EP2686630B1 - Dispositif de traitement en traversée d'un matériau en forme de bande - Google Patents

Dispositif de traitement en traversée d'un matériau en forme de bande Download PDF

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Publication number
EP2686630B1
EP2686630B1 EP12709842.4A EP12709842A EP2686630B1 EP 2686630 B1 EP2686630 B1 EP 2686630B1 EP 12709842 A EP12709842 A EP 12709842A EP 2686630 B1 EP2686630 B1 EP 2686630B1
Authority
EP
European Patent Office
Prior art keywords
drum
openings
opening
sheet
length
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
EP12709842.4A
Other languages
German (de)
English (en)
Other versions
EP2686630A1 (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
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
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Application filed by Truetzschler Nonwovens and Man Made Fibers GmbH filed Critical Truetzschler Nonwovens and Man Made Fibers GmbH
Publication of EP2686630A1 publication Critical patent/EP2686630A1/fr
Application granted granted Critical
Publication of EP2686630B1 publication Critical patent/EP2686630B1/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
    • 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
    • D06B23/02—Rollers
    • D06B23/025—Perforated rollers
    • 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
    • D06B5/00—Forcing liquids, gases or vapours through textile materials to effect treatment, e.g. washing, dyeing, bleaching, sizing impregnating
    • D06B5/02—Forcing liquids, gases or vapours through textile materials to effect treatment, e.g. washing, dyeing, bleaching, sizing impregnating through moving materials of indefinite length
    • D06B5/08—Forcing liquids, gases or vapours through textile materials to effect treatment, e.g. washing, dyeing, bleaching, sizing impregnating through moving materials of indefinite length through fabrics

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 known screening drum has an outer circumferential surface made of perforated sheet metal. This screen drum surface is additionally coated with a metallic screen cloth to even out the flow conditions.
  • the DE 44 22 508 C1 describes a sieve drum of a drum dryer, consisting of a perforated drum shell and a screen fabric stretched over it. Between drum shell and screen fabric are metal strips for spacing.
  • the openings have a cross section, wherein this may be a tapering in the radial direction of the drum cross section.
  • the smallest cross section of the opening is the opening cross section, which is the maximum gas flow rate certainly.
  • the maximum width of the opening cross section is the opening width of the opening.
  • the openings each have an opening width d k and the transition to the drum surface a rounding radius r, wherein the ratio of rounding radius r to opening width d K of the openings is greater than 0.2, preferably between 0.3-0.4
  • the openings have a flow-through length l K.
  • the flowing length is the length of the respective opening in the drum plate in the radial direction.
  • the flow-through length l K may be equal to the thickness D of the drum plate.
  • the opening may be a round hole, wherein the diameter of the hole corresponds to the opening width.
  • the opening may be a slot, a square hole or a polygonal hole.
  • the openings may have a flow-through length which is greater than the thickness of the drum plate.
  • the openings may be designed as passages introduced in the drum plate, in the manner of collar passages.
  • the collar of each opening forms a directed towards the middle of the drum (radial direction) channel, which defines the length flowed through.
  • the gas flowing through the opening in the drum sheet is thus directed through the adjoining duct. Overall, this results in a reduction of the flow resistance.
  • Such a shaped drum surface causes a lower pressure loss when flowing through, preferably a lower static pressure loss.
  • the gas flow rate limiting opening cross-section ie the gas flow rate limiting opening width or the gas flow rate limiting diameter of the openings, in the radial direction below the sheet metal underside lie the material web carrying drum plate.
  • the opening cross-section can also lie within the bottom of the sheet metal.
  • the openings may have a tapered cross-section in the radial direction.
  • the openings may have a substantially conically tapering cross-section in the radial direction.
  • the openings may have a tapered transition region with a consistent or nearly constant cross-section channel in the radial direction.
  • the openings are for example. Made as produced by forming collar passages. The opening diameter decreases steadily starting from the upper side of the sheet metal. Depending on the type of forming tools used, a very rounded transition from the drum surface to the channel area formed by the collar or draft can be created. However, the openings may also be made by any other method. Thus, the opening can also be first perforated and embossed to produce the rounding radius. It is also possible to make a substantially conically tapered transition region between the drum surface and the lower end of the channel, the passage.
  • the openings have a length / diameter ratio between 1 and 4, preferably between 1 and 2, wherein the ratio is formed from the length of the opening channel (plate surface - lower end channel) and the gas flow rate determining diameter of the opening.
  • 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.
  • the invention is likewise applicable to heat-setting devices in which, for example, a fleece consisting of fusible fibers and filaments is treated with hot air flowing through it and thus solidified.
  • FIG. 1 shows a drum 1, preferably a screen drum 1 with a gas-permeable, preferably air-permeable drum shell 2.
  • the drum shell 2 is the outer peripheral surface of the drum first
  • the drum 1 is rotatably mounted in a housing, not shown, and connected to a vacuum generator, not shown.
  • the drum shell 2 is surrounded by a treatment room, not shown.
  • a gaseous treatment medium preferably air
  • the suction air generator not shown, generates a negative pressure in the interior of the drum.
  • a web-shaped material to be treated can be placed on the gas-permeable drum shell 2.
  • the gaseous treatment medium can at least partially flow through the material arranged on the drum shell 2 and the openings 4 of the drum shell 2 into the interior of the drum.
  • the web-shaped material can be dried, for example.
  • the gaseous treatment medium can be removed from the interior of the drum, processed and returned to the treatment room.
  • the cylindrical drum shell 2 of the drum 1 consists of a sheet with a plurality of openings 4 distributed over the surface, which may be evenly distributed in a grid but also unevenly.
  • the drum shell 2 has a drum surface 5.
  • FIG. 1 shows an enlarged section of the drum shell 2 with the openings 4.
  • the illustrated openings 4 are round holes. However, the openings may be of any shape.
  • the openings 4 can be made as collar passages.
  • openings 4 are round holes. These have a gas flow rate determining diameter corresponding to the opening width. However, it can alternatively be provided openings of any shape.
  • openings have a channel 6 formed by the collar.
  • the channel 6 of each opening 4 has the diameter.
  • the entire length of the channel K and thus the opening 4- from the drum surface to the lower edge of the collar - is indicated by l K.
  • FIG. 2 is the ratio of channel length l K to opening diameter greater than 1.
  • the diameter of the opening 4 is greater than the channel length l K.
  • the ratio of channel length l K to opening diameter is therefore smaller than 1.
  • the openings 4 in the FIGS. 2 and 3 are rounded at the transition to the drum surface 5.
  • the openings have a rounding radius r at the transition to the drum surface 5.
  • the openings 4 are thus rounded off at the transition to the drum surface 5 with the rounding radius r.
  • the ratio between rounding radius r and opening diameter d k is preferably greater than 0.2, more preferably between 0.3 and 0.4.
  • FIG. 4 another embodiment of an opening is shown. This opening has no collar.
  • the opening 4 has a length l K , which extends in the radial direction of the drum 1.
  • the length l K of the opening 4 is equal to the thickness D of the sheet.
  • the opening 4 is also a round hole which has a gas flow rate defining opening width. This opening width corresponds to the opening diameter.
  • the opening 4 is also rounded off at the transition 6 to the drum surface 5 with a rounding radius r.
  • the ratio of rounding radius r to opening width is preferably greater than 0.2, more preferably between 0.3 and 0.4. At this rounding radius, it has been found that the flow of the gaseous treatment medium flowing through the orifice is optimal.

Landscapes

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

Claims (9)

  1. Dispositif de traitement par traversée d'une bande perméable au gaz de matériau textile, en particulier pour le séchage de matières tissées ou non tissées, avec
    un tambour de tamisage (1) pouvant être raccordé à un générateur de dépression et logé de manière rotative avec une surface périphérique extérieure conçue de manière perméable, portant la bande de matériau en une tôle avec une pluralité d'ouvertures agencées dans celle-ci,
    dans lequel les ouvertures (4) présentent une longueur traversée (lk) qui est plus grande que l'épaisseur (D) de la tôle de tambour (2), caractérisé en ce que les ouvertures (4) sont réalisées en tant que passages introduits dans la tôle de tambour (2), comme des passages de collet (6).
  2. Dispositif selon la revendication 1, caractérisé en ce que le diamètre (dk) délimitant le débit de gaz des ouvertures (4) se trouve dans le sens radial du tambour (1) sous le côté inférieur de la tôle de tambour (2) portant la bande de matériau.
  3. Dispositif selon la revendication 1 ou 2, caractérisé en ce que les ouvertures (4) présentent dans le sens radial une section transversale se rétrécissant.
  4. Dispositif selon la revendication 3, caractérisé en ce que les ouvertures (4) présentent dans le sens radial une section transversale se rétrécissant sensiblement conique.
  5. Dispositif selon l'une quelconque des revendications 1 à 4, caractérisé en ce que les ouvertures (4) présentent une zone de transition se rétrécissant avec un canal (6) s'y raccordant dans le sens radial de section transversale constante ou presque constante.
  6. Dispositif selon l'une quelconque des revendications précédentes, caractérisé en ce que les ouvertures (4) présentent un rapport longueur/diamètre (lk/dk) entre 1 et 4, de préférence entre 1 et 2, dans lequel le rapport est formé à partir de la longueur (lk) du canal d'ouverture (surface de tôle - extrémité inférieure canal) et le diamètre (dk) déterminant le débit de gaz de l'ouverture (4).
  7. Dispositif de traitement d'une marchandise en forme de bande, en particulier pour le séchage d'une bande de marchandises de préférence textile, avec un agent de traitement gazeux, avec
    un tambour (1) qui présente une enveloppe de tambour (2) perméable au gaz qui est formée à partir d'une tôle de tambour qui présente une pluralité d'ouvertures, dans lequel l'enveloppe de tambour (2) présente une surface de tambour (5) sur laquelle la marchandise à traiter peut être placée, dans lequel les ouvertures (4) sont arrondies sur la transition à la surface de tambour (5),
    caractérisé en ce que
    les ouvertures (4) présentent respectivement une largeur d'ouverture B et la transition à la surface de tambour (5) présente un rayon d'arrondi r, dans lequel le rapport entre le rayon d'arrondi (r) et la largeur d'ouverture B des ouvertures (4) est entre 0,3-0,4.
  8. Dispositif selon la revendication 7, caractérisé en ce que les ouvertures (4) présentent une longueur (lk) traversée, dans lequel la longueur (lk) traversante est identique à l'épaisseur (D) de la tôle de tambour (2).
  9. Dispositif selon l'une quelconque des revendications 7 à 8, caractérisé en ce que l'ouverture (4) est un trou rond, dans lequel le diamètre du trou correspond à la largeur d'ouverture B.
EP12709842.4A 2011-03-14 2012-03-14 Dispositif de traitement en traversée d'un matériau en forme de bande Not-in-force EP2686630B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE102011013927 2011-03-14
DE102011113834A DE102011113834A1 (de) 2011-03-14 2011-09-21 Vorrichtung zum durchströmenden Behandeln von bahnförmigem Material
PCT/EP2012/054465 WO2012123497A1 (fr) 2011-03-14 2012-03-14 Dispositif de traitement en traversée d'un matériau en forme de bande

Publications (2)

Publication Number Publication Date
EP2686630A1 EP2686630A1 (fr) 2014-01-22
EP2686630B1 true EP2686630B1 (fr) 2018-11-07

Family

ID=46756939

Family Applications (1)

Application Number Title Priority Date Filing Date
EP12709842.4A Not-in-force EP2686630B1 (fr) 2011-03-14 2012-03-14 Dispositif de traitement en traversée d'un matériau en forme de bande

Country Status (4)

Country Link
EP (1) EP2686630B1 (fr)
CN (1) CN103429980B (fr)
DE (1) DE102011113834A1 (fr)
WO (1) WO2012123497A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102014105060A1 (de) * 2014-04-09 2015-10-15 Trützschler GmbH + Co KG Textilmaschinenfabrik Trockner für eine textile Warenbahn

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR963222A (fr) * 1950-07-01
GB644594A (en) * 1947-07-17 1950-10-11 Walmsleys Bury Ltd Improvements in or relating to perforated rolls for paper-making machines and the like
DE1088797B (de) * 1957-06-08 1960-09-08 Doerries A G O Saugwalze zum Entwaessern von Stoff-, insbesondere Papierstoffbahnen
US4076582A (en) * 1977-04-04 1978-02-28 Diamond International Corporation Suction roll sealing strip cleaning structure
DE4010430A1 (de) * 1990-03-31 1991-10-02 Guenter Schirm Trommelfaerbemaschine
DE4022336A1 (de) 1990-07-13 1992-01-16 Fleissner Maschf Ag Vorrichtung zum durchstroemenden behandeln von bahnfoermigem gut
DE4422508C1 (de) 1994-06-28 1996-02-15 Fleissner Maschf Gmbh Co Vorrichtung zum durchströmenden Behandeln von Textilgut od. dgl.
JP2006077337A (ja) * 2004-09-08 2006-03-23 Nissen Corp 布帛の液流式処理装置における布帛牽引装置
DE102006007834A1 (de) * 2006-02-17 2007-09-06 Fleissner Gmbh Trommelschale zur Erzeugung von Strukturen und/oder Reliefmuster auf der Oberfläche eines gewebten oder nicht gewebten Zellenmaterials oder Vlieses

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Also Published As

Publication number Publication date
DE102011113834A1 (de) 2012-09-20
EP2686630A1 (fr) 2014-01-22
CN103429980B (zh) 2015-08-26
CN103429980A (zh) 2013-12-04
WO2012123497A1 (fr) 2012-09-20

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