US3777408A - Installations for the treatment, in gaseous medium, of a strip product - Google Patents

Installations for the treatment, in gaseous medium, of a strip product Download PDF

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Publication number
US3777408A
US3777408A US00165494A US3777408DA US3777408A US 3777408 A US3777408 A US 3777408A US 00165494 A US00165494 A US 00165494A US 3777408D A US3777408D A US 3777408DA US 3777408 A US3777408 A US 3777408A
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United States
Prior art keywords
blower
apertures
band
contour
groups
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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 - Lifetime
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US00165494A
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English (en)
Inventor
P Marchal
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Air Industrie SA
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Air Industrie SA
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Publication date
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Publication of US3777408A publication Critical patent/US3777408A/en
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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
    • F26B13/101—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 The band of product moves through a treatment zone [30] Foreign Application Priority Data Aug. 10, 1970 France......................... «
  • blower walls of the caisof the contour is greater than half the'pitch by which the groups of blower apertures are distributed.
  • the invention relates to installations enabling the carrying out, in a gaseous medium, on a product in a band, of treatments of various natures, especially chemical, physical, or physical chemical treatments.
  • the invention relates more particularly, because it is in this case that its application seems to offer the most advantage, but not exclusively, among these installations, to those for the drying of a product in a band, especially in a flexible, deformable and fragile band.
  • treatment gas in such an installation a treatment zone in which the band or strip product is moved, this treatment zone being situated facing one or several blower caissons supplied by gas, called treatment gas.
  • blower caisson has, on the side of the treatment zone, blower walls comprising,
  • blower apertures to ensure the maintenance and to contribute to the treatment of the band of product
  • the installation according to the invention is characterized by the fact that,
  • blower apertures form groups which have distributed along the direction of movement of the band of product and which each comprise, on one hand, blower apertures arranged along a contour of rectangular shape, of which the large side is perpendicular to the direction of movement of the band of product and has a dimension at least equal to the maximum width of the band of product, and, on the other hand, blower aper-, tures arranged along median lines regularly spaced and rejoining the two large sides of the abovesaid contour,
  • the inlet apertures are arranged inside the contour
  • the small side of the contour being greater than half the pitch along which are distributed the groups of blower apertures,
  • the sum of the sections of the outlet passages being greater than the sum of the sections of the blower and inlet apertures.
  • FIG. 1, of these drawings is'a diagrammatic view in perspective of one embodiment of an installation constructed according to a first embodiment of the invention.
  • FIG. 2 is a partial view in perspective of an installation constructed according to a second embodiment of the invention.
  • FIG. 3 is a partial view in perspective of a third em- I bodiment of an installation constructed according to the invention.
  • FIG. 1 there is shown an installation for the drying of a band of product 1 moving horizontally in a treatment zone 2 from one side to the other ofvwhich occur arranged several blower caissons 3.
  • Each blower caisson 3 has, on the side of the treatment zone 2, a blower wall 4 comprising,
  • blower apertures 5 to ensure the maintenance and to contribute to the treatment of the band of product 1,
  • outlet passages 8 to remove the gas blown into the treatment zone 2 by the abovesaid blower apertures 5 and inlet 7 apertures.
  • the blower apertures 5 form groups 6 which are distributed along the direction of movement of the band of product 1 and which comprise each,
  • blower apertures 5 arranged along a contour L of rectangular shape, of which the large side is perpendicular to the direction of movement XX of the band of product 1 and has a dimension at least equal to the maximal width of the band of product 1,
  • blower apertures 5 arranged along median lines M spaced regularly and rejoining the two large sides of the abovesaid contour L.
  • the inlet apertures 7 are arranged inside the contour And the outlet passages 8 are arranged between each contour L.
  • each inlet aperture 7 is greater than the section of each blower aperture 5.
  • the small side of the contour L is greater than half of the pitch P along which are distributed the groups 6 of blower apertures 5.
  • the sum of the sections of the outlet passages 8 is greater than the sum of the sections of the blower and inlet 7 apertures.
  • the median lines M of a same group 6 of blower apertures 5 are parallel between themselves.
  • median lines M may be parallel to the direction of movement XX of the band of product 1 (FIG. I), or preferably inclined with respect to this direction of movement XX (FIGS. 2 and 3).
  • the median lines M are inclined with respect to the direction of movement XX of the band of product 1, the value of this inclination a being less than or equal to 45.
  • contour L are then advantageously parallel to the median lines M, the said contour L having the shape of a parallelogramme.
  • all the groups 6 can have median lines M parallel between themselves from one group to the other (FIG. 2).
  • the groups 6 can be distributed in series, the groups of a same series having median lines M parallel, two successive series of groups 6 having median lines M inclined in symmetrical manner with respect to the direction of movement XX of the band of product 1 (FIG. 3).
  • the periodicity with which an identical arrangement recurs, of the median lines M in the contour L is four.
  • inlet aperture 7 it should be specified that they are preferably arranged, inside the contour L, so as to be aligned, in the transverse direction along parallels to the large sides of the contour L,
  • the extraction passages 8 may be constituted by recovery chimneys aligned along a direction perpendicular to the direction of movement XX of the band of product 1 (FIG. 2), or by slots perpendicular to the direction of movement XX of the band of product 1 (FIG. 1 and 3).
  • the outlet passages 8 are constituted by recovery chimneys
  • outlet passages 8 are constituted by slots, it is advantageous to give the said slots a length greater than the dimension of the large side of the contour L (FIG. 3).
  • blower apertures 5 distributed, for a group 6, along a contour L and median lines M they may be constituted by circular holes of 3 to 5 mm diameter spaced regularly along a pitch of 5 to 10 mm.
  • blower apertures 5 could be constituted by elongated holes in the direction of the contour L or in the direction of the median lines M.
  • the inlet apertures 7 can be also constituted by circular holes of 5 to 15 mm diameters spaced regularly.
  • inlet apertures 7 could also be constituted by elongated holes extending perpendicularly to the direction of movement XX of the band of product 1.
  • the section of each inlet aperture 7 is two to three times greater than the section of each blower aperture the small side of the contour L is equal to 62 percent of the value of the pitch P along which are distributed the groups 6 of blower apertures 5,
  • outlet passages 8 are constituted by slots, it may be indicated by way of example that,
  • the section of each inlet aperture 7 is two to three times greater than the section of each blower aperture the small side of the contour L is equal to 77 percent of the value or the pitch P along which are distributed the groups 6 of blower apertures 5,
  • the gas tends to escape towards the extraction passages 8 which are closest and it encounters on its path the whole of the jets of gas delivered by the blower apertures 5 distributed along the large sides of the contours L of the groups 6.
  • the average pressure which exists in the space situated between the band of product 1 and the zones of the blower walls 4 which are comprised between the group 6 will also tend to increase if the abovesaid band approaches the blower wall considered under the action of an external force (for example under the action of the weight of the damaged product).
  • band of product 1 occurs therefore subject to static pressures on both sides of its two surfaces, and the vectorial sum of these static pressures is opposed to any movement of approach to one another of the opposite blower walls 4.
  • the position of the band of product 1 is hence automatically ensured in the treatment zone 2, as well in the case envisaged'by way of example, where this band is moved horizontally, as in the case where this band is moved vertically.
  • the jets of gas delivered by the blower apertures 5 distributed along the small sides of the contour L enable the delivery of a preferential escape of the gas in the transverse direction, which transverse escape would have a tendency to reduce the effect of the jets of gas delivered by the blower apertures 5 distributed over the large sides of the contour L.
  • I claim 1 In an installation for the treatment, in a gaseous medium, of a band of product moving in a treatment zone situated between blower caissons supplied with treatment gas, the caissons having, on each side of the treatment zone, blower walls comprising groups of inlet and blower apertures for connection to a gas supply means and groups of outlet passages for exhausting gaseous medium from the treatment zone, these groups being arranged alternately with respect to the direction of movement of the band, the improvements comprising means in each group of apertures for forming a closed gaesous wall extending in a closed contour of ertures to impose a degree of confinement on the gaseous medium inside the contour, said means including a plurality of closely spaced, relatively small blower apertures arranged along a contour or rectangular shape, of which the larger side is perpendicular to the direction of movement of the band and is at least equal to the width of this band, said inlet apertures being relatively large and arranged inside said contour, the section of each inlet aperture being at least twice as great as the

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Drying Of Solid Materials (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
  • Advancing Webs (AREA)
  • Physical Or Chemical Processes And Apparatus (AREA)
  • Heat Treatment Of Strip Materials And Filament Materials (AREA)
US00165494A 1970-08-10 1971-07-23 Installations for the treatment, in gaseous medium, of a strip product Expired - Lifetime US3777408A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7029454A FR2102580A5 (enExample) 1970-08-10 1970-08-10

Publications (1)

Publication Number Publication Date
US3777408A true US3777408A (en) 1973-12-11

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Family Applications (1)

Application Number Title Priority Date Filing Date
US00165494A Expired - Lifetime US3777408A (en) 1970-08-10 1971-07-23 Installations for the treatment, in gaseous medium, of a strip product

Country Status (10)

Country Link
US (1) US3777408A (enExample)
JP (1) JPS5210220B1 (enExample)
CA (1) CA942941A (enExample)
DE (1) DE2131434B2 (enExample)
ES (1) ES394611A1 (enExample)
FR (1) FR2102580A5 (enExample)
GB (1) GB1321324A (enExample)
IT (1) IT940225B (enExample)
SE (1) SE397724B (enExample)
SU (1) SU459900A3 (enExample)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4286393A (en) * 1978-05-05 1981-09-01 Bergwerksverband Gmbh Bottom for fluidized bed
US5201132A (en) * 1991-04-26 1993-04-13 Busch Co. Strip cooling, heating or drying apparatus and associated method
US5611151A (en) * 1994-06-10 1997-03-18 Busch Co. Strip cooling, heating, wiping or drying apparatus and associated method
US20070125876A1 (en) * 2005-07-28 2007-06-07 Ralf Bolling Nozzle system for the treatment of web-shaped material

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE7514476U (de) * 1975-05-06 1976-02-26 Ab Svenska Flaektfabriken, Nacka (Schweden) Transportoer fuer plattenfoermiges material
JPS5994152U (ja) * 1982-12-15 1984-06-26 スズキ株式会社 気化器のスロツトルバルブ
CN111947428B (zh) * 2020-08-13 2022-12-06 东北大学 一种金属板带材热处理烘干装置

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2848820A (en) * 1952-10-08 1958-08-26 Svenska Flaektfabriken Ab Method and apparatus for supporting and conveying web-like material
US3012335A (en) * 1957-11-16 1961-12-12 Svenska Flaektfabriken Ab Treating web-like material by a gaseous medium
US3048383A (en) * 1958-09-18 1962-08-07 Swindell Dressler Corp Furnace or like system for gas-supporting and treating flat work
US3199224A (en) * 1962-04-03 1965-08-10 Wolverine Equipment Co Apparatus for treating continuous length webs comprising high velocity gas jets
US3638330A (en) * 1970-05-08 1972-02-01 Web Press Eng Inc Web support nozzles for drier

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2848820A (en) * 1952-10-08 1958-08-26 Svenska Flaektfabriken Ab Method and apparatus for supporting and conveying web-like material
US3012335A (en) * 1957-11-16 1961-12-12 Svenska Flaektfabriken Ab Treating web-like material by a gaseous medium
US3048383A (en) * 1958-09-18 1962-08-07 Swindell Dressler Corp Furnace or like system for gas-supporting and treating flat work
US3199224A (en) * 1962-04-03 1965-08-10 Wolverine Equipment Co Apparatus for treating continuous length webs comprising high velocity gas jets
US3638330A (en) * 1970-05-08 1972-02-01 Web Press Eng Inc Web support nozzles for drier

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4286393A (en) * 1978-05-05 1981-09-01 Bergwerksverband Gmbh Bottom for fluidized bed
US5201132A (en) * 1991-04-26 1993-04-13 Busch Co. Strip cooling, heating or drying apparatus and associated method
US5611151A (en) * 1994-06-10 1997-03-18 Busch Co. Strip cooling, heating, wiping or drying apparatus and associated method
US20070125876A1 (en) * 2005-07-28 2007-06-07 Ralf Bolling Nozzle system for the treatment of web-shaped material

Also Published As

Publication number Publication date
ES394611A1 (es) 1974-02-16
DE2131434A1 (de) 1972-02-17
IT940225B (it) 1973-02-10
CA942941A (en) 1974-03-05
SE397724B (sv) 1977-11-14
FR2102580A5 (enExample) 1972-04-07
GB1321324A (en) 1973-06-27
SU459900A3 (ru) 1975-02-05
JPS5210220B1 (enExample) 1977-03-22
DE2131434B2 (de) 1973-10-04

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