EP2026910B1 - Lackieranlage - Google Patents

Lackieranlage Download PDF

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Publication number
EP2026910B1
EP2026910B1 EP08715724.4A EP08715724A EP2026910B1 EP 2026910 B1 EP2026910 B1 EP 2026910B1 EP 08715724 A EP08715724 A EP 08715724A EP 2026910 B1 EP2026910 B1 EP 2026910B1
Authority
EP
European Patent Office
Prior art keywords
air
installation according
painting installation
region
fed
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.)
Revoked
Application number
EP08715724.4A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP2026910A1 (de
Inventor
Gerd Wurster
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.)
Duerr Systems AG
Original Assignee
Duerr Systems AG
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=39670194&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP2026910(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Duerr Systems AG filed Critical Duerr Systems AG
Publication of EP2026910A1 publication Critical patent/EP2026910A1/de
Application granted granted Critical
Publication of EP2026910B1 publication Critical patent/EP2026910B1/de
Revoked legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • B05B14/46—Arrangements for collecting, re-using or eliminating excess spraying material for use in spray booths by washing the air charged with excess material
    • 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
    • B05B16/60—Ventilation arrangements specially adapted therefor
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S118/00—Coating apparatus
    • Y10S118/07—Hoods
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S55/00—Gas separation
    • Y10S55/46—Spray booths

Definitions

  • Air conditioning requires cooling to eliminate atmospheric moisture and then heating to operating temperature again. As a result of the large air flow rates that are necessary, this results in a significant energy consumption.
  • the object of the invention is to provide a paint shop for painting parts, whereby the energy consumption can be reduced.
  • a paint shop according to the preamble of claim 1 is known, which has an application area and two auxiliary areas with separate air supply.
  • Supply air is drawn in from the environment, which is introduced into the application area via an air supply system, which may contain air conditioning, and into the two auxiliary areas with separate air ducts.
  • the exhaust air from the spray booth releases its energy through a heat exchanger partially to the fresh air sucked in and is then released to the environment.
  • This system also requires considerable amounts of energy for the air conditioning of the supply air for the application area and the auxiliary areas.
  • the exhaust air from the spray booth is partially recycled and partially supplied to the application area after passing through an air conditioning device.
  • the object of the invention is to provide a paint shop for painting parts, whereby a high-quality paint can be guaranteed and at the same time the energy consumption compared to conventional paint shops can be reduced.
  • the remaining auxiliary areas of the spray booth in which optionally additional units, such as painting robots, lifting devices and the like, are arranged, can be supplied with supply air, which not air conditioned.
  • additional units such as painting robots, lifting devices and the like
  • air conditioning is understood to mean an air treatment which always comprises cooling and associated dehumidification.
  • a simple “air conditioning” such as by heating or mixing with other air is not included.
  • Air conditioning is considered necessary to be able to actually achieve good painting results.
  • At least one guide element is provided between the application region and the at least one auxiliary region for optimizing the flow of air in the transition region between the application region and the auxiliary region.
  • exhaust air from the spray booth is at least partially performed in recirculation mode via at least one separator, and at least a portion of the circulating air of an exhaust air purification device, such as a thermal afterburning, preferably a regenerative afterburning, or solvent recovery fed.
  • an exhaust air purification device such as a thermal afterburning, preferably a regenerative afterburning, or solvent recovery fed.
  • solvent-based lacquers facilitates concentration of the solvents to a range of up to about 10 g / m 3 (typically about 3 g / m 3 ) and suitable exhaust air purification by thermal afterburning.
  • the second air intake at least partially sucks recycled air from the spray booth.
  • the second air supply can also be supplied at least partially with ambient air or fresh air.
  • the energy saving achieved according to the invention is achieved.
  • a partition with an application opening for spray application is provided between the application area and the auxiliary area.
  • This measure has the advantage that an operator for a manual spray painting can stand in the auxiliary area and can be supplied with separate supply air, which is preferably fresh air. Through the application opening, the spray application can be carried out in a suitable manner.
  • a pressure gradient preferably arises between the auxiliary region and the application region, so that an air flow results from the auxiliary region to the application region.
  • the spray booth has a separate, preferably movably arranged work cabin which is connected to the application area via an application opening.
  • This embodiment is particularly advantageous in the painting of large parts.
  • the movement of the work cabin can e.g. in the vertical direction and / or in the horizontal direction or as a rotation.
  • the partition between the application area and the auxiliary area is designed to be movable in accordance with a further embodiment of the invention.
  • the application opening can be changeable or movable.
  • the second air supply for the auxiliary area can be at least partially supplied with fresh air.
  • air filters with different qualities are provided for the air conditioning unit and for the air supply for the auxiliary area, preferably finer qualities for the air conditioning unit and coarser qualities for the second air supply for the auxiliary area.
  • the qualities F5 and F9 could be used in the air-conditioning unit, while only F5 could be used for the auxiliary area.
  • a monitoring device for monitoring the solvent concentration is provided.
  • a control device for controlling the proportion of air, which is supplied to the exhaust air purification device is provided.
  • the proportion of air which is fed to the exhaust air purification device is hereby preferably controlled as a function of the solvent concentration in the region of the second air supply.
  • the solvent concentration in the air supplied to the exhaust air purification device such that the solvent concentration is between 2 and 20 g / m 3 , preferably between 2 and 10 g / m 3 , particularly preferably between 2 and 5 g / m 3 is held.
  • the exhaust air can also be passed over a "cold trap" and the solvent fraction can be separated off by condensation.
  • the monitoring device is designed to measure the solvent concentration
  • the control device has a valve which is controlled as a function of the solvent concentration. This may be, for example, a controllable flap or a controllable fan.
  • the monitoring device is designed for monitoring the amount of solvent introduced and the control device for controlling the portion of the circulating air, which is supplied to the exhaust air purification device, depending on the introduced amount of solvent.
  • the amount of solvent for example, the amount of liquid sprayed in the spray booths can be used.
  • the spray booth is sealed off to the outside by doors or inlet and outlet locks.
  • the double doors are preferably each coupled with a lock such that only one outer or one inner door can be opened.
  • a spray booth according to the invention has a spray booth with a Applikatiöns Colour for painting parts, an air supply and an air extraction, with a conveyor for conveying parts through the spray booth, as well as an inlet lock and an outlet lock, the locks as with connected to the interior of the spray booth channels are formed, which run obliquely upward to the outside.
  • Such an embodiment of the invention also leads to energy savings when the spray booth is not equipped with separate air ducts for an application area and an auxiliary area.
  • the conveyor In conventional flow spray booths, the conveyor usually runs horizontally. At the inlet end and at the outlet end, no special measures have been taken to achieve air separation between the conditioned cabin air and the non-conditioned outside air. This leads to significant energy losses at the inlet and outlet ends. There is also the risk of solvent losses and the risks of dirt contamination.
  • the amount of air entering this way is significantly reduced by the special design of the locks at the inlet and outlet ends, so that the total air turnover is reduced, which is associated with corresponding savings in energy and costs.
  • the locks are closed to the outside in each case by a lower edge, and wherein the lower edge are arranged at a level which is at least at the level of the conveyor on which the conveyor extends within the spray booth.
  • air-conditioning devices or ventilation devices are provided with filters, which can be flowed through in the vertical direction.
  • FIG. 1 A first embodiment of a paint shop according to the invention is in FIG. 1 total designated by the numeral 10.
  • the painting installation has a spray booth 12, which is divided into three areas, a centrally arranged application area 14, in which parts 30 are spray-painted and in two lateral auxiliary areas 16, 18, in which auxiliary equipment for painting, such as robots, hoists or the like, are provided.
  • FIG. 4 The transition between the application area 14 and the auxiliary areas 16, 18 is exemplary FIG. 4 to see closer.
  • a corridor 52 which extends longitudinally through the spray booth 12 and can be moved through the parts 30 along a path predetermined by a conveyor, as indicated by the arrow 54.
  • two robots 60, 62 are arranged, of which one 60 in the auxiliary area 18 and a second 62 in the auxiliary area 16.
  • a first application surface 56 within the corridor 52 which is operated by the robot 62
  • a second application surface 58 which is operated by the robot 62, shown in dashed lines.
  • These application surfaces 56, 58 are located within an application area 14 and are supplied with conditioned air from above via a separate air supply 20, which is guided via an air-conditioning device 36 (cf. FIG. 1 ).
  • the remaining auxiliary areas 16, 18, in which the robots 62, 64 and possibly other auxiliary units are accommodated, are supplied via a separate air supply 22 and 24 with separate supply air, which according to FIG. 1 is supplied via a recirculation device 38.
  • the energy-intensive air conditioning in the application area 14 can be limited to the actual necessary air volume, while the remaining areas of the spray booth, which are designated as auxiliary areas 16, 18, with separate supply air be supplied, which is not air-conditioned or only partially air-conditioned.
  • a recirculation device 38 is shown.
  • the recirculation device 38 via which the air supply 22, 24 of the auxiliary areas 16, 18 is supplied with supply air, generally has a fan, a filter and possibly an additional heater.
  • blowing surfaces which in FIG. 1 are indicated schematically with 25.
  • these blowing surfaces can be configured for example as filter ceilings, but also as a grid, nozzles, perforated plates or the like.
  • suitable materials for a uniform air distribution are used.
  • turbulences that result as a result of the different air quality between the application region 14 and the auxiliary regions 16, 18 can be minimized.
  • the supply air supplied to the application area 14 and the auxiliary areas 16, 18 from the air conditioning unit or from the air conditioning unit is controlled in such a way that the same or similar air speeds result.
  • the same possible temperatures and low air density differences are sought, so as to achieve the result as possible a rectified, laminar flow through the spray booth from top to bottom. In this way, high quality finishes can be achieved.
  • the exhaust air of the spray booth 12 is recycled and for this purpose via a scrubber 32 (eg venturi scrubber) and a post-scrubber 34 out.
  • the exhaust air passes to the air conditioning device 36, in which it is adjusted to the desired temperature and relative humidity.
  • Another part of the exhaust air passes to the recirculation device 38, from which the air supply 22, 24 for the auxiliary areas 16, 18 is fed.
  • a portion of the exhaust air is branched off after the recirculation device 38 and an exhaust air purification system 40, preferably supplied in the form of a thermal afterburning, to then be discharged as practically pollutant-free exhaust air to the environment.
  • the air conditioning device 36 used is basically known in the prior art. It usually has a pre-filter, a drain cooler, a heater and a blower. Further, suitable control is provided to adjust the air supplied to the spray booth to an appropriate temperature (e.g., 24 ° C) and a suitable relative humidity (e.g., 65%).
  • an appropriate temperature e.g., 24 ° C
  • a suitable relative humidity e.g., 65%
  • dry separation air conditioning may also be used.
  • FIG. 2 shows a non-inventive embodiment
  • paint shop is in FIG. 2 represented and designated overall by the numeral 10a.
  • corresponding reference numerals are used for corresponding parts.
  • the paint shop 10a has a spray booth 12a, which is opposite to the previously with reference to FIG. 1 spray booth explained 12 only differs in that the guide surfaces 26a, 28a between the application area 14 and auxiliary areas 16, 18 are rigid.
  • the spray booth 12a is not operated with circulating air as in the aforementioned embodiment, but is supplied with ambient air via the air conditioner 36 and an air feeder 42, respectively.
  • FIG. 3 A further modification of a paint shop according to the invention is in FIG. 3 represented and designated overall by the numeral 10b.
  • the spray booth 12b has an application area 14 and an auxiliary area 16, which are separated from one another by a partition wall 44, wherein an application opening 46 is formed in the partition wall 44.
  • An operator 51 standing in the auxiliary area 16 can spray-paint parts 30, which are located in the application area 14, by means of a spray gun 49.
  • the air supply 24 for the application area 14 is in turn via an air conditioning device 36.
  • the air supply 20 is fed to the auxiliary area 16 with fresh air via a supply air 42.
  • a pressure gradient between the auxiliary area 16 and the application area 14 is preferably set, so that the operator 51 is protected from pollutant-laden ambient air of the application area 14 by an air flow into the application area 14.
  • a thermal post-combustion 40 is preferably additionally connected to clean solvent-laden circulating air and then to be able to deliver to the environment.
  • the supply air flow for the auxiliary area 16, which is supplied via the supply air 42 may be such that it corresponds to the exhaust air flow discharged via the thermal afterburning.
  • the thermal afterburning 40 may be designed for 5000 m 3 / h and the same amount supplied via the air supply device 42 in the auxiliary area 16.
  • a dry separation 48 may be provided below, which allows a discharge of the exhaust air via a blower 50 to the environment.
  • an exhaust air for the auxiliary area 16 can also be completely dispensed with, provided that the supplied supply air is conducted completely via the application opening 46 into the application area 14.
  • the auxiliary area 16 can also be designed as a ventilated hall in which the operator 51 stands and which is in communication with the application area 14 via the application opening 46.
  • FIG. 5 is an easy compared to the design according to FIG. 4 modified embodiment of a spray booth shown and designated overall by 12c.
  • a robot 64 is shown in the auxiliary area 18 in order to use it to paint parts 30, which are conveyed through the application area 14 by means of a conveyor 68.
  • FIG. 6 A modification of the previously based on FIG. 3 explained painting plant is in FIG. 6 represented and designated overall by the numeral 10d.
  • the spray booth 12d includes a movable workbench 70 in which an auxiliary area 16 is provided for an operator.
  • the movable work cabin 70 has the application opening 46 and is above it with the application area 14 in connection.
  • the work cabin 70 has no own exhaust air.
  • the work cabin 70 can be moved approximately in the vertical direction and / or in the horizontal direction, with the application opening 46 being coupled to the application area 14 via suitable closing devices and seals.
  • FIG. 7 is another over the execution according to FIG. 1 modified version of a painting according to the invention shown and designated 10e in total.
  • the paint shop 10e has a spray booth 12 with an application area 14 and two auxiliary areas 16, 18 according to FIG FIG. 1 on.
  • the application area is as in FIG. 1 supplied via an air supply 20 from an air conditioning device 36, while the auxiliary areas 16, 18 are supplied via a separate air supply 22, 24 from a recirculation device 38.
  • Both the air conditioning device 36 and the recirculation device 38 are partially fed in the circuit of the exhaust air of the spray booth 12, which is cleaned via a washing device 32 and a post-washer 34.
  • FIG. 8 is the spray booth according to FIG. 1 shown enlarged in a partial longitudinal section in the region of the inlet side.
  • the cutting line runs directly through the application area 14.
  • the spray booth designed as a pass-through cabin has an inlet lock 92 and an outlet lock (not shown) of identical construction.
  • the inlet lock 92 and the outlet lock are formed as channels, which open obliquely from above into the interior of the spray booth 12.
  • a conveyor 90 runs parallel along the upper inner side of the inlet lock 92, ie obliquely from above into the spray booth 12. Within the spray booth 12, the conveyor 90 runs horizontally immediately below the blowing surfaces 25. At the outlet side of the conveyor 90 runs again parallel along the upper inside of the outlet lock slanted upward.
  • the lower edge 94 of the inlet lock 92 (and correspondingly also the outlet lock) is at the highest possible level, preferably at least at the level of the conveyor 90 within the spray booth 12.
  • FIG. 9 is a modification of the embodiment according to FIG. 8 shown.
  • two spray booths 12, 12e are arranged one behind the other and coupled together by a channel 97, through which a conveyor extends.
  • a channel 97 through which a conveyor extends.
  • an inlet lock 92 according to FIG. 8 provided, while at the outlet end of the second spray booth 12 e an outlet lock 96 according to FIG. 8 is provided.
  • a spray booth 12f is shown communicating with a first lock 98 on a first side and a second lock 102 on the opposite side.
  • doors 99, 100 and 103, 104 are provided, which are controlled so that only ever an outer door 100, 104 or an inner door 99, 103 can be opened. This minimizes the air exchange.
  • FIG. 11 is a section of a surface filter for the air conditioning device 36 or the air circulation device 38 according to FIG. 1 shown in simplified form. It is a surface filter with a filter material 106, which also rests on a support surface 107 and can be flowed through in the vertical direction.
  • FIG. 12 shows an embodiment of such a filter 105a in the form of a pocket filter or bag filter 106 which is held on a receptacle 107 and is also held in a receptacle 107.

Landscapes

  • Details Or Accessories Of Spraying Plant Or Apparatus (AREA)
EP08715724.4A 2007-03-02 2008-02-11 Lackieranlage Revoked EP2026910B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE102007011602 2007-03-02
DE102007015150A DE102007015150A1 (de) 2007-03-02 2007-03-23 Lackieranlage
PCT/EP2008/001012 WO2008107056A1 (de) 2007-03-02 2008-02-11 Lackieranlage

Publications (2)

Publication Number Publication Date
EP2026910A1 EP2026910A1 (de) 2009-02-25
EP2026910B1 true EP2026910B1 (de) 2016-09-07

Family

ID=39670194

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08715724.4A Revoked EP2026910B1 (de) 2007-03-02 2008-02-11 Lackieranlage

Country Status (5)

Country Link
US (1) US20100101489A1 (enExample)
EP (1) EP2026910B1 (enExample)
JP (1) JP5302223B2 (enExample)
DE (1) DE102007015150A1 (enExample)
WO (1) WO2008107056A1 (enExample)

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EP2276862B1 (en) * 2008-04-16 2023-12-20 Imbox Protection A/S Method and apparatus for impregnation of items
JP5469966B2 (ja) * 2009-09-08 2014-04-16 東京応化工業株式会社 塗布装置及び塗布方法
JP5719546B2 (ja) * 2009-09-08 2015-05-20 東京応化工業株式会社 塗布装置及び塗布方法
DE102010021540A1 (de) * 2010-05-17 2011-11-17 Gerd Wurster Umluftspritzkabine
GB2487565B (en) * 2011-01-27 2013-01-16 Spraybooth Technology Ltd Spray booths
GB2498136B (en) * 2011-01-31 2013-11-06 Spraybooth Technology Ltd Spray booths
GB2498135B (en) * 2011-01-31 2013-08-14 Spraybooth Technology Ltd Spray booths
GB2487594B (en) * 2011-01-31 2013-08-07 Spraybooth Technology Ltd Spray booths
US8646404B2 (en) * 2011-09-26 2014-02-11 Todd E. Hendricks, SR. Modular system with platformed robot, booth, and fluid delivery system for tire spraying
DE102012003299A1 (de) 2012-02-18 2013-08-22 Eisenmann Ag Verfahren zum Behandeln von Gegenständen und Anlage hierfür
DE102012004704A1 (de) * 2012-03-07 2013-09-12 Eisenmann Ag Verfahren und Vorrichtung zum Abführen von mit Overspray beladener Prozessluft sowie Anlage zum Beschichten von Gegenständen
US11364515B2 (en) 2012-07-25 2022-06-21 David John Utting Transportable vehicle enclosures
US9527097B2 (en) * 2013-11-05 2016-12-27 Torrent Systems Llc Spray coating system and method
JP5906351B1 (ja) * 2015-11-09 2016-04-20 アンデックス株式会社 塗装ブース
JP6081015B1 (ja) * 2016-10-07 2017-02-15 アンデックス株式会社 上下流換気方式の塗装ブース及び上下流換気方式の塗装ブースの機能拡張方法
JP7230765B2 (ja) * 2019-10-04 2023-03-01 トヨタ自動車株式会社 塗装ブースおよび塗装方法
CN113649214A (zh) * 2021-08-06 2021-11-16 重庆市铜梁区佳浩科技有限公司 一种笔记本电脑外壳智能喷漆生产线

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Also Published As

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JP2010520037A (ja) 2010-06-10
US20100101489A1 (en) 2010-04-29
JP5302223B2 (ja) 2013-10-02
DE102007015150A1 (de) 2008-09-04
EP2026910A1 (de) 2009-02-25
WO2008107056A1 (de) 2008-09-12

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