 3a and 3b.
  • the air is then discharged from the dryer room 2 via an exhaust air duct 8 which is at least indirectly connected to it.
  • the drying arrangement also includes a preheating chamber 10 according to the invention.
  • the textile material web 5 is preheated after it comes out of the hydroentanglement system 16 and before it enters the dryer 1 for its preferably complete drying.
  • the preheating chamber 10 includes a supply air duct 11 for supplying warm air.
  • the inlet air duct 11 of the preheating chamber 10 is connected or can be connected to the exhaust air duct 8 of the dryer 1 .
  • Warm and moisture-laden air escapes from the dryer 1 and is used to preheat the textile material web 5 .
  • the used air (which has given off most of its heat energy) then exits the preheating chamber 10 via an exhaust air duct 12 .
  • ducts 13 for discharging the exhaust air from the dryer 1 onto the web 5 in the preheating chamber 10.
  • the ducts 13 are connected to the inlet air duct 11 in an air-conducting manner for this purpose.
  • the preheating chamber 10 comprises a plurality of perforated metal rollers 22 around which the textile web 5 is partially wrapped as it is passed through the preheating chamber 10 .
  • the channels 13 for discharging the exhaust air from the dryer 1 onto the web 5 open into the preheating chamber 10 in the area of the perforated metal rollers 22.
  • the latter are arranged parallel to one another with regard to their axes of rotation, here offset in a zigzag or meandering manner.
  • the preheating chamber 10 can have an additional heat source 14 (see 3 ) for heating the textile web 5 or the air in the preheating chamber 10, wherein the heat source can be designed as an external heat source that can be powered by electricity or gas.
  • a heat exchanger can be used as a thermal oil or steam or liquid heat exchanger, or other means for supplying heat.
  • the preheating chamber means 15 for adjusting the quantity, temperature, entry speed, humidity and the saturation quantity of water vapor of the exhaust air of the dryer 1 to be fed into the preheating chamber 10, the means comprising blowers or throttle valves and being connected to the supply air duct 11 of the preheating chamber 10 in an air-conducting manner or being arranged therein be able.
  • the means 15 as well as the heat source 14 can occur in all embodiments of the invention.
  • the material web 5 therefore runs through the following components, which are arranged separately from one another here: first the hydroentanglement system 16, then immediately thereafter the preheating chamber and directly after that the dryer 1.
  • the dryer 1 has an additional third drum 3c, which can be rotated about its axis of rotation 4c.
  • a further additional chamber 23 adjoins the drying room 2 .
  • the supply air duct 7 and the exhaust air duct 8 can now open into this additional chamber 23 and not directly into the dryer room 2.
  • the exhaust air duct 8 of the dryer 1 could open out in the area of the last drum 3c, viewed in the running direction of the material web 5, radially outside of this last drum 3c in the dryer space 2.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Treatment Of Fiber Materials (AREA)
EP21201487.2A 2021-02-01 2021-10-07 Chambre de préchauffage permettant de préchauffer une bande de matière textile au moyen de l'air, dispositif de séchage, ainsi qu'utilisation d'une telle chambre dans une machine pour la fabrication ou le traitement d'une bande de matière textile Withdrawn EP4036505A3 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102021102262.2A DE102021102262A1 (de) 2021-02-01 2021-02-01 Vorwärmkammer zum Vorwärmen einer textilen Warenbahn mittels Luft, Trockenanordnung sowie Verwendung einer solchen in einer Maschine zur Herstellung oder Bearbeitung einer textilen Warenbahn

Publications (2)

Publication Number Publication Date
EP4036505A2 true EP4036505A2 (fr) 2022-08-03
EP4036505A3 EP4036505A3 (fr) 2022-08-24

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP21201487.2A Withdrawn EP4036505A3 (fr) 2021-02-01 2021-10-07 Chambre de préchauffage permettant de préchauffer une bande de matière textile au moyen de l'air, dispositif de séchage, ainsi qu'utilisation d'une telle chambre dans une machine pour la fabrication ou le traitement d'une bande de matière textile

Country Status (2)

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EP (1) EP4036505A3 (fr)
DE (1) DE102021102262A1 (fr)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0269163A2 (fr) 1986-11-28 1988-06-01 SPEROTTO RIMAR S.p.A. Sécheur à percussion et aspiration d'air pour un dispositif de traitement en continu de textile
EP2909550B1 (fr) 2012-10-17 2019-10-30 Trützschler GmbH & Co. KG Séchoir pour une bande de matière textile

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE901284C (de) 1951-03-13 1954-01-11 Fleissner & Sohn Maschinenfabr Vorrichtung zum Trocknen von Textilgut, insbesondere von Kardenbaendern, Kammzug, losem Fasermaterial, Geweben, Trikotwaren od. dgl.
DE2452207C3 (de) * 1974-11-04 1986-07-10 Industria Textila Lugoj, Lugoj Vorrichtung zum Trocknen von Textilbahnen
DE2615261A1 (de) * 1976-04-08 1977-10-20 Boewe Boehler & Weber Kg Masch Vorrichtung zum behandeln von bahnfoermigem material
US4133636A (en) * 1977-06-30 1979-01-09 Blu-Surf, Inc. Tentor
AU562693B2 (en) 1985-05-15 1987-06-18 Ykk Corporation Heater for textiles
DE102009016019A1 (de) * 2009-04-02 2010-10-07 Fleissner Gmbh Trockner für textile Warenbahnen
DE102011113837A1 (de) * 2011-09-21 2013-03-21 Trützschler Nonwovens Gmbh Heizsystem zum Erwärmen eines gasförmigen Behandlungsmediums für einen Trockner
DE102016108863A1 (de) * 2016-05-13 2017-11-16 TRüTZSCHLER GMBH & CO. KG Trockner für eine textile Warenbahn mit einer Einrichtung zum energieminimalen Betrieb und Verfahren hierzu
DE202019100745U1 (de) 2019-02-08 2020-05-11 Autefa Solutions Germany Gmbh Trocknungseinrichtung
CN111928617A (zh) 2019-05-13 2020-11-13 吴江新生喷织有限责任公司 一种用于氨纶纱线的传导烘干装置
CN212158020U (zh) 2020-05-29 2020-12-15 太仓营昆机械设备有限公司 一种具备高效烘干的工业烘干炉

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0269163A2 (fr) 1986-11-28 1988-06-01 SPEROTTO RIMAR S.p.A. Sécheur à percussion et aspiration d'air pour un dispositif de traitement en continu de textile
EP2909550B1 (fr) 2012-10-17 2019-10-30 Trützschler GmbH & Co. KG Séchoir pour une bande de matière textile

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DE102021102262A1 (de) 2022-08-04
EP4036505A3 (fr) 2022-08-24

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