EP2735830B1 - Device and method for treating a preferably web-shaped material with a gaseous treatment medium - Google Patents

Device and method for treating a preferably web-shaped material with a gaseous treatment medium Download PDF

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Publication number
EP2735830B1
EP2735830B1 EP13193802.9A EP13193802A EP2735830B1 EP 2735830 B1 EP2735830 B1 EP 2735830B1 EP 13193802 A EP13193802 A EP 13193802A EP 2735830 B1 EP2735830 B1 EP 2735830B1
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EP
European Patent Office
Prior art keywords
drum
treatment medium
exhaust air
discharged
gaseous
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EP13193802.9A
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German (de)
French (fr)
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EP2735830A2 (en
EP2735830A3 (en
Inventor
Markus Böhn
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Truetzschler GmbH and Co KG
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Truetzschler GmbH and Co KG
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B13/00—Machines and apparatus for drying fabrics, fibres, yarns, or other materials in long lengths, with progressive movement
    • F26B13/10—Arrangements for feeding, heating or supporting materials; Controlling movement, tension or position of materials
    • F26B13/14—Rollers, drums, cylinders; Arrangement of drives, supports, bearings, cleaning
    • F26B13/16—Rollers, drums, cylinders; Arrangement of drives, supports, bearings, cleaning perforated in combination with hot air blowing or suction devices, e.g. sieve drum dryers

Definitions

  • the invention relates to a device and a method for treating a preferably web-shaped material.
  • Dryers for treating a preferably web-like material with a gaseous treatment medium, in particular air which have a treatment room and at least one drum which has a gas-permeable drum jacket, the drum being arranged in the treatment room and the web-like material to be treated being placeable on the drum jacket ,
  • a dryer usually also has a fan space with a fan, which is arranged on a first end face of the drum.
  • the fan space creates a negative pressure in the interior of the drum, so that the treatment medium arranged in the treatment space flows through the web-like material and the drum casing into the interior of the drum. At least a first part flows into the fan space from the inside of the drum.
  • the gaseous treatment medium is then processed and returned to the treatment room.
  • the present invention is therefore based on the object of providing an apparatus and a method for treating a preferably web-shaped product with a gaseous treatment medium and a method for retrofitting an apparatus for treating a preferably web-shaped product with a gaseous treatment medium, in which the energy balance is improved.
  • the invention advantageously provides that an exhaust air discharge device for discharging a second part of the gaseous treatment medium as exhaust air is arranged on the second end face of the drum opposite the first end face. This has the advantage that the exhaust air is removed directly after the gaseous treatment medium has flowed through the web-like material.
  • the gaseous treatment medium was discharged into the fan room and processed, ie mixed with fresh air and heated, and only then was the exhaust air discharged.
  • the exhaust air was thus removed after the heating.
  • the exhaust air is discharged immediately after flowing through the web-like material and is therefore not heated and then discharged. This significantly improves the energy balance of the device.
  • exhaust air is understood to mean the part of the gaseous treatment medium to be removed from the device.
  • Fig. 1 shows schematically a device 1 for treating a preferably web-shaped material 8.
  • the device can in particular be a dryer or a thermal bonding device.
  • the device 1 has a housing 6 which delimits a treatment room 14.
  • a drum 2 having a gas-permeable drum shell 4 is arranged in the treatment room 14.
  • the sheet-like material 8 is introduced via at least one deflection roller 46.
  • the sheet-like material 8 is transported with the help of the drum 2 arranged in the direction of rotation 3 of the drum 2 on the drum jacket 4. A part of the drum shell 4 is thus always from a section of the web-shaped estate 8 covered.
  • the gaseous treatment medium 18 arranged in the treatment room 14 enters the interior 50 of the drum 2 through the web-like material 8 and the gas-permeable drum jacket 4 due to a negative pressure applied in the interior 50 of the drum 2.
  • the sheet-like material 8 is dried, for example.
  • the web-like material 8 then exits the treatment room 14 again via at least one deflection roller 48.
  • the gaseous treatment medium is preferably heated.
  • the gaseous treatment medium can be air.
  • a screen cover 11 can be arranged at a distance around the drum jacket 4. This screen cover is in Fig. 2 however not in Fig. 1 shown. Due to the screen cover 11, the gaseous treatment medium 18 strikes the web-like material 8 arranged on the drum jacket 4 in a uniformly distributed manner.
  • Fig. 2 is a device made up of the device Fig. 1 is similar. The embodiment from Fig. 2 only has an additional sieve cover. Furthermore, is shown in the very schematic Fig. 1 not the internals 50 of the drum 2 or the outlet openings in the fan chamber 32 are shown. In Fig. 2 It can be seen that the gaseous treatment medium 18 arranged in the treatment room 14 enters the interior 50 of the drum 2 evenly through the screen cover 11 and through the web-like material 8 and the drum jacket 4.
  • the fan chamber 32 and thus also the fan 31 are arranged on a first end face 28 of the drum 2. Due to the negative pressure generated by the fan 31 in the interior of the drum, the gaseous treatment medium 18 arranged in the treatment space 14 is passed through the sheet-like material 8 and the gas-permeable drum jacket 4 into the interior 50 of the drum 2. At least a first part of the treatment medium 20 is led into the fan chamber 32 by the negative pressure prevailing in the fan chamber 32. The first part of the gaseous treatment medium 20 is guided through the first end face 28 of the drum 2 into the fan chamber 32.
  • the first part of the treatment medium 20 is processed by means of a preparation and return device and returned to the treatment room.
  • the first part of the gaseous treatment medium 20 can be mixed with fresh air in the fan chamber 32.
  • the fresh air 22 is already supplied to the interior 50 of the drum 2.
  • the fresh air 22 is from the bottom, as from the FIGS. 1 and 2 emerges, led into the interior of the drum.
  • the treatment room is not closed by the housing 6.
  • the first part of the gaseous treatment medium is heated by means of a heating device 54.
  • the heating device 54 comprises a gas heater (not shown) and a feed device 33.
  • a heated gaseous heating medium 52 is supplied to the fan chamber 32 by means of the heating device 54.
  • the heated gaseous heating medium 52 can e.g. heated air.
  • the heated gaseous heating medium 52 is preferably heated by means of the gas heater (not shown) and then fed to the fan chamber 32 via the feed device 33.
  • the gaseous treatment medium mixed with fresh air and heated is thus processed and returned to the treatment room 14 by means of a return device (not shown).
  • An exhaust air discharge device 25 is arranged on the second end face 30 opposite the first end face 28, through which a second part of the gaseous treatment medium arranged in the interior 50 of the drum 2 is discharged as exhaust air from the device 1.
  • exhaust air is understood to mean the part of the gaseous treatment medium to be removed from the device. It is not limited to the removal of air. However, if the gaseous treatment medium is air, air is removed.
  • the exhaust air discharge device 25 has a vacuum chamber 23.
  • the vacuum chamber 23 is arranged between the second end face 30 of the drum 2 and the housing wall 40 of the housing 6.
  • the vacuum chamber 23 has a vacuum chamber housing 44, through which the vacuum chamber 23 is delimited.
  • the second part of the gaseous treatment medium 24 is introduced into the vacuum chamber 23 via openings 26 due to the vacuum prevailing in the vacuum chamber 23.
  • the second part of the gaseous treatment medium 24 is then discharged from the lower pressure chamber 23 via an outlet opening 43. Outside the housing 6 there is a fan, which is not shown, by means of which a vacuum can be applied to the outlet opening 43.
  • the second part of the gaseous treatment medium 24 is discharged from the device 1 as exhaust air.
  • the negative pressure prevailing in the negative pressure chamber 23 is selected such that the flow rate of the second part of the treatment medium 24 in the negative pressure chamber 23 in relation to the outflow speed of the second part of the treatment medium 24 from the interior 50 of the drum 2 into the negative pressure chamber 23, i. H. in the area of the openings 26 is reduced many times over.
  • a sealing lip is arranged between the vacuum chamber housing 44 and the drum 2, so that the drum 2 can rotate in relation to the vacuum chamber housing 44.
  • the exhaust air discharge device 25 is arranged on the second end face 30 of the drum 2 and thus the second part of the treatment medium 24 can be discharged as exhaust air directly after flowing through the web-like material 8, the exhaust air is no longer heated before it is removed.
  • the energy balance of the entire device 1 is significantly improved compared to devices in which the entire gaseous treatment medium is first led into the fan room and only later is a part discharged as exhaust air.
  • the vacuum behavior 23 also significantly improves the flow behavior inside 50 of drum 2. This allows additional facilities be omitted in the interior of the drum 2, which should otherwise contribute to making the flow more even.
  • devices for treating a preferably web-shaped material 8 with a gaseous treatment medium can be retrofitted.
  • a device as is known from the prior art is in Fig. 3 shown.
  • an exhaust air discharge device 25 is arranged on the second end face 30 opposite the first end face 28.
  • a vacuum chamber housing 44 is inserted into the device, so that the vacuum chamber housing 44 delimits a vacuum chamber 23 which is arranged between the second end face 30 and the housing wall 40 of the housing 6.
  • An outlet opening 43 is introduced into the housing wall 40.
  • the outlet opening 43 can be connected to a fan that generates a negative pressure.
  • Openings 26 can be provided in the second end face 30 of the drum 2. Such openings 26 can be used in some However, devices may already be provided, these openings being closed only with lids. In this way, a device according to the prior art can easily be retrofitted with an exhaust air discharge device 25, which is arranged on the end face of the drum 2 opposite the fan space 32. The energy balance of the device can thus be considerably improved.

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

Description

Die Erfindung betrifft eine Vorrichtung und ein Verfahren zum Behandeln eines vorzugsweise bahnförmigen Guts.The invention relates to a device and a method for treating a preferably web-shaped material.

GB1208840 A , DE1729499 A1 und GB1247457 A offenbaren verschiedene Trockner. GB1208840 A . DE1729499 A1 and GB1247457 A disclose different dryers.

Es sind Trockner zum Behandeln eines vorzugsweise bahnförmigen Guts mit einem gasförmigen Behandlungsmedium, insbesondere Luft bekannt, die einen Behandlungsraum und zumindest eine einen gasdurchlässigen Trommelmantel aufweisende Trommel aufweisen, wobei die Trommel in dem Behandlungsraum angeordnet ist und das zu behandelnde bahnförmige Gut auf dem Trommelmantel platzierbar ist. Ein solcher Trockner weist zudem meistens einen Ventilatorraum mit einem Ventilator auf, der an einer ersten Stirnseite der Trommel angeordnet ist. Der Ventilatorraum erzeugt im Inneren der Trommel einen Unterdruck, so dass das in dem Behandlungsraum angeordnete Behandlungsmedium durch das bahnförmige Gut und den Trommelmantel in das Innere der Trommel strömt. Vom Inneren der Trommel strömt zumindest einer erster Teil in den Ventilatorraum. Das gasförmige Behandlungsmedium wird dann aufbereitet und in den Behandlungsraum zurückgeführt. Es besteht zunehmend Bedarf, die Energiebilanz eines solchen Trockners zu verbessern.Dryers for treating a preferably web-like material with a gaseous treatment medium, in particular air, are known which have a treatment room and at least one drum which has a gas-permeable drum jacket, the drum being arranged in the treatment room and the web-like material to be treated being placeable on the drum jacket , Such a dryer usually also has a fan space with a fan, which is arranged on a first end face of the drum. The fan space creates a negative pressure in the interior of the drum, so that the treatment medium arranged in the treatment space flows through the web-like material and the drum casing into the interior of the drum. At least a first part flows into the fan space from the inside of the drum. The gaseous treatment medium is then processed and returned to the treatment room. There is an increasing need to improve the energy balance of such a dryer.

Der vorliegenden Erfindung liegt daher die Aufgabe zugrunde, eine Vorrichtung und ein Verfahren zum Behandeln eines vorzugsweise bahnförmigen Guts mit einem gasförmigen Behandlungsmediums sowie ein Verfahren zum Nachrüsten einer Vorrichtung zum Behandeln eines vorzugsweise bahnförmigen Gutes mit einem gasförmigen Behandlungsmedium zu schaffen, bei der bzw. bei dem die Energiebilanz verbessert ist.The present invention is therefore based on the object of providing an apparatus and a method for treating a preferably web-shaped product with a gaseous treatment medium and a method for retrofitting an apparatus for treating a preferably web-shaped product with a gaseous treatment medium, in which the energy balance is improved.

Zur Lösung dieser Aufgabe dienen die Merkmale der Ansprüche 2- 1 und 10. Andere optionale Ausführungsformen, die ebenfalls zur Erfindung gehören, sind in den abhängigen Ansprüchen beschrieben.The features of claims 2- 1 and 10 serve to achieve this object. Other optional embodiments, which also belong to the invention, are described in the dependent claims.

Die Erfindung sieht in vorteilhafter Weise vor, dass eine Abluftabführeinrichtung zum Abführen eines zweiten Teils des gasförmigen Behandlungsmediums als Abluft auf der der ersten Stirnseite gegenüberliegenden zweiten Stirnseite der Trommel angeordnet ist. Dies hat den Vorteil, dass die Abluft direkt abgeführt wird nachdem das gasförmige Behandlungsmedium das bahnförmige Gut durchströmt hat.The invention advantageously provides that an exhaust air discharge device for discharging a second part of the gaseous treatment medium as exhaust air is arranged on the second end face of the drum opposite the first end face. This has the advantage that the exhaust air is removed directly after the gaseous treatment medium has flowed through the web-like material.

Bei dem bisherigen Stand der Technik wurde das gasförmige Behandlungsmedium in den Ventilatorraum abgeführt und aufbereitet, d.h. mit Frischluft versetzt und aufgeheizt, und dann wurde erst die Abluft abgeführt. Die Abluft wurde beim Stand der Technik somit nach dem Aufheizen abgeführt. Gemäß der vorliegenden Erfindung wird die Abluft jedoch direkt nach dem Durchströmen des bahnförmigen Guts abgeführt und wird somit nicht aufgeheizt und dann abgeführt. Dies verbessert die Energiebilanz der Vorrichtung erheblich. In der vorliegenden Erfindung wird unter Abluft der aus der Vorrichtung abzuführende Teil des gasförmigen Behandlungsmediums verstanden.In the prior art, the gaseous treatment medium was discharged into the fan room and processed, ie mixed with fresh air and heated, and only then was the exhaust air discharged. In the prior art, the exhaust air was thus removed after the heating. According to the present invention, however, the exhaust air is discharged immediately after flowing through the web-like material and is therefore not heated and then discharged. This significantly improves the energy balance of the device. In the present invention, exhaust air is understood to mean the part of the gaseous treatment medium to be removed from the device.

Im Folgenden werden unter Bezugnahme auf die Zeichnungen Ausführungsbeispiele der Erfindung näher erläutert.Exemplary embodiments of the invention are explained in more detail below with reference to the drawings.

Es zeigen schematisch:

Fig. 1
eine Vorrichtung zum Behandeln eines vorzugsweise bahnförmigen Guts in der Seitenansicht,
Fig. 2
eine Vorrichtung zum Behandeln eines vorzugsweise bahnförmigen Guts in einer anderen Seitenansicht, und
Fig. 3
eine Vorrichtung die nachgerüstet werden soll.
They show schematically:
Fig. 1
a device for treating a preferably web-shaped material in side view,
Fig. 2
a device for treating a preferably sheet-like material in another side view, and
Fig. 3
a device to be retrofitted.

Fig. 1 zeigt schematisch eine Vorrichtung 1 zum Behandeln eines vorzugsweise bahnförmigen Guts 8. Die Vorrichtung kann insbesondere ein Trockner oder eine Thermobondvorrichtung sein. Die Vorrichtung 1 weist ein Gehäuse 6 auf, das einen Behandlungsraum 14 begrenzt. In dem Behandlungsraum 14 ist eine einen gasdurchlässigen Trommelmantel 4 aufweisende Trommel 2 angeordnet. Fig. 1 shows schematically a device 1 for treating a preferably web-shaped material 8. The device can in particular be a dryer or a thermal bonding device. The device 1 has a housing 6 which delimits a treatment room 14. A drum 2 having a gas-permeable drum shell 4 is arranged in the treatment room 14.

In dem Behandlungsraum 14 wird das bahnförmige Gut 8 über zumindest eine Umlenkrolle 46 eingeleitet. Das bahnförmige Gut 8 wird mit Hilfe der Trommel 2 in Drehrichtung 3 der Trommel 2 auf den Trommelmantel 4 angeordnet transportiert. Ein Teil des Trommelmantels 4 ist somit stets von einem Abschnitt des bahnförmigen Guts 8 bedeckt. Das in dem Behandlungsraum 14 angeordnete gasförmige Behandlungsmedium 18 tritt aufgrund eines im Inneren 50 der Trommel 2 angelegten Unterdrucks durch das bahnförmige Gut 8 und den gasdurchlässigen Trommelmantel 4 in das Innere 50 der Trommel 2 ein. Dadurch wird das bahnförmige Gut 8 z.B. getrocknet. Das bahnförmige Gut 8 tritt dann über zumindest eine Umlenkrolle 48 wieder aus dem Behandlungsraum 14 aus. Das gasförmige Behandlungsmedium ist vorzugsweise aufgeheizt. Das gasförmige Behandlungsmedium kann Luft sein.In the treatment room 14, the sheet-like material 8 is introduced via at least one deflection roller 46. The sheet-like material 8 is transported with the help of the drum 2 arranged in the direction of rotation 3 of the drum 2 on the drum jacket 4. A part of the drum shell 4 is thus always from a section of the web-shaped estate 8 covered. The gaseous treatment medium 18 arranged in the treatment room 14 enters the interior 50 of the drum 2 through the web-like material 8 and the gas-permeable drum jacket 4 due to a negative pressure applied in the interior 50 of the drum 2. As a result, the sheet-like material 8 is dried, for example. The web-like material 8 then exits the treatment room 14 again via at least one deflection roller 48. The gaseous treatment medium is preferably heated. The gaseous treatment medium can be air.

Um den Trommelmantel 4 herum kann mit Abstand eine Siebdecke 11 angeordnet sein. Diese Siebdecke ist in Fig. 2 jedoch nicht in Fig. 1 dargestellt. Aufgrund der Siebdecke 11 trifft das gasförmige Behandlungsmedium 18 gleichmäßig verteilt auf das auf dem Trommelmantel 4 angeordnete bahnförmige Gut 8 auf.A screen cover 11 can be arranged at a distance around the drum jacket 4. This screen cover is in Fig. 2 however not in Fig. 1 shown. Due to the screen cover 11, the gaseous treatment medium 18 strikes the web-like material 8 arranged on the drum jacket 4 in a uniformly distributed manner.

In Fig. 2 ist eine Vorrichtung, die der Vorrichtung aus Fig. 1 ähnlich ist, dargestellt. Das Ausführungsbeispiel aus Fig. 2 weist lediglich zusätzlich eine Siebdecke auf. Ferner ist in der sehr schematisch dargestellten Fig. 1 nicht die Einbauten im Inneren 50 der Trommel 2 oder die Auslassöffnungen in den Ventilatorraum 32 dargestellt. In Fig. 2 ist zu erkennen, dass das in dem Behandlungsraum 14 angeordnete gasförmige Behandlungsmedium 18 gleichmäßig durch die Siebdecke 11 und durch das bahnförmige Gut 8 sowie den Trommelmantel 4 in das Innere 50 der Trommel 2 eintritt.In Fig. 2 is a device made up of the device Fig. 1 is similar. The embodiment from Fig. 2 only has an additional sieve cover. Furthermore, is shown in the very schematic Fig. 1 not the internals 50 of the drum 2 or the outlet openings in the fan chamber 32 are shown. In Fig. 2 It can be seen that the gaseous treatment medium 18 arranged in the treatment room 14 enters the interior 50 of the drum 2 evenly through the screen cover 11 and through the web-like material 8 and the drum jacket 4.

Im Inneren 50 der Trommel 2 herrscht ein Unterdruck, der durch einen in einem Ventilatorraum 32 angeordneten Ventilator 31 erzeugt wird. Der Ventilatorraum 32 und somit auch der Ventilator 31 sind an einer ersten Stirnseite 28 der Trommel 2 angeordnet. Durch den von dem Ventilator 31 im Inneren der Trommel erzeugte Unterdruck wird das in dem Behandlungsraum 14 angeordnete gasförmige Behandlungsmedium 18 durch das bahnförmige Gut 8 und den gasdurchlässigen Trommelmantel 4 in das Innere 50 der Trommel 2 geleitet. Durch den in dem Ventilatorraum 32 herrschenden Unterdruck wird zumindest ein erster Teil des Behandlungsmediums 20 in den Ventilatorraum 32 geführt. Der erste Teil des gasförmigen Behandlungsmediums 20 wird durch die erste Stirnseite 28 der Trommel 2 in den Ventilatorraum 32 geführt.A vacuum exists inside 50 of drum 2, which is generated by a fan 31 arranged in a fan space 32. The fan chamber 32 and thus also the fan 31 are arranged on a first end face 28 of the drum 2. Due to the negative pressure generated by the fan 31 in the interior of the drum, the gaseous treatment medium 18 arranged in the treatment space 14 is passed through the sheet-like material 8 and the gas-permeable drum jacket 4 into the interior 50 of the drum 2. At least a first part of the treatment medium 20 is led into the fan chamber 32 by the negative pressure prevailing in the fan chamber 32. The first part of the gaseous treatment medium 20 is guided through the first end face 28 of the drum 2 into the fan chamber 32.

Der erste Teil des Behandlungsmediums 20 wird mittels einer Aufbereitungs- und Rückführeinrichtung aufbereitet und in den Behandlungsraum rückgeführt. Dazu kann in dem Ventilatorraum 32 der erste Teil des gasförmigen Behandlungsmediums 20 mit Frischluft versetzt werden. Im vorliegenden Ausführungsbeispiel wird die Frischluft 22 jedoch schon in dem Inneren 50 der Trommel 2 zugeführt. Die Frischluft 22 wird von der Unterseite, wie aus den Fign. 1 und 2 hervorgeht, in das Innere der Trommel geführt. An der Unterseite ist der Behandlungsraum nicht durch das Gehäuse 6 verschlossen.The first part of the treatment medium 20 is processed by means of a preparation and return device and returned to the treatment room. For this purpose, the first part of the gaseous treatment medium 20 can be mixed with fresh air in the fan chamber 32. In the present exemplary embodiment, however, the fresh air 22 is already supplied to the interior 50 of the drum 2. The fresh air 22 is from the bottom, as from the FIGS. 1 and 2 emerges, led into the interior of the drum. On the underside, the treatment room is not closed by the housing 6.

Zudem wird zum Aufbereiten des bereits mit Frischluft versetzten ersten Teils des gasförmigen Behandlungsmediums wird der erste Teil des gasförmigen Behandlungsmediums mittels einer Heizeinrichtung 54 aufgeheizt. Die Heizeinrichtung 54 umfasst eine nicht dargestellte Gasheizung sowie eine Zuführeinrichtung 33.In addition, in order to process the first part of the gaseous treatment medium which has already been mixed with fresh air, the first part of the gaseous treatment medium is heated by means of a heating device 54. The heating device 54 comprises a gas heater (not shown) and a feed device 33.

Dem Ventilatorraum 32 wird mittels der Heizeinrichtung 54 ein aufgeheiztes gasförmiges Heizmedium 52 zugeführt. Das aufgeheizte gasförmige Heizmedium 52 kann z.B. aufgeheizte Luft sein. Das aufgeheizte gasförmige Heizmedium 52 wird vorzugsweise mittels der nicht dargestellten Gasheizung aufgeheizt und dann über die Zuführeinrichtung 33 zu dem Ventilatorraum 32 geführt.A heated gaseous heating medium 52 is supplied to the fan chamber 32 by means of the heating device 54. The heated gaseous heating medium 52 can e.g. heated air. The heated gaseous heating medium 52 is preferably heated by means of the gas heater (not shown) and then fed to the fan chamber 32 via the feed device 33.

Das mit Frischluft versetzte und aufgeheizte gasförmige Behandlungsmedium wird so aufbereitet dem Behandlungsraum 14 wieder mittels einer nicht dargestellten Rückführeinrichtung zugeführt.The gaseous treatment medium mixed with fresh air and heated is thus processed and returned to the treatment room 14 by means of a return device (not shown).

Auf der der ersten Stirnseite 28 gegenüberliegenden zweiten Stirnseite 30 ist eine Abluftabführeinrichtung 25 angeordnet, durch die ein zweiter Teil des im Inneren 50 der Trommel 2 angeordneten gasförmigen Behandlungsmediums als Abluft aus der Vorrichtung 1 abgeführt wird.An exhaust air discharge device 25 is arranged on the second end face 30 opposite the first end face 28, through which a second part of the gaseous treatment medium arranged in the interior 50 of the drum 2 is discharged as exhaust air from the device 1.

In der vorliegenden Erfindung wird unter Abluft der aus der Vorrichtung abzuführende Teil des gasförmigen Behandlungsmediums verstanden. Es ist nicht auf die Abführung von Luft beschränkt. Wenn das gasförmige Behandlungsmedium allerdings Luft ist, wird Luft abgeführt.In the present invention, exhaust air is understood to mean the part of the gaseous treatment medium to be removed from the device. It is not limited to the removal of air. However, if the gaseous treatment medium is air, air is removed.

Die Abluftabführeinrichtung 25 weist eine Unterdruckkammer 23 auf. Die Unterdruckkammer 23 ist zwischen der zweiten Stirnseite 30 der Trommel 2 und der Gehäusewand 40 des Gehäuses 6 angeordnet. Die Unterdruckkammer 23 weist ein Unterdruckkammergehäuse 44 auf, durch das die Unterdruckkammer 23 begrenzt ist.The exhaust air discharge device 25 has a vacuum chamber 23. The vacuum chamber 23 is arranged between the second end face 30 of the drum 2 and the housing wall 40 of the housing 6. The vacuum chamber 23 has a vacuum chamber housing 44, through which the vacuum chamber 23 is delimited.

Der zweite Teil des gasförmigen Behandlungsmediums 24 wird über Öffnungen 26 in die Unterdruckkammer 23 aufgrund des in der Unterdruckkammer 23 herrschenden Unterdrucks eingeleitet. Der zweite Teil des gasförmigen Behandlungsmediums 24 wird dann über eine Austrittsöffnung 43 aus der Unterdrucckammer 23 abgeführt. Außerhalb des Gehäuses 6 ist ein Ventilator angeordnet, der nicht dargestellt ist, durch den ein Unterdruck an der Austrittsöffnung 43 angelegt werden kann. Der zweite Teil des gasförmigen Behandlungsmediums 24 wird als Abluft aus der Vorrichtung 1 abgeführt. Der in der Unterdruckkammer 23 herrschende Unterdruck wird derart gewählt, dass die Strömungsgeschwindigkeit des zweiten Teils des Behandlungsmediums 24 in der Unterdruckkammer 23 im Verhältnis zu der Ausströmgeschwindigkeit des zweiten Teils des Behandlungsmediums 24 vom Inneren 50 der Trommel 2 in die Unterdruckkammer 23, d. h. im Bereich der Öffnungen 26, um ein Vielfaches reduziert ist.The second part of the gaseous treatment medium 24 is introduced into the vacuum chamber 23 via openings 26 due to the vacuum prevailing in the vacuum chamber 23. The second part of the gaseous treatment medium 24 is then discharged from the lower pressure chamber 23 via an outlet opening 43. Outside the housing 6 there is a fan, which is not shown, by means of which a vacuum can be applied to the outlet opening 43. The second part of the gaseous treatment medium 24 is discharged from the device 1 as exhaust air. The negative pressure prevailing in the negative pressure chamber 23 is selected such that the flow rate of the second part of the treatment medium 24 in the negative pressure chamber 23 in relation to the outflow speed of the second part of the treatment medium 24 from the interior 50 of the drum 2 into the negative pressure chamber 23, i. H. in the area of the openings 26 is reduced many times over.

Zwischen dem Unterdruckkammergehäuse 44 und der Trommel 2 ist eine Dichtlippe angeordnet, so dass die Trommel 2 in Bezug zu dem Unterdruckkammergehäuse 44 rotieren kann.A sealing lip is arranged between the vacuum chamber housing 44 and the drum 2, so that the drum 2 can rotate in relation to the vacuum chamber housing 44.

Dadurch, dass die Abluftabführeinrichtung 25 an der zweiten Stirnseite 30 der Trommel 2 angeordnet ist und somit der zweite Teil des Behandlungsmediums 24 direkt nach dem Durchströmen des bahnförmigen Guts 8 als Abluft abgeführt werden kann, wird die Abluft nicht mehr aufgeheizt bevor sie abgeführt wird. Somit wird die Energiebilanz der gesamten Vorrichtung 1 deutlich verbessert gegenüber Vorrichtungen, bei denen das gesamte gasförmige Behandlungsmedium zunächst in den Ventilatorraum geführt wird und dann erst später ein Teil als Abluft abgeführt wird.Because the exhaust air discharge device 25 is arranged on the second end face 30 of the drum 2 and thus the second part of the treatment medium 24 can be discharged as exhaust air directly after flowing through the web-like material 8, the exhaust air is no longer heated before it is removed. Thus, the energy balance of the entire device 1 is significantly improved compared to devices in which the entire gaseous treatment medium is first led into the fan room and only later is a part discharged as exhaust air.

Durch die Unterdruckkammer 23 wird zudem das Strömungsverhalten im Inneren 50 der Trommel 2 deutlich verbessert. Dadurch können zusätzliche Einrichtungen im Inneren der Trommel 2 weggelassen werden, die ansonsten zur Vergleichmäßigung der Strömung beitragen sollen.The vacuum behavior 23 also significantly improves the flow behavior inside 50 of drum 2. This allows additional facilities be omitted in the interior of the drum 2, which should otherwise contribute to making the flow more even.

Ferner Vorrichtungen zum Behandeln eines vorzugsweise bahnförmigen Guts 8 mit einem gasförmigen Behandlungsmedium, wie sie aus dem Stand der Technik bekannt sind, können nachgerüstet werden. Eine Vorrichtung, wie sie aus dem Stand der Technik bekannt ist, ist in Fig. 3 dargestellt.Furthermore, devices for treating a preferably web-shaped material 8 with a gaseous treatment medium, as are known from the prior art, can be retrofitted. A device as is known from the prior art is in Fig. 3 shown.

Die Vorrichtung, die in Fig. 3 dargestellt ist, entspricht im Wesentlichen der Vorrichtung aus Fig. 2 mit dem Unterschied, dass keine Abluftabführeinrichtung 25, die das Unterdruckkammergehäuse 44, die Unterdruckammer 23 sowie die Austrittsöffnung 43 umfasst vorgesehen ist. Eine solche Vorrichtung umfasst somit:

  • einen durch ein Gehäuse 6 begrenzten Behandlungsraum 14,
  • zumindest eine einen gasdurchlässigen Trommelmantel 4 aufweisende Trommel 2, die in dem Behandlungsraum 14 angeordnet ist, wobei das zu behandelnde bahnförmige Gut 8 auf dem Trommelmantel 4 platzierbar ist,
  • zumindest einen in zumindest einem Ventilatorraum 32 angeordneten Ventilator 31, der an einer ersten Stirnseite 28 der Trommel 2 angeordnet ist, wobei der Ventilator 31 im Inneren 50 der Trommel 2 einen Unterdruck erzeugt, so dass das in dem Behandlungsraum 14 angeordnete Behandlungsmedium 18 durch das bahnförmige Gut 8 und den Trommelmantel 4 in das Innere 50 der Trommel 2 strömt und zumindest ein erster Teil des Behandlungsmediums 20 als rückzuführendes Behandlungsmedium in den Ventilatorraum 32 strömt.
The device in Fig. 3 is shown essentially corresponds to the device Fig. 2 with the difference that no exhaust air discharge device 25, which includes the vacuum chamber housing 44, the vacuum chamber 23 and the outlet opening 43, is provided. Such a device thus comprises:
  • a treatment room 14 delimited by a housing 6,
  • at least one drum 2 having a gas-permeable drum jacket 4, which is arranged in the treatment room 14, the web-like material 8 to be treated being placeable on the drum jacket 4,
  • at least one fan 31 arranged in at least one fan chamber 32, which is arranged on a first end face 28 of the drum 2, the fan 31 generating a negative pressure in the interior 50 of the drum 2, so that the treatment medium 18 arranged in the treatment chamber 14 is caused by the web-shaped Good 8 and the drum jacket 4 flows into the interior 50 of the drum 2 and at least a first part of the treatment medium 20 flows into the fan chamber 32 as the treatment medium to be recycled.

Zum Nachrüstung der Vorrichtung wird eine Abluftabführeinrichtung 25 auf der der ersten Stirnseite 28 gegenüberliegenden zweiten Stirnseite 30 angeordnet. Dazu wird ein Unterdruckkammergehäuse 44 in die Vorrichtung eingesetzt, so dass das Unterdruckkammergehäuse 44 eine Unterdruckkammer 23 begrenzt, die zwischen der zweiten Stirnseite 30 und der Gehäusewand 40 des Gehäuses 6 angeordnet ist. In die Gehäusewand 40 wird eine Austrittsöffnung 43 eingebracht. Die Austrittsöffnung 43 kann mit einem einen Unterdruck erzeugenden Ventilator verbunden sein. In der zweiten Stirnseite 30 der Trommel 2 können Öffnungen 26 vorgesehen werden. Solche Öffnungen 26 können bei manchen Vorrichtungen jedoch schon vorgesehen sein, wobei diese Öffnungen lediglich mit Deckeln verschlossen sind. Auf diese Weise lässt sich eine Vorrichtung gemäß dem Stand der Technik leicht mit einer Abluftabführeinrichtung 25 nachrüsten, die auf der dem Ventilatorraum 32 gegenüberliegenden Stirnseite der Trommel 2 angeordnet wird. Somit kann die Energiebilanz der Vorrichtung erheblich verbessert werden.To retrofit the device, an exhaust air discharge device 25 is arranged on the second end face 30 opposite the first end face 28. For this purpose, a vacuum chamber housing 44 is inserted into the device, so that the vacuum chamber housing 44 delimits a vacuum chamber 23 which is arranged between the second end face 30 and the housing wall 40 of the housing 6. An outlet opening 43 is introduced into the housing wall 40. The outlet opening 43 can be connected to a fan that generates a negative pressure. Openings 26 can be provided in the second end face 30 of the drum 2. Such openings 26 can be used in some However, devices may already be provided, these openings being closed only with lids. In this way, a device according to the prior art can easily be retrofitted with an exhaust air discharge device 25, which is arranged on the end face of the drum 2 opposite the fan space 32. The energy balance of the device can thus be considerably improved.

Claims (12)

  1. A device (1), preferably a drier, for treating a preferably web-shaped material (8) using a gaseous treatment medium (18), comprising
    - a treatment chamber (14),
    - at least one drum (2) having a gas-permeable drum shell (4), the drum being arranged in the treatment chamber (14), wherein the web-shaped material (8) to be treated is adapted to be placed on the drum shell (4),
    - at least one fan (31) accommodated in at least one fan chamber (32), the fan being arranged at a first end face (28) of the drum (2), wherein the fan (31) generates a vacuum in the interior (50) of the drum (2), so that the treatment medium (18) present in the treatment chamber (14) flows through the web-shaped material (8) and the drum shell (4) into the interior of the drum and at least a first part of the treatment medium flows into the fan chamber,
    wherein an exhaust air discharge means (25) for discharging a second part of the treatment medium (24) as exhaust air is arranged at the second end face (30) of the drum (2) opposite the first end face (28), wherein the exhaust air discharge means (25) comprises a vacuum chamber (23),
    characterized in that
    the vacuum chamber (23) comprises a discharge opening (43) from which the second part of the gaseous treatment medium (24), discharged as exhaust air, can be discharged from the device (1).
  2. The device (1) of claim 1, characterized in that the vacuum chamber (23) is arranged at the second end face (30) of the drum (2), wherein such a vacuum can prevail in the vacuum chamber (23) that the flow velocity in the vacuum chamber (23) can be reduced many times over relative to the discharge flow velocity of the second part of the treatment medium (24) from the drum (2) into the vacuum chamber (23).
  3. The device (1) of claim 1, characterized in that the exhaust air can be discharged from the discharge opening by means of a fan.
  4. The device (1) of one of claims 1 to 3, characterized in that a conditioning and recirculation means is provided, wherein at least the first part of the gaseous treatment medium (20) that has flown into the fan chamber (32) is conditioned and the conditioned treatment medium can be recirculated into the treatment chamber (14).
  5. The device (1) of claim 4, characterized in that the conditioning and recirculation means comprises a heating means that heats the first part of the gaseous treatment medium.
  6. The device (1) of claim 4, characterized in that the heating means supplies a gaseous heated heating medium to the first part of the gaseous treatment medium to heat the same.
  7. The device (1) of one of claims 1 to 6, characterized in that a fresh air supply means supplies fresh air into the interior of the drum (2).
  8. A method for treating, preferably drying, a web-shaped material by
    - guiding or directing the web-shaped material over a drum shell (4) of a drum (2),
    - applying a vacuum to a first end face of the drum (2), preferably by means of a fan, so that a gaseous treatment medium flows through the drum shell (4) and the web-shaped material into the interior of the drum (2),
    - discharging a first part of the gaseous treatment medium (20) via the first end face (28) for the recirculation and conditioning of the first part of the gaseous treatment medium (20),
    wherein a second part of the treatment medium (24) is discharged as exhaust air at the second end face (30) of the drum (2) opposite the first end face (28), so that the second part of the treatment medium (24), discharged as exhaust air, is discharged immediately after having flown through the web-shaped material, wherein the exhaust air discharge means (25) comprises a vacuum chamber (23),
    characterized in that
    the vacuum chamber (23) comprises a discharge opening (43) from which the second part of the gaseous treatment medium (24), discharged as exhaust air, can be discharged from the device (1).
  9. The method of claim 8, characterized in that the second part of the treatment medium (24), discharged as exhaust air, is first directed into a vacuum chamber (23) from the second end face (30).
  10. The method of claim 8 or 9, characterized in that the exhaust air is discharged from the vacuum chamber (23) as exhaust air via a discharge opening (43).
  11. The method of one of claims 8 to 10, characterized in that the first part of the gaseous treatment medium (20) is discharged from the first end face (28) of the drum (2), is conditioned and again flows through the web-shaped material as conditioned gaseous treatment medium (18).
  12. The method of one of claims 8 to 11, characterized in that fresh air is supplied to the first part of the gaseous treatment medium (20) for conditioning and that it is heated.
EP13193802.9A 2012-11-22 2013-11-21 Device and method for treating a preferably web-shaped material with a gaseous treatment medium Active EP2735830B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102012221380.5A DE102012221380A1 (en) 2012-11-22 2012-11-22 Apparatus and method for treating a preferably web-shaped Guts with a gaseous treatment medium

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EP2735830A2 EP2735830A2 (en) 2014-05-28
EP2735830A3 EP2735830A3 (en) 2017-11-01
EP2735830B1 true EP2735830B1 (en) 2020-01-01

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EP (1) EP2735830B1 (en)
CN (1) CN103836889B (en)
DE (1) DE102012221380A1 (en)

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Publication number Priority date Publication date Assignee Title
ITPO20130005A1 (en) * 2013-06-07 2014-12-08 Biancalani Srl DEVICE FOR DRYING AND FINISHING OF FABRICS WITH AIR
FR3023905B1 (en) * 2014-07-16 2020-05-01 Veolia Proprete METHOD OF VENTILATION OF A ROTARY DRUM
DE102016109413A1 (en) * 2016-05-23 2017-11-23 Trützschler GmbH + Co KG Textilmaschinenfabrik Dryers for a textile web with an improved hot air supply
CN109442935B (en) * 2018-10-19 2020-05-12 阜阳天娇智能纺织服饰有限公司 Textile drying equipment

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DE6610711U (en) * 1975-10-16 Montforts A Sieve or perforated drum machine
FR1586551A (en) * 1967-11-11 1970-02-20
DE1729499A1 (en) * 1968-02-14 1972-02-24 Vepa Ag Sieve drum dryer
GB1251154A (en) * 1968-02-14 1971-10-27
DE1924668A1 (en) * 1969-05-14 1970-12-10 Kuesters Eduard Maschf Device for removing the liquid in gas-permeable material webs, especially when drying them
US4481722A (en) * 1982-06-23 1984-11-13 Kimberly-Clark Corporation System for protecting a rotary dryer from thermal stress
DE4325915A1 (en) * 1993-08-02 1995-02-09 Fleissner Maschf Gmbh Co Method for measuring humidity of a material web on a continuous drier and device for carrying out the method
DE19922429A1 (en) * 1999-05-14 2000-11-16 Stentex Gmbh Assembly for processing continuous porous fabrics has a number of mesh drums with closed sections for processing and suction with separately controlled applied pressures and temps
AT412484B (en) * 2003-04-29 2005-03-25 Andritz Ag Maschf DEVICE FOR DRYING A PAPER TRACK
DE102010018357A1 (en) * 2010-04-15 2011-10-20 Fleissner Gmbh Device for the flow-through treatment of sheet material
DE202011005041U1 (en) * 2011-04-08 2012-05-11 Trützschler Nonwovens Gmbh Dryers for a textile web

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Publication number Publication date
EP2735830A2 (en) 2014-05-28
CN103836889B (en) 2017-09-19
DE102012221380A1 (en) 2014-05-22
CN103836889A (en) 2014-06-04
EP2735830A3 (en) 2017-11-01

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