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EP0679444A2 - Behandlungsgerät mit Zwangluftumlauf - Google Patents

Behandlungsgerät mit Zwangluftumlauf Download PDF

Info

Publication number
EP0679444A2
EP0679444A2 EP95201014A EP95201014A EP0679444A2 EP 0679444 A2 EP0679444 A2 EP 0679444A2 EP 95201014 A EP95201014 A EP 95201014A EP 95201014 A EP95201014 A EP 95201014A EP 0679444 A2 EP0679444 A2 EP 0679444A2
Authority
EP
European Patent Office
Prior art keywords
installation
air
channel
accordance
conclusion
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP95201014A
Other languages
English (en)
French (fr)
Other versions
EP0679444A3 (de
Inventor
Wilfried Goemaere
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.)
BELMEKO ENGINEERING NV
Original Assignee
BELMEKO ENGINEERING NV
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 BELMEKO ENGINEERING NV filed Critical BELMEKO ENGINEERING NV
Publication of EP0679444A2 publication Critical patent/EP0679444A2/de
Publication of EP0679444A3 publication Critical patent/EP0679444A3/de
Withdrawn legal-status Critical Current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
    • B05B16/60—Ventilation arrangements specially adapted therefor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B21/00—Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects
    • F26B21/003—Supply-air or gas filters
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B21/00—Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects
    • F26B21/02—Circulating air or gases in closed cycles, e.g. wholly within the drying enclosure

Definitions

  • Similar installations e.g. spraying booths for objects that have to be painted such as cars or furniture and sanding booths equipped with a dust collection device are commonly known.
  • they include a three-dimensional arrangement comprising suction channels in or near the floor for the discharge of the air flow out of the processing zone.
  • These channels are equipped with a fan which recirculates the exhaust air upwards through a channel situated above the object to be processed. The air flow leaves this channel downwards through an outlet opening covered with a filtering plate or a cloth.
  • the present invention avoids these disadvantages and proposes an installation for the treatment of an object in a processing zone with forced air circulation including a three-dimensional framework equipped with a suction channel near its underside; this channel has a relatively large exhaust opening (because of the dimensions of the objects that have to be treated, such as cars).
  • this channel there is a fan connected downstream to a discharge channel which flows into the same building.
  • At least one outlet opening for recirculated air is situated at the top of the discharge channel.
  • the fan discharge can be increased in order to guarantee sufficient exhaustion and better protection of the operator against dust and solvent spray.
  • At least the end of the outlet channel will preferably be situated over the processing zone of the object to be treated.
  • the filtering plate When the effluent air has to be filtered, the filtering plate will seal the outlet opening at the top of the channel. This means that the bottom of the filtering plate is loaded and can easily be cleaned in situ. Maintenance and replacement of filters is no longer necessary. Malfunctioning due to carelessness in replacing filters in the constructions known to this day is avoided. More in particular, the arrangement in accordance with the invention, i.e. with filters that no longer clog up, allows the air flow to go on circulating freely in the building. Underpressure and its consequent draught effects at doors, windows and gates in the building are avoided, and the heated air stays in the building.
  • the three-dimensional arrangement of the framework 1 usually contains a couple of horizontally running and appropriately supported (e.g. suspended) girders 17 in which it is possible to mount i.a. the lighting 18 of the work post and from which curtains 19 are hung or to which other walls are fixed for the separation of neighbouring work posts.
  • a fan 4 for the air circulation unit.
  • the relatively large exhaust opening 3 is situated either in the floor under the processing zone 7 and above an underground channel 2 or against the floor near the exhaust fan 4.
  • the fan drives the exhaust (dust- or spray-loaded) air upwards through the discharge channel 6.
  • the horizontal section of channel 6 is equipped at the top with outlet openings 8 for the recirculated air. If necessary, these openings 8 are sealed by means of filtering plates 9.
  • the outlet openings 8 are relatively small in comparison with the exhaust openings 3. This reduces the weight of the construction and increases the outlet velocity in opening 9 with respect to the exhaust velocity in opening 3. At the same time it increases the free access of natural light to the work posts through the building's skylights, making work more pleasant and reducing the use of artificial light.
  • the downward air flow in opening 3, which has to be exhausted consists of air situated above and in the work post space around the object to be processed in zone 7. In operation, part of the upwards going air coming out of opening 8 will be bent around the channel 6 (point/dash-arrows).
  • the filtering plate 9 will stop these (dust) particles at its underside. Thus it is easier to clean the filtering plate in situ than when the particles lie on the filter's upper surface as this is the case with the processing installations known to this day.
  • Certain means 10 such as vibrating motors make it possible for the filtering plates to vibrate from time to time; the particles collected at the underside of the filtering plate fall down into a receptacle 11 at the bottom of the section of the discharge channel 6 above the processing zone 7.
  • the dust collected at the bottom of the air channel stays there in case of further use of the installation and will not soil the filter a second time since the air current moves over it.
  • the collected particles 12 can be removed from this place 11, e.g. through a flap 21 near the end of the channel 6.
  • the filtering plate(s) 9 can be flat, corrugated or composed of successive zigzag-folded strips. The latter guarantee a larger filter surface than flat plates.
  • the proper filter is a surface filter and includes e.g. a non-woven fibrous web.
  • the installations in accordance with this invention can be set up in a fixed position or mounted on a mobile chassis. In both cases they are particularly suited for being used as sanding area, e.g. of vehicles.
  • the outlet opening 8 does not necessarily have to be situated in a horizontal plane.
  • the openings 8 can also be located near the upper edge of the vertically standing side walls of the end 6 of channel 5.
  • Vertically set-up filtering plates 9 can be connected to these side walls.
  • the outlet openings 8 and filtering plates 9 can also be mounted in slanting side walls at the end 6 of channel 5. When the filter is loaded, the filtered dust can still fall down in the lower receptacle 11.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Filtering Of Dispersed Particles In Gases (AREA)
  • Ventilation (AREA)
EP95201014A 1994-04-29 1995-04-21 Behandlungsgerät mit Zwangluftumlauf. Withdrawn EP0679444A3 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
BE9400441A BE1009133A3 (nl) 1994-04-29 1994-04-29 Behandelingsinrichting met gedwongen luchtcirculatie.
BE9400441 1994-04-29

Publications (2)

Publication Number Publication Date
EP0679444A2 true EP0679444A2 (de) 1995-11-02
EP0679444A3 EP0679444A3 (de) 1996-06-19

Family

ID=3888128

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95201014A Withdrawn EP0679444A3 (de) 1994-04-29 1995-04-21 Behandlungsgerät mit Zwangluftumlauf.

Country Status (2)

Country Link
EP (1) EP0679444A3 (de)
BE (1) BE1009133A3 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1997018425A1 (en) * 1995-11-16 1997-05-22 Antonello Boldrini System and procedure for regulating air volume in ovens for painted automobiles

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE508472C (de) * 1930-09-27 Sprimag Spritzmaschinen Bau Ge Verschliessbare Spritzkabine
DE3134248A1 (de) * 1981-08-29 1983-03-17 Ernst Wagner Kg, 7410 Reutlingen "verschliessbare kabine, insbesondere zum spritzen von farben, lacken u. dgl."
US4590884A (en) * 1985-05-09 1986-05-27 Nordson Corporation Portable powder spray system
EP0394622A1 (de) * 1989-04-26 1990-10-31 Robert Andreae Verfahren und Einrichtung zur Filtration
EP0422980A1 (de) * 1989-10-11 1991-04-17 Emile Allaire Fahrbare Lüftungsanlage
US5016364A (en) * 1990-04-23 1991-05-21 Cochrane Russell D Shoe dryer
GB2240386A (en) * 1990-01-26 1991-07-31 Lucas Ind Plc Drying washed articles

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE508472C (de) * 1930-09-27 Sprimag Spritzmaschinen Bau Ge Verschliessbare Spritzkabine
DE3134248A1 (de) * 1981-08-29 1983-03-17 Ernst Wagner Kg, 7410 Reutlingen "verschliessbare kabine, insbesondere zum spritzen von farben, lacken u. dgl."
US4590884A (en) * 1985-05-09 1986-05-27 Nordson Corporation Portable powder spray system
EP0394622A1 (de) * 1989-04-26 1990-10-31 Robert Andreae Verfahren und Einrichtung zur Filtration
EP0422980A1 (de) * 1989-10-11 1991-04-17 Emile Allaire Fahrbare Lüftungsanlage
GB2240386A (en) * 1990-01-26 1991-07-31 Lucas Ind Plc Drying washed articles
US5016364A (en) * 1990-04-23 1991-05-21 Cochrane Russell D Shoe dryer

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1997018425A1 (en) * 1995-11-16 1997-05-22 Antonello Boldrini System and procedure for regulating air volume in ovens for painted automobiles

Also Published As

Publication number Publication date
BE1009133A3 (nl) 1996-12-03
EP0679444A3 (de) 1996-06-19

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