EP1527702A1 - Method for cooling a drying apparatus for tobacco and apparatus controlled according to said method - Google Patents

Method for cooling a drying apparatus for tobacco and apparatus controlled according to said method Download PDF

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Publication number
EP1527702A1
EP1527702A1 EP04090413A EP04090413A EP1527702A1 EP 1527702 A1 EP1527702 A1 EP 1527702A1 EP 04090413 A EP04090413 A EP 04090413A EP 04090413 A EP04090413 A EP 04090413A EP 1527702 A1 EP1527702 A1 EP 1527702A1
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EP
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Prior art keywords
cooling
drying device
drying
tobacco
cooling liquid
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EP04090413A
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German (de)
French (fr)
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EP1527702B1 (en
Inventor
Torsten Grigutsch
Torsten Koch
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Koerber Technologies GmbH
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Hauni Maschinenbau GmbH
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Application filed by Hauni Maschinenbau GmbH filed Critical Hauni Maschinenbau GmbH
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    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24B—MANUFACTURE OR PREPARATION OF TOBACCO FOR SMOKING OR CHEWING; TOBACCO; SNUFF
    • A24B3/00—Preparing tobacco in the factory
    • A24B3/04—Humidifying or drying tobacco bunches or cut tobacco

Definitions

  • the invention relates to a method for cooling a drying device for a tobacco product with a drying device into which the tobacco material enters for drying, wherein for cooling the drying device is emptied and a heating device the drying device is switched off.
  • the invention further relates a correspondingly controlled drying device.
  • the drying device must be cleaned from the inside with water, for example In order to eliminate tobacco buildup, it is necessary to use the drying device previously cool to a material degradation due to large temperature differences to avoid. For this purpose, the drying device is emptied and a heating device of the drying device provided for heating the tobacco material, For example, a burner, switched off. The with the cooling on sufficiently low temperatures associated loss of time is disadvantageous because the drying device during which it is not available for drying operation.
  • the object of the present invention is a method for cooling to create a drying device that allows efficient use of the drying device allowed.
  • the invention solves this problem by the features of claims 1 and 9, in particular by supplying atomized cooling liquid into the drying device in idle mode.
  • the inventively supplied cooling liquid evaporates in the Drying device and thereby deprives the gas contained therein for the Evaporation needed heat.
  • the cooled gas causes a considerable acceleration the cooling of the surrounding drying device. Due to the reduced Cooling time is overall a more efficient use of the drying device possible.
  • Emptying the drying device means operation without further supply of the tobacco, until substantially no tobacco anymore contained in the drying device is. Empty operation of the drying device means operation without tobacco.
  • the emptying of the drying device is required in the cooling according to the invention, since an interaction of the supplied cooling liquid with the tobacco could cause adverse consequences.
  • coolant is therefore synonymous with coolant in liquid form.
  • atomized is used synonymously with "in droplet form”.
  • the cooling liquid with a sufficiently small mean droplet size fed, so that a substantially complete evaporation can take place and thereby the highest possible cooling is achieved.
  • the average droplet size less than 250 microns, preferably less than 150 microns, further preferably less than 100 microns.
  • the feeding of the cooling liquid is preferably carried out as possible far upstream, so as large a part of the drying device of the cooled by the evaporation gas flow is detected. Feeding the Coolant can in the direction of flow before the entry of the tobacco into the drying device, or also in front of the position of the heating device.
  • the coolant can the gas flow before the drying device, ie outside the same be supplied to retrofit known drying equipment to ennötechnisch. This is not mandatory.
  • the cooling liquid is preferably directly sprayed into the drying device.
  • the drying device 10 comprises a drying tube 11, in which in the drying operation an air flow which is generated by means of a compressor 12 and the heater flows 13 is supplied. In the heater 13, the supplied air by means of a burner 14th heated. The heated air is then supplied to the drying tube 11. Moist tobacco 15 is fed to the drying tube 11 by means of a feeding device 16 at 17 and by means of the supplied from the heater 13 gas flow in the arrow direction transported the drying tube 11. By contact with the hot gas stream the tobacco is heated and the moisture contained therein evaporated so that a Drying of the tobacco takes place. After leaving the drying tube 11, the tobacco separated in the separator 18 from the air flow and leaves the drying device 10 at 19.
  • a water supply device in the form of a two-fluid nozzle 20 is arranged.
  • the two-fluid nozzle 20 can in the direction of arrow water in droplet form on a carrier medium, For example, steam or air, are sprayed.
  • cleaning of the drying tube 11 may be required from the inside.
  • cold water is applied to the interior walls the drying tube 11 sprayed. Since their temperature in operation, for example, 270 ° C, a cooling to below about 170 ° C is required to a material degradation the drying tube 11 due to excessive temperature differences relative to avoid the cleaning liquid.
  • the cooling of the drying tube 11 comprises the following steps.
  • the feeder of the Tobacco flow 15 is interrupted, the compressor 12 remains in operation. This will the remaining tobacco in the drying device 10 is transported out of this and the drying device 10 is drained.
  • the burner 14 is turned off.
  • the compressor 12 is operated so that air preferably with a mean speed of 5 to 30 m / s, more preferably 10 to 15 m / s, for example 17 m / s flows through the drying plant.
  • the Flow rate in cooling mode unchanged from the drying operation be.
  • a closed circuit in a closed circuit, as in the present case, takes a Circulation of the gas preferably 0.5 to 5 seconds, more preferably 1 to 3 seconds, for example 2 s.
  • a single twin-flow nozzle 20th for the cooling of the drying tube 11 is a single twin-flow nozzle 20th sufficient.
  • the two-fluid nozzle 20 is preferably adjusted so that the water sprayed therewith has a sufficiently small mean droplet size so that the water within of the drying tube 11 completely evaporated.
  • a sufficiently small mean droplet size so that the water within of the drying tube 11 completely evaporated.
  • the water evaporates within a distance of at most 200 cm, more preferably at most 100 cm, more preferably at most 50 cm, for example about 30 to 40 cm.
  • the drying pipe 11 Due to the evaporation of the supplied by the two-fluid nozzle 20 water is the drying pipe 11 by flowing air corresponding evaporation heat withdrawn, which transfers this cooling to the drying tube 11. This is done a noticeably accelerated cooling of the drying tube 11. After cooling to a sufficiently low temperature, the compressor 12 can be turned off be started and the cleaning process.
  • the two-fluid nozzle 20, or more generally the coolant supply device arranged so that the largest possible part of the drying tube 11 of the cooled air is detected.
  • the coolant supply device can also before Drying tube 11 may be arranged so that, for example, a spraying in the heater 13 or the line 21 between the compressor 12 and heater 13 takes place.
  • the coolant supply device can also be on or be arranged below the tobacco feed at 17.
  • the drying device 10 has a control device, not shown, can be controlled automatically by means of drying and / or cooling.
  • This may in particular be a computer with a correspondingly set up Act computer program.

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  • Drying Of Solid Materials (AREA)
  • Manufacture Of Tobacco Products (AREA)

Abstract

Nebulised cooling liquid is supplied to the drying device (10) when no tobacco is present inside it. The cooling liquid is sprayed into the drying device upstream from the point where the tobacco (15) normally enters the device. The heating device (14) is switched off during cooling.

Description

Die Erfindung betrifft ein Verfahren zum Abkühlen einer Trocknungsvorrichtung für ein Tabakgut mit einer Trocknungseinrichtung, in die das Tabakgut zum Trocknen eintritt, wobei zum Abkühlen die Trocknungsvorrichtung leergefahren wird und eine Heizeinrichtung der Trocknungsvorrichtung abgeschaltet wird. Die Erfindung betrifft weiterhin eine entsprechend gesteuerte Trocknungsvorrichtung.The invention relates to a method for cooling a drying device for a tobacco product with a drying device into which the tobacco material enters for drying, wherein for cooling the drying device is emptied and a heating device the drying device is switched off. The invention further relates a correspondingly controlled drying device.

Wenn die Trocknungseinrichtung von innen mit Wasser gereinigt werden muß, beispielsweise um Tabakanhaftungen zu beseitigen, ist es erforderlich, die Trocknungseinrichtung zuvor abzukühlen, um eine Materialbeeinträchtigung infolge großer Temperaturdifferenzen zu vermeiden. Zu diesem Zweck wird die Trocknungsvorrichtung leergefahren und eine zur Erhitzung des Tabakguts vorgesehene Heizeinrichtung der Trocknungsvorrichtung, beispielsweise ein Brenner, abgeschaltet. Der mit der Abkühlung auf hinreichend niedrige Temperaturen verbundene Zeitverlust ist nachteilig, da die Trocknungsvorrichtung währenddessen nicht für den Trocknungsbetrieb zur Verfügung steht.If the drying device must be cleaned from the inside with water, for example In order to eliminate tobacco buildup, it is necessary to use the drying device previously cool to a material degradation due to large temperature differences to avoid. For this purpose, the drying device is emptied and a heating device of the drying device provided for heating the tobacco material, For example, a burner, switched off. The with the cooling on sufficiently low temperatures associated loss of time is disadvantageous because the drying device during which it is not available for drying operation.

Die Aufgabe der vorliegenden Erfindung besteht darin, ein Verfahren zum Abkühlen einer Trocknungsvorrichtung zu schaffen, das eine effiziente Nutzung der Trocknungsvorrichtung erlaubt.The object of the present invention is a method for cooling to create a drying device that allows efficient use of the drying device allowed.

Die Erfindung löst diese Aufgabe durch die Merkmale der Ansprüche 1 und 9, insbesondere durch Zuführen von zerstäubter Kühlflüssigkeit in die Trocknungseinrichtung im Leerbetrieb. Die erfindungsgemäß zugeführte Kühlflüssigkeit verdampft in der Trocknungseinrichtung und entzieht dadurch dem darin enthaltenen Gas die für die Verdampfung benötigte Wärme. Das abgekühlte Gas bewirkt eine erhebliche Beschleunigung der Abkühlung der umgebenden Trocknungseinrichtung. Aufgrund der verringerten Abkühlzeit ist insgesamt eine effizientere Nutzung der Trocknungsvorrichtung möglich.The invention solves this problem by the features of claims 1 and 9, in particular by supplying atomized cooling liquid into the drying device in idle mode. The inventively supplied cooling liquid evaporates in the Drying device and thereby deprives the gas contained therein for the Evaporation needed heat. The cooled gas causes a considerable acceleration the cooling of the surrounding drying device. Due to the reduced Cooling time is overall a more efficient use of the drying device possible.

Leerfahren der Trocknungsvorrichtung bedeutet Betrieb ohne weitere Zufuhr des Tabakguts, bis im wesentlichen kein Tabakgut mehr in der Trocknungsvorrichtung enthalten ist. Leerbetrieb der Trocknungsvorrichtung bedeutet Betrieb ohne Tabakgut.Emptying the drying device means operation without further supply of the tobacco, until substantially no tobacco anymore contained in the drying device is. Empty operation of the drying device means operation without tobacco.

Das Leerfahren der Trocknungsvorrichtung ist beim erfindungsgemäßen Abkühlen erforderlich, da eine Wechselwirkung der zugeführten Kühlflüssigkeit mit dem Tabakgut nachteilige Folgen hervorrufen könnte.The emptying of the drying device is required in the cooling according to the invention, since an interaction of the supplied cooling liquid with the tobacco could cause adverse consequences.

Wesentlich für den Erfolg der Erfindung ist das Zuführen des Kühlmittels in flüssiger Form, damit eine Verdampfung innerhalb der Trocknungseinrichtung stattfinden kann. Der Begriff Kühlflüssigkeit ist daher gleichbedeutend mit Kühlmittel in flüssiger Form. Durch Zuführen von gasförmigem Kühlmittel, beispielsweise Wasserdampf, wäre dagegen der Erfolg der Erfindung nicht erzielbar, da keine Verdampfung möglich wäre und entsprechend keine Verdampfungswärme entzogen werden könnte.Essential for the success of the invention is the feeding of the coolant in liquid Shape, so that evaporation can take place within the drying device. The term coolant is therefore synonymous with coolant in liquid form. By supplying gaseous coolant, for example water vapor, would be against the success of the invention can not be achieved because no evaporation would be possible and Accordingly, no heat of evaporation could be withdrawn.

Der Begriff "zerstäubt" wird gleichbedeutend mit "in Tröpfchenform" verwendet. Vorzugsweise wird die Kühlflüssigkeit mit einer ausreichend kleinen mittleren Tröpfchengröße zugeführt, damit eine im wesentlichen vollständige Verdampfung erfolgen kann und dadurch eine möglichst starke Abkühlung erreicht wird. Vorzugsweise beträgt die mittlere Tröpfchengröße weniger als 250 µm, vorzugsweise weniger als 150 µm, weiter vorzugsweise weniger als 100 µm.The term "atomized" is used synonymously with "in droplet form". Preferably becomes the cooling liquid with a sufficiently small mean droplet size fed, so that a substantially complete evaporation can take place and thereby the highest possible cooling is achieved. Preferably, the average droplet size less than 250 microns, preferably less than 150 microns, further preferably less than 100 microns.

Besonders vielversprechend ist die Erfindung im Falle eines Stromtrockners, wobei der ohnehin vorgesehene Gasstrom zum Transport des verdampften Kühlmittels dienen kann. In diesem Fall erfolgt das Zuführen der Kühlflüssigkeit vorzugsweise möglichst weit stromaufwärts, damit ein möglichst großer Teil der Trocknungseinrichtung von dem durch die Verdampfung abgekühlten Gasstrom erfaßt wird. Das Zuführen der Kühlflüssigkeit kann in Stromrichtung vor dem Eintritt des Tabakgutes in die Trocknungseinrichtung, oder auch vor der Position der Heizeinrichtung, erfolgen. Die Kühlflüssigkeit kann dem Gasstrom vor der Trocknungseinrichtung, also außerhalb derselben zugeführt werden, um eine Nachrüstung bekannter Trocknungseinrichtungen zu ennöglichen. Dies ist aber nicht zwingend. Die Kühlflüssigkeit wird vorzugsweise direkt in die Trocknungseinrichtung eingesprüht.Particularly promising is the invention in the case of a current dryer, wherein the Already provided gas flow to transport the vaporized coolant can. In this case, the feeding of the cooling liquid is preferably carried out as possible far upstream, so as large a part of the drying device of the cooled by the evaporation gas flow is detected. Feeding the Coolant can in the direction of flow before the entry of the tobacco into the drying device, or also in front of the position of the heating device. The coolant can the gas flow before the drying device, ie outside the same be supplied to retrofit known drying equipment to ennöglichen. This is not mandatory. The cooling liquid is preferably directly sprayed into the drying device.

Weitere vorteilhafte Merkmale und Ausführungsformen der Erfindung gehen aus den Unteransprüchen und der folgenden Beschreibung der Erfindung unter Bezugnahme auf die beigefügten Zeichnungen hervor. Dabei zeigt:

Fig. 1
eine Ausführungsform einer Trocknungsvorrichtung.
Further advantageous features and embodiments of the invention will become apparent from the dependent claims and the following description of the invention with reference to the accompanying drawings. Showing:
Fig. 1
an embodiment of a drying device.

Die Trocknungsvorrichtung 10 umfaßt ein Trocknungsrohr 11, in dem im Trocknungsbetrieb ein Luftstrom fließt, der mittels eines Verdichters 12 erzeugt und dem Erhitzer 13 zugeführt wird. Im Erhitzer 13 wird die zugeführte Luft mittels eines Brenners 14 erhitzt. Die erhitzte Luft wird danach dem Trocknungsrohr 11 zugeführt. Feuchter Tabak 15 wird mittels einer Zuführungseinrichtung 16 bei 17 dem Trocknungsrohr 11 zugeführt und mittels des vom Erhitzer 13 zugeführten Gasstroms in Pfeilrichtung durch das Trocknungsrohr 11 transportiert. Durch den Kontakt mit dem heißem Gasstrom wird der Tabak erhitzt und die darin enthaltene Feuchtigkeit verdampft, so daß eine Trocknung des Tabaks erfolgt. Nach Verlassen des Trocknungsrohrs 11 wird der Tabak in dem Abscheider 18 von dem Luftstrom getrennt und verläßt die Trocknungsvorrichtung 10 bei 19.The drying device 10 comprises a drying tube 11, in which in the drying operation an air flow which is generated by means of a compressor 12 and the heater flows 13 is supplied. In the heater 13, the supplied air by means of a burner 14th heated. The heated air is then supplied to the drying tube 11. Moist tobacco 15 is fed to the drying tube 11 by means of a feeding device 16 at 17 and by means of the supplied from the heater 13 gas flow in the arrow direction transported the drying tube 11. By contact with the hot gas stream the tobacco is heated and the moisture contained therein evaporated so that a Drying of the tobacco takes place. After leaving the drying tube 11, the tobacco separated in the separator 18 from the air flow and leaves the drying device 10 at 19.

Von der Position der Tabakzuführung 17 stromaufwärts ist in dem Trocknungsrohr 11 eine Wasserzuführungseinrichtung in Form einer Zweistoffdüse 20 angeordnet. Mittels der Zweistoffdüse 20 kann in Pfeilrichtung Wasser in Tröpfchenform über ein Trägermedium, beispielsweise Wasserdampf oder Luft, eingesprüht werden.From the position of the tobacco feed 17 upstream is in the drying tube eleventh a water supply device in the form of a two-fluid nozzle 20 is arranged. through the two-fluid nozzle 20 can in the direction of arrow water in droplet form on a carrier medium, For example, steam or air, are sprayed.

Wenn nach Produktionsende oder nach Schichtende die Innenwände des Trocknungsrohrs 11 Tabakanhaftungen aufweisen, kann eine Reinigung des Trocknungsrohrs 11 von innen erforderlich sein. Zu diesem Zweck wird kaltes Wasser auf die Innenwände des Trocknungsrohrs 11 gesprüht. Da deren Temperatur im Betrieb beispielsweise 270 °C beträgt, ist eine Abkühlung auf etwa unter 170 °C erforderlich, um eine Materialbeeinträchtigung des Trocknungsrohrs 11 infolge zu großer Temperaturdifferenzen relativ zu der Reinigungsflüssigkeit zu vermeiden. If after the end of production or after the end of the shift, the inner walls of the drying tube 11 tobacco adhesions, cleaning of the drying tube 11 may be required from the inside. For this purpose, cold water is applied to the interior walls the drying tube 11 sprayed. Since their temperature in operation, for example, 270 ° C, a cooling to below about 170 ° C is required to a material degradation the drying tube 11 due to excessive temperature differences relative to avoid the cleaning liquid.

Das Abkühlen des Trocknungsrohrs 11 umfaßt folgende Schritte. Die Zuführung des Tabakstroms 15 wird unterbrochen, der Verdichter 12 bleibt in Betrieb. Dadurch wird der restliche in der Trocknungsvorrichtung 10 befindliche Tabak aus dieser heraustransportiert und die Trocknungsvorrichtung 10 leergefahren. Der Brenner 14 wird ausgeschaltet. Mittels der Zweistoffdüse 20 wird Wasser mittels Wasserdampf in das Trocknungsrohr 11 eingesprüht. Der Verdichter 12 wird so betrieben, daß Luft vorzugsweise mit einer mittleren Geschwindigkeit von 5 bis 30 m/s, weiter vorzugsweise 10 bis 15 m/s, beispielsweise 17 m/s durch die Trocknungsanlage strömt. Vorzugsweise kann die Strömungsgeschwindigkeit im Abkühlbetrieb unverändert gegenüber dem Trocknungsbetrieb sein. Bei einem geschlossenen Kreislauf, wie im vorliegenden Fall, dauert ein Umlauf des Gases vorzugsweise 0,5 bis 5 s, weiter vorzugsweise 1 bis 3 s, beispielsweise 2 s. Für die Abkühlung des Trocknungsrohres 11 ist eine einzige Zweistromdüse 20 ausreichend.The cooling of the drying tube 11 comprises the following steps. The feeder of the Tobacco flow 15 is interrupted, the compressor 12 remains in operation. This will the remaining tobacco in the drying device 10 is transported out of this and the drying device 10 is drained. The burner 14 is turned off. By means of the two-fluid nozzle 20, water by means of steam in the drying tube 11 sprayed. The compressor 12 is operated so that air preferably with a mean speed of 5 to 30 m / s, more preferably 10 to 15 m / s, for example 17 m / s flows through the drying plant. Preferably, the Flow rate in cooling mode unchanged from the drying operation be. In a closed circuit, as in the present case, takes a Circulation of the gas preferably 0.5 to 5 seconds, more preferably 1 to 3 seconds, for example 2 s. For the cooling of the drying tube 11 is a single twin-flow nozzle 20th sufficient.

Die Zweistoffdüse 20 ist vorzugsweise so eingestellt, daß das damit eingesprühte Wasser eine ausreichend geringe mittlere Tröpfchengröße aufweist, so daß das Wasser innerhalb des Trocknungsrohres 11 vollständig verdampft. Bevorzugt ist eine möglichst schnelle Verdampfung bzw. eine Verdampfung auf möglichst kurzer Strecke, damit sich möglichst wenig Wasser auf den Innenwänden des Trocknungsrohrs niederschlägt. Vorzugsweise verdampft das Wasser daher innerhalb einer Strecke von höchstens 200 cm, weiter vorzugsweise höchstens 100 cm, weiter vorzugsweise höchstens 50 cm, beispielsweise etwa 30 bis 40 cm.The two-fluid nozzle 20 is preferably adjusted so that the water sprayed therewith has a sufficiently small mean droplet size so that the water within of the drying tube 11 completely evaporated. Preferably one is possible rapid evaporation or evaporation on the shortest possible path, so that As little water as possible precipitates on the inner walls of the drying tube. Preferably the water evaporates within a distance of at most 200 cm, more preferably at most 100 cm, more preferably at most 50 cm, for example about 30 to 40 cm.

Aufgrund der Verdampfung des mittels der Zweistoffdüse 20 zugeführten Wassers wird der das Trocknungsrohr 11 durchströmenden Luft entsprechende Verdampfungswärme entzogen, welche diese Abkühlung an das Trocknungsrohr 11 überträgt. Hierdurch erfolgt eine spürbar beschleunigte Abkühlung des Trocknungsrohrs 11. Nach einer Abkühlung auf eine hinreichend niedrige Temperatur kann der Verdichter 12 abgeschaltet werden und das Reinigungsverfahren gestartet werden.Due to the evaporation of the supplied by the two-fluid nozzle 20 water is the drying pipe 11 by flowing air corresponding evaporation heat withdrawn, which transfers this cooling to the drying tube 11. This is done a noticeably accelerated cooling of the drying tube 11. After cooling to a sufficiently low temperature, the compressor 12 can be turned off be started and the cleaning process.

Vorzugsweise ist die Zweistoffdüse 20, bzw. allgemeiner die Kühlmittelzuführungseinrichtung, so angeordnet, daß ein möglichst großer Teil des Trocknungsrohrs 11 von der abgekühlten Luft erfaßt ist. Die Kühlmittelzuführungseinrichtung kann auch vor dem Trocknungsrohr 11 angeordnet sein, so daß beispielsweise ein Einsprühen in den Erhitzer 13 oder die Leitung 21 zwischen Verdichter 12 und Erhitzer 13 erfolgt. Vorzugsweise ist jedoch die Kühlmittelzuführungseinrichtung in dem Trocknungsrohr 11 bzw. dem Erhitzer 13 nachfolgend angeordnet, damit das Wasser bereits unmittelbar nach dem Austreten aus der Kühlmittelzuführungseinrichtung verdampfen kann. Hierdurch wird beispielsweise eine Wasseransammlung beispielsweise in dem Erhitzer 13 oder der Leitung 21, vermieden. Die Kühlmittelzuführungseinrichtung kann auch gleichauf oder nachfolgend der Tabakzuführung bei 17 angeordnet sein.Preferably, the two-fluid nozzle 20, or more generally the coolant supply device, arranged so that the largest possible part of the drying tube 11 of the cooled air is detected. The coolant supply device can also before Drying tube 11 may be arranged so that, for example, a spraying in the heater 13 or the line 21 between the compressor 12 and heater 13 takes place. Preferably However, the coolant supply means in the drying tube 11 and the Heater 13 arranged below, so that the water already after the Escaping from the coolant supply device can evaporate. This will For example, a collection of water, for example in the heater 13 or the line 21, avoided. The coolant supply device can also be on or be arranged below the tobacco feed at 17.

Die Trocknungsvorrichtung 10 weist eine nicht gezeigte Steuerungseinrichtung auf, mittels der Trocknung und/oder Abkühlung automatisch gesteuert werden können. Hierbei kann es sich insbesondere um einen Computer mit einem entsprechend eingerichteten Computerprogramm handeln.The drying device 10 has a control device, not shown, can be controlled automatically by means of drying and / or cooling. This may in particular be a computer with a correspondingly set up Act computer program.

Claims (9)

Verfahren zum Abkühlen einer Trocknungsvorrichtung für ein Tabakgut mit einer Trocknungseinrichtung (11), in die das Tabakgut zum Trocknen eintritt, wobei zum Abkühlen die Trocknungsvorrichtung leergefahren wird und eine Heizeinrichtung (14) der Trocknungsvorrichtung abgeschaltet wird, gekennzeichnet durch
Zuführen von zerstäubter Kühlflüssigkeit in die Trocknungseinrichtung im Leerbetrieb.Method for cooling a drying device for a tobacco product with a drying device (11) into which the tobacco material for drying enters, wherein for cooling the drying device is emptied and a heating device (14) of the drying device is switched off, characterized by
Feeding atomized coolant into the dryer in idle mode. Abkühlverfahren nach Anspruch 1, dadurch gekennzeichnet, daß die Kühlflüssigkeit in die Trocknungseinrichtung (11) eingesprüht wird.Cooling method according to claim 1, characterized in that the cooling liquid is sprayed into the drying device (11). Abkühlverfahren nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß die Trocknungsvorrichtung eine Stromtrocknungsvorrichtung ist.Cooling method according to claim 1 or 2, characterized in that the drying device is a current drying device. Abkühlverfahren nach Anspruch 3, dadurch gekennzeichnet, daß das Zuführen der Kühlflüssigkeit in Stromrichtung vor dem Eintritt des Tabakgutes in die Trocknungseinrichtung erfolgt.Cooling method according to claim 3, characterized in that the feeding of the cooling liquid in the flow direction takes place before the entry of the tobacco material into the drying device. Abkühlverfahren nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß die Kühlflüssigkeit mit einer Tröpfchengröße zugeführt wird, die eine im wesentlichen vollständige Verdampfung in der Trocknungseinrichtung (11) ermöglicht.Cooling method according to one of claims 1 to 4, characterized in that the cooling liquid is supplied with a droplet size which allows a substantially complete evaporation in the drying device (11). Abkühlverfahren nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, daß die Kühlflüssigkeit mit einer Tröpfchengröße zugeführt wird, die eine im wesentlichen vollständige Verdampfung nach einer Strecke von höchstens 200 cm, vorzugsweise höchstens 100 cm, weiter vorzugsweise höchstens 50 cm ermöglicht.Cooling method according to one of claims 1 to 5, characterized in that the cooling liquid is supplied with a droplet size, which allows a substantially complete evaporation after a distance of at most 200 cm, preferably at most 100 cm, more preferably at most 50 cm. Abkühlverfahren nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, daß die Kühlflüssigkeit mit einer Tröpfchengröße von weniger als 250 µm, vorzugsweise weniger als 150 µm, weiter vorzugsweise weniger als 100 µm eingesprüht wird.Cooling method according to one of claims 1 to 6, characterized in that the cooling liquid is sprayed with a droplet size of less than 250 microns, preferably less than 150 microns, more preferably less than 100 microns. Abkühlverfahren nach einem der Ansprüche 1 bis 7, dadurch gekennzeichnet, daß das Einsprühen der Kühlflüssigkeit mittels einer einzigen Zweistoffdüse (20) erfolgt.Cooling method according to one of claims 1 to 7, characterized in that the spraying of the cooling liquid by means of a single two-fluid nozzle (20). Trocknungsvorrichtung zum Trocknen eines Tabakguts mit einer Steuerungseinrichtung, die zur Steuerung eines Abkühlverfahrens nach einem der Ansprüche 1 bis 8 eingerichtet ist.Drying device for drying a tobacco product with a control device, for controlling a cooling method according to one of claims 1 to 8 is set up.
EP04090413A 2003-10-28 2004-10-28 Method for cooling a drying apparatus for tobacco and apparatus controlled according to said method Revoked EP1527702B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL04090413T PL1527702T3 (en) 2003-10-28 2004-10-28 Method for cooling a drying apparatus for tobacco and apparatus controlled according to said method

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10350838A DE10350838A1 (en) 2003-10-28 2003-10-28 Method for cooling a drying device for a tobacco product and correspondingly controlled drying device
DE10350838 2003-10-28

Publications (2)

Publication Number Publication Date
EP1527702A1 true EP1527702A1 (en) 2005-05-04
EP1527702B1 EP1527702B1 (en) 2006-12-13

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ID=34399625

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EP04090413A Revoked EP1527702B1 (en) 2003-10-28 2004-10-28 Method for cooling a drying apparatus for tobacco and apparatus controlled according to said method

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EP (1) EP1527702B1 (en)
CN (1) CN1611153B (en)
AT (1) ATE347817T1 (en)
DE (2) DE10350838A1 (en)
PL (1) PL1527702T3 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1703240A2 (en) 2005-03-17 2006-09-20 International Tobacco Machinery Poland Ltd A method of drying in a superheated steam "flash" dryer

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2511331A (en) * 2013-02-28 2014-09-03 Dickinson Legg Ltd Drying Apparatus

Citations (4)

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Publication number Priority date Publication date Assignee Title
US5720306A (en) * 1996-05-17 1998-02-24 Brown & Williamson Tobacco Corporation Tobacco drying apparatus
US6062238A (en) * 1999-02-11 2000-05-16 Brown & Williamson Tobacco Corporation Method for self cleaning of tobacco drying apparatus
US20020185755A1 (en) * 2001-04-10 2002-12-12 British American Tobacco (Germany) Gmbh Process gas conditioning for tobacco dryers
US6591840B1 (en) * 1997-08-08 2003-07-15 Hauni Maschinenbau Ag Apparatus for applying a conditioning agent to tobacco

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DE3642993A1 (en) * 1986-12-17 1988-06-30 Hauni Werke Koerber & Co Kg Method for operating a continuous-flow drier for tobacco and continuous-flow tobacco drier
US5497633A (en) * 1994-06-17 1996-03-12 Cool Zone Products & Promotions, Inc. Evaporative cooling unit

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Publication number Priority date Publication date Assignee Title
US5720306A (en) * 1996-05-17 1998-02-24 Brown & Williamson Tobacco Corporation Tobacco drying apparatus
US6591840B1 (en) * 1997-08-08 2003-07-15 Hauni Maschinenbau Ag Apparatus for applying a conditioning agent to tobacco
US6062238A (en) * 1999-02-11 2000-05-16 Brown & Williamson Tobacco Corporation Method for self cleaning of tobacco drying apparatus
US20020185755A1 (en) * 2001-04-10 2002-12-12 British American Tobacco (Germany) Gmbh Process gas conditioning for tobacco dryers

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1703240A2 (en) 2005-03-17 2006-09-20 International Tobacco Machinery Poland Ltd A method of drying in a superheated steam "flash" dryer

Also Published As

Publication number Publication date
DE10350838A1 (en) 2005-06-02
CN1611153B (en) 2011-02-09
CN1611153A (en) 2005-05-04
ATE347817T1 (en) 2007-01-15
EP1527702B1 (en) 2006-12-13
DE502004002281D1 (en) 2007-01-25
PL1527702T3 (en) 2007-05-31

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