EP0135200B1 - Cabine de pulvérisation comportant une installation d'épuration à circulation forcée - Google Patents

Cabine de pulvérisation comportant une installation d'épuration à circulation forcée Download PDF

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Publication number
EP0135200B1
EP0135200B1 EP84111210A EP84111210A EP0135200B1 EP 0135200 B1 EP0135200 B1 EP 0135200B1 EP 84111210 A EP84111210 A EP 84111210A EP 84111210 A EP84111210 A EP 84111210A EP 0135200 B1 EP0135200 B1 EP 0135200B1
Authority
EP
European Patent Office
Prior art keywords
air
spray
booth
fact
painting
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
EP84111210A
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German (de)
English (en)
Other versions
EP0135200A2 (fr
EP0135200A3 (en
Inventor
Klemens Beierling
Hans-Jürgen Beierling
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.)
RMG-Beierling GmbH
Original Assignee
RMG-Beierling GmbH
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Filing date
Publication date
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Application filed by RMG-Beierling GmbH filed Critical RMG-Beierling GmbH
Priority to AT84111210T priority Critical patent/ATE35632T1/de
Publication of EP0135200A2 publication Critical patent/EP0135200A2/fr
Publication of EP0135200A3 publication Critical patent/EP0135200A3/de
Application granted granted Critical
Publication of EP0135200B1 publication Critical patent/EP0135200B1/fr
Expired legal-status Critical Current

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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
    • B05B16/00—Spray booths
    • B05B16/20—Arrangements for spraying in combination with other operations, e.g. drying; Arrangements enabling a combination of spraying operations

Definitions

  • the invention relates to a device for applying coating media, e.g. Paint on objects that are conveyed one after the other through several adjoining painting chambers through which an air flow is forcibly guided, the exhaust air of which is in each case passed through a paint particle separating device by means of fans and then the painting chamber adjoining in the conveying direction of the objects and from the last painting chamber for removal the organic liquid vapors is fed to a cleaning system.
  • coating media e.g. Paint on objects that are conveyed one after the other through several adjoining painting chambers through which an air flow is forcibly guided, the exhaust air of which is in each case passed through a paint particle separating device by means of fans and then the painting chamber adjoining in the conveying direction of the objects and from the last painting chamber for removal the organic liquid vapors is fed to a cleaning system.
  • a painting device with several painting chambers is known, to which an air flow is applied, which is led from painting chamber to painting chamber.
  • the exhaust air is guided by a fan over a guard and filter device and fed to the following painting chamber.
  • the total air flow that is required in a painting chamber determines the required air volume flow through the entire device, so that the solvent saturation of the exhaust air at the end of the device that is fed to the cleaning system results from this air flow and the paint consumption, in practice only one insufficient degree of saturation for economical combustion of exhaust air can be achieved.
  • the solution to the problem is that in each painting chamber at least two ventilation zones are arranged next to one another in the conveying direction of the objects and that the exhaust air from the ventilation zone on the inlet side in the conveying direction of the objects is in each case via a further paint particle separating device by a fan of the outlet-side ventilation zone in the same painting chamber as Another air stream is supplied for this painting chamber and the exhaust air of a painting chamber, which is fed to the subsequent one, is taken from the ventilation zone on the outlet side and the inlet side of the subsequent painting chamber is fed and the exhaust air is fed to the last ventilation zone of the cleaning device and that an inlet air stream is ventilation zone on the inlet side of the first painting chamber is fed, which is lower in relation to the exhaust air flow of this ventilation zone, so that on the inlet side a lower suppression uck exists and another fresh air stream enters through the entrance.
  • An advantageous embodiment of the device consists of the fact that the air is so often passed through the painting and / or evaporation system as circulating air, the exhaust air discharge being metered in such a way that the maximum solvent concentration reaches the permissible explosion safety concentration, and the number of Circulations in connection with the respective zone width is selected so that the air speed in the painting zones corresponds to a predetermined value and the explosion safety concentration limit is not exceeded in any area.
  • the device offers the advantageous possibility of directly combusting the exhaust air, which is highly enriched with solvent vapor, without preheating and of supplying the heat released to the drying process.
  • the amount of heat is so great that no further heating energy has to be added to a downstream drying system.
  • the color particle separation device is advantageously designed as a washing, filtering and drying device.
  • the constant removal and washing out of the paint mist from the air has the advantage on the one hand that hardly flammable and difficult to remove deposits of dye form in the painting zone and that in particular with multiple or Multi-color paints no mixing or overlapping of the colors occur.
  • Safety circuits on the operating units and accesses enable safe operation and safe inspection of the systems.
  • a maintenance and operating station and the control device are advantageously designed to be explosion-proof and are arranged in the vicinity outside the systems. This has advantageously made it possible to significantly reduce the size of the coating chamber, which in turn has reduced the air throughput compared to conventional chambers, which leads to correspondingly small circulating air and air purification systems.
  • 1 and 4 show exemplary embodiments for high-performance barrel painting devices for single-color and two-tone painting.
  • the size of the painting chambers has only been selected so that sporadic manipulation of the barrel spray chairs is possible.
  • the spray chairs are moved out of the paint chambers. This enables a high concentration of solvents in the circulating air of the painting chamber, since an operator does not have to be in this zone all the time.
  • the amount of air that has been reduced to a minimum and which is aimed specifically at the spray chairs in order to avoid a fog of paint during spraying has been reduced to an acceptable, technically possible minimum. This air is constantly filtered and washed out in order to be cleaned of adhering paint particles before being blown into the paint chamber in order to avoid any loss of quality on the painted surfaces.
  • the air is used five times, for example - there is a constant increase in temperature in order to avoid condensation of the moisture from the washed-out air on the barrel.
  • the solvents released in the painting area are absorbed into the air.
  • the proportion of the supply air that cannot be taken in as fresh air in the furnace is fed directly to the thermal exhaust air purification system as fresh air via a bypass line with a separate fan. It has been made possible to supply the entire circulating air required in the painting process with the solvents escaping from the paint both in the painting zone and in the evaporation zone to the furnace and thus also to the thermal exhaust air purification.
  • a horizontal one can also be selected.
  • dry filters are suitably used for the separation of color particles.
  • the adjacent outlet or inlet is operated by a directional nozzle with circulating air, as shown at the transition to the evaporation system, and the amount of exhaust air from the adjacent zone is increased compared to the supply air, so that a certain amount of fresh air enters or the solvent vapor leaves is kept away from this zone.
  • FIG. 1 schematically shows a painting chamber 10 and an evaporation system 30 in which the paint 11, barrels, clocked from production to production, passes from left to right and is then passed directly into a drying oven.
  • the color particle separation device 12a, b are washing towers which are arranged laterally offset to the passage of the barrels 11, as can be seen correspondingly from the horizontal section Fig. 3 line A-A.
  • the barrel 11 is surrounded on all sides from top to bottom by air currents V4a, b at a speed of approximately 0.5 m / s.
  • air currents V4a, b at a speed of approximately 0.5 m / s.
  • These air flows totaling 6000 m 3 / h are composed of the fresh air flow V3 of 2500 m 3 / h and a circulating air flow V2 of 3500 m 3 / h and are preheated by fans 21, 19a via heating registers 22, 24 and via distributor filters 23, 25 supplied to the painting chamber 10.
  • a fresh air stream V1 with 100 m 3 / h is additionally drawn in through the entrance of the painting chamber, since the throughput of the circulating air fan 19a is designed to be higher than that of the fresh air fan 21, so that no solvent vapors escape from the painting chamber 10.
  • the fresh air V3 is supplied on the side of the entrance.
  • the circulating air V2 coming from the entrance and the least loaded is drawn off in the entrance half of the chamber bottom 14.
  • a further air flow V5 of -5000 m 3 / h is drawn off through the right chamber bottom 14 by the fan 19b and, according to the position of an adjustable throttle valve 31 in a partial flow V6, is blown from the evaporation chamber 30 through the passage opening to the painting chamber 10 via a directional nozzle 34 and pressed into the evaporation chamber in a second partial flow V7 of 3500 m 3 / h.
  • the circulating air streams V2, V5 are each guided through color particle separating devices, washing towers 12a, 12b.
  • the air passes through a grate 14 at the bottom of the chamber and sweeps over the sump 13 to the edge 13b of the wash tower, which is led to the level 13a of the sump surface, which is constantly held by a guard, thereby passing the air under the edge in a vortex, also called a water roller 15, passes into the tower 12a, b and the ink drops are washed out.
  • the water droplets absorbed by the air are then separated out on the baffle plates 16 and the perforated filter 17 and other filters.
  • the cleaned air is then heated in the heating register 24 above the dew point to such an extent that no condensation occurs during the expansion in the following chamber pass.
  • the water in the sump 13 contains a coaling agent for paint mist.
  • FIG. 2 Further details are shown in FIG. 2, in which similarly equipped painting chambers are arranged one behind the other, the exhaust air from the first painting chamber being passed twice through the second painting chamber.
  • the reference numerals are chosen accordingly as in Fig. 1 and partially differentiated by attached letters.
  • Transport rails 40 on which the barrels roll from one spraying station to the other, run through the painting chambers 10a, b.
  • the barrels are stored on barrel chairs 41 and are driven by rollers 42, so that they are uniformly painted on all sides. In the present case, different colors are applied (in separate strips) in the two painting chambers. A sharp demarcation is made by stencils near the barrels (not shown) and the removal of the paint mist through the air.
  • the barrel chairs are mounted on rollers 62 with rollers 63 and can be moved out of the painting chambers for operating and maintenance purposes.
  • the barrels After painting, the barrels are set up and transferred to a roller conveyor 43 and transported in cycles through the evaporation system until they are conveyed into the drying oven by the conveyor belt 44.
  • each fan 19a, b, c there is a ventilation flap 50 which can be controlled by a signal S19 and which, in the event that cleaning of the system is necessary, allows rapid ventilation into the exhaust air pipes 51.
  • the position of the flaps is communicated to the control device 70 by detectors via signal lines M50.
  • FIG. 3 there is a horizontal crack of the system of Fig. 2, from which it can be seen that the 4 washing towers 12a to d are alternately laterally offset from the painting chambers and the transport route of the barrels.
  • the air duct 64 effect the assignment of the air emerging from the respective zone below to the associated wash tower.
  • safety doors 61 are attached, which can be opened from the inside at any time and from the outside only when the door lock is released by a control signal S61 from the control device 70.
  • all the doors 61 are monitored by a closing control, the signal M61 of which is evaluated in the control device 70.
  • the control device is arranged in a cabinet next to the painting chambers between the maintenance areas of the spray chairs. It carries a control panel and control panel 73, from which the functions of the spray guns, the transport drives, the fans and flap drives are controlled and the alarm signals are received via the compressed air lines and cables 72.
  • the cabinet is airtight and supplied with compressed air from outside the safety zone 63 via a pressure regulator 74 and monitored by a pressure switch, so that no air containing solvent can enter it and explosions cannot be ignited.
  • the step-by-step roller conveyor 43 transfers four times in parallel to a correspondingly slower roller conveyor 45, on which the solvent is largely evaporated.
  • control device 70 is shown schematically. It is connected to the control display and control panel 73 and is clocked by a clock C. Furthermore, the control device receives the message signals Mx, which are emitted by the modules indicated by the associated reference symbols, and emits the control signals Sx, which are also identified by corresponding reference symbols.
  • spraying is stopped via signal SS and the vent is opened via signal S50.
  • the fans remain active via signals S19 and S32. If working for a specified safety time is determined via signals M19, M32, the door locks are released via signal S61.
  • the pressure regulator 74, the transport drives, the throttle valves 31, 33 and the water level 13a are controlled or regulated and monitored via the signals M74, MT, M31, M33, M13a and the associated signals S74, ST, S31, S33, S13a , which ensures a completely safe operation of the system.

Landscapes

  • Details Or Accessories Of Spraying Plant Or Apparatus (AREA)
  • Catching Or Destruction (AREA)
  • Filtering Of Dispersed Particles In Gases (AREA)
  • Sampling And Sample Adjustment (AREA)
  • Devices For Medical Bathing And Washing (AREA)
  • Spray Control Apparatus (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)
  • Air-Conditioning For Vehicles (AREA)
  • Coating Apparatus (AREA)

Claims (7)

1. Cabine de pulvérisation de produits de revêtement, par exemple vernis, peinture, sur des objets (11) transportés, les uns après les autres, à travers plusieurs chambres de laquage (10, 10a, 10b) se faisant suite, et dans lesquelles passe un courant d'air (V4a) à circulation forcée, l'air sortant (V5, V7) de ces chambres étant conduit à travers une installation de séparation des particules de peinture respective (12a, 12c) à l'aide de ventilateurs (19c, 19d), puis à la chambre de laquage suivante (10b) dans le sens du déplacement des objets (11), puis de la dernière chambre de laquage (10b) à une installation d'épuration aux fins d'élimination des vapeurs de liquides organiques, la cabine de pulvérisation étant caractérisée par le fait que chaque chambre de laquage (10, 10a, 10b) comprend au moins deux zones de ventilation contiguës dans le sens de déplacement des objets (11) et que l'air sortant (V3) de la zone de ventilation côté entrée est conduite, à l'aide d'un ventilateur (19a, 19d), dans le sens de déplacement des objets (11) à la zone de ventilation côté sortie de la même chambre de laquage (10, 10a, 10b) en tant qu'air supplémentaire (V4b) de la chambre de laquage en question (10, 10a, 10b), en passant, chaque fois, à travers une autre installation séparatrice de particules de peinture (12a, 12d), et que l'air sortant de l'une des chambres de laquage (10a) vient s'ajouter à l'air de la chambre suivante, amené de la zone de ventilation côté sortie de cette chambre à la zone de ventilation côté entrée de la chambre de laquage suivante (10b) et que l'air d'échappement (V10, V11) de la dernière zone de ventilation est conduit au dispositif de nettoyage, un courant d'air (V3) étant amené à la zone d'aération côté entrée de la première chambre de laquage (10, 10a), lequel courant d'air est plus faible que le courant d'air sortant (V2) de cette zone de ventilation, de sorte qu'il existe une faible dépression côté entrée et qu'un autre courant d'air frais (V1) pénètre par l'entrée.
2. Dispositif selon spécification 1, caractérisé par le fait que l'installation de séparation de particules de peinture (12a, 12b, 12c, 12d) consiste en une installation de lavage pourvue d'un tambour à eau (15), de séparateurs d'eau, tels que tôles chicanes (16), filtres perforés (17) et/ou filtres fibreux (18), en aval de laquelle un ventilateur (19a, 19b) est connecté, ventilateur dont la tuyauterie d'air côté sortie conduit à une armoire de distribution (20) contenant un registre de chauffage (24) assurant l'échauffement de l'air à une température respective supérieure au point de rosée déterminant pour chacune des chambres de laquage (10a, 10b) ou zone dentilation.
3. Dispositif selon spécification 1, caractérisé par le fait qu'une installation d'évaporation (30) à passage ouvert est raccordée à la dernière chambre de laquage dans le sens de marche (10b), et que l'air d'échappement (V5) sortant de la dernière chambre de laquage (10, 10b) est conduit à l'installation d'évaporation (30), en passant par l'installation de séparation de particules de peinture (12b), un courant partiel d'air (V6) étant conduit par l'intermédiaire d'un papillon réglable (31) et une buse (34), dirigée dans l'installation d'évaporation (30), de préférence d'en haut, contre le passage, à partir de la chambre de laquage (10), l'air sortant (V10, V11) de l'installation d'évaporation (30) étant conduit à l'installation de combustion.
4. Dispositif selon spécification 3, caractérisé par le fait qu'un ventilateur aspirant (32) est raccordé à l'installation d'évaporation (30), ventilateur (32) dans la conduite de départ duquel un clapet de répartition (33) est disposé, répartissant le courant d'air (V8) dans une conduite de circulation d'air et d'échappement d'air.
5. Dispositif selon l'une des spécifications précédentes, caractérisé par le fait que des volets d'évacuation d'air réglables (50) sont disposés dans les conduites de circulation d'air, lesquels, en position de purge d'air, interrompent la circulation du courant d'air et le conduisent dans une conduite d'évacuation (51), et que les volets d'évacuation d'air (50) sont équipés de signalisateurs de position.
6. Dispositif selon l'une des spécifications précédentes, caractérisé par le fait que dans chacune des chambres de laquage (10, 10a, 10b), un dispositif de laquage, de préférence une chaise pour fût (41), se trouve disposé en position de travail, étant équipé d'un entraînement (42) pour un fût, et logé dans des rouleaux (63) sur des rails (64) conduisant, par une porte de sécurité (61), disposée dans la paroi de la chambre, à une station d'entretien, située à côté de la chambre de laquage (10).
7. Dispositif selon spécification 6, caractérisé par le fait qu'à côté de la station d'entretien des dispositifs de laquage (41), un dispositif de commande (70) avec pupitre d'affichage et de manoeuvre (73) est disposé, laquelle est reliée aux dispositifs réglables (31, 33, 61, 50), aux dispositifs de transport (40, 43, 44), aux entraînements (42) et aux dispositifs de pulvérisation, par l'intermédiaire de conduites de commande (Sx) et de conduites d'enregistrement (Mx), à l'aide de câbles et ou de conduites à air comprimé (72), ainsi que reliée à une horloge (C), et étant logée dans une armoire étanche à l'air, armoire dans laquelle se trouve un contrôleur automatique de pression (75) relié également au dispositif de commande (70) par une ligne d'enregistrement (M75), et que l'espace intérieur de l'armoire est relié, par l'intermédiaire d'un régleur de pression (74), à une conduite à air comprimé (71), conduite, de l'extérieur, à la limite explosive, et que le dispositif de pulvérisation n'est libéré par le signal de commande (SS) que si les signaux d'avertissement (M50, M61, M19, M32, M75, M13a) annoncent l'état connecté des volets d'évacuation d'air (50) et des portes de sécurité (61) et la marche des ventilateurs (19a, 19b, 19c, 19d; 32) ainsi que pression dans l'armoire (70) et présence du niveau d'eau (13a).
EP84111210A 1983-09-22 1984-09-20 Cabine de pulvérisation comportant une installation d'épuration à circulation forcée Expired EP0135200B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT84111210T ATE35632T1 (de) 1983-09-22 1984-09-20 Lackier- und abdunstanlage mit umluftbelueftung.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3334257A DE3334257C1 (de) 1983-09-22 1983-09-22 Lackier- und Abdunstanlage mit Umluftbelueftung
DE3334257 1983-09-22

Publications (3)

Publication Number Publication Date
EP0135200A2 EP0135200A2 (fr) 1985-03-27
EP0135200A3 EP0135200A3 (en) 1985-09-25
EP0135200B1 true EP0135200B1 (fr) 1988-07-13

Family

ID=6209767

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84111210A Expired EP0135200B1 (fr) 1983-09-22 1984-09-20 Cabine de pulvérisation comportant une installation d'épuration à circulation forcée

Country Status (11)

Country Link
US (1) US4587927A (fr)
EP (1) EP0135200B1 (fr)
JP (1) JPS6090068A (fr)
AT (1) ATE35632T1 (fr)
CA (1) CA1217334A (fr)
CS (1) CS713884A2 (fr)
DD (1) DD229613A5 (fr)
DE (2) DE3334257C1 (fr)
DK (1) DK448184A (fr)
ES (1) ES536083A0 (fr)
ZA (1) ZA847110B (fr)

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DE3824131A1 (de) * 1988-07-15 1990-01-18 Krapf & Lex Lackieranlage mit energieverwertung
EP0371171A1 (fr) * 1988-11-30 1990-06-06 Aermeccanica Biondi s.n.c. Procédé et installation de filtrage des materielles de vernissage en surplus
US5023116A (en) * 1989-08-07 1991-06-11 Larry Williams Environmentally acceptable process and apparatus for ventilation of continuous paint lines
MX9602147A (es) * 1995-07-31 1997-08-30 Ransburg Corp Metodo para la reduccion de cov y camara de aplicacion de pintura en aerosol que incorpora este metodo.
DE102007015150A1 (de) * 2007-03-02 2008-09-04 Wurster, Gerd Lackieranlage
RU2348649C1 (ru) 2007-12-20 2009-03-10 Институт катализа имени Г.К. Борескова Сибирского отделения Российской академии наук (статус государственного учреждения) Способ получения перфторированного сополимера, содержащего функциональные группы
RU2402718C2 (ru) 2009-01-23 2010-10-27 Евгений Шойльевич Нудельман Способ подачи воздуха в окрасочную камеру для окраски жидкими лакокрасочными материалами (варианты) и вентиляционный агрегат для реализации способа (варианты)
DE102010021540A1 (de) † 2010-05-17 2011-11-17 Gerd Wurster Umluftspritzkabine
HUE032080T2 (hu) * 2011-08-16 2017-08-28 Rippert Besitzgesellschaft Mbh & Co Kg Elõkezelõ berendezés hõvisszanyeréssel
US9671126B2 (en) * 2012-04-17 2017-06-06 Cold Chain, Llc Apparatus for reducing air flow through an opening between adjacent rooms
DE102014104010A1 (de) 2014-03-24 2015-09-24 Imtech Deutschland Gmbh & Co. Kg Anordnung zum Abführen von Lacknebel beim Lackieren eines Bauteils, wie einen Flugzeugrumpf und Lacknebelabführverfahren
RU2614673C1 (ru) * 2016-02-24 2017-03-28 Закрытое акционерное общество "Научно-производственное объединение "ЭЛКОМ" Способ подачи воздуха в камеру для окраски жидкими лакокрасочными материалами и камера для реализации способа (варианты)
CN108607750B (zh) * 2016-12-16 2023-10-13 上海通周机械设备工程有限公司 一种喷漆空气处理系统及其处理方法

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US3395972A (en) * 1965-05-20 1968-08-06 Universal Oil Prod Co Method of cleaning and purifying particle laden discharge streams
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US4266504A (en) * 1979-08-10 1981-05-12 Deere & Company Paint spraying assembly
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DE3043784A1 (de) * 1980-11-20 1982-07-01 Eisenmann KG Maschinenbau-Gesellschaft mbH & Co, 7030 Böblingen Vorrichtung zum absaugen und nassen auswaschen der in dem spritzraum einer farbspritzanlage anfallenden lacknebel

Also Published As

Publication number Publication date
ZA847110B (en) 1985-04-24
JPS6090068A (ja) 1985-05-21
ATE35632T1 (de) 1988-07-15
CA1217334A (fr) 1987-02-03
DE3334257C1 (de) 1985-02-14
DK448184A (da) 1985-03-23
DE3472633D1 (en) 1988-08-18
ES8505267A1 (es) 1985-06-01
EP0135200A2 (fr) 1985-03-27
DK448184D0 (da) 1984-09-20
DD229613A5 (de) 1985-11-13
US4587927A (en) 1986-05-13
CS713884A2 (en) 1991-08-13
EP0135200A3 (en) 1985-09-25
ES536083A0 (es) 1985-06-01

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