EP1268085A1 - Method and device for purifiying air contaminated by paint partices - Google Patents

Method and device for purifiying air contaminated by paint partices

Info

Publication number
EP1268085A1
EP1268085A1 EP01911231A EP01911231A EP1268085A1 EP 1268085 A1 EP1268085 A1 EP 1268085A1 EP 01911231 A EP01911231 A EP 01911231A EP 01911231 A EP01911231 A EP 01911231A EP 1268085 A1 EP1268085 A1 EP 1268085A1
Authority
EP
European Patent Office
Prior art keywords
paint particles
belt
paint
air
suction
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.)
Withdrawn
Application number
EP01911231A
Other languages
German (de)
French (fr)
Inventor
Michael Eder
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.)
Brain Flash-Patententwicklungs GmbH
Original Assignee
Brain Flash-Patententwicklungs GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Brain Flash-Patententwicklungs GmbH filed Critical Brain Flash-Patententwicklungs GmbH
Publication of EP1268085A1 publication Critical patent/EP1268085A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B14/00—Arrangements for collecting, re-using or eliminating excess spraying material
    • B05B14/20—Arrangements for collecting, re-using or eliminating excess spraying material from moving belts, e.g. filtering belts or conveying belts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B14/00—Arrangements for collecting, re-using or eliminating excess spraying material
    • B05B14/40—Arrangements for collecting, re-using or eliminating excess spraying material for use in spray booths
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B14/00—Arrangements for collecting, re-using or eliminating excess spraying material
    • B05B14/40—Arrangements for collecting, re-using or eliminating excess spraying material for use in spray booths
    • B05B14/44—Arrangements for collecting, re-using or eliminating excess spraying material for use in spray booths using walls specially adapted for promoting separation of the excess material from the air, e.g. baffle plates

Definitions

  • the invention relates to a method for cleaning air contaminated with paint particles, wherein paint particles passing by the workpiece to be painted are sucked off by a suction device, and a device for carrying out this method.
  • the object of the invention is to protect these filters arranged in the suction device or to save them at all, while at the same time creating the possibility of recovering the deposited paint particles.
  • the method according to the invention provides that the flow of the suction air is guided along the outer belt surface of at least one endlessly rotating belt, at least some of the paint particles contained in the suction air being separated onto the rotating belt.
  • the device according to the invention provides that the suction device is arranged downstream behind the region of the endless belt which separates the paint particles from the air.
  • the suction device attracts and accelerates the paint particles distributed in the air, guiding the flow of the suction air along the outer belt top
  • the surface of the endless belt leads to the fact that at least some of the paint particles contained in the suction air are deposited on the belt.
  • the endless belt directly behind the workpiece to be painted.
  • the tape can then also take up paint particles passing directly past the workpiece to be painted, as is shown in EP 0 650 398 B1.
  • the endlessly circulating belt passes through a removal device for the picked-up paint, in which the paint is preferably scraped off.
  • the endlessly circulating belt not only has the function of separating paint particles separated from the air, but is also used to collect paint particles passing directly on the workpiece to be painted, it is advantageous if the tape is deposited at a point which occurs after the Removal device and in front of the point at which the paint particles are collected directly.
  • a structurally particularly favorable solution for the device for carrying out the method is obtained if the endless belt has a region in which it is deflected approximately in a U-shape and the suction opening of the suction device is arranged basically at the indentation formed by the deflection. This makes it possible to transfer paint particles from the exhaust air to rollers which are arranged inside the indentation and which can be pressed against the outside of the rotating belt.
  • the deposition of the paint particles on the rollers can be improved in that the roller is provided with electrical grounding and in that a device is provided for electrostatically charging the paint particles carried by the extracted air.
  • the transfer of the applied paint from the rollers to the belt is carried out by a
  • rollers and belt promoted Relative movement between rollers and belt promoted. It can therefore be provided that the roller is driven independently of the belt.
  • the rollers can driven slower than the belt or even temporarily rotating in opposite directions.
  • the rollers it is advisable to deflect the belt at least once in the area separating the paint particles.
  • the paint particles accelerated by the suction device hit the belt due to the deflection and stick there. It is particularly effective if the tape is guided in a zigzag fashion in the area separating the paint particles.
  • FIG. 1 is a diagrammatic representation of a device according to the invention obliquely from the front, FIG. 2 shows the rear of the device of FIG. 1,
  • Fig. 3 shows the application of a device according to the invention in a car painting booth
  • Fig. 4 is a schematic diagram of an alternative embodiment of the device according to the invention.
  • the device according to the invention serves to collect and recover those paint particles 6 which pass through the workpiece 7 when painting workpieces by means of a spray organ 8.
  • an endlessly circulating belt 1 is provided in the device shown in FIGS. 1 and 2, which moves in the direction of arrow 5.
  • the suction device for the air which is indicated by the arrows 9 and is loaded with paint particles 6, is located inside the device.
  • the design shown is particularly space-saving because that the band 1 is deflected in a U-shape, the suction opening 2 of the suction device, not shown, being arranged on the base of the indentation 3 formed thereby. This creates an air flow along the surface of the belt 1.
  • the suction device 2 is located in a wall, not shown, which laterally delimits the device.
  • the air loaded with paint particles 6 does not reach the suction opening 2 directly, but is directed in a meandering manner around rollers 4 made of metal. Particularly when these rollers 4 are grounded and the paint particles 6 are electrically charged, paint particles 6 are deposited on the rollers 4. As a result, they do not reach the suction device, so that the exiting exhaust air 10 requires little or no filtering.
  • the rollers 4 are either continuously pressed against the belt 1 and rotate with it, or they can at least be pressed against the belt 1 intermittently. Since the belt 1 has just passed through the cleaning device shown in FIG. 2 in the area of the rollers 4, it absorbs most of the particles 6 deposited on the rollers 4 before it reaches the area behind the workpiece 7, where the predominant amount of the impinging lacquer passing the workpiece 7 directly.
  • FIG. 3 shows the use of the device according to the invention in a car painting booth 14.
  • the object 7 to be painted is a car. It stands on an air-permeable grating through which the air enriched with paint particles 6, represented by the arrows 9, is sucked downwards. The exhaust air stream is sucked into the indentation 3 provided with rollers 4, where the paint particles are rolled onto the belt 1 and separated.
  • a removal device 13 is provided, which can be constructed similarly to that shown in FIG. 2.
  • the device according to the invention replaces the previously provided filter at any point in the exhaust air duct 15, which leads to a suction device, not shown.
  • two endless belts 1 are arranged correspondingly, between which a zigzag-shaped channel 16 is formed. Due to the numerous deflections in channel 16, the Paint particles 6 due to their inertia against the tapes 1 and stick there.
  • removal devices 13 are provided for cleaning the tapes 1.
  • the emerging exhaust air 10 is free of impurities.

Landscapes

  • Details Or Accessories Of Spraying Plant Or Apparatus (AREA)
  • Filtering Of Dispersed Particles In Gases (AREA)
  • Coating Apparatus (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)
  • Electrostatic Separation (AREA)

Abstract

A method and device for purifying air contaminated by paint particles (6). Paint particles passing in front of a workpiece (7) which is to be painted is suctioned off by means of a suction device. The flow of suctioned air is guided along the outer surface of at least one endlessly circulating loop (1). At least part of the paint particles (6) contained in the suctioned air is deposited upon the circulating loop (1).

Description

Verfahren und Einrichtung zur Reinigung von mit Process and device for cleaning with
Lackpartikeln verunreinigter LuftPaint particles of contaminated air
Die Erfindung bezieht sich auf ein Verfahren zur Reinigung von mit Lackpartikein ver- unreinigter Luft, wobei an dem zu lackierenden Werkstück vorbeitretende Lackpartikel durch eine Absaugeinrichtung abgesaugt werden, sowie eine Einrichtung zur Durchführung dieses Verfahrens.The invention relates to a method for cleaning air contaminated with paint particles, wherein paint particles passing by the workpiece to be painted are sucked off by a suction device, and a device for carrying out this method.
Beim Lackieren von Werkstücken stellt sich das Problem, daß nicht alle aus dem Sprühorgan austretenden Lackpartikel tatsächlich am Werkstück auftreffen und dort haften bleiben. Sogenannter Overspray tritt am Werkstück vorbei und verteilt sich in der umgebenden Luft. In manchen Fällen ist es möglich, durch die Anordnung eines endlosen Bandes hinter dem zu lackierenden Werkstück einen Teil des vorbeitretenden Lackes aufzufangen und wiederzugewinnen. Eine derartige Einrichtung ist bei- spielsweise in der EP 0 650 398 B1 dargestellt. In jedem Fall sind jedoch zusätzliche Absaugeinrichtungen notwendig, um weder auf dem zu lackierenden Werkstück, noch auf das Band (falls vorhanden) auftreffende Lackpartikel aus der Luft zu entfernen. In diesen Absaugeinrichtungen müssen Filter angeordnet sein, die die von der Luft mitgetragenen Lackpartikel herausfiltern.When painting workpieces, the problem arises that not all paint particles emerging from the spray element actually hit the workpiece and adhere there. So-called overspray passes the workpiece and is distributed in the surrounding air. In some cases it is possible, by arranging an endless belt behind the workpiece to be painted, to collect and recover part of the paint that is passing by. Such a device is shown, for example, in EP 0 650 398 B1. In any case, however, additional suction devices are necessary in order not to remove paint particles from the air that strike neither the workpiece to be painted nor the belt (if present). Filters must be arranged in these suction devices, which filter out the paint particles carried by the air.
Aufgabe der Erfindung ist es, diese in der Absaugeinrichtung angeordneten Filter zu schonen oder überhaupt einzusparen, wobei gleichzeitig die Möglichkeit geschaffen werden soll, die abgeschiedenen Lackpartikel wiederzugewinnen.The object of the invention is to protect these filters arranged in the suction device or to save them at all, while at the same time creating the possibility of recovering the deposited paint particles.
Das erfindungsgemäße Verfahren sieht dazu vor, daß der Strom der Absaugluft entlang der äußeren Bandoberfläche zumindest eines endlos umlaufenden Bandes geführt wird, wobei wenigstens ein Teil der in der Absaugluft enthaltenen Lackpartikel auf das umlaufende Band abgeschieden wird.To this end, the method according to the invention provides that the flow of the suction air is guided along the outer belt surface of at least one endlessly rotating belt, at least some of the paint particles contained in the suction air being separated onto the rotating belt.
Die erfindungsgemäße Einrichtung sieht vor, daß die Absaugeinrichtung stromabwärts hinter dem die Lackpartikel aus der Luft abscheidenden Bereich des endlosen Bandes angeordnet ist.The device according to the invention provides that the suction device is arranged downstream behind the region of the endless belt which separates the paint particles from the air.
Die Absaugeinrichtung zieht die in der Luft verteilten Lackpartikel an und beschleunigt sie, wobei die Führung des Stromes der Absaugluft entlang der äußeren Bandober- fläche das des endlos umlaufenden Bandes dazu führt, daß zumindest ein Teil der in der Absaugluft enthaltenden Lackpartikel auf das umlaufende Band abgeschieden wird.The suction device attracts and accelerates the paint particles distributed in the air, guiding the flow of the suction air along the outer belt top The surface of the endless belt leads to the fact that at least some of the paint particles contained in the suction air are deposited on the belt.
In manchen Fällen ist es möglich, das endlos umlaufende Band direkt hinter dem zu lackierenden Werkstück anzuordnen. Das Band kann dann auch direkt an dem zu lackierenden Werkstück vorbeitretende Lackpartikel aufnehmen, wie dies in der EP 0 650 398 B1 dargestellt ist.In some cases it is possible to arrange the endless belt directly behind the workpiece to be painted. The tape can then also take up paint particles passing directly past the workpiece to be painted, as is shown in EP 0 650 398 B1.
Zur Wiedergewinnung der Lackpartikel kann vorgesehen sein, daß das endlos umlaufende Band eine Abnahmeeinrichtung für den aufgenommenen Lack durchläuft, in der der Lack vorzugsweise abgeschabt wird.To recover the paint particles, it can be provided that the endlessly circulating belt passes through a removal device for the picked-up paint, in which the paint is preferably scraped off.
Hat das endlos umlaufende Band nicht nur die Funktion, aus der Luft abgeschiedene Lackpartikel abzuscheiden, sondern wird auch dazu verwendet, direkt am zu lackierenden Werkstück vorbeitretende Lackpartikel aufzufangen, ist es vorteilhaft, wenn die Abscheidung auf das Band an einer Stelle erfolgt, welche nach der Abnahmeeinrichtung und vor der Stelle liegt, an der die Lackpartikel direkt aufgefangen werden.If the endlessly circulating belt not only has the function of separating paint particles separated from the air, but is also used to collect paint particles passing directly on the workpiece to be painted, it is advantageous if the tape is deposited at a point which occurs after the Removal device and in front of the point at which the paint particles are collected directly.
Eine konstruktiv besonders günstige Lösung für die Einrichtung zur Durchführung des Verfahrens ergibt sich, wenn das endlose Band einen Bereich aufweist, in welchem es etwa U-förmig umgelenkt ist, und die Absaugöffnung der Absaugeinrichtung im Grunde der durch die Umlenkung gebildeten Einbuchtung angeordnet ist. Dies ermöglicht es, Lackpartikel aus der Abluft auf Walzen zu übertragen, die innerhalb der Einbuchtung angeordnet sind, und die an die Außenseite des umlaufenden Bands anpreßbar sind.A structurally particularly favorable solution for the device for carrying out the method is obtained if the endless belt has a region in which it is deflected approximately in a U-shape and the suction opening of the suction device is arranged basically at the indentation formed by the deflection. This makes it possible to transfer paint particles from the exhaust air to rollers which are arranged inside the indentation and which can be pressed against the outside of the rotating belt.
Die Ablagerung der Lackpartikel an den Walzen läßt sich dadurch verbessern, daß die Walze mit einer elektrischen Erdung versehen ist, und daß eine Einrichtung zur elek- trostatischen Aufladung der von der abgesaugten Luft mitgeführten Lackpartikel vorgesehen ist.The deposition of the paint particles on the rollers can be improved in that the roller is provided with electrical grounding and in that a device is provided for electrostatically charging the paint particles carried by the extracted air.
Die Übertragung des angelegten Lackes von den Walzen auf das Band wird durch eineThe transfer of the applied paint from the rollers to the belt is carried out by a
Relativbewegung zwischen Walzen und Band gefördert. Deshalb kann vorgesehen sein, daß die Walze unabhängig vom Band angetrieben ist. Die Walzen können dadurch langsamer angetrieben werden als das Band oder sich sogar vorübergehend gegenläufig drehen.Relative movement between rollers and belt promoted. It can therefore be provided that the roller is driven independently of the belt. The rollers can driven slower than the belt or even temporarily rotating in opposite directions.
Als Alternative oder Ergänzung zu den Walzen bietet sich an, das Band in dem die Lackpartikel abscheidenden Bereich zumindest einmal umzulenken. Die durch die Absaugeinrichtung beschleunigten Lackpartikel prallen aufgrund der Umlenkung auf das Band und bleiben dort haften. Besonders effektiv ist es, wenn das Band in dem die Lackpartikel abscheidenden Bereich zickzackförmig geführt ist.As an alternative or supplement to the rollers, it is advisable to deflect the belt at least once in the area separating the paint particles. The paint particles accelerated by the suction device hit the belt due to the deflection and stick there. It is particularly effective if the tape is guided in a zigzag fashion in the area separating the paint particles.
Einzelheiten der Erfindung werden anschließend anhand der Zeichnungen näher erläutert.Details of the invention are subsequently explained in more detail with reference to the drawings.
Fig. 1 ist eine schaubildliche Darstellung einer erfindungsgemäßen Einrichtung schräg von vorne, Fig. 2 zeigt die Hinterseite der Einrichtung von Fig. 1 ,1 is a diagrammatic representation of a device according to the invention obliquely from the front, FIG. 2 shows the rear of the device of FIG. 1,
Fig. 3 zeigt die Anwendung einer erfindungsgemäßen Einrichtung in einer Autolackierkabine undFig. 3 shows the application of a device according to the invention in a car painting booth and
Fig. 4 eine Prinzipdarstellung einer alternativen Ausführungsform der erfindungsgemäßen Einrichtung.Fig. 4 is a schematic diagram of an alternative embodiment of the device according to the invention.
Die erfindungsgemäße Einrichtung dient dazu, jene Lackteilchen 6 aufzufangen und wieder zu gewinnen, welche bei der Lackierung von Werkstücken mittels eines Sprühorgans 8 am Werkstück 7 vorbeitreten.The device according to the invention serves to collect and recover those paint particles 6 which pass through the workpiece 7 when painting workpieces by means of a spray organ 8.
Dazu ist bei der in den Fig. 1 und 2 dargestellten Einrichtung ein endlos umlaufendes Band 1 vorgesehen, welches sich in Richtung des Pfeiles 5 bewegt. Die auf das BandFor this purpose, an endlessly circulating belt 1 is provided in the device shown in FIGS. 1 and 2, which moves in the direction of arrow 5. The one on the tape
I auftreffenden Lackpartikel 6 werden durch das Band 1 auf die Hinterseite der Einrichtung transportiert, welche in Fig. 2 dargestellt ist. Dort werden sie durch AbstreiferI impinging paint particles 6 are transported by the belt 1 to the rear of the device, which is shown in Fig. 2. There they are scrapered
I I zur Bandmitte geleitet und in einem Auffangbehälter 12 gesammelt. Es wäre ohne weiteres möglich, die kontinuierliche Reinigung des Bandes 1 auch auf andere Weise durchzuführen.I I directed to the middle of the belt and collected in a collecting container 12. It would be readily possible to carry out the continuous cleaning of the belt 1 in another way.
Neu an der dargestellten Einrichtung ist zunächst, daß sich die Absaugeinrichtung für die durch die Pfeile 9 angedeutete, mit Lackpartikeln 6 beladene Luft im Inneren der Einrichtung befindet. Besonders raumsparend ist die dargestellte Bauweise dadurch, daß das Band 1 U-förmig umgelenkt ist, wobei die Absaugöffnung 2 der nicht gezeigten Absaugeinrichtung auf dem Grunde der dadurch gebildeten Einbuchtung 3 angeordnet ist. Dadurch entsteht eine Luftströmung entlang der Oberfläche des Bandes 1. Die Aubsaugeinrichtung 2 befindet sich in einer nicht gezeigten Wand, die die Einrich- tung seitlich begrenzt.What is new about the device shown is first of all that the suction device for the air, which is indicated by the arrows 9 and is loaded with paint particles 6, is located inside the device. The design shown is particularly space-saving because that the band 1 is deflected in a U-shape, the suction opening 2 of the suction device, not shown, being arranged on the base of the indentation 3 formed thereby. This creates an air flow along the surface of the belt 1. The suction device 2 is located in a wall, not shown, which laterally delimits the device.
Die mit Lackteilchen 6 beladene Luft gelangt nicht unmittelbar zur Absaugöffnung 2, sondern wird mäanderförmig um Walzen 4 aus Metall gelenkt. Insbesondere wenn diese Walzen 4 geerdet und die Lackpartikel 6 elektrisch geladen sind, schlagen sich Lackpartikel 6 auf den Walzen 4 nieder. Sie gelangen dadurch nicht zur Absaugeinrichtung, sodaß die austretende Abluft 10 einer nur geringen oder gar keiner Filterung bedarf.The air loaded with paint particles 6 does not reach the suction opening 2 directly, but is directed in a meandering manner around rollers 4 made of metal. Particularly when these rollers 4 are grounded and the paint particles 6 are electrically charged, paint particles 6 are deposited on the rollers 4. As a result, they do not reach the suction device, so that the exiting exhaust air 10 requires little or no filtering.
Damit sich auf den Walzen 4 nicht zunehmend Rückstände ansammeln, sind die Walzen 4 entweder dauernd an das Band 1 angepreßt und laufen mit diesem um, oder sie sind zumindest intermittierend an das Band 1 anpreßbar. Da das Band 1 im Bereich der Walzen 4 eben die in Fig. 2 dargestellte Reinigungseinrichtung durchlaufen hat, nimmt es die meisten der auf den Walzen 4 abgelagerten Partikel 6 auf, bevor es in den Bereich hinter dem Werkstück 7 gelangt, wo die überwiegende Menge des am Werkstück 7 vorbeigehenden Lacks direkt auftrifft.So that residues do not accumulate increasingly on the rollers 4, the rollers 4 are either continuously pressed against the belt 1 and rotate with it, or they can at least be pressed against the belt 1 intermittently. Since the belt 1 has just passed through the cleaning device shown in FIG. 2 in the area of the rollers 4, it absorbs most of the particles 6 deposited on the rollers 4 before it reaches the area behind the workpiece 7, where the predominant amount of the impinging lacquer passing the workpiece 7 directly.
In Fig. 3 ist die Anwendung der erfindungsgemäßen Einrichtung bei einer Autolackierkabine 14 gezeigt. Der zu lackierende Gegenstand 7 ist in diesem Fall ein Auto. Es steht auf einem luftdurchlässigen Gitterrost, durch den die mit Lackpartikeln 6 ange- reicherte Luft, dargestellt durch die Pfeile 9, nach unten abgesaugt wird. Der Abluftstrom wird in die mit Walzen 4 versehene Einbuchtung 3 gesaugt, wo die Lackpartikel auf das Band 1 aufgewalzt und abgeschieden werden. Zur Reinigung des Bandes 1 und zur Wiedergewinnung des abgeschiedenen Lackes ist eine Abnahmeeinrichtung 13 vorgesehen, die ähnlich wie in Fig. 2 dargestellt aufgebaut sein kann.FIG. 3 shows the use of the device according to the invention in a car painting booth 14. In this case, the object 7 to be painted is a car. It stands on an air-permeable grating through which the air enriched with paint particles 6, represented by the arrows 9, is sucked downwards. The exhaust air stream is sucked into the indentation 3 provided with rollers 4, where the paint particles are rolled onto the belt 1 and separated. To clean the belt 1 and to recover the deposited paint, a removal device 13 is provided, which can be constructed similarly to that shown in FIG. 2.
Bei dem in Fig. 4 dargestellten Ausführungsbeispiel ersetzt die erfindungsgemäße Einrichtung an beliebiger Stelle im Abluftkanal 15, der zu einer nicht dargestellten Absaugeinrichtung führt, den bisher vorgesehenen Filter. In diesem Fall sind korrespondierend zwei endlos umlaufende Bänder 1 angeordnet, zwischen denen ein zickzackförmiger Kanal 16 ausgebildet ist. Durch die zahlreichen Umlenkungen im Kanal 16 prallen die Lackpartikel 6 aufgrund ihrer Trägheit gegen die Bänder 1 und bleiben dort haften.In the embodiment shown in FIG. 4, the device according to the invention replaces the previously provided filter at any point in the exhaust air duct 15, which leads to a suction device, not shown. In this case, two endless belts 1 are arranged correspondingly, between which a zigzag-shaped channel 16 is formed. Due to the numerous deflections in channel 16, the Paint particles 6 due to their inertia against the tapes 1 and stick there.
Zum Reinigen der Bänder 1 sind wiederum Abnahmeeinrichtungen 13 vorgesehen. Die austretende Abluft 10 ist frei von Verunreinigungen. In turn, removal devices 13 are provided for cleaning the tapes 1. The emerging exhaust air 10 is free of impurities.

Claims

P a t e n t a n s p r ü c h e : Patent claims:
1. Verfahren zur Reinigung von mit Lackpartikeln verunreinigter Luft, wobei an dem zu lackierenden Werkstück vorbeitretende Lackpartikel durch eine Absaugeinrichtung abgesaugt werden, dadurch gekennzeichnet, daß der Strom der Absaugluft entlang der äußeren Bandoberfläche zumindest eines endlos umlaufenden Bandes geführt wird, wobei wenigstens ein Teil der in der Absaugluft enthaltenen Lackpartikel auf das umlaufende Band abgeschieden wird.1. A method for cleaning air contaminated with paint particles, wherein paint particles passing by the workpiece to be painted are sucked off by a suction device, characterized in that the flow of the suction air is guided along the outer belt surface of at least one endlessly rotating belt, at least some of which paint particles contained in the suction air is deposited on the circulating belt.
2. Verfahren nach Anspruch 1 , dadurch gekennzeichnet, daß der Strom der Absaugluft in Bandlängsrichtung geführt wird.2. The method according to claim 1, characterized in that the flow of the suction air is guided in the longitudinal direction of the strip.
3. Verfahren nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß an dem zu lackierenden Werkstück vorbeitretende Lackpartikel direkt vom Band aufgefangen werden.3. The method according to claim 1 or 2, characterized in that paint particles passing past the workpiece to be painted are collected directly from the belt.
4. Verfahren nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß das endlos umlaufende Band eine Abnahmeeinrichtung für den aufgenommenen Lack durchläuft, in der der Lack vorzugsweise abgeschabt wird.4. The method according to any one of claims 1 to 3, characterized in that the endlessly circulating belt passes through a removal device for the absorbed paint, in which the paint is preferably scraped off.
5. Verfahren nach Anspruch 4 und 5, dadurch gekennzeichnet, daß die Abscheidung auf das Band an einer Stelle erfolgt, welche nach der Abnahmeeinrichtung und vor der Stelle liegt, an der die Lackpartikel direkt aufgefangen werden.5. The method according to claim 4 and 5, characterized in that the deposition on the belt takes place at a point which is after the removal device and before the point at which the paint particles are collected directly.
6. Einrichtung zur Durchführung des Verfahrens nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, daß die Absaugeinrichtung stromabwärts hinter dem die Lackpartikel (6) aus der Luft abscheidenden Bereich des endlosen Bandes (1) angeordnet ist.6. Device for carrying out the method according to one of claims 1 to 5, characterized in that the suction device is arranged downstream behind the region of the endless belt (1) which separates the paint particles (6) from the air.
7. Einrichtung nach Anspruch 6, dadurch gekennzeichnet, daß das endlose Band (1 ) einen Bereich aufweist, in welchem es etwa U-förmig umgelenkt ist, und daß die Absaugöffnung (2) der Absaugeinrichtung im Grunde der durch die Umlenkung gebildeten Einbuchtung (3) angeordnet ist. 01/662657. Device according to claim 6, characterized in that the endless belt (1) has a region in which it is deflected approximately U-shaped, and in that the suction opening (2) of the suction device is basically the indentation formed by the deflection (3rd ) is arranged. 01/66265
7 8. Einrichtung nach den Ansprüchen 6 oder 7, dadurch gekennzeichnet, daß in dem zur Absaugeinrichtung führenden Abluftstrom mindestens eine Walze (4) angeordnet ist, an deren Oberfläche sich Lackpartikel (6) ablagern können.7 8. Device according to claims 6 or 7, characterized in that in the exhaust air flow leading to the suction device at least one roller (4) is arranged, on the surface of which paint particles (6) can be deposited.
9. Einrichtung nach Anspruch 8, dadurch gekennzeichnet, daß die Oberfläche der Walze (4) an die Außenseite des umlaufenden Bandes (1) anpreßbar ist.9. Device according to claim 8, characterized in that the surface of the roller (4) on the outside of the circulating belt (1) can be pressed.
10. Einrichtung nach Anspruch 8 oder 9, dadurch gekennzeichnet, daß die Walze (4) mit einer elektrischen Erdung versehen sind, und daß eine Einrichtung zur elek- trostatischen Aufladung der von der abgesaugten Luft mitgeführten Lackpartikel (6) vorgesehen ist.10. Device according to claim 8 or 9, characterized in that the roller (4) are provided with an electrical grounding, and that a device for electrostatic charging of the paint particles carried by the extracted air (6) is provided.
11. Einrichtung nach einem der Ansprüche 8 bis 10, dadurch gekennzeichnet, daß die Walze (4) unabhängig vom Band (1) angetrieben ist.11. Device according to one of claims 8 to 10, characterized in that the roller (4) is driven independently of the belt (1).
12. Einrichtung nach einem der Ansprüche 8 bis 11 , dadurch gekennzeichnet, daß mehrere Walzen (4) versetzt zueinander angeordnet sind, um die der Abluftstrom mäanderförmig strömt.12. Device according to one of claims 8 to 11, characterized in that a plurality of rollers (4) are arranged offset from one another, around which the exhaust air stream flows in a meandering manner.
13. Einrichtung nach Anspruch 6 oder 7, dadurch gekennzeichnet, daß das Band (1) in dem die Lackpartikel (6) abscheidenden Bereich zumindest einmal umgelenkt ist.13. Device according to claim 6 or 7, characterized in that the band (1) is deflected at least once in the area separating the paint particles (6).
14. Einrichtung nach Anspruch 13, dadurch gekennzeichnet, daß das Band (1) in dem die Lackpartikel (6) abscheidenden Bereich zickzackförmig geführt ist.14. The device according to claim 13, characterized in that the band (1) in the region separating the paint particles (6) is guided zigzag.
15. Verwendung des Verfahrens nach einem der Ansprüche 1 bis 5 oder der Einrichtung nach einer der Ansprüche 6 bis 14 in einer Autolackierkabine (14). 15. Use of the method according to one of claims 1 to 5 or the device according to one of claims 6 to 14 in a car paint booth (14).
EP01911231A 2000-03-08 2001-03-06 Method and device for purifiying air contaminated by paint partices Withdrawn EP1268085A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
AT0038400A AT408847B (en) 2000-03-08 2000-03-08 METHOD AND DEVICE FOR PURIFYING AIR POLLUTED WITH PAINT PARTICLES
AT3842000 2000-03-08
PCT/AT2001/000062 WO2001066265A1 (en) 2000-03-08 2001-03-06 Method and device for purifiying air contaminated by paint partices

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EP1268085A1 true EP1268085A1 (en) 2003-01-02

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Application Number Title Priority Date Filing Date
EP01911231A Withdrawn EP1268085A1 (en) 2000-03-08 2001-03-06 Method and device for purifiying air contaminated by paint partices

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US (1) US20030145565A1 (en)
EP (1) EP1268085A1 (en)
JP (1) JP2003529446A (en)
AT (1) AT408847B (en)
AU (1) AU4031601A (en)
CA (1) CA2401792A1 (en)
WO (1) WO2001066265A1 (en)

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Also Published As

Publication number Publication date
AT408847B (en) 2002-03-25
JP2003529446A (en) 2003-10-07
US20030145565A1 (en) 2003-08-07
CA2401792A1 (en) 2001-09-13
AU4031601A (en) 2001-09-17
ATA3842000A (en) 2001-08-15
WO2001066265A1 (en) 2001-09-13

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