EP0063642B1 - Dispositif pour le séchage par air chaud de matières textiles - Google Patents

Dispositif pour le séchage par air chaud de matières textiles Download PDF

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Publication number
EP0063642B1
EP0063642B1 EP81109658A EP81109658A EP0063642B1 EP 0063642 B1 EP0063642 B1 EP 0063642B1 EP 81109658 A EP81109658 A EP 81109658A EP 81109658 A EP81109658 A EP 81109658A EP 0063642 B1 EP0063642 B1 EP 0063642B1
Authority
EP
European Patent Office
Prior art keywords
drying
textile material
drying zone
hot air
conveyor belt
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
Application number
EP81109658A
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German (de)
English (en)
Other versions
EP0063642A1 (fr
Inventor
Gerhard Petersohn
Rolf Walter
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.)
Brueckner Trockentechnik GmbH and Co KG
Original Assignee
Brueckner Trockentechnik 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.)
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Publication date
Application filed by Brueckner Trockentechnik GmbH and Co KG filed Critical Brueckner Trockentechnik GmbH and Co KG
Publication of EP0063642A1 publication Critical patent/EP0063642A1/fr
Application granted granted Critical
Publication of EP0063642B1 publication Critical patent/EP0063642B1/fr
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    • 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
    • F26B13/101—Supporting materials without tension, e.g. on or between foraminous belts
    • F26B13/103—Supporting materials without tension, e.g. on or between foraminous belts with mechanical supporting means, e.g. belts, rollers, and fluid impingement arrangement having a displacing effect on the materials

Definitions

  • the invention relates to a device according to the first part of claim 1.
  • a device of this type is known from DE-A-2 301 938.
  • the series connection of inflation and suction drying zones allows the textile material to be dried intensively on the one hand, but on the other hand to allow the textile material to shrink freely.
  • the nozzle boxes of the inflation drying zone are provided with hot air outlet slots directed vertically onto the carrier tape. If the beginning of a web-shaped textile material runs into this drying zone, the beginning of the web tends to roll up when the first, vertically directed air jet hits the goods from below. This rolling up of the beginning of the web hinders the further movement of the textile goods through the dryer and can lead to malfunctions.
  • the invention is therefore based on the object of designing the device according to the first part of claim 1 in such a way that the beginning of a textile web entering the device is prevented from curling up.
  • a very flat hot air jet which acts at an angle of 10 to 20 ° to the horizontal and acts in the transport direction of the textile material, hits the textile material through the first upper nozzle box of each inflation drying zone, the undesired rolling up of the beginning of the web (under the effect of the first hot air jet directed from below).
  • the first lower nozzle box of each inflation drying zone is arranged below the second upper nozzle box. There is thus no lower nozzle box blowing upwards under the first upper nozzle box with the particularly flatly inclined outlet slot.
  • the device 1 illustrated in FIGS. 1 and 2 is used for hot air drying of textile goods 3 which are moved continuously in the direction of the arrows 2 (that is to say in the longitudinal direction).
  • This illustrated exemplary embodiment is a drying device 1 in which for transporting the Textile goods 3, two superposed, continuous longitudinal support belts are provided, each of which can be formed in the usual way by a screen belt or another suitable perforated support belt.
  • each carrier tape 4, 5 is used to place the textile goods 3 to be dried, so that the device 1 has two superimposed drying levels which are passed through one after the other by the textile goods 3 (in the direction of the arrow 2);
  • the textile material 3 is therefore first dried in the upper floor formed by the upper carrying belt 4 and then (in opposite directions) in the second floor below, which is formed by the lower carrying belt 5.
  • the inlet and the outlet for the textile material 3 are thus on the same end face 1 a of the device 1.
  • the device 1 has a housing 6, which is designed in a customary manner in the usual manner, and is divided in the longitudinal direction in each drying level into a plurality of drying zones with different air routing which are successively penetrated by the associated support tape 4 or 5.
  • each drying level namely the drying zones 7 to 10 in the upper drying level and the drying zones 11 to 14 in the lower drying level , each seen in the order in which the textile goods 3 pass through them (according to arrow 2).
  • Drying zones 7 and 9 of the upper drying level and 11 and 13 of the lower drying level each form an inflation drying zone
  • drying zones 8 and 10 of the upper level and 12 and 14 of the lower level are each designed as suction drying zones, so that the inflation drying zones 7, 9, 11 and 13 and the suction drying zones 8, 10, 12, 14 are arranged alternately over the length of the device 1 or each drying floor.
  • drying zones 7 to 10 of the upper floor are each arranged directly above corresponding drying zones 11 to 14 of the lower floor, with an inflation drying zone lying above a suction drying zone or vice versa and two drying zones one above the other (i.e. 7 and 14, 8 and 13, 9 and 12 and 10 and 11) of both floors form a drying section;
  • the drying zones 7 to 14 have two types of air flow which are different in principle.
  • the air supply and the air discharge are on the same side of the associated support belt 4 or 5, so that the hot air in the form of a convection flow with the loose in these drying zones on the support belt 4 or 5 Textile 3 comes into contact;
  • the suction drying zones 8, 10, 12, 14 the air supply is arranged above and the air discharge below the carrier belt, so that the textile material 3 flows through the hot air in these drying zones and is pressed onto the carrier belt 4 and 5, respectively. H. in other words, the hot air is sucked through the textile material 3 in these suction drying zones 8, 10, 12, 14.
  • Each inflation drying zone 7, 9, 11, 13 is constructed essentially in the same way and contains a group of nozzle boxes (upper nozzle boxes 15) that can be supplied with hot air and extend over the entire width of the fabric (see FIG. 2) above and below the carrying belt 4 or 5 and lower nozzle boxes 16).
  • the nozzle boxes 15 of the upper group of each inflation drying zone have hot air outlet slots 17, 17a directed obliquely towards the textile material 3 in the transport direction (arrow 2) (cf. also FIG. 3).
  • the outlet slot 17a of the first nozzle box 15 of each group is inclined at an angle IX of approximately 10 to 20 °, preferably approximately 15 °, to the horizontal, while the outlet slots 17 of the other nozzle boxes 15 are inclined the horizontal form an angle ⁇ of approximately 45 to 75 °, preferably approximately 60 °.
  • the nozzle boxes 16 of the lower group of each inflation drying zone have hot air outlet slots 18 directed approximately perpendicular to the carrier tape 4 or 5.
  • these outlet slots 18 of the lower nozzle boxes 16 are arranged offset in the longitudinal direction of the device 1 with respect to the oblique outlet slots 17, 17a of the upper nozzle boxes 15 (see in particular FIG. 3).
  • This last-explained arrangement leads in an extremely favorable manner to the fact that the textile material 3 is lifted and pressed against this carrier belt 4, 5 during its transport through each inflation drying zone 7, 9, 11, 13 in constant alternation from the associated carrier belt 4, 5, the inflation drying zones So it runs through in waves.
  • the advantage of the outlet slots 17 directed obliquely against the carrier tape 4, 5 or the textile material 3 located thereon is a stabilization of the textile material 3 during its transport (even if it is multi-lane textile material), while the advantage of the at the flatter angle IX directed outlet slots 17a of the first nozzle box 15 lies in that a longitudinal curling of the textile goods 3 is prevented when new goods arrive. It is furthermore expedient not to provide any lower nozzle box 16 which blows out upwards under these first upper nozzle boxes 15 (with the flatly inclined outlet slot 17a).
  • the hot air emerging from the upper and lower nozzle boxes 15, 16 and their outlet slots 17, 17a and 18 is shown in FIG. 3 by dashed arrows.
  • low-friction guide elements 19 In order to prevent the textile material 3 from being grinded, braked or possibly diverted on the undersides of these nozzle boxes 15 during transport below the upper nozzle boxes 15 of each inflation drying zone 7, 9, 11, 13, a number of is located just below each upper nozzle box group arranged in the direction of movement of the textile material 3, low-friction guide elements 19 (see FIG. 3).
  • These guide elements 19 can be narrow tapes, cords, wires or similar elements which consist of or are coated with low-friction material and which are arranged at a sufficient distance from one another (viewed in the transverse direction of the device 1), so that the hot air escaping from the upper nozzle boxes 15 in the direction of the textile material 3 can flow through there without significant impairment.
  • the suction drying zones 8, 10, 12, 14 are also essentially of the same design.
  • a vacuum box 20 which also extends over the entire width of the fabric, under the carrying belt 4 or 5 (if necessary, several such vacuum boxes can of course also be arranged in each suction drying zone).
  • Each vacuum box 20 has a suitable perforation on its upper side 20a directed against the carrier tape 4 or 5 and extends in the longitudinal direction of the device 1 almost over the entire effective length of the associated suction drying zone.
  • a particularly expedient structure of the device 1 results from the cross-sectional illustration in FIG. 2.
  • the drying section is formed by the suction drying zone 8 lying above and the inflation drying zone 13 lying underneath.
  • Each drying section of the device 1 is now assigned a single circulating air fan (for example 21 in FIG. 2) in such a way that the two drying zones lying one above the other (upper suction drying zone 8 and lower inflation drying zone 13) are successively from the same hot air stream (dashed arrows 22) be enforced.
  • a suitable heat exchanger 23 of conventional design is expediently connected upstream of the suction side of the fan 21.
  • each drying section In each drying section, a part of the circulating air can be discharged in the usual way via a pipe connection 24 and via a manifold 25 (common for all drying sections), while a corresponding proportion of fresh air is newly introduced (which is not illustrated in more detail).
  • the fan 21 is on the side arranged on the left long side.
  • the fan (not shown) assigned to this suction drying zone 14 not only sucks in circulating air from the interior of the device housing 6, but also cool fresh air to a considerable extent in order to be able to bring about the desired cooling of the textile material 3.
  • a corresponding device which essentially contains a suction hood 26 extending over the entire working width (perpendicular to the plane of the drawing in FIG. 1) of the device 1 and a screen plate 27 installed in the end face 1 of the device 1 or the housing 6 .
  • the suction hood 26 runs from the end face 1a of the device 1, that is to say from the sieve plate 27, in the longitudinal direction of the device 1, inclined in the direction of the textile material 3, this suction hood 26 having approximately the same length as this suction drying zone 14 Suction drying zone 14 supplied cool fresh air (arrows 28) mixed with warm circulating air (arrows 29), so that the textile material 3 flows through this mixed air and is cooled in a favorable manner. At the same time, the temperature of the mixed air is increased before the circulating air is finally heated up in the usual way with the aid of the heat exchanger assigned to the fan. Sufficiently dry and cool fresh air can thus be continuously introduced into the entire air circulation system of the device 1 through the suction hood 26 and the sieve plate 27.
  • the last drying zone could of course also be formed in a drying device with only one floor. If only the upper floor were present in FIG. 1, then the suction drying zone 10 would be the last drying zone passing through the textile material and would accordingly be equipped with devices for introducing the cool fresh air.

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

Claims (7)

1. Dispositif de séchage à l'air chaud de produit textile en déplacement continu, dispositif comprenant au moins un ruban transporteur perforé, qui fait passer le produit textile par plusieurs zones de séchage, ainsi que des organes dirigeant de l'air chaud sur le produit textile, des tuyères en caisson d'arrivée d'air et des organes d'évacuation d'air se trouvant dans au moins une zone de séchage par insufflation aussi bien sur le côté supérieur que sur le côté inférieur du ruban transporteur, de manière que l'air chaud entre en contact des deux côtés, sous forme d'un courant de convection, avec le produit textile qui repose de manière lâche sur le ruban transporteur dans cette zone à insufflation, tandis que les organes d'arrivée d'air sont placés au-dessus du ruban transporteur et les organes d'évacuation d'air sont placés sous le ruban transporteur dans au moins une zone de séchage à aspiration, de manière que le produit textile soit traversé par l'air chaud dans cette zone à aspiration et comprimé contre le ruban transporteur, dispositif caractérisé en ce que les tuyères supérieures en caisson (15) de chaque zone de séchage par insufflation (7, 9, 11, 13) comportent des fentes (17, 17a) de sortie d'air chaud qui sont orientées obliquement sur le produit textile (3) dans le dans le sens (2) de transport de ce produit, la fente de sortie (17a) de la première tuyère supérieure en caisson (15) d'une zone de séchage par insufflation - considérée dans le sens de transport (2) du produit textile - étant inclinée sous un angle (α) de 10 à 20° sur l'horizontale, tandis que les fentes de sortie (17) des autres tuyères supérieures en caisson (15) inscrivent un angle (ß) de 45 à 75° avec l'horizontale.
2. Dispositif selon le revendication 1, caractérisé en ce que la première tuyère inférieure en caisson (16) - considérée dans le sens du transport du produit textile - de chaque zone de séchage à insufflation (7, 9, 11, 13) est disposée sous la seconde tuyère supérieure (15).
3. Dispositif selon la revendication 1, caractérisé en ce que les tuyères inférieures en caisson (16) de chaque zone de séchage à insufflation (7, 9, 11, 13) comportent des fentes (18) de sortie d'air chaud qui sont dirigées perpendiculairement sur le ruban transporteur (4, 5) et qui sont décalées dans la direction de la longueur du dispositif par rapport aux fentes obliques de sortie (17) des tuyères supérieures (15).
4. Dispositif selon la revendication 1, caractérisé en ce que les zones de séchage (7 à 14) se trouvent sur deux étages superposés par lesquels le produit textile (3) passe successivement et dont chacun est équipé d'un ruban transporteur en déplacement continu, une zone de séchage à insufflation et une zone de séchage à aspiration des deux étages étant directement superposées et formant un compartiment.
5. Dispositif selon la revendication 4, caractérisé en ce que chaque compartiment de séchage (par exemple 8, 13) est équipé d'un unique ventilateur (21) destiné à faire circuler l'air et combiné avec un échangeur de chaleur (23) de manière que les deux zones superposées de séchage (par exemple 8, 13) soient balayées successivement par le même courant d'air chaud (22).
6. Dispositif selon la revendication 5, caractérisé en ce que le ventilateur (21) des compartiments de séchage voisins dans la direction de la longueur du dispositif (1) est placé alternativement sur un côté longitudinal du dispositif et sur l'autre.
7. Dispositif selon la revendication 1, caractérisé en ce que la dernière zone de séchage par laquelle passe le produit textile (3) est une zone à aspiration (14) qui est équipée d'accessoires (26, 27) d'introduction d'air frais et froid (28) qui couvrent la totalité de la largeur de travail du dispositif (1).
EP81109658A 1981-04-28 1981-11-12 Dispositif pour le séchage par air chaud de matières textiles Expired EP0063642B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19813116838 DE3116838A1 (de) 1981-04-28 1981-04-28 Vorrichtung zur heissluft-trocknung von textilgut
DE3116838 1981-04-28

Publications (2)

Publication Number Publication Date
EP0063642A1 EP0063642A1 (fr) 1982-11-03
EP0063642B1 true EP0063642B1 (fr) 1983-11-09

Family

ID=6130993

Family Applications (1)

Application Number Title Priority Date Filing Date
EP81109658A Expired EP0063642B1 (fr) 1981-04-28 1981-11-12 Dispositif pour le séchage par air chaud de matières textiles

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EP (1) EP0063642B1 (fr)
DE (2) DE3116838A1 (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3727280A1 (de) * 1987-08-16 1989-03-02 Brueckner Trockentechnik Gmbh Vorrichtung zur waermebehandlung einer warenbahn
DE8910019U1 (de) * 1989-08-21 1990-12-20 Hänsel Textil GmbH & Co, 58636 Iserlohn Vorrichtung zur herstellung von kunststoffolien mit rasterfoermig aufgedruckten klebstoffpunkten
DE4131636C2 (de) * 1991-09-23 1999-04-22 Brueckner Trockentechnik Gmbh Tragbandtrockner zur Heißluftbehandlung einer breitgeführten textilen Warenbahn
DE19546344A1 (de) * 1995-12-12 1997-06-19 Babcock Textilmasch Vorrichtung zum Wärmebehandeln von durchlaufenden Warenbahnen
DE112011103033B4 (de) 2010-09-10 2023-02-09 Durr Systems, Inc. (n.d.Ges. d. Staates Delaware) Luftbalkenanordnung zum Trocknen von Tissue-Papier auf einem Band
DE102013223150A1 (de) * 2013-11-13 2015-05-28 Sandvik Materials Technology Deutschland Gmbh Trockner und Verfahren zum Trocknen von flächigen Materialien

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB777250A (en) * 1952-10-08 1957-06-19 Svenska Flaektfabriken Ab Improved apparatus for supporting and conveying web-like materials
DE1211478B (de) * 1959-04-23 1966-02-24 Haas Friedrich Maschf Trockner fuer aus der Nasspartie kommende Zellstoffbahnen
FR1282869A (fr) * 1961-02-23 1962-01-27 Fr Drabert Sohne Maschinenfabr Installation de séchage, en particulier pour le séchage des tissus
GB1242455A (en) * 1967-08-26 1971-08-11 Friedrich Haas Gmbh Maschf A textile material drying apparatus
US3559301A (en) * 1968-07-29 1971-02-02 Egan Machinery Co Air flotation system for conveying web materials
DE1951625A1 (de) * 1969-10-14 1971-04-29 Friedrich Haas Gmbh & Co Masch Trockner fuer Gutsbahnen,vorzugsweise Trikotagen
DE2301938A1 (de) * 1973-01-16 1974-07-25 Brueckner Apparatebau Gmbh Verfahren und vorrichtung zur heisslufttrocknung einer nassbehandelten warenbahn
DE2320481C2 (de) * 1973-04-21 1982-11-11 Vepa AG, 4125 Riehen, Basel Textilwärmebehandlungsvorrichtung insbesondere Spannrahmen
IT1084101B (it) * 1977-06-08 1985-05-25 Essico S R L Essiccatoio continuo per tessuti

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Publication number Publication date
DE3161381D1 (en) 1983-12-15
EP0063642A1 (fr) 1982-11-03
DE3116838A1 (de) 1982-11-11

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