US3800438A - Apparatus for treatment of materials, particularly the heat treatment of webs - Google Patents

Apparatus for treatment of materials, particularly the heat treatment of webs Download PDF

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Publication number
US3800438A
US3800438A US00198927A US3800438DA US3800438A US 3800438 A US3800438 A US 3800438A US 00198927 A US00198927 A US 00198927A US 3800438D A US3800438D A US 3800438DA US 3800438 A US3800438 A US 3800438A
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United States
Prior art keywords
web
nozzle bodies
disposed
ducts
path
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Expired - Lifetime
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US00198927A
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English (en)
Inventor
Windhorst C Meier
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ARTOS GES IND FORSCHUNG und ENTWICKLUNG CA MEIER WINDHORST DT
ARTOS IND FORSCH
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ARTOS IND FORSCH
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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
    • F26B13/104—Supporting materials without tension, e.g. on or between foraminous belts supported by fluid jets only; Fluid blowing arrangements for flotation dryers, e.g. coanda nozzles

Definitions

  • ABSTRACT Apparatus for the heat treatment of webs of materials, particularly textiles, and especially tension-sensitive textiles, e.g., knitwear which comprises the arrangement of a plurality of nozzle bodies forming together a large surface, either below the path of the travelling web, or both below and above that path, each body having outlet openings for the admission of a treatment medium to impinging the web, said apparatus further comprising narrow ducts for the discharge of the treatment medium, all ducts emptying into a larger collecting duct, arranged laterally so as not to interfere with the web on its way out of the apparatus.
  • the advantage of the apparatus according to the invention is that it provides flutter free and substantially pressure-and tension-free movement of loosely guided webs, which are exposed to the current of a gaseous medium.
  • the present invention relates to an apparatus for heat treatment of materials, for instance, the drying or dryheat treatment of webs, e.g., textile webs, with gaseous media; more particularly, the invention relates to such treatment when the webs are guided in tensioning chains of wide stretching machines.
  • these objects are accomplished by arranging below the web to be treated, or both below and above the web, nozzle systems which consist of nozzle bodies disposed parallel to the path of the web to form a large, almost uninterrupted surface.
  • the small gaps of the large surfaces are provided with comparatively narrow, vertical discharge ducts for the treatment medium.
  • the discharge ducts are disposed only, or almost only, in the direction of the web movement. Viewed in the vertical discharge direction, they appear as comparatively short, vertical slots.
  • Their cross sections should preferably be at least three times and at the most, five times the sum of the nozzle outlet openings in the associated nozzle bodies.
  • the vertical discharge or exhaust ducts are connected to collecting ducts of larger size which are arranged transversely to the direction of travel of the web and outside of the immediate range of that path.
  • the discharge of the treatment medium in the larger ducts remains transversely to the sense oftravel of the web, which is desirable, because the heating units and the circulating blowers for the treatment medium are thereby disposed laterally from the web transport, so that their undesirable effect hitherto exerted on the web is eliminated.
  • the cross sections for the streaming media should be at least 30-50 per cent of the cross sections of the ducts facing the web. It has been. proven advisable to provide widened cross sections when using longer vertical discharge ducts.
  • the large surfaces of the nozzle bodies preferably interrupted only by the narrow vertical discharge ducts, act by means of the treatment medium as a cushion or buffer, capable of load carrying, and supporting the web depending on the intensity of the gas stream escaping from the nozzles.
  • the nozzle bodies may be provided with circular or slit-shaped openings.
  • a large number of outlet openings with small diameters of 3-5 mm, evenly distributed over the surface, have proved advantageous for the treatment of the present invention. They provide an excellent supporting cushion at a distance of about 10-15 mm from the web to be carried and treated.
  • the nozzles above the web should have larger outlet openings because of the heat transfer to be brought about. Care should, however, be taken to avoid an arrangement with larger spacings when nozzles with larger outlet openings are used, especially with webs guided with formation of folds, because they, in turn, cause discharge effects transverse to the folds.
  • the outlet openings of the nozzles should then be arranged in rows.
  • the width of the slits should preferably be below 5 mm.
  • a special application of the treatment device according to the invention is used for knitted webs and webs of textured synthetic fibers. These are particularly sensitive to tensioning and to fluttering when guided in wide leading type tensioning chains and subjected to heat treatment to bring about high shrinkage.
  • the web is, in that case, exposed to the dynamic load of the nozzle ventilation with marked transverse fold formation caused by the lead in the tensioning chains.
  • the discharge of the treatment gas occurring transversely to the folds led to higher dynamic loads of pull and pressure, and the Waste gas currents passing through in the direction of the transverse folds led to additional fluttering, and to the danger of sagging folds being sucked in, a similar danger is practically eliminated by the comparatively minimal discharge surface of the discharge slits when compared with the entire nozzle body surface, and particularly, with the discharge occurring preferably transversely to the surfaces.
  • the folds of the textile web are capable of being almost entirely supported by an air cushion formed below the path of the web. This provides ideal conditions for bringing about shrinkage without a fluttering or tensioning phenomena.
  • the apparatus may be designed with limitation of the principle of the air cushioning of buffering formation below the path of the web, whereas-the upper nozzle system may be provided, e.g., with single nozzle members forming a high efficiency nozzle system of a known design.
  • perforated nozzles are arranged to both sides of the nozzle member, with small spacings between the perforations, arranged in rows. Slit nozzles can also be disposed transversely with respect to the travel direction of the web. Between neighboring nozzles members, baffle plates or throttling means are provided for blocking the vertical drainage of the treatment medium.
  • FIG. 1 is a partial section through one embodiment of an apparatus according to the invention
  • FIG. 2 is a plan view seen from above of the nozzle bodies with the different nozzle systems.
  • FIG. 3 is a partial section through a different embodiment of the apparatus.
  • a web 10 is shown moving in folds as indicated by arrows A,A, in the direction from left to right.
  • nozzle bodies 11 and 11a are shown in parallel arrangement for the admission of the treatment or drying medium from supply ducts 11c.
  • the nozzle bodies are arranged only below the path of the web.
  • Each nozzle body has a plurality of outlet openings, whose diameter may be from about 3-5 mm, evenly distributed over the surface of the nozzle body.
  • nozzle bodies 12 As shown in FIG. 2, a series of nozzle bodies 12 is arranged adjacent to nozzle bodies 11, and this series is followed by nozzle bodies 13.
  • narrow vertical discharge or exhaust ducts 16 for the escaping treatment medium are illustrated, which generally are parallel to the direction of the path of the web and which, as may be seen from FIG. 2, are disposed between nozzle bodies 11 and 12, and 12 and 13, respectively.
  • These ducts are capable of removing the treatment gases, after their impingement onto the web and lateral outflow therefrom without dynamic instability or suction effect on the moving web.
  • the sum of the cross sections of the vertical ducts 16 should be at least about three times, and at the most, about five times the sum of the associated nozzle outlet surfaces in bodies ll-l3. In that case there is no danger of unfavorable effects in the current of the waste gases in the range of the discharge ducts.
  • collecting discharge ducts 17 are provided (FIG. 1), usually disposed transversely to the travel of the web, and as shown in the drawing, practically closed with respect to the web.
  • the small slits 18 between adjacent nozzle bodies 11 and 11a could also be closed.
  • the discharge ducts 16 empty into collecting ducts 17, at 19, their diameters have to be enlarged in order to avoid unfavorable flow conditions at those points.
  • nozzle body 12 is shown to have slit-shaped openings 22a which may be exactly in the direction of the travelling web, or 22b at a slight angle thereto.
  • the width of the slits can be between 5-l0 mm. In a modified embodiment, it would be possible to provide more slits having a width of 1.5-2.5 mm.
  • the nozzles and the nozzle bodies, arranged above the path of the web, may be of various designs. They may be, as illustrated in FIG. 1, of the same type as bodies 12 and 13 shown in FIG. 2.
  • nozzle bodies 31 below the web 10 correspond to bodies 11 illustrated in FIG. 1.
  • Duct 37 is a collecting duct corresponding to duct 17 of FIG. 1.
  • the upper nozzle bodies 41 are square shaped and arranged at a greater distance from the path of the web.
  • Vertical discharge ducts 42 are disposed between nozzle bodies 41.
  • An arrangement of this type is desirable, especially when tensioning chains 9 guiding the web, require a larger spacing of the web from the nozzle outlets, or when heavier webs are to be treated.
  • the web will then adjust itself during travel in an equilibrium position near the lower horizontal nozzle body surfaces. This prevents the upper open discharge ducts from damaging the material due to their proximity to the web.
  • baffle plates 43 In order to provide an additional stabilization of the pressure zones in that area, there may be baffle plates 43 or throttles arranged in the discharge ducts 42.
  • blocking nozzles 40 can be used at the lateral boundaries of the nozzle members 41, which may either be spaced apart rows of circular nozzle openings or slit-shaped nozzles.
  • An apparatus for gaseous treatment drying of webs of material traveling in a path comprising:
  • each of said first and second plurality of nozzle bodies includes a pluarlity of approximately evenly disposed circular apertures for directing the gaseous medium towards the web, the walls of adjacent nozzle bodies defining collection ducts therebetween;
  • the apparatus as recited in claim 1 further comprisingtensioning chains for guiding the web at a distance of from 10 to 30 mm from the outlet openings defined by each of said first and second plurality of nozzle bodies, and wherein the circular apertures in each of said first and second plurality of nozzle bodies are approximately 3 to 5 mm in diameter.
  • An apparatus for gaseous treatment and drying of webs of material traveling in a path comprising:
  • first plurality of nozzle bodies positioned on one side of the web and placed one after another along the path of traveling material, said first plurality of nozzle bodies being substantially square-shaped;
  • a second plurality of nozzle bodies positioned on the other side of the web and disposed one after another along the path of traveling material and each flaring to a discharge end, said first and second pluarality of nozzle bodies containing a plurality of circular apertures evenly disposed therethrough for directing the gaseous medium towards the web; plurality of exhaust apertures substantially rectangular and extending longitudinally in the direction of web movement and disposed longitudinally between adjacent sides of each of said first and second plurality of nozzle bodies and disposed so as to be substantially evenly spaced among the circular apertures of said first and second plurality of nozzle bodies for providing an uninterrupted pressure cushion devoid of sharp pressure discontinuity.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Polyamides (AREA)
  • Drying Of Solid Materials (AREA)
US00198927A 1970-11-19 1971-11-15 Apparatus for treatment of materials, particularly the heat treatment of webs Expired - Lifetime US3800438A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19702056889 DE2056889A1 (de) 1970-11-19 1970-11-19 Behandlungsvorrichtung, insbesondere für die Wärmebehandlung von bahnförmigen Materialien

Publications (1)

Publication Number Publication Date
US3800438A true US3800438A (en) 1974-04-02

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Application Number Title Priority Date Filing Date
US00198927A Expired - Lifetime US3800438A (en) 1970-11-19 1971-11-15 Apparatus for treatment of materials, particularly the heat treatment of webs

Country Status (11)

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US (1) US3800438A (en, 2012)
JP (1) JPS5123635B2 (en, 2012)
AR (1) AR198608A1 (en, 2012)
BR (1) BR7107741D0 (en, 2012)
CS (1) CS166035B2 (en, 2012)
DE (1) DE2056889A1 (en, 2012)
FR (1) FR2114603A5 (en, 2012)
GB (1) GB1370939A (en, 2012)
IT (1) IT938584B (en, 2012)
NL (1) NL7115694A (en, 2012)
SU (1) SU476755A3 (en, 2012)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3936953A (en) * 1973-10-10 1976-02-10 Beloit Corporation Air impingement system
US4218001A (en) * 1978-01-21 1980-08-19 Vits-Maschinenbau Gmbh Blow box for suspended guidance and/or conveyance of strip material or sheets
US4467537A (en) * 1979-09-01 1984-08-28 Lindauer Dornier Gesellschaft Mbh. Equipment for heat-treating flat, band-like lengths of material
US6006446A (en) * 1997-04-24 1999-12-28 Pagendarm Technologie Gmbh Apparatus for the treatment, in particular drying, of material webs
US6073368A (en) * 1998-02-21 2000-06-13 A. Monforts Textilmaschinen Gmbh & Co. Drying and/or fixing device
WO2001062478A1 (en) * 2000-02-25 2001-08-30 Nv Solutia Europe S.A. Process and apparatus for the relaxation of interlayer sheet
US20070125876A1 (en) * 2005-07-28 2007-06-07 Ralf Bolling Nozzle system for the treatment of web-shaped material
US20080237289A1 (en) * 2007-03-29 2008-10-02 Horikawa Takatoshi Web transport apparatus and solution casting process
WO2022266781A1 (zh) * 2021-06-22 2022-12-29 苏州市多利伦蚕丝有限公司 一种蚕丝制品生产的定型装置

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2458002A1 (de) * 1974-12-07 1976-06-10 Artos Meier Windhorst Kg Duesenanordnung in duesentrocknern
JPS5836093B2 (ja) * 1977-02-25 1983-08-06 東洋紡績株式会社 焼成装置
JPS6056988B2 (ja) * 1977-02-25 1985-12-12 東洋紡績株式会社 直進型焼成装置
JPS589932U (ja) * 1981-07-14 1983-01-22 日野自動車株式会社 デイ−ゼル機関の燃料噴射装置
DD259429B1 (de) * 1987-03-31 1990-05-09 Buntfaerberei Veb Aerodynamische kompensations- und relaxationseinrichtung fuer textile flaechengebilde
JPS63162941U (en, 2012) * 1987-04-13 1988-10-25
RU2500845C2 (ru) * 2008-04-16 2013-12-10 Имбокс Шукер А/С Способ и устройство для пропитки изделий

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2591621A (en) * 1951-01-08 1952-04-01 Proctor & Schwartz Inc Tenter drier
US2848820A (en) * 1952-10-08 1958-08-26 Svenska Flaektfabriken Ab Method and apparatus for supporting and conveying web-like material
US3070901A (en) * 1956-02-01 1963-01-01 Svenska Flaektfabriken Ab Guiding air-borne webs
US3199224A (en) * 1962-04-03 1965-08-10 Wolverine Equipment Co Apparatus for treating continuous length webs comprising high velocity gas jets
US3577651A (en) * 1968-12-05 1971-05-04 Ind Air Co Inc Apparatus for air-treating sheet material surfaces and the like
US3618226A (en) * 1969-10-24 1971-11-09 Haas Friedrich Maschf Apparatus for continuously drying web material especially textile material
US3672066A (en) * 1970-10-30 1972-06-27 Bechtel Int Corp Microwave drying apparatus

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2591621A (en) * 1951-01-08 1952-04-01 Proctor & Schwartz Inc Tenter drier
US2848820A (en) * 1952-10-08 1958-08-26 Svenska Flaektfabriken Ab Method and apparatus for supporting and conveying web-like material
US3070901A (en) * 1956-02-01 1963-01-01 Svenska Flaektfabriken Ab Guiding air-borne webs
US3199224A (en) * 1962-04-03 1965-08-10 Wolverine Equipment Co Apparatus for treating continuous length webs comprising high velocity gas jets
US3577651A (en) * 1968-12-05 1971-05-04 Ind Air Co Inc Apparatus for air-treating sheet material surfaces and the like
US3618226A (en) * 1969-10-24 1971-11-09 Haas Friedrich Maschf Apparatus for continuously drying web material especially textile material
US3672066A (en) * 1970-10-30 1972-06-27 Bechtel Int Corp Microwave drying apparatus

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3936953A (en) * 1973-10-10 1976-02-10 Beloit Corporation Air impingement system
US4218001A (en) * 1978-01-21 1980-08-19 Vits-Maschinenbau Gmbh Blow box for suspended guidance and/or conveyance of strip material or sheets
US4467537A (en) * 1979-09-01 1984-08-28 Lindauer Dornier Gesellschaft Mbh. Equipment for heat-treating flat, band-like lengths of material
US6006446A (en) * 1997-04-24 1999-12-28 Pagendarm Technologie Gmbh Apparatus for the treatment, in particular drying, of material webs
US6073368A (en) * 1998-02-21 2000-06-13 A. Monforts Textilmaschinen Gmbh & Co. Drying and/or fixing device
WO2001062478A1 (en) * 2000-02-25 2001-08-30 Nv Solutia Europe S.A. Process and apparatus for the relaxation of interlayer sheet
US20030030164A1 (en) * 2000-02-25 2003-02-13 Van De Velde Keyser Herbert Sybrant Process and apparatus for the relaxation of interlayer sheet
US6881362B2 (en) 2000-02-25 2005-04-19 N.V. Solutia Europe S.A. Process and apparatus for the relaxation of interlayer sheet
US20070125876A1 (en) * 2005-07-28 2007-06-07 Ralf Bolling Nozzle system for the treatment of web-shaped material
US20080237289A1 (en) * 2007-03-29 2008-10-02 Horikawa Takatoshi Web transport apparatus and solution casting process
WO2022266781A1 (zh) * 2021-06-22 2022-12-29 苏州市多利伦蚕丝有限公司 一种蚕丝制品生产的定型装置

Also Published As

Publication number Publication date
JPS4853079A (en, 2012) 1973-07-25
IT938584B (it) 1973-01-25
BR7107741D0 (pt) 1973-02-22
NL7115694A (en, 2012) 1972-05-24
FR2114603A5 (en, 2012) 1972-06-30
GB1370939A (en) 1974-10-16
DE2056889A1 (de) 1972-05-25
SU476755A3 (ru) 1975-07-05
AR198608A1 (es) 1974-07-15
JPS5123635B2 (en, 2012) 1976-07-17
CS166035B2 (en, 2012) 1976-01-29

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