EP2558805B1 - Dispositif de traitement d'un matériau en bande par passage au travers du matériau - Google Patents

Dispositif de traitement d'un matériau en bande par passage au travers du matériau Download PDF

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Publication number
EP2558805B1
EP2558805B1 EP11724522.5A EP11724522A EP2558805B1 EP 2558805 B1 EP2558805 B1 EP 2558805B1 EP 11724522 A EP11724522 A EP 11724522A EP 2558805 B1 EP2558805 B1 EP 2558805B1
Authority
EP
European Patent Office
Prior art keywords
chamber
sieve drum
air
treatment
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.)
Active
Application number
EP11724522.5A
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German (de)
English (en)
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EP2558805A1 (fr
Inventor
Markus Böhn
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
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Truetzschler Nonwovens and Man Made Fibers GmbH
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Application filed by Truetzschler Nonwovens and Man Made Fibers GmbH filed Critical Truetzschler Nonwovens and Man Made Fibers GmbH
Priority to EP16203804.6A priority Critical patent/EP3165861B1/fr
Publication of EP2558805A1 publication Critical patent/EP2558805A1/fr
Application granted granted Critical
Publication of EP2558805B1 publication Critical patent/EP2558805B1/fr
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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

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.
  • DE 1604872 A1 discloses a method and an apparatus for treating wet material according to the preamble of the first claim, wherein in one embodiment it is shown that the screen drum jacket has the shape of a spiral housing in the rear region.
  • this screen drum is assigned in the region of the wrap around the circumference of the screen drum covering cupping screen blanket.
  • the screen cover is concentric with the screen drum axis, ie the screen cover runs parallel to the screen drum surface. Due to the screen cover designed as a perforated plate, there is a pressure difference between the treatment chamber and the screen drum.
  • Object of the present invention is to improve a device of the generic type.
  • the treatment space thus extends substantially in the manner of a helix, namely towards the rear approximating to the screen drum surface. If the area of the treatment chamber according to the invention comprising the sieve drum is unwound to a plane, this rejuvenation of the treatment space takes account of the fact that the material web travels around the sieve drum uniformly in the rear region of the treatment space only a small amount of gas must flow. The air supply to the treatment room is always carried out in the area in which the wall of the treatment room has the greatest distance to the screen drum surface.
  • the web running direction and thus the direction of rotation of the screen drum can run in the direction of the tapered treatment chamber, i. the material web to be dried enters that region of the treatment space in which its wall has a large distance from the screen drum surface. In the web running direction then decreases the distance from the wall - the treatment room is smaller. In principle, however, a contrary run of the material web is possible.
  • the material web enters the narrow area of the treatment space - this widens in the direction of rotation of the sieve drum.
  • the treatment space can have a constant distance from the sieve drum surface. It is also possible that the wall bounding the treatment space has a different spacing in the middle of the drum width than at the edges.
  • the screen drum surface is surrounded by a screen cover or flow guide elements, such that from the gas flow in the treatment chamber a substantially perpendicular to the screen drum surface Flow arises.
  • the screen cover can have a constant perforation over the width and / or length.
  • To produce a desired flow distribution can also be provided to perform the perforation in the screen cover both across the width and in the circumferential direction differently. Vary here the hole size and / or hole shape and / or the distribution. This is, for example, achievable that the web is evenly sucked across the width.
  • the deflection of the gas flow in the treatment space to the flow in the material web-screen drum surface can also be done with appropriately designed flow guide.
  • This may be arranged in the circumferential direction of the screen drum successively arranged baffles or Stromlinienleit analyses, which are arranged in the form of strips across the width of the drum extending above the drum surface.
  • 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.
  • an aperture B is arranged fixed to the frame in the region not looped by the material web, by means of which a suction in this area is prevented.
  • frame-fixed designed as a perforated plate Lucasleit Quilt Fabric LS is arranged.
  • a screen cover SD designed as a perforated sheet is arranged above the region of the screen drum S which is looped around by the material web M.
  • the screen cover SD is fixed to the frame, i. firmly connected to the housing G.
  • the surrounding the screen drum S housing G is connected via a line system L with a fan having air treatment LA, which sucks and heats the air from the screen drum S.
  • a fan having air treatment LA which sucks and heats the air from the screen drum S.
  • Part of the air from the sieve drum S is here discharged as exhaust air into the open air - according to fresh air is supplied. This results in a removal of expelled from the web moisture.
  • the line system L is designed in such a way that the air supplied to the interior of the housing G - the treatment space BH - flows in uniformly over the width of the screen drum S.
  • the wall W of the housing G delimiting the treatment space BH in the region of the wrap around the material web M runs in the form of a curve approaching the outer circumference of the sieve drum S, such that in the direction of rotation of the sieve drum S the distance a1, a2, a3 to the outer circumference of the sieve drum S (or to the screen cover SD or the screen drum S surrounding flow guide elements) steadily decreases.
  • the treatment space BH between the wall W of the housing G and the outer periphery of the screen drum S tapers in the direction of rotation of the screen drum S.
  • the air introduced via the line system L in the region of the inlet of the material web M flows in the direction of the arrows following the rotation of the screen drum S and is initially redirected by the vacuum of the drum S through the screen cover SD in the direction of the drum S and drawn through the material web M.
  • the flow is distributed evenly over the width of the drum S within the treatment room.
  • the treatment chamber which tapers in the direction of drum rotation, takes into account the air sucked through, stabilizes the uniform flow and produces a drying result that can be achieved with reduced expenditure of energy (heating power, air volume) and over the width of the material web M.
  • the wall W bounding the treatment space BH is formed in the region of the wrap of the material web M from sections of flat surfaces which approach the outer circumference of the sieve drum S in the manner of a polygonal pull. Also in this embodiment decreases in the direction of rotation of the Screening drum S, the distance a1, a2, a3 to the outer circumference of the screen drum S steadily.
  • FIG. 3 is in principle the flow of air within the treatment room BH in the area above the screen drum S spanning screen blanket SD shown.
  • the screen drum S is subjected to negative pressure by means of a fan located in the air treatment LA.
  • the extracted air is mixed with fresh air in the LA air treatment unit and warmed up.
  • the warmed-up air is then introduced into the treatment space surrounding the screen drum S above the screen cover SD, such that the air flow above the screen cover SD essentially follows the surface of the rotating screen drum.
  • FIG. 4 shows the screen drum S in plan view, as a section AA according to FIG. 1 .
  • the suction of the air which has flowed into the interior of the sieve drum S takes place via an expansion chamber E assigned laterally to the sieve drum S, the interior of which is designed concentrically with the axis of the sieve drum S.
  • the inner diameter d E of the expansion chamber is greater than the inner diameter ds of the screen drum S. This allows an optimal outflow of air from the screen drum S - indicated by the flow arrows in the FIG. 4 , In particular, a homogenization of the induced draft across the width of the screen drum is thereby achieved.
  • the expansion chamber E is connected via an air duct with the air treatment LA, not shown here.
  • FIG. 5 an embodiment of the air supply to the treatment room BH is shown.
  • the housing G surrounds the screen drum S with a wall W approaching the surface of the screen drum S in a helical manner, thus forming the treatment space BH.
  • the air coming from the not shown air treatment LA is lowered via a first supply chamber Z with a wedge-shaped Top of a subsequent below the feed chamber Z subsequent deflection U supplied.
  • the air treatment of the treatment space BH takes place on its underside in the region in which the wall W has the largest distance to the surface of the sieve drum S (cf. Fig. 1 and 2 ).
  • Supply chamber Z, deflection chamber U and the treatment chamber BH have the same width - the working width of the screen drum S.
  • a perforated plate structure LB or correspondingly suitable air guide elements arranged. This perforated plate structure LB causes a uniform air admission of the treatment space BH.
  • FIG. 6 shows a possibility of Um Kunststofflessness arrangement, so how the air from the air treatment LA is returned to the treatment room BH.
  • Shown is the arrangement of the described and the air promotion serving parts such as treatment room BH, expansion chamber E, air duct L, supply chamber Z and air conditioning LA in a view from above (compared with the perspective view FIG. 5 ).
  • the expansion chamber E is assigned to one side of the screen drum S and the treatment room BH.
  • the direction of air flow in the parts is indicated by a block arrow.
  • the expansion chamber E can also be arranged on the side of the screen drum S which is opposite the air recirculation (air treatment LA, air line L, supply chamber Z).
  • FIG. 8 a two-sided recirculation air supply, provided in the two air treatments LA and two expansion chambers E. are.
  • the two front ends of the screen drum S is each associated with an expansion chamber, from which the air is supplied to each air treatment LA.
  • FIG. 9 belonging to the two-sided circulating air supply supply chamber Z in the in FIG. 8 arrow shown darg Erasmus.
  • the supply chamber Z has at each end an air duct L and is acted upon by the respective air treatment (not shown) with air.
  • the top of the feed chamber extends from the sides toward the center each sloping, so that the chamber has two wedge-shaped areas.
  • the air supplied on both sides, as indicated by the flow arrows, is conducted uniformly over the width into the deflection chamber U located below the supply chamber Z and from there into the adjoining treatment space BH.

Landscapes

  • 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)

Claims (11)

  1. Dispositif destiné au traitement en continu d'un matériau perméable à gaz sous forme de bande, en particulier au séchage de matière tissée ou non-tissée, doté des caractéristiques suivantes :
    - un tambour à tamis (S) disposé de manière rotative et relié à un générateur de vide, doté d'un périmètre extérieur perméable, dans lequel la bande de matériau à traiter (M) parcourt une partie du périmètre extérieur du tambour à tamis (S),
    - un compartiment de traitement (BH) accueillant le tambour à tamis (S), exposé au gaz de traitement, de préférence de l'air chaud,
    - une couverture perforée (SD) ou un élément déflecteur de flux correspondant, à l'intérieur du compartiment de traitement (BH), entourant le tambour à tamis (S) dans la zone où s'enroule la bande de matériau (M), au moyen de laquelle ou duquel le flux de gaz dans le compartiment de traitement (BH) est guidé vers la surface du tambour à tamis,
    caractérisé en ce que
    la paroi (W) du compartiment de traitement (BH) orientée vers le périmètre extérieur du tambour à tamis dans la zone où s'enroule la bande de matériau (M) comporte dans cette zone un écart décroissant par rapport à la surface du tambour à tamis (S), dans lequel l'écart (a1, a2, a3) par rapport au périmètre extérieur du tambour à tamis (S) diminue de manière continue dans le sens de rotation du tambour à tamis (S).
  2. Dispositif selon la revendication 1, caractérisé en ce que la paroi (W) du compartiment de traitement (BH) orientée vers la bande de matériau (M) est une pièce de boîtier entourant le tambour à tamis (S).
  3. Dispositif selon la revendication 1 ou 2, caractérisé en ce que la paroi (W) du compartiment de traitement (BH) orientée vers la bande de matériau (M) est de forme incurvée.
  4. Dispositif selon la revendication 1 ou 2, caractérisé en ce que la paroi (W) du compartiment de traitement (BH) orientée vers la bande de matériau (M) a la forme d'une série de sections plates adjacentes disposées en enchaînement polygonal.
  5. Dispositif selon l'une des revendications précédentes, caractérisé en ce que le tambour à tamis (S) comporte sur une face une chambre d'expansion (E) reliée au générateur de vide (LA), dotée d'un diamètre intérieur (dE) supérieur au diamètre intérieur (dS) du tambour à tamis (S) .
  6. Dispositif selon l'une des revendications 1 à 5, caractérisé en ce que le tambour à tamis (S) comporte une chambre d'expansion (E) sur chacune de ses deux faces.
  7. Dispositif selon la revendication 6, caractérisé en ce que les deux chambres d'expansion (E) du tambour à tamis (S) sont reliées à un système de traitement d'air (LA) au moyen d'une conduite d'air (L).
  8. Dispositif selon la revendication 6, caractérisé en ce que les deux chambres d'expansion (E) du tambour à tamis (S) sont reliées chacune à un système de traitement d'air (LA) respectif au moyen de conduites d'air (L).
  9. Dispositif selon la revendication 8, caractérisé en ce que les deux chambres d'expansion (E) agencées sur les faces et les deux systèmes de traitement d'air (LA) constituent une entrée d'air ambiant à deux côtés, dans lequel une chambre d'alimentation (Z) appartenant à l'entrée d'air à deux côtés comporte une conduite d'air (L) à chacune des deux extrémités, lesquelles sont reliées respectivement aux systèmes de traitement d'air (LA), de sorte que la chambre d'alimentation (Z) peut être exposée de l'air provenant des systèmes de traitement d'air respectifs (LA).
  10. Dispositif selon la revendication 9, caractérisé en ce que la chambre d'alimentation (Z) comporte une face supérieure, laquelle est inclinée des côtés vers le milieu, de sorte que la chambre d'alimentation (Z) comporte deux compartiments en forme de coin.
  11. Dispositif selon la revendication 10, caractérisé en ce que la chambre d'alimentation (Z) est reliée à une chambre de déviation (U) et cette chambre de déviation (U) est reliée au compartiment de traitement (BH), de sorte que l'air venant de la chambre d'alimentation (Z) peut être conduit au compartiment de traitement (BH) au moyen de la chambre de déviation (U).
EP11724522.5A 2010-04-15 2011-03-19 Dispositif de traitement d'un matériau en bande par passage au travers du matériau Active EP2558805B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP16203804.6A EP3165861B1 (fr) 2010-04-15 2011-03-19 Dispositif de traitement traversant de matériaux en bande

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE102010015080 2010-04-15
DE102010018357A DE102010018357A1 (de) 2010-04-15 2010-04-27 Vorrichtung zum durchströmenden Behandeln von bahnförmigem Material
PCT/DE2011/000293 WO2011127885A1 (fr) 2010-04-15 2011-03-19 Dispositif de traitement d'un matériau en bande par passage au travers du matériau

Related Child Applications (2)

Application Number Title Priority Date Filing Date
EP16203804.6A Division EP3165861B1 (fr) 2010-04-15 2011-03-19 Dispositif de traitement traversant de matériaux en bande
EP16203804.6A Division-Into EP3165861B1 (fr) 2010-04-15 2011-03-19 Dispositif de traitement traversant de matériaux en bande

Publications (2)

Publication Number Publication Date
EP2558805A1 EP2558805A1 (fr) 2013-02-20
EP2558805B1 true EP2558805B1 (fr) 2018-09-12

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EP16203804.6A Active EP3165861B1 (fr) 2010-04-15 2011-03-19 Dispositif de traitement traversant de matériaux en bande
EP11724522.5A Active EP2558805B1 (fr) 2010-04-15 2011-03-19 Dispositif de traitement d'un matériau en bande par passage au travers du matériau

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EP16203804.6A Active EP3165861B1 (fr) 2010-04-15 2011-03-19 Dispositif de traitement traversant de matériaux en bande

Country Status (5)

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US (1) US8997371B2 (fr)
EP (2) EP3165861B1 (fr)
CN (1) CN102859306B (fr)
DE (1) DE102010018357A1 (fr)
WO (1) WO2011127885A1 (fr)

Families Citing this family (7)

* 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
DE102012221380A1 (de) * 2012-11-22 2014-05-22 TRüTZSCHLER GMBH & CO. KG Vorrichtung und Verfahren zum Behandeln eines vorzugsweise bahnförmigen Guts mit einem gasförmigen Behandlungsmedium
DE102013114075A1 (de) 2013-12-16 2015-06-18 TRüTZSCHLER GMBH & CO. KG Vorrichtung und Verfahren zum thermischen Verfestigen einer textilen Warenbahn
DE102015118596A1 (de) * 2015-10-30 2017-05-04 TRüTZSCHLER GMBH & CO. KG Vorrichtung und Verfahren zum thermischen Behandeln einer textilen Warenbahn
WO2017151096A1 (fr) * 2016-02-29 2017-09-08 Kimberly-Clark Worldwide, Inc. Appareil de séchage à passage d'air et procédés de fabrication
US10132564B1 (en) * 2016-03-23 2018-11-20 THC Therapeutics, Inc. Plant dryer with improved convection flow
DE102016109413A1 (de) * 2016-05-23 2017-11-23 Trützschler GmbH + Co KG Textilmaschinenfabrik Trockner für eine textile Warenbahn mit einer verbesserten Heißluftzufuhr

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Also Published As

Publication number Publication date
CN102859306A (zh) 2013-01-02
DE102010018357A1 (de) 2011-10-20
EP3165861A1 (fr) 2017-05-10
US20130025150A1 (en) 2013-01-31
EP3165861B1 (fr) 2020-04-29
US8997371B2 (en) 2015-04-07
EP2558805A1 (fr) 2013-02-20
CN102859306B (zh) 2015-03-25
WO2011127885A1 (fr) 2011-10-20

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