EP0167899A2 - Dispositif de séchage, notamment pour le bois de charpente - Google Patents

Dispositif de séchage, notamment pour le bois de charpente Download PDF

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Publication number
EP0167899A2
EP0167899A2 EP85107623A EP85107623A EP0167899A2 EP 0167899 A2 EP0167899 A2 EP 0167899A2 EP 85107623 A EP85107623 A EP 85107623A EP 85107623 A EP85107623 A EP 85107623A EP 0167899 A2 EP0167899 A2 EP 0167899A2
Authority
EP
European Patent Office
Prior art keywords
drying
connecting channels
channels
drying device
chambers
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.)
Granted
Application number
EP85107623A
Other languages
German (de)
English (en)
Other versions
EP0167899A3 (en
EP0167899B1 (fr
Inventor
Reinhard Brunner
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.)
Hildebrand Holztechnik GmbH
Original Assignee
Hildebrand Holztechnik 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
Publication date
Priority claimed from DE19843425642 external-priority patent/DE3425642C1/de
Application filed by Hildebrand Holztechnik GmbH filed Critical Hildebrand Holztechnik GmbH
Priority to AT85107623T priority Critical patent/ATE42392T1/de
Publication of EP0167899A2 publication Critical patent/EP0167899A2/fr
Publication of EP0167899A3 publication Critical patent/EP0167899A3/de
Application granted granted Critical
Publication of EP0167899B1 publication Critical patent/EP0167899B1/fr
Expired legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B21/00—Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B21/00—Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects
    • F26B21/02—Circulating air or gases in closed cycles, e.g. wholly within the drying enclosure
    • F26B21/04—Circulating air or gases in closed cycles, e.g. wholly within the drying enclosure partly outside the drying enclosure
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B9/00—Machines or apparatus for drying solid materials or objects at rest or with only local agitation; Domestic airing cupboards
    • F26B9/06—Machines or apparatus for drying solid materials or objects at rest or with only local agitation; Domestic airing cupboards in stationary drums or chambers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B2210/00—Drying processes and machines for solid objects characterised by the specific requirements of the drying good
    • F26B2210/16—Wood, e.g. lumber, timber

Definitions

  • the invention relates to a drying device according to the preamble of claim 1.
  • the present invention has for its object to guide desiccants for the purpose of saving energy in an advantageous manner where it is needed.
  • This object is achieved according to the invention by the features in the characterizing part of claim 1.
  • Desiccant can be passed directly from one of the rock chambers to the other drying chamber.
  • a fan can be used to circulate the desiccant from one of the drying chambers to the other drying chamber, which is used anyway for circulating desiccant within its own drying chamber.
  • the heating register in one of the drying chambers can be used to heat the desiccant to be conveyed into the other drying chamber. With this drying chamber, the heating register can be disconnected from the heating circuit or supplied with less heat.
  • the connecting channels require a relatively small amount of space and can be retrofitted inexpensively in existing drying chambers.
  • the connecting channels according to claim 2 lie outside of the horizontal planes intersecting the fans and can therefore be designed in a simple manner to be relatively wide and of low height.
  • the resulting size of the separating surface between the connecting duct and the drying chamber increases the efficiency of a heat exchange without moisture being transported between the connecting duct and a drying chamber which is currently not involved in the direct drying agent exchange.
  • This has the advantage of noticeably dehumidifying the desiccant in the drying chamber by condensation on channel walls, the cool desiccant passed through the channel, e.g. Fresh air, which absorbs the heat of condensation.
  • the area common to the drying chamber and the connecting channels is relatively large. There are only minor structural differences between longitudinal and cross-loaded drying chambers.
  • the features of claim 3 enable a simple and uniform design of the connecting channels for cross-loaded and longitudinally charged drying chambers without the drying agent circulation being impeded, since the connecting channels are completely outside the drying agent flow required for this.
  • the ceiling of the drying chamber also forms the upper wall of the connecting channels, the side walls of which are partly formed by the side walls of the drying chamber.
  • several fans can be arranged side by side. In the open state, the flaps are pressed against a mechanical end stop by the back pressure of the fans.
  • a locking which is necessary per se, or an expensive increase in the holding torque of the servomotors for the flaps in the suction operation of the associated fan, is unnecessary in the case of flaps which hang down from above and remain open due to their own weight.
  • the features of claim 4 offer the important advantage of a particularly large heat exchanger area between the two channels. Since only one of the two channels is in direct thermal contact with the desiccant in the drying chamber, there is the possibility of either heating the air of a chamber temporarily uninvolved in the desiccant exchange through the lower duct, dehumidifying it by condensation on the underside of the lower duct or also leaving it largely unaffected.
  • a design according to the features of claim 6 has the advantage of a higher flow rate of the desiccant in the connecting channel, which results in a higher dehumidification performance through condensation, a faster desiccant exchange and better mixing of the desiccant in the drying chamber.
  • the width of the flaps can be designed so that two or more fans are assigned to a flap.
  • the efficiency of the heat exchange between the connecting channels can be increased with a suitable arrangement and design of the channel partition. If of the total area of both ducts closest to the fans is narrower than the other duct, an air nozzle can be dispensed with and yet only one of the connecting ducts is in substantial thermal contact with the drying agent of the drying chamber.
  • flaps with controllable opening angle for connecting one or both connecting channels to the outside air Due to the arrangement of flaps with controllable opening angle for connecting one or both connecting channels to the outside air, the usual air flaps in the outer walls of the drying chambers can be omitted.
  • the control devices for the flaps are simplified.
  • desiccant is exchanged between the individual chambers via the connecting channels, fresh air can be added and part of the desiccant from at least one of the chambers can be discharged outdoors.
  • the usual exchange of desiccant between each chamber and the outside air is also possible.
  • the features of claim 11 additionally enable an extended optimization of the usual target values for the climate within the chambers in the Course of drying from aspects such as total energy requirement, temporal dependence of the available heating power, heating and electricity costs, drying time (associated with this: degree of utilization of the chamber and amortization), drying quality and others.
  • energy can be recovered from the desiccant to be removed by heat exchange.
  • air humidity is condensed, part of the evaporation energy is recovered.
  • the liquid condensate is led outside.
  • the supply air for a chamber which consists of any mixture of fresh air and exhaust air from other chambers, can be heated, if necessary, before it reaches the chamber within the connecting channels.
  • the heat exchanger can also be assigned to a heat pump.
  • the heating power of the additional register can be suitably metered in simple follow-up control.
  • Three identical drying chambers A, B and C are arranged directly next to each other. Between the drying chambers A and R there is a partition 1 common to both chambers and between the drying chambers B and C a partition 1a shared by both drying chambers.
  • the side walls of the drying chambers A, B and C are designated by 2, 3 and 2a, 3a and 2b, 3b and the two end walls of the drying device by 20 and 20a.
  • the three drying chambers A, B and C are connected to one another by means of two connecting channels 4, 5, each with a rectangular cross section, which have a common intermediate wall 6 and which are arranged on the top by ceilings 7 of the drying chambers A, B, C and within the drying chambers orderly false ceilings 8, 8a and 8b are limited, so that no special channel walls are needed for this.
  • the outer walls of the two connecting channels 4, 5 preferably form a square when viewed in cross section.
  • the intermediate ceilings 8, 8a and 8b are narrower than the respective chambers in order to enable desiccant circulation in each of the chambers.
  • the intermediate wall 6 can consist of a good heat-conducting material and can be provided with heat-transferring ribs.
  • Chamber A is assigned two heating registers 9, 10 and four fans 11 to 14, each reversible in their direction of rotation and arranged in one plane.
  • the two respective inner fans 12, 13 are located directly next to the assigned connecting duct 4 and 5.
  • the chambers ⁇ and C are configured identically. The same parts are given the reference numerals a and b.
  • the arrows assigned to the fans 12, 12b, 13, 13b each show their current conveying direction.
  • the connecting channels 4 have rectangular flaps 15, 15a and 15b on the side of the fans 12, 12a and 12b assigned to them.
  • the flaps have a width that corresponds approximately to the simple, but at least 0.5 times the diameter of the assigned fan.
  • the flaps are either open as the flaps 15 and 15b, so that pressure medium is conveyed from the associated fan 12 from the chamber A into the connecting duct 4 and desiccant is conveyed from the connecting duct 4 into the drying chamber C by means of the associated fan 12b or closed like the flap 15a.
  • the channel 5 also has the flaps 16, 16a and 16b assigned to the fans 13, 13a and 13b, of which the flaps 16 and 16b are open and the flap 16a is closed, so that pressure medium conveyed into the drying chamber C by means of the fan 13b in the connecting duct 5 is conveyed and is conveyed from the duct into the drying chamber A by means of the fan 13.
  • the flaps 15, 15a and 15b and 16, 16a and 16b With the specified position of the flaps 15, 15a and 15b and 16, 16a and 16b, one of the fans 12, 12a, 12b and 13, 13a, 13b can be sufficient to promote the desiccant between the chambers A and C.
  • flaps 17 and 17b can be provided in the intermediate wall 6 for connecting the connecting channels 4 and 5.
  • the connecting duct 5 can be closed on the end wall 20 by a flap 18 or connected to the outside air and the connecting duct 4 on the end wall 20a side by means of a flap 18b.
  • a heating register 19 is provided in the connection channel 4 in the area of the Heinz register 9a and a heating register 19a in the connection channel 5. If the induction ducts 4, 5 become supply air and drainage ducts, the heating registers 19, 19a can be dimensioned relatively short in the event of condensation of air humidity on the intermediate wall 6.
  • the two heating registers 19, 19a are preferably located in one plane and in one plane with one of the heating registers 9a, 9b or one of the partitions 1, la.
  • the flaps 17, 17b are directly adjacent to the heating register 19, 19a, with the pivot axes of the flaps 17th , 17b are each facing away from the heating registers 19, 19a.
  • One of the heating registers 19, 19a can also be a heat exchanger for a heat pump.
  • the partition 6 can be flat or structured, e.g. wavy, ribbed or the like., Be formed.
  • the fans 11 to 14, 11a to 14a and 11b to 14b, the flaps 15, lSa, 15b, 16, 16a, 16b, 17, 17b and 18, 18b are the drying program for the drying program in the drying chambers A, B and C sawn timber to be dried, if necessary, controlled accordingly.
  • a flap 15, 15a or 15b and 16, 16a or 16b is assigned to each of the fans 12, 12a, 12b and 13, 13a or 13b assigned to the connecting channels 4, 5. It is also possible to assign each of these fans two flaps of essentially the same size, one on each side, the flaps assigned to one of the fans being separated from one another by its level. At least one of the flaps assigned to each fan is closed.
  • the drying device described above is advantageously controlled by means of a computer.
  • the decision as to whether one of the drying chambers A, B, C as the drying agent is supplied with the drying agent located in another drying chamber is made depending on the drying program.
  • the climate values of the outside air can be taken into account.
  • the exemplary embodiment described relates to a drying device with so-called longitudinally charged drying chambers.
  • the invention can also be applied to cross-loaded drying chambers in which fans of drying chambers arranged side by side lie in one plane and two are straight and in connection channels located in the immediate vicinity of fans would hinder or make impossible the circulation of drying agents within the drying chambers.
  • the connecting channels are passed between the fans in the same manner as the exemplary embodiment described.
  • transverse ducts which are guided at right angles thereto must be provided to connect the connecting ducts in the individual cross-loading drying chambers. so that the connecting ducts are arranged in a drying device with cross-loaded drying chambers, for example in the manner of the graphical representation of an electrical square wave of an alternating hopper.
  • the invention can also be applied to a drying device with a different number of drying chambers.
  • the two connecting channels 104, 105 are arranged above the fans 11a to 14a and each have a width that is more than half the width of the drying chambers.
  • the ceiling 7 of the drying chamber is at the same time a wall on the top of the channels 104 and 105 and the upper parts of the side walls are at the same time a wall of the connecting channels 104 and 105, respectively.
  • These are separated from one another by a vertical partition 6, which is parallel to the axes the fan 11a to 14a runs.
  • the flaps 115 and 116 articulated on the lower walls of the connecting channels 104, 105 can be opened downward and maintain this position in the open position because of their own weight.
  • An intermediate ceiling 8 is located below the fans 12a to 14a.
  • the flaps 115, 116 are assigned to the fans 12a and 13a, respectively. It is also possible to make a different assignment, e.g. to assign the flaps 115, 116 to the fans 11a and 14a, respectively.
  • the two connecting channels 104 and 105 can also be arranged at a distance from one another.
  • the two connecting channels 204 and 205 are arranged directly one above the other.
  • the upper channel 204 has a connecting piece 221 passing through the channel 205, to which the flap 115 articulated on the lower wall of the connecting channel 205 is assigned.
  • the flap 115 opens or closes its mouth located at the lower wall of the lower connecting channel 205 and the flap 116 an opening adapted to this in the lower wall of the connecting channel 205.
  • the ceiling 7 of the dryer is both the upper wall of the connecting channel 204 and the upper Parts of the side walls are also the same as side walls of the connecting channels 204, 205.
  • connection channels 304 and 305 are arranged below the fans 11a to 14a.
  • the false ceiling 8 also forms the lower wall of the two connecting channels 304 and 305, which are separated from one another by a vertical intermediate wall 6.
  • the flaps 115 and 116 are assigned to the fans 12a and 13a and are each articulated on the top of the assigned connecting duct.
  • the connecting channels can also be divided horizontally, the lower connecting channel having an upwardly extending connecting piece corresponding to the connecting piece 221 (FIGS. 6 and 7). If the connecting channels are subdivided horizontally, it is also possible to arrange a connecting channel directly below the ceiling 7.
  • connection channels 304 and 305 having flaps 115, 116 arranged at the top are arranged below the fans 11a to 14a and must be designed to be substantially narrower in the region of the partition walls between the individual drying chambers A, B, C or the outer walls of this chamber than in the intermediate region not to impair the circulation of the desiccant in the drying chamber too much.
  • the narrowing of the connecting channels 304 and 305 is about a third to a quarter of the width in the central region of the drying chambers. This applies independently on the type of arrangement of the partition between the connecting channels.
  • the exemplary embodiments described above are designed for the longitudinal loading of the drying chambers A, B, C parallel to the row of fans 11 to 14.
  • the second exemplary embodiment according to FIGS. 4 and 5 is suitable for transverse loading (transverse to the row of fans pivoted at a right angle relative to the fans according to FIG. 1 and arranged in one plane) if the intermediate wall 6, which also extends over all drying chambers A, B, C, connecting channels extending perpendicular to the axes of the fans is arranged.
  • FIGS. 11 to 13 The arrangement of the connecting channels 204 and 205 according to the third exemplary embodiment according to FIGS. 6 and 7 with a horizontal partition between the channels can also be provided in a transversely charged chamber, as shown in FIGS. 11 to 13.
  • the doors for loading the drying chambers Ac, Bc and Cc are, as in the other exemplary embodiments, on the side walls 3, 3a, 3b of the drying chambers.
  • FIGS. 4 and 13 each show a stack 21 of boards to be dried.
  • At least one of the connecting channels 204, 205 can also be arranged below the fans 11a to 14a. If both connecting channels are arranged below the fans 11a to 14a, the lower connecting channel needs an upwardly extending connecting piece.
  • the connecting channels 305 and 306 need not be designed to be narrowed and their total width can be equal to the width of the false ceiling.
  • the respective upper wall of the channels 304 and 305 can be curved and serve to guide the desiccant, the flaps 116 and 115 then being adapted to the upper side of the channels 304, 305.
  • the exemplary embodiments according to FIGS. 4 to 10 have flaps for outside air and in the intermediate wall separating the two connecting channels in the same way as the first exemplary embodiment. The same applies to the additional equipment in the drying chambers.
  • the flaps 15, 16 can be designed so wide that they extend in the open position over more than one fan, in particular over two or more fans. This has the advantage of a higher desiccant exchange, a higher dehumidification performance through condensation and a better mixing of the desiccants in the drying chamber.
  • the intermediate wall separating the two connecting channels can be uneven, in particular wave-shaped, and can also run obliquely in the conveying direction of the connecting channels 15, 16.
EP85107623A 1984-07-12 1985-06-20 Dispositif de séchage, notamment pour le bois de charpente Expired EP0167899B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT85107623T ATE42392T1 (de) 1984-07-12 1985-06-20 Trockenvorrichtung, insbesondere fuer schnittholz.

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE3425642 1984-07-12
DE19843425642 DE3425642C1 (de) 1984-07-12 1984-07-12 Trockenvorrichtung, insbesondere für Schnittholz
DE3443915 1984-12-01
DE19843443915 DE3443915A1 (de) 1984-07-12 1984-12-01 Trockenvorrichtung, insbesondere fuer schnittholz

Publications (3)

Publication Number Publication Date
EP0167899A2 true EP0167899A2 (fr) 1986-01-15
EP0167899A3 EP0167899A3 (en) 1986-12-30
EP0167899B1 EP0167899B1 (fr) 1989-04-19

Family

ID=25822855

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85107623A Expired EP0167899B1 (fr) 1984-07-12 1985-06-20 Dispositif de séchage, notamment pour le bois de charpente

Country Status (4)

Country Link
US (1) US4753020A (fr)
EP (1) EP0167899B1 (fr)
CA (1) CA1272019A (fr)
DE (1) DE3443915A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4206641A1 (de) * 1991-03-12 1992-09-17 Muehlboeck Kurt Trocknungsanlage mit querbelueftung
GB2286447A (en) * 1994-02-14 1995-08-16 Bernard Mclynn Drying apparatus
US6115939A (en) * 1997-04-24 2000-09-12 Ciba Specialty Chemicals Corp. Process and apparatus for the treatment of flat-form material especially of printed circuit boards
DE102009014853A1 (de) 2009-03-30 2010-10-07 Brunner, Reinhard, Dipl.-Ing. Trocknungsvorrichtung

Families Citing this family (21)

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US5054291A (en) * 1990-07-25 1991-10-08 Davis Thomas L Multi-bay system for the forced air postharvest conditioning of agricultural crops
US5341580A (en) * 1993-01-22 1994-08-30 Teal William B Method for drying wood strands
US5416985A (en) * 1993-09-23 1995-05-23 Culp; George Center bridging panel for drying green lumber in a kiln chamber
US5488785A (en) * 1993-09-23 1996-02-06 Culp; George Controlled upper row airflow method and apparatus
AU3626695A (en) * 1994-09-01 1996-03-22 William Benny Teal Method for drying raw material for the manufacture of particleboard
US5524361A (en) * 1995-02-14 1996-06-11 George Koch Sons, Inc. Flatline method of drying wafers
US6328638B1 (en) 1998-04-28 2001-12-11 Flow International Corporation Apparatus and methods for recovering abrasive from an abrasive-laden fluid
US6299510B1 (en) * 1998-04-28 2001-10-09 Flow International Corporation Abrasive removal system for use with high-pressure fluid-jet cutting device
AU9195898A (en) * 1998-08-20 2000-03-14 Wee Hou Lim A timber drying kiln
US6163981A (en) * 1998-11-25 2000-12-26 Nilsson; Bengt Method and apparatus for drying wood particles
US6467190B2 (en) 2000-03-22 2002-10-22 George R. Gulp Drying kiln
US6219937B1 (en) 2000-03-30 2001-04-24 George R. Culp Reheaters for kilns, reheater-like structures, and associated methods
US6370792B1 (en) 2000-09-01 2002-04-16 George R. Culp Structure and methods for introducing heated ari into a kiln chamber
DE102005030501B4 (de) * 2005-06-28 2009-10-29 Brunner, Reinhard, Dipl.-Ing. Trocknungsvorrichtung, insbesondere zum Trocknen von Schnittholz
DE102009037337A1 (de) 2009-08-14 2011-08-04 Brunner, Reinhard, Dipl.-Ing., 30989 Verfahren zum Trocknen von zu trocknendem Gut
DE102010054493B4 (de) 2010-12-14 2017-06-01 Hildebrand Holztechnik Gmbh Trocknungsvorrichtung
CN109163545A (zh) * 2018-09-27 2019-01-08 萍乡市金刚科技工业园有限公司 一种瓷球的干燥装置及干燥方法
WO2023213683A1 (fr) 2022-05-03 2023-11-09 Reinhard Brunner Dispositif de séchage en continu
DE102022120887A1 (de) 2022-05-03 2023-11-09 Reinhard Brunner Kanal-Trocknungsvorrichtung
DE102022130433A1 (de) 2022-05-09 2023-11-09 Reinhard Brunner Kanal-Trocknungsvorrichtung
EP4276398A1 (fr) 2022-05-09 2023-11-15 Reinhard Brunner Dispositif de séchage de canal

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FR370968A (fr) * 1906-02-12 1907-02-23 George Augustus Mower Four à sécher
GB694876A (en) * 1950-10-30 1953-07-29 Leslie Anness Cubbage Improvements relating to drying kilns
AT245498B (de) * 1961-02-14 1966-02-25 Ewemaskiner Ab Trockenanlage für Holz

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US1513597A (en) * 1923-07-28 1924-10-28 Judelson Julius Drier
US1737068A (en) * 1927-12-03 1929-11-26 Joshua M Younger Dehydrator apparatus
US1840523A (en) * 1930-02-15 1932-01-12 Gen Dry Kiln Company Lumber drying kiln
US2347601A (en) * 1943-05-21 1944-04-25 B F Sturtevant Co Thermostatic control for dry kilns
FR1234356A (fr) * 1959-07-08 1960-10-17 Procédé de séchage à basse température caractérisé par un asséchement et un rechauffage automatiques et continus de l'air ou du gaz véhiculants, et dispositif pour la réalisation de ce procédé
US3659352A (en) * 1970-05-18 1972-05-02 Cook & Assoc Inc F W Circulating air dryer
US4014107A (en) * 1976-04-07 1977-03-29 Bachrich Jakob L Drying kiln for lumber
SU1010422A1 (ru) * 1982-01-08 1983-04-07 Государственный Институт По Проектированию Лесопильных И Деревообрабатывающих Предприятий Сушилка непрерывного действи дл пиломатериалов

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR370968A (fr) * 1906-02-12 1907-02-23 George Augustus Mower Four à sécher
GB694876A (en) * 1950-10-30 1953-07-29 Leslie Anness Cubbage Improvements relating to drying kilns
AT245498B (de) * 1961-02-14 1966-02-25 Ewemaskiner Ab Trockenanlage für Holz

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4206641A1 (de) * 1991-03-12 1992-09-17 Muehlboeck Kurt Trocknungsanlage mit querbelueftung
AT396034B (de) * 1991-03-12 1993-05-25 Muehlboeck Kurt Trocknungsanlage mit querbelueftung, insbesondere fuer holz
GB2286447A (en) * 1994-02-14 1995-08-16 Bernard Mclynn Drying apparatus
GB2286447B (en) * 1994-02-14 1997-12-03 Bernard Mclynn Drying apparatus
US6115939A (en) * 1997-04-24 2000-09-12 Ciba Specialty Chemicals Corp. Process and apparatus for the treatment of flat-form material especially of printed circuit boards
DE102009014853A1 (de) 2009-03-30 2010-10-07 Brunner, Reinhard, Dipl.-Ing. Trocknungsvorrichtung

Also Published As

Publication number Publication date
EP0167899A3 (en) 1986-12-30
CA1272019A (fr) 1990-07-31
US4753020A (en) 1988-06-28
EP0167899B1 (fr) 1989-04-19
DE3443915A1 (de) 1986-06-12

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