WO1997014508A1 - Dispositif pour le transport de substances finement reparties se formant lors du traitement de surface d'articles - Google Patents

Dispositif pour le transport de substances finement reparties se formant lors du traitement de surface d'articles Download PDF

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Publication number
WO1997014508A1
WO1997014508A1 PCT/AT1996/000201 AT9600201W WO9714508A1 WO 1997014508 A1 WO1997014508 A1 WO 1997014508A1 AT 9600201 W AT9600201 W AT 9600201W WO 9714508 A1 WO9714508 A1 WO 9714508A1
Authority
WO
WIPO (PCT)
Prior art keywords
wall
gas
medium
outlet openings
air
Prior art date
Application number
PCT/AT1996/000201
Other languages
German (de)
English (en)
Inventor
Michael Eder
Original Assignee
Michael Eder
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 Michael Eder filed Critical Michael Eder
Priority to AU72060/96A priority Critical patent/AU7206096A/en
Publication of WO1997014508A1 publication Critical patent/WO1997014508A1/fr

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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
    • B05B14/40—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
    • B05B14/41—Arrangements for collecting, re-using or eliminating excess spraying material for use in spray booths by cleaning the walls of the booth
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B16/00—Spray booths
    • B05B16/40—Construction elements specially adapted therefor, e.g. floors, walls or ceilings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B13/00—Machines or plants for applying liquids or other fluent materials to surfaces of objects or other work by spraying, not covered by groups B05B1/00 - B05B11/00
    • B05B13/02—Means for supporting work; Arrangement or mounting of spray heads; Adaptation or arrangement of means for feeding work
    • B05B13/04—Means for supporting work; Arrangement or mounting of spray heads; Adaptation or arrangement of means for feeding work the spray heads being moved during spraying operation
    • B05B13/0447—Installation or apparatus for applying liquid or other fluent material to conveyed separate articles
    • B05B13/0452—Installation or apparatus for applying liquid or other fluent material to conveyed separate articles the conveyed articles being vehicle bodies
    • 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
    • B05B14/48—Arrangements for collecting, re-using or eliminating excess spraying material for use in spray booths specially adapted for particulate material

Definitions

  • the invention relates to a device for the transport of finely distributed media occurring during the surface treatment of objects along at least one wall.
  • the object of the invention is therefore to provide a device for transporting finely divided media, with which the medium (in particular overspray) can be collected or transported without causing annoying deposits.
  • the wall has outlet openings distributed over it, through which gas emerges to form a gas cushion which keeps the medium away from the wall.
  • the invention provides for one in the area of the wall
  • the gas cushion does not have to move in the main flow along the wall
  • a device for generating a gas flow can be, for example, a large extraction system of an air-conditioned spray painting booth. But it is also possible that the separate device for generating a gas flow comprises nozzles, which in turn can be attached in or on the wall, but which are of the
  • Outlet openings for generating the gas cushion are different.
  • the gas cushion moves in the main flow direction and thus also assumes a transport function in addition to the holding function from the wall.
  • the gas flowing out of the outlet openings forms a gas flow with a flow component directed directly along the wall.
  • a closed gas curtain (moving gas cushion) can be achieved, which flows along the wall and entrains the finely divided media particles before they hit the wall.
  • FIG. 1 and 2 each show perspective exemplary embodiments of essentially cuboid wall sections of a device according to the invention
  • FIG. 3 shows a schematic perspective of a tubular wall section
  • FIGS. 4a to 8a show a partial plan view of exemplary embodiments of wall sections according to the invention, which show FIGS. 4b to 8b 9 shows a section along the line AA of FIG. 10 of an exemplary embodiment of a paint spray booth designed according to the invention
  • FIG. 10 shows a plan view of this paint spray booth
  • FIG. 11 shows a schematic sectional view of a separating device at the end of the Transport route
  • FIG. 12 shows a closed paint spray booth with a device according to the invention for removing the overspray
  • FIG. 13 shows a schematic section of part of an exemplary embodiment of an inventive device n Device for transporting finely distributed media
  • FIG. 13a shows part of the wall of FIG. 13 on an enlarged scale
  • FIGS. 14, 15, 16 and, 17 show further embodiments in a sectional view
  • FIGS. 14a, 15a, 16a being enlarged representations 18 shows a schematic plan view of a further exemplary embodiment of a device according to the invention
  • FIG. 19 shows a further exemplary embodiment in a vertical section
  • FIGS. 20 and 21 likewise show further exemplary embodiments in a horizontal section and a vertical section which FIG. 22 shows a further embodiment in a vertical section
  • FIG. 22 shows the associated top view
  • the wall sections shown in FIGS. 1 and 2 have a cuboid shape and are essentially hollow on the inside. Gas which is under pressure can be introduced into the interior of the wall sections 1 via a supply line 2, for example air required via a pump standing gas now emerges from the many outlet openings 3 distributed over wall 1 a As will be explained in more detail, these outlet openings are arranged and aligned such that the outflowing gas results in a gas stream 4 which is directed essentially directly along the wall surface and which gives the finely divided medium
  • FIGS. 1 and 2 differ in that, in the exemplary embodiment according to FIG. 1, the rear side, which is not visible in the illustration, is completely closed with respect to side 1a, while in FIG. 2, exit openings are also provided on the rear side 1a ' result in a gas flow 4 in the opposite direction to the front
  • the exemplary embodiment shown in FIG. 3 is a tubular wall section which has a plurality of outlet openings 3 in the interior.
  • the gas outlet from the outlet openings 3 can form an angle with the axis 5 of the tube, so that there is a helical gas movement in the interior of the tube
  • FIGS. 1 to 3 which are preferably made of metal and / or plastic, the most varied spatial structures, in particular multi-sided closed paint spray booths, can be assembled in the manner of a modular construction, as will be explained with reference to FIGS. 9 and 10
  • FIGS. 4a to 8b In order to be able to achieve a gas flow directed directly along the wall surface, there are several possibilities, some of which are shown in FIGS. 4a to 8b
  • lamellae 7 can also be provided, at the ends 7a of which slit-shaped outlet openings 3 are provided.
  • the scales 6 or the lamellae 7 are favorably formed in one piece with the rest of the wall surface. They can already be provided during the initial production or can be subsequently formed by impressing
  • 9 and 10 show a spray painting booth with a device according to the invention for transporting the overspray
  • the spray painting booth is essentially made up of cuboid wall sections 1. Via the connecting piece 12, air under pressure is blown into the interior 1 b of the wall sections 1. This air is distributed along the dash-dotted line in FIG. 9, whereby it passes through wall openings 13 from wall section to wall section as an alternative it would of course be possible to supply air to each individual wall section separately under excess pressure
  • the air under pressure now flows out of the interior 1 b of the wall sections 1 via the numerous outlet openings 3 which form a closed air curtain (moving air cushion), which entrains the overspray and essentially without touching the wall, first into the vertical duct 14 and then dissipates in the horizontal channel 15
  • the air is brought outside to the necessary overpressure by a pump 15, from where it reaches the interior of the wall elements 1 via lines 16, 12 and 12 '
  • the air is heated via a heating device 17 to a temperature of, for example, between 60 ° C. and 100 ° C. This ensures that the overspray is immediate dries and then loses its affinity for investing on the transport route. It is therefore essentially tubular shaped horizontal section 15 no longer necessary to use heated air
  • Air can be supplied unheated via the pipe 12 '
  • a dry working separator 18 in the form of a cyclone is arranged, which can be configured, for example, as in FIG. 11 fail
  • the air can reach the pump 15 via a filter 21 and the line 22.
  • a fresh air supply 23 can also be arranged in the line 22. This makes it possible, on the one hand, to circulate the air and, on the other hand, in principle the particles in the container 20 again to recycle
  • the exemplary embodiment shown in FIG. 12 is an automatic paint spray booth as used, for example, in the automotive industry.
  • the excess paint particles can be removed below the grate 9 'through wall sections 1 designed according to the invention
  • the air flow in the tubular sections of a device according to the invention can either be caused only by the air flowing out of the outlet openings 3.
  • Air is advantageously suitable as the gas, but other gases, for example nitrogen or other inert gases, can also be used for special applications
  • the wall 1 is designed in a stepped manner.
  • the wall is designed as a perforated plate which has a scale structure, such as is shown in FIGS. 7a and 7b
  • This design results in a leading directly along the wall area 1 c Gas flow, which, however, does not have the primary task here of transporting finely divided media in the main direction of movement 23, but rather that
  • the task is to form an air cushion that separates the finely divided media from the
  • Regions 1c are arranged substantially vertical regions 1d These nozzles
  • exit ducts 24 are provided in the wall, which exit into the outlet openings 3. These exit ducts 24 run obliquely to the normal on the wall surface through the wall and thus lead to a slightly moving air cushion
  • the air flows out of the outlet openings 3 without a preferred directional component in the direction of the main transport direction 25 Rather, the gas flowing out through the outlet openings 3 serves essentially only to form a gas cushion which keeps the medium from the wall 1
  • the separate nozzles 23 are provided for the transport function
  • the exit channels 24 are flared.
  • the embodiment shown in FIGS. 16 and 16a are cylindrical exit channels 24 that are perpendicular to the wall surface.
  • the wall partially exists made of air-permeable material, for example foam, sintered material, fleece, felt or fabric (tissue). The outlet openings are then the finely distributed pores of this material 26
  • a device for transporting finely divided media is provided with a device 27 (here a gun for wet paint Spray painting) combined to apply media to a surface, the
  • the collecting function is essentially achieved in that the sections of the wall in the entrance area converge towards one another in a funnel shape, i. H. that the cross-sectional area A is transverse to
  • Main transport direction 25 tapers in the transport channel 30 thus formed.
  • the exemplary embodiment shown in FIG. 18 furthermore has a separating device, generally designated 31, for separating the transported medium (overspray) from gas (air).
  • this separating device essentially consists of a belt 33 endlessly guided by rollers 32 and a device 34a, 34b for removing the medium from this belt 33.
  • this device for removing is made in two parts.
  • the strips 34a resting on the strip initially form a track which is narrower than the strip width and which is then removed from the strip by the actual removal strip 34b and can be collected, for example, in a collecting pot.
  • Such a separation device can be constructed, for example, as described in international application WO 94/02254, the belt 33 being arranged such that it essentially forms part of the wall of the transport surface 30.
  • blowing nozzles 23 ' are provided which blow air supplied via a blower 36 and a supply air duct 37 into the transport duct 30 transversely to the main flow direction there.
  • the wall 1 according to the invention is provided with numerous outlet openings 3 through which air is blown in to form an air cushion, the air cushion preventing the medium from adhering to the fixed wall 1 and thus at least a large part of the medium being able to be caught by the belt 33.
  • blowers 36, 36 ' are for example Two blowers 36, 36 'are provided, which pass through the respective supply air channels 37, 37'
  • a large-sized suction system 28 is provided for generating a gas flow in the main transport direction 25.
  • blow nozzles 23 can also be provided in the wall, such as, for example, in the exemplary embodiments in FIGS 17 are shown
  • the exhaust air from the exhaust air duct can be returned to the supply air blowers 36, 36 'via a return line (not shown), a filter in this return line being able to remove any remaining amounts of the medium
  • FIG. 19 The embodiment shown in FIG. 19 is a painting booth 40, in which the overspray is discharged downward, for example, through a grate 39.
  • the air laden with the medium is brought together, the air cushion produced according to the invention preventing the walls from sticking to it Medium is then collected by a circulating belt 33 and removed from it via the device 34a, 34b
  • the medium is collected via a rotating roller 35 from the surface of which, by means of scrapers or the like (not shown), the absorbed medium can be removed again
  • painting can be carried out automatically via a spraying system 42 or manually via a spray gun 27.
  • the supply air is fed into the spray booth 40 from above via filter 41.
  • the air loaded with the overspray is discharged downwards, the walls tapering towards one another in a funnel shape and supplying the medium (overspray) to the removal device 31.

Landscapes

  • Details Or Accessories Of Spraying Plant Or Apparatus (AREA)

Abstract

L'invention a pour objet un dispositif pour le transport de substances finement réparties, se formant lors du traitement de surface d'articles, le long d'au moins une paroi. Conformément à l'invention, des ouvertures (3) sont réparties sur toute la paroi (1), ouvertures au travers desquelles le gaz s'échappe avec formation d'un tampon gazeux maintenant la substance à distance de la paroi (1).
PCT/AT1996/000201 1995-10-18 1996-10-18 Dispositif pour le transport de substances finement reparties se formant lors du traitement de surface d'articles WO1997014508A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU72060/96A AU7206096A (en) 1995-10-18 1996-10-18 Device for transporting finely distributed media produced during the surface treatment of articles

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ATA1732/95 1995-10-18
AT173295 1995-10-18

Publications (1)

Publication Number Publication Date
WO1997014508A1 true WO1997014508A1 (fr) 1997-04-24

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/AT1996/000201 WO1997014508A1 (fr) 1995-10-18 1996-10-18 Dispositif pour le transport de substances finement reparties se formant lors du traitement de surface d'articles

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AU (1) AU7206096A (fr)
WO (1) WO1997014508A1 (fr)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19820432A1 (de) * 1998-05-07 1999-11-11 Voith Sulzer Papiertech Patent Verfahren und Vorrichtung zum Aufbringen eines Auftragsmediums auf einen laufenden Untergrund
WO2001066265A1 (fr) * 2000-03-08 2001-09-13 Brain Flash-Patententwicklungs Gmbh Procede et dispositif pour purifier de l'air pollue par des particules de peinture
DE20305947U1 (de) 2003-04-11 2003-06-18 J. Wagner AG, Altstätten Vorrichtung zur Reinigung einer Pulverbeschichtungskabine und Pulverbeschichtungskabine mit Reinigungsvorrichtung
EP1312420A3 (fr) * 2000-03-31 2007-06-27 Nordson Corporation Système de revêtement par poudrage
EP1527824A3 (fr) * 2003-10-28 2009-07-29 Symach S.r.l. Amélioration pour cabines de pulverisation et stations de séchage
US7997963B2 (en) 2000-03-31 2011-08-16 Nordson Corporation Powder coating systems
EP2505268A1 (fr) 2005-10-05 2012-10-03 Dürr Systems GmbH Dispositif et procédé de séparation de pulvérisations de laque mouillée
DE102012214321A1 (de) * 2012-08-10 2014-05-22 Gema Switzerland Gmbh Beschichtungskabine zum Beschichten von Werkstücken
US9643118B2 (en) 2005-03-24 2017-05-09 Durr Systems, Inc. Device for removing wet paint overspray

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH560558A5 (en) * 1973-10-31 1975-04-15 Elfag Holding Electrostatic spray coater booth - air curtain over inwall leads out to blower suction-side outlet
CH564376A5 (en) * 1974-02-01 1975-07-31 Elfag Holding Electrostatic powder coating chamber with protected wall - non-turbulent air curtain blown in through microporous surface
WO1979000478A1 (fr) * 1978-01-05 1979-07-26 J Toff Cabine pour le revetement par pulverisation electrostatique de poudre
DE3024130A1 (de) * 1980-06-27 1982-02-25 ESB Elektrostatische Sprüh- und Beschichtungsanlagen G.F. Vöhringer GmbH, 7758 Meersburg Langgestreckte spruehkabine zum pulverbeschichten von werkstuecken
DE8704614U1 (de) * 1987-03-27 1987-10-01 Richter, Klaus J., 7910 Neu-Ulm Kabine zum elektrostatischen Auftrag von Pulver
US4787330A (en) * 1987-12-22 1988-11-29 Bolf Carl R Self-cleaning powder coating booth
DE9320763U1 (de) * 1993-11-11 1995-01-19 Eisenmann Maschinenbau KG (Komplementär: Eisenmann-Stiftung), 71032 Böblingen Auffangvorrichtung für Overspray in Spritzkabinen
US5397394A (en) * 1993-09-09 1995-03-14 The Fishing Group Powder coating booth

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH560558A5 (en) * 1973-10-31 1975-04-15 Elfag Holding Electrostatic spray coater booth - air curtain over inwall leads out to blower suction-side outlet
CH564376A5 (en) * 1974-02-01 1975-07-31 Elfag Holding Electrostatic powder coating chamber with protected wall - non-turbulent air curtain blown in through microporous surface
WO1979000478A1 (fr) * 1978-01-05 1979-07-26 J Toff Cabine pour le revetement par pulverisation electrostatique de poudre
DE3024130A1 (de) * 1980-06-27 1982-02-25 ESB Elektrostatische Sprüh- und Beschichtungsanlagen G.F. Vöhringer GmbH, 7758 Meersburg Langgestreckte spruehkabine zum pulverbeschichten von werkstuecken
DE8704614U1 (de) * 1987-03-27 1987-10-01 Richter, Klaus J., 7910 Neu-Ulm Kabine zum elektrostatischen Auftrag von Pulver
US4787330A (en) * 1987-12-22 1988-11-29 Bolf Carl R Self-cleaning powder coating booth
US5397394A (en) * 1993-09-09 1995-03-14 The Fishing Group Powder coating booth
DE9320763U1 (de) * 1993-11-11 1995-01-19 Eisenmann Maschinenbau KG (Komplementär: Eisenmann-Stiftung), 71032 Böblingen Auffangvorrichtung für Overspray in Spritzkabinen

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19820432A1 (de) * 1998-05-07 1999-11-11 Voith Sulzer Papiertech Patent Verfahren und Vorrichtung zum Aufbringen eines Auftragsmediums auf einen laufenden Untergrund
US6248407B1 (en) 1998-05-07 2001-06-19 Voith Sulzer Papiertechnik Gmbh Method for applying a coating medium onto a moving surface
US6503325B1 (en) 1998-05-07 2003-01-07 Voith Sulzer Papiertechnik Patent Gmbh Device and method for applying a coating medium onto a moving surface
WO2001066265A1 (fr) * 2000-03-08 2001-09-13 Brain Flash-Patententwicklungs Gmbh Procede et dispositif pour purifier de l'air pollue par des particules de peinture
EP1312420A3 (fr) * 2000-03-31 2007-06-27 Nordson Corporation Système de revêtement par poudrage
US7997963B2 (en) 2000-03-31 2011-08-16 Nordson Corporation Powder coating systems
US6997991B2 (en) 2003-04-11 2006-02-14 J. Wagner Ag Device for cleaning a powder coating booth and powder coating booth with cleaning device
DE20305947U1 (de) 2003-04-11 2003-06-18 J. Wagner AG, Altstätten Vorrichtung zur Reinigung einer Pulverbeschichtungskabine und Pulverbeschichtungskabine mit Reinigungsvorrichtung
EP1527824A3 (fr) * 2003-10-28 2009-07-29 Symach S.r.l. Amélioration pour cabines de pulverisation et stations de séchage
US9643118B2 (en) 2005-03-24 2017-05-09 Durr Systems, Inc. Device for removing wet paint overspray
EP2258485B2 (fr) † 2005-03-24 2020-05-20 Dürr Systems AG Dispositif de séparation de pulvérisations de laque humide
EP2505268A1 (fr) 2005-10-05 2012-10-03 Dürr Systems GmbH Dispositif et procédé de séparation de pulvérisations de laque mouillée
EP2505268B1 (fr) 2005-10-05 2017-02-01 Dürr Systems AG Dispositif et procédé de séparation de pulvérisations de laque mouillée
EP1931480B2 (fr) † 2005-10-05 2020-09-30 Dürr Systems AG Dispositif et procede destines a separer la peinture humide perdue lors de la pulverisation
DE102012214321A1 (de) * 2012-08-10 2014-05-22 Gema Switzerland Gmbh Beschichtungskabine zum Beschichten von Werkstücken

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Publication number Publication date
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