EP1024336B1 - Installation de séchage - Google Patents

Installation de séchage Download PDF

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Publication number
EP1024336B1
EP1024336B1 EP00890021A EP00890021A EP1024336B1 EP 1024336 B1 EP1024336 B1 EP 1024336B1 EP 00890021 A EP00890021 A EP 00890021A EP 00890021 A EP00890021 A EP 00890021A EP 1024336 B1 EP1024336 B1 EP 1024336B1
Authority
EP
European Patent Office
Prior art keywords
air
drying
air passage
ventilator
fan
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
EP00890021A
Other languages
German (de)
English (en)
Other versions
EP1024336A2 (fr
EP1024336A3 (fr
Inventor
Theodor Vanicek
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
Priority to AT00890021T priority Critical patent/ATE305123T1/de
Publication of EP1024336A2 publication Critical patent/EP1024336A2/fr
Publication of EP1024336A3 publication Critical patent/EP1024336A3/fr
Application granted granted Critical
Publication of EP1024336B1 publication Critical patent/EP1024336B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • F26B21/02—Circulating air or gases in closed cycles, e.g. wholly within the drying enclosure
    • F26B21/022—Circulating air or gases in closed cycles, e.g. wholly within the drying enclosure with provisions for changing the drying gas flow pattern, e.g. by reversing gas flow, by moving the materials or objects through subsequent compartments, at least two of which have a different direction of gas flow
    • F26B21/026—Circulating air or gases in closed cycles, e.g. wholly within the drying enclosure with provisions for changing the drying gas flow pattern, e.g. by reversing gas flow, by moving the materials or objects through subsequent compartments, at least two of which have a different direction of gas flow by reversing fan rotation

Definitions

  • the invention relates to a drying plant with a drying chamber, in which a drying space is defined for to be dried Good, arranged in the drying chamber fan or a fan group, at least one air passage communicating between the interior of the drying chamber and its external environment, and at least one reversal Air passage communicating between the interior of the drying chamber and its outside environment, wherein in the drying chamber, an air circulation path is formed, which leads from one side of the fan or the fan group through the drying space and back to the other side of the fan or the fan group , Wherein both the at least one air passage and the at least one reverse air passage at the same, extending between the drying room and fan or fan group portion of the air circulation path are arranged, wherein between the fan or Fan group and drying space is disposed a false ceiling or partition and the at least one air passage and the at least one reverse air passage are mounted above the false ceiling, and wherein in the air circulation path, a heating coil is arranged, which communicates with the at least one air passage or the at least one reverse air passage ,
  • a drying plant of this type is specified in EP 0 017 665 A for the rhythmic drying of ceramic moldings, wherein a fan carriage in aisles of a drying room next Trocknungsgut #2n arranged movable and provided in the drying room above the Trocknungsgut #2n an air duct ceiling.
  • the drying air is forcibly passed through the material to be dried before it passes through a return duct to circulation fans.
  • a Zuluft- and an exhaust duct are provided outside the return duct, which communicate via provided in the ceiling of the drying chamber openings with the ventilation cross-section.
  • a heating coil is arranged between the supply air and the exhaust air opening.
  • EP 0 430 910 A1 discloses a hot-air cell drying plant in which an intermediate ceiling for forced guidance of the drying air is likewise embodied.
  • an intermediate ceiling for forced guidance of the drying air is likewise embodied.
  • the known drying plant consists of a generally designated 101 drying chamber, in which a drying space 102 is defined for to be dried Good, which may be in this good to stackable goods, such as the illustrated wooden boards stack 103, or else bulk goods.
  • a fan 104 is arranged under the ceiling of the drying chamber, which is separated by a false ceiling 105 from the drying space 102.
  • two air passages 106, 107 are formed in the roof of the drying chamber, of which - depending on the conveying direction of the fan - each acts as a fresh air inlet and the other as an exhaust outlet.
  • one or more heating coils 108 are provided for heating the circulating air flow in the drying chamber, extending from the left edge of the false ceiling 105 to a side wall of the drying chamber, with heating coils also on the other side could also be located in the false ceiling in front of or behind the fan. Due to the illustrated arrangement of the fan under the ceiling with an underlying false ceiling, which separates the fan from the drying room, but the false ceiling does not extend over the entire ceiling surface, an air circulation path is formed in the drying chamber, starting from one side of the fan above the Temporary ceiling along, through the heating coil into the drying room and across it through to an opening 109 between an end edge of the false ceiling and a side wall up and back to the fan extends. The opening and closing of the flaps 106, 107 takes place automatically via a control and regulating device as a function of climate, air speed or wood moisture change.
  • This forced air circulation in the drying chamber by means of a fan is therefore expedient so that the material to be dried can release more water vapor by not always supplied with steam saturated air, which in addition to the circulation makes a fresh air supply to the drying chamber and an exhaust air removal from the drying chamber necessary.
  • the air flow rate is adjusted depending on the type and condition of the material to be dried.
  • an air flow D is generated by the fan, which is directed to the right in the drawing. Part of this air flow D is expelled from the drying chamber 101 as exhaust air D1 through the air passage 107, which now acts as an outlet. The remaining part D2 of the air flow flows through the opening 109 down into the drying room 102, whereupon it flows through the board stack 103. After the airflow has passed through the stack of boards, it is sucked upwardly through the heating register 108 (arrow D3) and heated as needed by the heating register under control of a control and regulating device. Subsequently, the heated air stream D3 mixes with cold fresh air D4, which is sucked by the fan from the air passage 106, which acts as an inlet.
  • the humid air flow D3 is first heated, then mixed with cool fresh air D4 and ejected as exhaust D1 from the passage 107 before the rest D2 of the heated air flow with the zu drying good comes into contact, ie even a part of the heating energy is lost unused.
  • the present invention aims to considerably improve the efficiency and / or energy consumption of a drying plant explained in the introduction.
  • This object is achieved in that between the at least one air passage and the at least one reverse air passage at least one projecting into the air circulation path partition wall is formed, which dividing wall defines one side of the heating register, and that the intermediate ceiling defines another side of the heating register, wherein the Heating register extends in the plane of the false ceiling from an edge of the false ceiling to the partition wall.
  • the modification according to the invention it is possible that the fresh air is sucked in without mixing with the exhaust air and ensures that the heated air passes through the material to be dried, without being partially expelled previously with the exhaust air.
  • moist air is not warmed up and immediately thereafter blown into the open, but in efficiency and energietsverêtnder the humid air is blown into the open air and independently sucked fresh air and heated and then blown through the dry material.
  • air passage and reverse air passage express that in the operation of the drying plant, these passages are flowed in opposite directions, i. one acts as an inlet and the other as an outlet.
  • the separating wall projecting into the air circulation path between the at least one air passage and the at least one return air passage is formed. This poses By suitable dimensioning ensures that build up in the drying plant, the appropriate pressure and negative pressure conditions, being sucked in by the negative pressure, the fresh air and the exhaust air is discharged by overpressure.
  • a heating coil is arranged, which communicates with the at least one air passage or the at least one reverse air passage.
  • the heater is conveniently designed so that a desired pressure difference occurs on its two sides when it comes into contact with air. This effect is reinforced by the partition wall defining at least one side of the heating register.
  • An aerodynamically favorable air circulation path results from the fact that an intermediate ceiling or intermediate wall is arranged between fan or fan group and drying space.
  • This intermediate ceiling or intermediate wall may advantageously limit at least one side of the heating register, wherein it may also be below the drying material or laterally thereof.
  • FIGS. 1 and 2 The embodiment of a drying installation according to the invention shown in FIGS. 1 and 2 is a further development of the installation of the prior art shown in FIGS. 3 and 4.
  • the same or similar parts are therefore shown with the same reference numerals, each reduced by 100 shown. A more detailed explanation of these parts can be omitted, and it is instead made to the description above.
  • the drying plant according to the invention consists of a generally designated 1 drying chamber in which a drying space 2 is defined for to be dried Good, such as wooden boards 3.
  • a fan 4 is arranged under the ceiling of the drying chamber, by a False ceiling 5 is separated from the drying room 2.
  • a fan it is also possible to provide a group of fans, which are arranged next to one another or one above the other, for example.
  • the fans can be axial or radial fans.
  • two adjacent air passages 6, 7 are formed in the roof of the drying chamber, of which - depending on the conveying direction of the fan - each acts as a fresh air inlet and the other as an exhaust outlet.
  • a downward Partition 11 separates the openings of the passages from each other and forms a branch for the air circulation path.
  • Each air passage may conveniently be closed selectively or together with others by butterfly valves 12.
  • a heating register 8 is provided for heating the circulating in the drying chamber air flow, which extends from the right edge of the false ceiling 5 to the partition wall 11.
  • the false ceiling 5 is not quite enough to the left side wall of the drying chamber 1, but leaves an opening 9 free, can flow through the air.
  • the chosen size of the opening depends on factors such as the wood dimension, the stacking slats, the pile height and number and the type of wood. So that the air can flow through the material to be dried, but not above it, an apron 10 hangs down from the false ceiling 5.
  • an air circulation path is formed in the drying chamber, which proceeds from one side of the fan along the intermediate ceiling through the heating coil into the drying room and across it then through the opening 9 upwards and back to the fan again.
  • the flaps and / or heating register can be arranged on both sides in the same Funigon principle.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Drying Of Solid Materials (AREA)

Claims (5)

  1. Installation de séchage avec une chambre de séchage (1) dans laquelle il y a défini un espace de séchage (2) pour la matière à sécher, au moins un ventilateur (4) ou groupe de ventilateurs disposé dans la chambre de séchage (1), au moins un passage d'air (6) communiquant entre l'intérieur de la chambre de séchage (1) et l'ambiance extérieure de celle-ci, et au moins un passage inverse d'air (7) communiquant entre l'intérieur de la chambre de séchage (1) et l'ambiance extérieure de celle-ci, un chemin de circulation d'air, qui passe d'un côté du ventilateur (4) ou groupe de ventilateurs à travers l'espace de séchage (2) et retourne à l'autre côté du ventilateur (4) ou groupe de ventilateurs, étant formé dans la chambre de séchage (1), l'au moins un passage d'air (6) aussi que l'au moins un passage inverse d'air (7) étant formés dans la même partie (A2 et A5; B6 et B3) du chemin de circulation d'air s'étendant entre l'espace de séchage (2) et le ventilateur (4) ou groupe de ventilateurs, un plancher intermédiaire (5) ou une paroi intermédiaire étant disposé(e) entre le ventilateur (4) ou groupe de ventilateurs et l'espace de séchage (2) avec l'au moins un passage d'air (6) et l'au moins un passage inverse d'air (7) étant installés au-dessus du plancher intermédiaire (5), un registre de chauffage (8), qui communique avec l'au moins un passage d'air (6) ou l'au moins un passage inverse d'air (7), étant disposé dans le chemin de circulation d'air, caractérisée en ce que
    au moins une cloison (11) avançant dans le chemin de circulation d'air est formée entre l'au moins un passage d'air (6) et l'au moins un passage inverse d'air (7), la cloison (11) délimitant un côté du registre de chauffage (8), et que
    le plancher intermédiaire (5) délimite un autre côté du registre de chauffage (8), ce registre de chauffage (8) s'étendant dans le plan du plancher intermédiaire (5) d'un bord du plancher intermédiaire (5) jusqu'à la cloison (11).
  2. Installation de séchage selon la revendication 1, caractérisée en ce qu'au moins un passage d'air et/ou un passage inverse d'air est muni de clapets d'arrêt (12).
  3. Installation de séchage selon la revendication 1 ou 2, caractérisée en ce que le sens de débit du ventilateur (4) ou groupe de ventilateurs est réversible.
  4. Installation de séchage selon la revendication 1, 2 ou 3, caractérisée en ce que la capacité de débit du ventilateur (4) ou groupe de ventilateurs est ajustable.
  5. Installation de séchage selon l'une quelconque des revendications 2 à 4, caractérisée en ce qu'un dispositif de commande et de réglage est prévu afin d'ajuster le sens et/ou la capacité du débit du ventilateur et/ou la position des clapets d'arrêt.
EP00890021A 1999-01-29 2000-01-26 Installation de séchage Expired - Lifetime EP1024336B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT00890021T ATE305123T1 (de) 1999-01-29 2000-01-26 Trocknungsanlage

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT0012299A AT407797B (de) 1999-01-29 1999-01-29 Trocknungsanlage
AT12299 1999-01-29

Publications (3)

Publication Number Publication Date
EP1024336A2 EP1024336A2 (fr) 2000-08-02
EP1024336A3 EP1024336A3 (fr) 2001-11-14
EP1024336B1 true EP1024336B1 (fr) 2005-09-21

Family

ID=3482103

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00890021A Expired - Lifetime EP1024336B1 (fr) 1999-01-29 2000-01-26 Installation de séchage

Country Status (3)

Country Link
EP (1) EP1024336B1 (fr)
AT (2) AT407797B (fr)
DE (1) DE50011192D1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
PL405932A1 (pl) * 2013-11-06 2015-05-11 Amenda Stanisław Zakład Stolarski Instalacja do suszenia, w szczególności do suszenia drewna i sposób suszenia w takiej instalacji
CN105651011B (zh) * 2015-12-24 2018-06-12 江西立维卫浴有限公司 一种陶瓷生产线的干燥装置
CN106805270A (zh) * 2017-03-21 2017-06-09 张彦勇 一种枸杞烘干房

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE300316C (fr) *
FR1023006A (fr) * 1949-08-09 1953-03-12 Appareil pour le conditionnement de l'air dans les locaux industriels, en particulier pour le séchage des pâtes alimentaires
FR1103916A (fr) * 1954-05-31 1955-11-08 Séchoir statique pour pâtes alimentaires
FR1247859A (fr) * 1959-02-14 1960-12-02 Svenska Flaektfabriken Ab Procédé pour régler la force du séchage dans les sécheurs à contre-courant
GB1229987A (fr) * 1967-05-01 1971-04-28
USRE28226E (en) * 1970-05-18 1974-11-05 Circulating air dryer
DE2914243C3 (de) * 1979-04-09 1986-03-27 Keller Ofenbau GmbH, 4530 Ibbenbüren Anlage zum rhythmischen Trocknen von keramischen Formlingen
AT384887B (de) * 1981-11-03 1988-01-25 Leisser Josef Trockeneinrichtung fuer holz
DE3340489A1 (de) * 1983-11-09 1985-08-14 Lignomat GmbH, 7148 Remseck Verfahren zum trocknen von schnittholz
AT403734B (de) * 1987-04-01 1998-05-25 Vanicek Friedrich Anordnung von axialventilatoren für holztrocknungsanlagen
IT1235898B (it) * 1989-12-01 1992-11-25 Margaritelli Spa Perfezionamento degli impianti per l'essicazione del legno, del tipo definito " a cella ad aria calda "
AT2034U1 (de) * 1997-04-11 1998-03-25 Muehlboeck Kurt Trocknungsanlage, insbesondere für schnittholz

Also Published As

Publication number Publication date
DE50011192D1 (de) 2005-10-27
EP1024336A2 (fr) 2000-08-02
EP1024336A3 (fr) 2001-11-14
ATA12299A (de) 2000-10-15
AT407797B (de) 2001-06-25
ATE305123T1 (de) 2005-10-15

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