EP2633251B1 - Dispositif de traitement de matériau en forme de bande par passage au travers du matériau - Google Patents

Dispositif de traitement de matériau en forme de bande par passage au travers du matériau Download PDF

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Publication number
EP2633251B1
EP2633251B1 EP11779120.2A EP11779120A EP2633251B1 EP 2633251 B1 EP2633251 B1 EP 2633251B1 EP 11779120 A EP11779120 A EP 11779120A EP 2633251 B1 EP2633251 B1 EP 2633251B1
Authority
EP
European Patent Office
Prior art keywords
screen
web
screen cover
screen drum
drum
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.)
Not-in-force
Application number
EP11779120.2A
Other languages
German (de)
English (en)
Other versions
EP2633251A1 (fr
Inventor
Stephan Hajdu
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 Nonwovens and Man Made Fibers GmbH
Original Assignee
Truetzschler Nonwovens and Man Made Fibers GmbH
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 Nonwovens and Man Made Fibers GmbH filed Critical Truetzschler Nonwovens and Man Made Fibers GmbH
Publication of EP2633251A1 publication Critical patent/EP2633251A1/fr
Application granted granted Critical
Publication of EP2633251B1 publication Critical patent/EP2633251B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • F26B21/06—Controlling, e.g. regulating, parameters of gas supply
    • F26B21/12—Velocity of flow; Quantity of flow, e.g. by varying fan speed, by modifying cross flow area

Definitions

  • the invention relates to a device for through-flow treatment, in particular for drying sheet-like material according to the preamble of claim 1.
  • a screen drum apparatus for passing through heat-treating gas-permeable material webs.
  • a material carrying the web in its outer periphery permeable designed sieve drum is rotatably mounted.
  • the sieve drum is placed under induced draft via a fan assigned to the front side as a suction air generator.
  • the extracted air is heated in a part of the housing formed as an air treatment (ventilator space) and directed into the treatment space surrounding the sieve drum. Due to the negative pressure within the sieve drum, the heated air flows through the textile material web carried by the sieve drum.
  • this screen drum In order to produce a homogenization of the flow in the region of the screen drum looped around by the material web and a pressure difference required for the throughflow, this screen drum is associated with a screen cover covering the screen drum in the area of the loop.
  • This jam or screen blanket is designed shell-shaped, so surrounds the sieve drum so centric or the stowage ceiling consists of straight sheet metal sections. Regardless of the type of arrangement of the screen cover this is designed as a perforated plate.
  • the degree of transmittance of the screen cover is smaller than that of the screen drum carrying the material web. This results in a pressure difference between the treatment chamber and the sieve drum.
  • a screen drum device in which the screen cover surrounds the drum shell-shaped and the air flow determining holes in the screen cover in arrangement and / or hole density are adapted to the changing in the circumferential direction of the drum flow.
  • the DE 40 22 336 A1 and the EP 0 465 769 A1 each show a device for the flow-through treatment of web-like Good, in which a jam and a screen blanket, each having a perforation, are displaceable relative to each other and so the air flow over the drum width is adjustable.
  • the device is used to adjust the flow to different widths of material webs. Accordingly, different perforations are provided for congestion and screen ceiling.
  • a dryer is known in which the web carrying the material web is associated with a screen cover composed of straight sheets.
  • the invention is thus based on a device for the through-flow treatment of web-like, gas-permeable material, in particular for drying woven or nonwoven fabrics, with the features of the preamble of claim 1.
  • Object of the present invention is to improve a device of the generic type, especially in the direction of increasing performance at low air speeds.
  • the air permeability of the screen cover can be changed at least in a circumferential section, that is to say a transport section of the material web, a very differentiated adaptation to the present treatment situation can be undertaken. It is according to the invention, as will be explained below, provided that the permeability of the screen cover sections over the entire transport path of the web can be changed.
  • the permeability of a web to be dried which increases from the front to the rear, can be taken into account with an adapted through-sieve permeability, which decreases from the front to the rear.
  • the invention is applicable to dryers in which the material web to be dried flows through hot air and thus expels the moisture in the material. Also, the invention is applicable to the heat setting serving facilities in which, for example, a nonwoven consisting of fusible fibers is treated with hot air flowing through and solidified. Especially with voluminous, loose nonwovens a low flow rate is desired, since so the structure of the material is not adversely affected.
  • the sieve cover has a fixed hole pattern with openings of the diameter provided.
  • the slide plate has windows adapted to the perforated grid, which each release or close the second row of holes. This allows the air outlet in the section from the full opening to be reduced by 50%.
  • FIG. 1 shows a screen drum S with an air-permeable outer peripheral surface.
  • the screen drum S is rotatably mounted in a housing G and connected in a manner not shown with a vacuum generator.
  • the direction of rotation of the sieve drum S is indicated by the arrow.
  • the interior of the housing G forms a treatment space BH for a material web M to be dried.
  • a material web M for example a nonwoven web is guided.
  • the material web M via a roller W1 in the housing G purely and the outer circumference of the screen drum S added and removed via a second roller W2 from the outer periphery and led out of the housing G.
  • the direction of movement of the material web M is indicated by the arrows.
  • Inside the sieve drum S is not wrapped in the material web Area arranged an aperture B fixed to the frame, through which a suction in this area is prevented.
  • a perforated screen cover SD is arranged above the region of the screen drum S which is looped around by the material web M.
  • the screen cover SD is mounted fixed to the frame, that is firmly connected to the housing G and consists of individual flat sections, which are each designed as a perforated plate.
  • the screen drum S is connected to a front side with a suction fan and is thus subjected to negative pressure.
  • the fan is housed in a fan room adjacent to the treatment room. In this room also heating and / or heat exchange devices are housed, through which the air sucked out of the sieve drum S heated and returned to the interior BH. This is then sucked through the negative pressure within the screen drum S through the web.
  • the screen cover SD above the screen drum S generated by their permeability, the necessary pressure difference to the flowing through the material web M.
  • the screen cover SD surrounding the screen drum S consists of individual perforated sheet elements LE with holes L (FIG. FIG. 2, 3 ).
  • Each perforated plate element LE is assigned a relative to this movable slide SB, which has adapted to the hole structure of the perforated plate element LE window F.
  • the windows F of the slide SB have such a geometry and width, so that when the slide SB is moved, a complete row of holes in the perforated sheet element is closed (FIG. FIG. 2 ) or this row of holes can be released ( FIG. 3 ).
  • the necessary for closing and opening the holes L in the perforated plate element LE movements are indicated by the arrows in FIG. 2 and 3 indicated.
  • the displacement of the slider SB about a row of holes causes the increase in the air flow rate by 100%, ie, the air flow rate, starting from FIG. 2 doubled ( FIG. 3 ).
  • the Siebbetweenabitesen SD guide elements are assigned, in which the provided slide SB can be used.
  • the slides SB can be sheets with different window geometries or completely closed sheets. It can be provided that the slides SB are slidably received parallel to the axial direction of the screen drum S. Preferably, a remote adjustment is then provided by which individual slide SB but also all slides SB can be adjusted in total.
  • the permeability of the Siebsupportabête SD on the transport path of the material web M is individually adjustable.

Claims (7)

  1. Dispositif servant à traiter par un fluide traversant un matériau en forme de bande, perméable aux gaz, en particulier servant à faire sécher des tissus tissés et non-tissés, présentant les caractéristiques suivantes :
    - un tambour perforé (S) monté de manière à pouvoir tourner et relié à un générateur de vide, présentant un pourtour extérieur configuré de manière perméable, sachant que la bande de matériau (M) à traiter court autour d'une partie du pourtour extérieur du tambour perforé (S),
    - une chambre de traitement (BH) abritant le tambour perforé (S), laquelle est soumise à l'action du gaz à traiter, de préférence à de l'air chauffé,
    - à l'intérieur de la chambre de traitement (BH), une partie de recouvrement perforée (SD) entourant le tambour perforé (S) dans la zone autour de laquelle s'enroule la bande de matériau (M),
    - un moyen servant à modifier au moins dans un tronçon du pourtour du tambour perforé (S) la perméabilité à l'air de la partie de recouvrement perforée (SD),
    sachant que la perméabilité de la partie de recouvrement perforée (SD) peut être modifiée par endroits sur le trajet global de transport de la bande (M), caractérisé en ce que la perméabilité de la partie de recouvrement perforée diminue en direction du trajet de transport.
  2. Dispositif selon la revendication 1,
    caractérisé en ce
    que la partie de recouvrement perforée (SD) est fabriquée par endroits à partir d'éléments en tôle trouée (LE).
  3. Dispositif selon la revendication 2,
    caractérisé en ce
    qu'au moins un élément en tôle trouée (LE) peut être remplacé.
  4. Dispositif selon la revendication 2 ou 3,
    caractérisé en ce
    qu'un coulisseau (SB) muni de fenêtres (F) servant à régler la perméabilité est associé à au moins un élément en tôle trouée (LE).
  5. Dispositif selon la revendication 4,
    caractérisé en ce
    que le coulisseau (SB) est monté, par rapport à l'élément en tôle trouée (LE), de manière à pouvoir être déplacé par coulissement de manière parallèle par rapport au sens axial du tambour perforé (S).
  6. Dispositif selon la revendication 4,
    caractérisé en ce
    qu'un système d'ajustement à distance est associé au coulisseau (SB).
  7. Dispositif selon la revendication 4,
    caractérisé en ce
    que, pour de nombreux coulisseaux (SB), ces derniers peuvent être actionnés par un système d'ajustement global.
EP11779120.2A 2010-10-29 2011-10-19 Dispositif de traitement de matériau en forme de bande par passage au travers du matériau Not-in-force EP2633251B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102010050044A DE102010050044A1 (de) 2010-10-29 2010-10-29 Vorrichtung zum durchströmenden Behandeln von bahnförmigem Material
PCT/EP2011/068245 WO2012055732A1 (fr) 2010-10-29 2011-10-19 Dispositif de traitement de matériau en forme de bande par passage au travers du matériau

Publications (2)

Publication Number Publication Date
EP2633251A1 EP2633251A1 (fr) 2013-09-04
EP2633251B1 true EP2633251B1 (fr) 2016-03-02

Family

ID=44907826

Family Applications (1)

Application Number Title Priority Date Filing Date
EP11779120.2A Not-in-force EP2633251B1 (fr) 2010-10-29 2011-10-19 Dispositif de traitement de matériau en forme de bande par passage au travers du matériau

Country Status (3)

Country Link
EP (1) EP2633251B1 (fr)
DE (1) DE102010050044A1 (fr)
WO (1) WO2012055732A1 (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102010018357A1 (de) * 2010-04-15 2011-10-20 Fleissner Gmbh Vorrichtung zum durchströmenden Behandeln von bahnförmigem Material
DE102013114075A1 (de) 2013-12-16 2015-06-18 TRüTZSCHLER GMBH & CO. KG Vorrichtung und Verfahren zum thermischen Verfestigen einer textilen Warenbahn
DE102014102119A1 (de) * 2014-02-19 2015-08-20 TRüTZSCHLER GMBH & CO. KG Vorrichtung zum Trocknen einer textilen Warenbahn
DE102014105060A1 (de) * 2014-04-09 2015-10-15 Trützschler GmbH + Co KG Textilmaschinenfabrik Trockner für eine textile Warenbahn
DE102015118596A1 (de) * 2015-10-30 2017-05-04 TRüTZSCHLER GMBH & CO. KG Vorrichtung und Verfahren zum thermischen Behandeln einer textilen Warenbahn
DE102016110117A1 (de) 2016-06-01 2017-12-07 TRüTZSCHLER GMBH & CO. KG Vorrichtung zur Wärmebehandlung einer textilen Warenbahn, insbesondere ein Trockner oder Thermobonder

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1635332A1 (de) * 1966-07-06 1971-04-01 Vepa Ag Vorrichtung zum Heissluftbehandeln oder Daempfen von Textilmaterialien
DE1729494B2 (de) * 1967-07-05 1975-11-13 Vepa Ag, Riehen Bei Basel (Schweiz) Verwendung einer unter Saugzug eines Gases stehenden Siebtrommel zum Wärmebehandeln von luftdurchlässigem Gut im Hochfrequenzfeld
DE1900496C3 (de) * 1969-01-07 1978-11-09 Vepa Ag, Riehen B. Basel (Schweiz) Vorrichtung zum Behandeln von durchlässigen Gütern
DE3006758A1 (de) 1980-02-22 1981-09-03 Vepa AG, 4125 Riehen, Basel Vorrichtung zum trocknen von bahnfoermigen textilgut mit zwei uebereinander angeordneten siebtrommeln
DE3905001A1 (de) 1989-02-18 1990-08-23 Fleissner Maschf Ag Siebtrommelvorrichtung mit siebdecke
DE4022336A1 (de) 1990-07-13 1992-01-16 Fleissner Maschf Ag Vorrichtung zum durchstroemenden behandeln von bahnfoermigem gut
DE19919757A1 (de) 1999-04-29 2000-11-02 Fleissner Maschf Gmbh Co Siebtrommelvorrichtung zum Trocknen von durchlässigen Warenbahnen

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Publication number Publication date
EP2633251A1 (fr) 2013-09-04
DE102010050044A1 (de) 2012-05-03
WO2012055732A1 (fr) 2012-05-03

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