US2896335A - Drying of fabrics, papers, cardboards, and other lengthy materials - Google Patents

Drying of fabrics, papers, cardboards, and other lengthy materials Download PDF

Info

Publication number
US2896335A
US2896335A US599845A US59984556A US2896335A US 2896335 A US2896335 A US 2896335A US 599845 A US599845 A US 599845A US 59984556 A US59984556 A US 59984556A US 2896335 A US2896335 A US 2896335A
Authority
US
United States
Prior art keywords
elements
fluid
path
drying
radiant
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 - Lifetime
Application number
US599845A
Inventor
Dungler Julien
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.)
Individual
Original Assignee
Individual
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
Publication date
Application filed by Individual filed Critical Individual
Application granted granted Critical
Publication of US2896335A publication Critical patent/US2896335A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

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
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
    • D21F5/00—Dryer section of machines for making continuous webs of paper
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B3/00—Drying solid materials or objects by processes involving the application of heat
    • F26B3/28—Drying solid materials or objects by processes involving the application of heat by radiation, e.g. from the sun
    • F26B3/283—Drying solid materials or objects by processes involving the application of heat by radiation, e.g. from the sun in combination with convection

Definitions

  • the invention relates to machines for drying fabrics, papers, cardboards and other lengtliy'materials, and more particularly to machines ofthe type in which the ma terial to be treated is simultaneously subjected to the action of a circulating gas or gaseous fluid and to .the radiations emitted by radiant elements arranged on either side of the material being treated and extending in a direction parallel with the latter.
  • the circulating gas and the radiant elements are brought up to temperature by a single source of heat, "namely a heat exchanger directly insuring the heating of the gas which, in its turn, travels throughthe radiant elements arranged along its path of travel, which has as aneifect the bringing of the latter to their rated temperature. :1 n g
  • the machine which is the object of the present invention is essentially characterized in that it is the radiant elements which are directly brought up to their rated temperature by a source of heat provided for this purpose, whereas the circulating gasis indirectly heated'fby its contact with said direct heating elements.
  • Fig. l is a diagrammatical vertical section of a machine according to the invention.
  • Fig. 2 shows, in vertical section and on a larger scale, one embodiment of the radiant elements
  • Fig. 3 is a plan view corresponding to Fig. 2,
  • Fig. 4 shows a modification also in plan view
  • Fig. 5 is a view similar to that of Fig. 2 and shows a further modification
  • Fig. 6 is a plan View corresponding to Fig. 5, and
  • Fig. 7 shows, also in a view similar to that of Fig. 2, still a further modification.
  • the machine represented in Fig. 1 comprises a heat insulated enclosure 1 in which are arranged, on either side of the treated product a, such as fabric or the like, two blowing boxes 2 supplied with blowing fluid, such as superheated steam or the like, by blowers 3.
  • the boxes 2 are fitted with individual blowing nozzles 4 separated from each other by discharge channels 5.
  • Radiant elements 6 are arranged within the discharge channels 5 in a direction parallel with the treated fabric a and, preferably, at a short distance from the latter.
  • the fabric enters the enclosure 1 as at 8 and runs out of the latter as at 9 and is directed to a further treating machine 10 supplied, for instance, with treating fluid derived from the excess fluid from the machine contained in the enclosure 1.
  • the fabric -leaves the machine 10 as as 11.
  • the radiant element 6 and a blowing fluid set in circulation by the blower 3 are brought up to their rate temperature by the same source of heat, namely that serving for heating the radiant elements.
  • Figs. 2 and 3 show a first embodiment of the radiant elements 6 adapted to yield the result sought for.
  • the radiant elements 6 are in the form of hollow bodies through which is circulated a heating gas or fluid, such as steam, burnt gases or the like, supplied through the pipe 12.
  • a heating gas or fluid such as steam, burnt gases or the like
  • this heating fluid has a temperature such that it brings the radiant elements up to a temperature ensuring the emission of heat radiations, i.e. to a temperature of at least 250 C., and, preferably, to a temperature of 400 C and even more.
  • the radiant elements 6 are traversed by channels for the passage of the circulating blowing fluid. These channels may assume any desired shape, for instance the shapeof tubes 13 (Figs. 2 and 3) or of elongated passages 14 (Fig. 4).
  • the treating fluid delivered by the nozzles 4 is discharged, subsequent to its action upon the fabric, through the discharge channels 5.
  • This arrangement has 'the advantage of providing a very eflicient heating of the circulating fluid, owing to the heating surfaces constituted by the walls of the passages 13 01- 14. Furthermore, ulcerhe case of heating by means of burnt gases, the treating" fluid does not engage the latter and remains therefore free from impurities.
  • the path of travel of the treated product a is arranged vertically, which makes it possible to feed the latter through the machine in the direction of gravitational force and without having to resort to supporting or transporting members. In fact, such members would be brought up to a very high and dangerous temperature unless provision were made for cooling means.
  • the radiant elements are constituted by mere plates 15 with perforations 16 of any suitable shape. These radiant plates 15 are brought up to their rate temperature by pipes 17 welded to the plates 15 and in which a suitable heated fluid is circulated.
  • the operation of this embodiment is substantially the same as that of the embodiments of Figs. 2 to 4, with the exception that, here, the circulation blowing fluid is heated not only by passing through the plates 15, but also by its direct contact with the pipes 17.
  • Pipes 17 may include electrical heating or resistor ele-' ments 17a in the alternative.
  • the radiant elements are located practically in coplanar relation with the mouths of the nozzles 4, that is to say at a very short distance from the treated material.
  • the circulating fluid therefore, follows a certain path along the treated material between the exit from the nozzles 4 and the inlets of the passages 13, 14, 16.
  • Fig. 7 where the radiant elements 18 with passages 19 for the blowing fluid are arranged in receded relation with respect to thedischarge channels 5.
  • the circulating fluid delivered by the nozzles is immediately directed away from the treated material after having come into contact with the latter.
  • the, discharge of the blowing fluid through the discharge channels 5, subsequent to its action upon the treated material may be effected either transversely of the latter, as represented, or perpendicularly to the surface thereof.
  • the heating of the radiant elements may be ensuredby any suitable means, for instance by electric resistors such as elements 17a in Fig. 5.
  • the machine may be utilized for any thermal treatment.
  • the radiant elements may be constituted by grates or mesh works, and they heating pipes 17 may assume a square or other cross-section, adapted to increase the area of contact with the radiant elements proper.
  • the radiant elements may beprovided with fins or others positioned in the stream of treating fluid and adapted to increase the area of thermal exchanges with the latter.
  • Drying apparatus comprising an enclosure for accommodating material to be dried, the material having a determinable path of travel in the enclosure, radiating elements adapted for being heated and operatively disposed along opposite sides of said path, the radiating elements constituting the sole effective source of heat in the enclosure, means for circulating a drying medium within the enclosure, a plurality of boxes operatively associated with said means to receive the drying medium, said boxes being disposed on opposite sides of the path and arranged to confine the path and to enclose the radiating elements, said boxes each including a plurality of nozzles interposed between said radiating elements and supporting the same along said path, said boxes further including sections between the nozzles defining with the radiating elements enclosed discharge chambers adapted for the discharge of said medium and extending transversely of said path, said radiating elements defining openings coupling said path and discharge chambers for the removal of the medium brought to said path by the nozzles.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Microbiology (AREA)
  • Textile Engineering (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Drying Of Solid Materials (AREA)

Description

NGLER 2,896,335
J. DU DRYING OF FABRICS. PAPERS, CARDBOARDS, AND OTHER LENGTHY MATERIALS Filed July 24. l9 56 July 28, 1959 //u/ //1 l I DRYING F FABRICS, PAPERS, CARDBOARDS,
OTHER LENGTHY MATERIALS 'Julien Dungler, Basel, Switzerland Application July 24,1956, Serial No: 599,845
Claims priority, application France July 28, 1955 7 Claims. or. 34-68) The invention relates to machines for drying fabrics, papers, cardboards and other lengtliy'materials, and more particularly to machines ofthe type in which the ma terial to be treated is simultaneously subjected to the action of a circulating gas or gaseous fluid and to .the radiations emitted by radiant elements arranged on either side of the material being treated and extending in a direction parallel with the latter.
In known machines, the circulating gas and the radiant elements are brought up to temperature by a single source of heat, "namely a heat exchanger directly insuring the heating of the gas which, in its turn, travels throughthe radiant elements arranged along its path of travel, which has as aneifect the bringing of the latter to their rated temperature. :1 n g The machine which is the object of the present invention is essentially characterized in that it is the radiant elements which are directly brought up to their rated temperature by a source of heat provided for this purpose, whereas the circulating gasis indirectly heated'fby its contact with said direct heating elements.
Further objects and advantages of the invention will be apparent to those skilled in the art, from a consideration of the following description of some specific embodiments of the invention, shown by way of examples, in the accompanying drawings, in which:
Fig. l is a diagrammatical vertical section of a machine according to the invention,
Fig. 2 shows, in vertical section and on a larger scale, one embodiment of the radiant elements,
Fig. 3 is a plan view corresponding to Fig. 2,
Fig. 4 shows a modification also in plan view,
Fig. 5 is a view similar to that of Fig. 2 and shows a further modification,
Fig. 6 is a plan View corresponding to Fig. 5, and
Fig. 7 shows, also in a view similar to that of Fig. 2, still a further modification.
The machine represented in Fig. 1 comprises a heat insulated enclosure 1 in which are arranged, on either side of the treated product a, such as fabric or the like, two blowing boxes 2 supplied with blowing fluid, such as superheated steam or the like, by blowers 3. The boxes 2 are fitted with individual blowing nozzles 4 separated from each other by discharge channels 5.
Radiant elements 6 are arranged within the discharge channels 5 in a direction parallel with the treated fabric a and, preferably, at a short distance from the latter.
The fabric enters the enclosure 1 as at 8 and runs out of the latter as at 9 and is directed to a further treating machine 10 supplied, for instance, with treating fluid derived from the excess fluid from the machine contained in the enclosure 1. The fabric-leaves the machine 10 as as 11.
As already hereinabove explained, the radiant element 6 and a blowing fluid set in circulation by the blower 3 are brought up to their rate temperature by the same source of heat, namely that serving for heating the radiant elements.
'ice
Figs. 2 and 3 show a first embodiment of the radiant elements 6 adapted to yield the result sought for. For this purpose, the radiant elements 6 are in the form of hollow bodies through which is circulated a heating gas or fluid, such as steam, burnt gases or the like, supplied through the pipe 12. Of course, this heating fluid has a temperature such that it brings the radiant elements up to a temperature ensuring the emission of heat radiations, i.e. to a temperature of at least 250 C., and, preferably, to a temperature of 400 C and even more.
The radiant elements 6 are traversed by channels for the passage of the circulating blowing fluid. These channels may assume any desired shape, for instance the shapeof tubes 13 (Figs. 2 and 3) or of elongated passages 14 (Fig. 4).
While circulating through the machine, the treating fluid delivered by the nozzles 4 is discharged, subsequent to its action upon the fabric, through the discharge channels 5.
In order to reach the latter, it has to flow through the passages 13 or 14 provided through the radiant elements 6 which are brought up to a high temperature by the heating fluid supplied through the pipe 112. While flowing through the radiant elements 6 in the passages 13 or 14, the circulating fluid, therefore, in its. turn is brought 1 up to its rated temperature, the upper and lower faces widely extended contact area between the latter and the of the radiant element s also bringing their contribution to this heating effect.
This arrangement has 'the advantage of providing a very eflicient heating of the circulating fluid, owing to the heating surfaces constituted by the walls of the passages 13 01- 14. Furthermore, irithe case of heating by means of burnt gases, the treating" fluid does not engage the latter and remains therefore free from impurities.
It should be further noted that the path of travel of the treated product a is arranged vertically, which makes it possible to feed the latter through the machine in the direction of gravitational force and without having to resort to supporting or transporting members. In fact, such members would be brought up to a very high and dangerous temperature unless provision were made for cooling means.
In the embodiments of Figs. 5 and 6, the radiant elements are constituted by mere plates 15 with perforations 16 of any suitable shape. These radiant plates 15 are brought up to their rate temperature by pipes 17 welded to the plates 15 and in which a suitable heated fluid is circulated. The operation of this embodiment is substantially the same as that of the embodiments of Figs. 2 to 4, with the exception that, here, the circulation blowing fluid is heated not only by passing through the plates 15, but also by its direct contact with the pipes 17. Pipes 17 may include electrical heating or resistor ele-' ments 17a in the alternative.
In the embodiments of Figs. 2 to 6, the radiant elements are located practically in coplanar relation with the mouths of the nozzles 4, that is to say at a very short distance from the treated material.
The circulating fluid, therefore, follows a certain path along the treated material between the exit from the nozzles 4 and the inlets of the passages 13, 14, 16.
When very high temperatures are used, it may be desirable to position the radiant elements at some distance away from the fabric. Such a disposition is represented in Fig. 7 where the radiant elements 18 with passages 19 for the blowing fluid are arranged in receded relation with respect to thedischarge channels 5. In this case, the circulating fluid delivered by the nozzles is immediately directed away from the treated material after having come into contact with the latter.
Of course, the embodiments hereinabove described and represented in the drawing are given by way of mere examples and the shape, the nature, the disposition and the mounting of their elements may be modified in any suitable manner without the scope of the invention being thereby departed from.
' Thus, the, discharge of the blowing fluid through the discharge channels 5, subsequent to its action upon the treated material, may be effected either transversely of the latter, as represented, or perpendicularly to the surface thereof. The heating of the radiant elements may be ensuredby any suitable means, for instance by electric resistors such as elements 17a in Fig. 5. The machine may be utilized for any thermal treatment. In the embodiment of Figs. 5 and 6, the radiant elements may be constituted by grates or mesh works, and they heating pipes 17 may assume a square or other cross-section, adapted to increase the area of contact with the radiant elements proper. The radiant elements, may beprovided with fins or others positioned in the stream of treating fluid and adapted to increase the area of thermal exchanges with the latter.
What I claim is:
1. Drying apparatus comprising an enclosure for accommodating material to be dried, the material having a determinable path of travel in the enclosure, radiating elements adapted for being heated and operatively disposed along opposite sides of said path, the radiating elements constituting the sole effective source of heat in the enclosure, means for circulating a drying medium within the enclosure, a plurality of boxes operatively associated with said means to receive the drying medium, said boxes being disposed on opposite sides of the path and arranged to confine the path and to enclose the radiating elements, said boxes each including a plurality of nozzles interposed between said radiating elements and supporting the same along said path, said boxes further including sections between the nozzles defining with the radiating elements enclosed discharge chambers adapted for the discharge of said medium and extending transversely of said path, said radiating elements defining openings coupling said path and discharge chambers for the removal of the medium brought to said path by the nozzles. V
2. Apparatus as claimed in claim 1 wherein the radiating elements are hollow and comprising means coupled to the radiating elements for circulating a hot liquid therethrough.
3. Apparatus as claimed in claim 1 wherein the radiating elements are electrical resistors.
4. Apparatus as claimed in claim 2 wherein the nozzles are in perpendicularly intersecting relation with the path and the discharge channels are aligned transversely of the path.
5. Apparatus as claimed in claim 2 wherein the nozzles and radiating elements are equidistantly spaced from said path.
6. Apparatus as claimed in claim 2 wherein the nozzles and radiating elements are spaced at difierent distances from the path. t
7. Apparatus as claimed in claim 2 wherein the radiating elements include walls adjacent and parallel to said path.
References Cited in the file of this patent UNITED STATES PATENTS
US599845A 1955-07-28 1956-07-24 Drying of fabrics, papers, cardboards, and other lengthy materials Expired - Lifetime US2896335A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR2896335X 1955-07-28

Publications (1)

Publication Number Publication Date
US2896335A true US2896335A (en) 1959-07-28

Family

ID=9689726

Family Applications (1)

Application Number Title Priority Date Filing Date
US599845A Expired - Lifetime US2896335A (en) 1955-07-28 1956-07-24 Drying of fabrics, papers, cardboards, and other lengthy materials

Country Status (1)

Country Link
US (1) US2896335A (en)

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3068586A (en) * 1959-02-18 1962-12-18 Electric Furnace Co Forced cooling means and method for continuous strip furnaces
US3226840A (en) * 1962-03-26 1966-01-04 Samuel M Langston Co Double facer paperboard air lift method and apparatus
US3281957A (en) * 1963-04-22 1966-11-01 Production Machinery Corp Apparatus for processing strip material
DE1275563B (en) * 1960-03-28 1968-08-22 Gen Electric Device for cooling or heating a metal strip
US3403454A (en) * 1967-04-05 1968-10-01 White Consolidated Ind Inc Heat treating apparatus for web and sheet material
US3403456A (en) * 1967-02-14 1968-10-01 White Consolidated Ind Inc Impingement type drying apparatus
US3448526A (en) * 1967-07-20 1969-06-10 Horace L Smith Jr Apparatus for and method of drying ink and other materials on a carrier
US3460265A (en) * 1967-02-14 1969-08-12 Horace L Smith Jr Methods of drying
US3680218A (en) * 1969-05-07 1972-08-01 Owens Corning Fiberglass Corp Drying chamber apparatus and method
US3772055A (en) * 1969-10-30 1973-11-13 Stork Amsterdam Method and device for strengthening a non-woven material
US3772054A (en) * 1970-07-07 1973-11-13 Stork Amsterdam Method for stiffening a web-shaped fleece of fibrous material
US3894410A (en) * 1972-03-28 1975-07-15 Vepa Ag Device for the fixation of dyestuff on lengths of material by steam
US3906596A (en) * 1972-02-10 1975-09-23 Vepa Ag Combined sieve drum and tentering apparatus
US4060914A (en) * 1976-08-18 1977-12-06 Proctor & Schwartz, Inc. Apparatus for treating material with a gaseous medium
US4727655A (en) * 1987-02-02 1988-03-01 Amjo Infra Red Dryers, Inc. Heat lamp assembly with air duct
US20040255850A1 (en) * 2001-08-31 2004-12-23 Ryuichi Hosokawa Coating technique

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US413728A (en) * 1889-10-29 Machine for drying paper
US1479819A (en) * 1922-02-02 1924-01-08 Anne J Kluever Heater
US2144919A (en) * 1937-06-24 1939-01-24 Andrews And Goodrich Inc Apparatus for and method of drying web material
CH229202A (en) * 1942-07-17 1943-10-15 Mailaender Willy Process for drying printed surfaces, in particular in multicolor rotogravure printing machines and multicolor rotogravure printing machines.
US2389586A (en) * 1944-11-17 1945-11-27 Bernard R Andrews Drying apparatus
US2402237A (en) * 1944-06-06 1946-06-18 Container Corp Combination preheater and steam shower for corrugating and like machines
US2473629A (en) * 1944-11-16 1949-06-21 Bernard R Andrews Drying apparatus
US2682116A (en) * 1950-01-21 1954-06-29 Dungler Julien Method and apparatus for treating fibrous sheet material by superheated steam or vapors

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US413728A (en) * 1889-10-29 Machine for drying paper
US1479819A (en) * 1922-02-02 1924-01-08 Anne J Kluever Heater
US2144919A (en) * 1937-06-24 1939-01-24 Andrews And Goodrich Inc Apparatus for and method of drying web material
CH229202A (en) * 1942-07-17 1943-10-15 Mailaender Willy Process for drying printed surfaces, in particular in multicolor rotogravure printing machines and multicolor rotogravure printing machines.
US2402237A (en) * 1944-06-06 1946-06-18 Container Corp Combination preheater and steam shower for corrugating and like machines
US2473629A (en) * 1944-11-16 1949-06-21 Bernard R Andrews Drying apparatus
US2389586A (en) * 1944-11-17 1945-11-27 Bernard R Andrews Drying apparatus
US2682116A (en) * 1950-01-21 1954-06-29 Dungler Julien Method and apparatus for treating fibrous sheet material by superheated steam or vapors

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3068586A (en) * 1959-02-18 1962-12-18 Electric Furnace Co Forced cooling means and method for continuous strip furnaces
DE1275563B (en) * 1960-03-28 1968-08-22 Gen Electric Device for cooling or heating a metal strip
US3226840A (en) * 1962-03-26 1966-01-04 Samuel M Langston Co Double facer paperboard air lift method and apparatus
US3281957A (en) * 1963-04-22 1966-11-01 Production Machinery Corp Apparatus for processing strip material
US3403456A (en) * 1967-02-14 1968-10-01 White Consolidated Ind Inc Impingement type drying apparatus
US3460265A (en) * 1967-02-14 1969-08-12 Horace L Smith Jr Methods of drying
US3403454A (en) * 1967-04-05 1968-10-01 White Consolidated Ind Inc Heat treating apparatus for web and sheet material
US3448526A (en) * 1967-07-20 1969-06-10 Horace L Smith Jr Apparatus for and method of drying ink and other materials on a carrier
US3680218A (en) * 1969-05-07 1972-08-01 Owens Corning Fiberglass Corp Drying chamber apparatus and method
US3772055A (en) * 1969-10-30 1973-11-13 Stork Amsterdam Method and device for strengthening a non-woven material
US3772054A (en) * 1970-07-07 1973-11-13 Stork Amsterdam Method for stiffening a web-shaped fleece of fibrous material
US3906596A (en) * 1972-02-10 1975-09-23 Vepa Ag Combined sieve drum and tentering apparatus
US3894410A (en) * 1972-03-28 1975-07-15 Vepa Ag Device for the fixation of dyestuff on lengths of material by steam
US4060914A (en) * 1976-08-18 1977-12-06 Proctor & Schwartz, Inc. Apparatus for treating material with a gaseous medium
US4727655A (en) * 1987-02-02 1988-03-01 Amjo Infra Red Dryers, Inc. Heat lamp assembly with air duct
US20040255850A1 (en) * 2001-08-31 2004-12-23 Ryuichi Hosokawa Coating technique
US7384482B2 (en) * 2001-08-31 2008-06-10 Honda Of Canada Manufacturing, A Division Of Honda Canada Inc. Coating technique

Similar Documents

Publication Publication Date Title
US2896335A (en) Drying of fabrics, papers, cardboards, and other lengthy materials
US3012335A (en) Treating web-like material by a gaseous medium
US3474544A (en) Veneer dryer with plural treating zones
JP2005503279A (en) Equipment for drying plaster plasterboard
US4168580A (en) Drying installation for treating webs of material
US1980558A (en) Drying of fabrics
US3302297A (en) Drying apparatus and method
US3739490A (en) Orifice pattern for jet dryers
US2894334A (en) Tenter dryers
US4295284A (en) Dryer range
US2706343A (en) Method and arrangement for drying grain and the like in drying silos provided with direct heat supply
US3235973A (en) Heat treating apparatus for sheet or web like material
RU2291844C2 (en) Device for blowing one side of thin element with fluid medium and blowing plant
KR850007875A (en) Hot air circulation method and apparatus in flat plate dryer
US1472741A (en) Drier
US1528696A (en) Apparatus for drying and conditioning grain and similar granular substances
US3001298A (en) Dryer with burner
US3568331A (en) Suction drying apparatus
US1436037A (en) Hosiery-finishing machine
US3460266A (en) Process and apparatus for the heat-treatment of materials
KR950009275Y1 (en) Hot wind circulation equipment for agricultural dryer
US2720152A (en) Air distributing wall
GB358493A (en) Improvements in or relating to machines for drying tea and the like
GB991965A (en) A method for conditioning web-or sheet-like material
SU844034A1 (en) Gas distributing apparatus