[go: up one dir, main page]

WO1979000478A1 - Cabine pour le revetement par pulverisation electrostatique de poudre - Google Patents

Cabine pour le revetement par pulverisation electrostatique de poudre Download PDF

Info

Publication number
WO1979000478A1
WO1979000478A1 PCT/GB1978/000017 GB7800017W WO7900478A1 WO 1979000478 A1 WO1979000478 A1 WO 1979000478A1 GB 7800017 W GB7800017 W GB 7800017W WO 7900478 A1 WO7900478 A1 WO 7900478A1
Authority
WO
WIPO (PCT)
Prior art keywords
spraybooth
interior
enclosure
spraychamber
materials
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.)
Ceased
Application number
PCT/GB1978/000017
Other languages
English (en)
Inventor
J Toff
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to DE19782857323 priority Critical patent/DE2857323A1/de
Publication of WO1979000478A1 publication Critical patent/WO1979000478A1/fr
Anticipated expiration legal-status Critical
Ceased 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
    • B05B14/40—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
    • 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
    • B05B14/412—Arrangements for collecting, re-using or eliminating excess spraying material for use in spray booths by cleaning the walls of the booth wherein the walls of the booth is perforated or porous walls and the walls are cleaned of or prevented from being contacted with excess material by a flow of fluid, e.g. air or water, directed into 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
    • 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
    • B05B14/42—Arrangements for collecting, re-using or eliminating excess spraying material for use in spray booths using electrostatic means
    • 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
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working

Definitions

  • This invention relates to a spraybooth spraychamber or enclosure in which the application of dry powder materials for the coating of surfaces is carried out for example by electrostatic coating means.
  • oversprayed powder material is encouraged by means of externally induced air movement to be removed from the interior of the spraybooth or spraychamber so that it may be re-used subsequently-
  • One of the claimed advantages for the application of dry powder materials in coating processes is the ability to recover the over ⁇ sprayed materials for re-use. In order to realise such advantage fully it is necessary to recover such oversprayed materials each from the other without such materials having become cross contaminated. It is necessary therefore and desirable that each material be applied separately and that when it is desired to change from one material or one colour of material to another such change is carried out efficiently.
  • the design of the interior sections of the spraybooth may be such as to provide for such sections upon which th oversprayed powder material may come to rest to be at such angle fro the horizontal plane as to cause all but the minimum of such over ⁇ sprayed materials to fall into the exhaust ventilation ducting and t be removed from the interior of the spraybooth.
  • the structure of the spraybooth spraychamber or enclosure may be execute in plastic or similar dielectric material so as to reduce the availa alternative electrical earth attraction which a metal or otherwise electrically conductive spraybooth structure may present to that of the primary electrical earth attraction presented to the charged particles of powder by the articles being coated.
  • the present invention has for its object to provide improved means for the reduction of attraction and -retention of oversprayed powder materials upon the interior surfaces of a spraybooth spraychamber or
  • Such means preferably comprise an interior surface which is fabricated in whole or in part from materials having a degree of porosity which will permit the movement of gaseous materials to be induced through
  • Figure 1 is a schematic side elevational view of an electrostatic powder coating installation operating according to a' conveyorised throughpass technique.
  • Figure 2 is a schematic- cross sectional view through an electrostat powder coating installation operating according to a
  • FIG. 1 is a schematic side elevational sectional view through an electrostatic powder coating installation operating accord to a conveyorised throughpass technique taken substantiall
  • FIG. 1 illustrating an installation or apparatus 10 depicted in Figure 2 the installation will be understood to poss a spraybooth spraychamber or enclosure 11 in the form of a lengthwi extending tunnel, the roof section 11a of which possesses a lengthw
  • the spraybooth spraychamber or enclosure 26 is supported upon base section 25 and consists substantially of a structure having an exte non-porous surface 24 separated from an interior porous surface 23 s as to form a space or plenum chamber into which gaseous material ma be introduced by means of suitably positioned inlet connections 27.
  • the gaseous materials thus introduced pass through the interior porous surface 23 substantially in the direction indicated by lines 28 and prevent oversprayed powder materials which have not become attached to the articles being coated 15 from becoming deposited upon the interior surfaces of the spraybooth spraychamber or enclosure 23 and assist in transporting such oversprayed powder materials so that they become influenced in the direction indicated by lines 29 and 30 by the ventilating forces created by motorised fan 34 of the dust collecting device 35 and removed from the interior of the spraybooth spraychamber or enclosure 11 through ventilation duct 36.
  • a multiplicity of discharge electrodes 33 are positioned in the plenum chamber formed between the Interior surfaces 23 and the exterior surfaces 24 and supplied with high voltage through cable 32 from a power supply 31. Best mode of carrying out the invention
  • the invention may be carried into practice in various ways, but the following may be instanced as a convenient practical arrangement of the spraybooth spraychamber or enclosure according to the invention.
  • the interior surface having a de ree of porosity is so positioned in relation to the exterior surface of the spraybooth spraychamber or enclosure as to provide a plenum.
  • Another convenient practical arrangement for the spraybooth spraychamber or.enclosure according to the present invention would be for a multiplicity of electrical discharge electrodes to be positioned within the plenum formed by the interior and exterior surfaces of the structure and connected to a source of high voltage so that the gaseous material passing into the interior of the spraybooth spraychamber or enclosure becomes ionised with a like polarity of charge to that of the powder materials being employed in the coating process providing further repulsion of the oversprayed powder material from the interior surfaces of the spraybooth spray- chamber or enclosure by means of an electro-magnetic nature. • 195 The multiple discharge electrodes being within the plenum thus reducing the possibility of spark discharge between such electrode and the earthed workpieces or articles being coated.

Landscapes

  • Application Of Or Painting With Fluid Materials (AREA)
  • Electrostatic Spraying Apparatus (AREA)

Abstract

Une cabine pour le revetement de surfaces par pulverisation electrostatique de matiere en poudre comprend une surface exterieure non-poreuse (24) et une surface interieure poreuse (23). Ces deux surfaces delimitent un volume dans lequel un gaz, par exemple ionise, peut etre introduit pour prevenir ou minimiser la deposition du materiau pulverise en exces sur la surface interieure de la cabine.
PCT/GB1978/000017 1978-01-05 1978-10-02 Cabine pour le revetement par pulverisation electrostatique de poudre Ceased WO1979000478A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19782857323 DE2857323A1 (de) 1978-01-05 1978-10-02 Spraybooth for use in electrostatic powder coating

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB269/78 1978-01-05
GB269/78A GB1588503A (en) 1978-01-05 1978-01-05 Installation and method for electrostatic powder coating of articles

Publications (1)

Publication Number Publication Date
WO1979000478A1 true WO1979000478A1 (fr) 1979-07-26

Family

ID=9701387

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB1978/000017 Ceased WO1979000478A1 (fr) 1978-01-05 1978-10-02 Cabine pour le revetement par pulverisation electrostatique de poudre

Country Status (3)

Country Link
EP (1) EP0007370A1 (fr)
GB (1) GB1588503A (fr)
WO (1) WO1979000478A1 (fr)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0053943A1 (fr) * 1980-12-08 1982-06-16 Nordson Corporation Une cabine de projection de poudre
DE3843639A1 (de) * 1987-06-24 1990-06-28 Onoda Cement Co Ltd Vorrichtung zum elektrostatischen aufbringen eines pulverueberzuges
WO1991011267A1 (fr) * 1990-01-25 1991-08-08 ABB Fläkt AB Systeme permettant de modifier le mouvement de particules dans un dispositif mobile
WO1992008549A1 (fr) * 1990-11-16 1992-05-29 Loeoef Ingemar Cabine de pulverisation
EP0634225A3 (fr) * 1993-07-12 1995-09-06 Wagner Int Dispositif pour décharger les parois d'une cabine en matériau synthétique.
WO1997014508A1 (fr) * 1995-10-18 1997-04-24 Michael Eder Dispositif pour le transport de substances finement reparties se formant lors du traitement de surface d'articles
FR2765077A1 (fr) * 1997-06-25 1998-12-31 Ifremer Perfectionnement aux dispositifs de fumage electrostatique pour produits alimentaires carnes
DE19805514A1 (de) * 1998-02-11 1999-08-19 Wagner Int Pulverbeschichtungsanlage
EP1527824A3 (fr) * 2003-10-28 2009-07-29 Symach S.r.l. Amélioration pour cabines de pulverisation et stations de séchage
EP2803420A3 (fr) * 2013-04-24 2015-02-25 Trasmetal S.p.A. Cabine améliorée pour articles de revêtement en poudre

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2204254A (en) * 1987-03-24 1988-11-09 Auto Paint Systems Limited Electrostatic dry-powder spraying
CN115155896A (zh) * 2022-08-15 2022-10-11 山东东宏管业股份有限公司 一种流化式免清理浮粉回收结构及喷涂系统

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2155569A5 (fr) * 1971-10-06 1973-05-18 Masuda Senichi
US3741155A (en) * 1970-08-21 1973-06-26 Minnesota Mining & Mfg Apparatus for particulate coating of an elongate article
GB1336872A (en) * 1971-01-13 1973-11-14 Volstatic Ltd Removing and reclaiming particulate material lodged in spraying plant
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
US3904346A (en) * 1971-12-23 1975-09-09 Leslie Earl Shaw Electrostatic powder coating process
US3921576A (en) * 1973-12-07 1975-11-25 Charles R Vertue Spray booth

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3741155A (en) * 1970-08-21 1973-06-26 Minnesota Mining & Mfg Apparatus for particulate coating of an elongate article
GB1336872A (en) * 1971-01-13 1973-11-14 Volstatic Ltd Removing and reclaiming particulate material lodged in spraying plant
FR2155569A5 (fr) * 1971-10-06 1973-05-18 Masuda Senichi
US3904346A (en) * 1971-12-23 1975-09-09 Leslie Earl Shaw Electrostatic powder coating process
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
US3921576A (en) * 1973-12-07 1975-11-25 Charles R Vertue Spray booth
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

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0053943A1 (fr) * 1980-12-08 1982-06-16 Nordson Corporation Une cabine de projection de poudre
DE3843639A1 (de) * 1987-06-24 1990-06-28 Onoda Cement Co Ltd Vorrichtung zum elektrostatischen aufbringen eines pulverueberzuges
WO1991011267A1 (fr) * 1990-01-25 1991-08-08 ABB Fläkt AB Systeme permettant de modifier le mouvement de particules dans un dispositif mobile
WO1992008549A1 (fr) * 1990-11-16 1992-05-29 Loeoef Ingemar Cabine de pulverisation
EP0634225A3 (fr) * 1993-07-12 1995-09-06 Wagner Int Dispositif pour décharger les parois d'une cabine en matériau synthétique.
WO1997014508A1 (fr) * 1995-10-18 1997-04-24 Michael Eder Dispositif pour le transport de substances finement reparties se formant lors du traitement de surface d'articles
FR2765077A1 (fr) * 1997-06-25 1998-12-31 Ifremer Perfectionnement aux dispositifs de fumage electrostatique pour produits alimentaires carnes
DE19805514A1 (de) * 1998-02-11 1999-08-19 Wagner Int Pulverbeschichtungsanlage
EP1527824A3 (fr) * 2003-10-28 2009-07-29 Symach S.r.l. Amélioration pour cabines de pulverisation et stations de séchage
EP2803420A3 (fr) * 2013-04-24 2015-02-25 Trasmetal S.p.A. Cabine améliorée pour articles de revêtement en poudre

Also Published As

Publication number Publication date
EP0007370A1 (fr) 1980-02-06
GB1588503A (en) 1981-04-23

Similar Documents

Publication Publication Date Title
US2773472A (en) Apparatus for electrostatic spray coating
WO1979000478A1 (fr) Cabine pour le revetement par pulverisation electrostatique de poudre
US3900000A (en) Apparatus for spray coating articles
US2729191A (en) Electrostatic coating apparatus
US5527564A (en) Method and apparatus for repelling overspray in spray paint booths
US2723921A (en) Electrostatic coating
US3376156A (en) Spray painting employing high voltage charging
CA1226430A (fr) Installation d'enduction electrostatique
JP2004298667A (ja) 薄膜形成装置
JP3817393B2 (ja) 静電植毛並に静電塗装を施す静電加工室
US2722908A (en) Electrostatic spray painting apparatus
JP3009026B2 (ja) 被塗物の粉体塗装法
JP3850960B2 (ja) 静電粉体塗着法
US7261764B1 (en) System and method for spatially-selective particulate deposition and enhanced deposition efficiency
US4325319A (en) Air flow system for the charging conductor in an electrostatic painting system
CA1086491A (fr) Dispositif et methode pour appliquer un email vitrifie sur des objets metalliques
EP0032528B1 (fr) Système de courant d'air pour conducteur de charge dans un système de peinture électrostatique
JPS6012160A (ja) 静電塗装装置
JPS6012159A (ja) 静電塗装装置
JP2003135997A (ja) 粉体塗装装置及び粉体塗装方法
JPS6012156A (ja) 静電塗装装置
JPH0424115B2 (fr)
JPS6061078A (ja) 静電塗装方法
JPS5939357A (ja) 線状体用静電塗布装置
JPH1176888A (ja) 平板状被塗物の塗装装置

Legal Events

Date Code Title Description
AK Designated states

Designated state(s): CH DE SE US

AL Designated countries for regional patents

Designated state(s): FR

RET De translation (de og part 6b)

Ref country code: DE

Ref document number: 2857323

Date of ref document: 19801204

Format of ref document f/p: P