US3391630A - Spray painting tunnel - Google Patents

Spray painting tunnel Download PDF

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Publication number
US3391630A
US3391630A US599558A US59955866A US3391630A US 3391630 A US3391630 A US 3391630A US 599558 A US599558 A US 599558A US 59955866 A US59955866 A US 59955866A US 3391630 A US3391630 A US 3391630A
Authority
US
United States
Prior art keywords
tunnel
air
washing liquid
sequence
slots
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 - Lifetime
Application number
US599558A
Other languages
English (en)
Inventor
Wilhelmsson Gunnar
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.)
Svenska Flaktfabriken AB
Original Assignee
Svenska Flaktfabriken AB
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 Svenska Flaktfabriken AB filed Critical Svenska Flaktfabriken AB
Application granted granted Critical
Publication of US3391630A publication Critical patent/US3391630A/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • 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
    • 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
    • B05B14/468—Arrangements for collecting, re-using or eliminating excess spraying material for use in spray booths by washing the air charged with excess material with scrubbing means arranged below the booth floor
    • 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

  • ABSTRACT OF THE DISCLOSURE A spray-painting tunnel having ventilating air injected along the roof and withdrawn at the floor, and having an intermediate bottom in the form of a sequence of steps with a like sequence of longitudinal air outlet slots in the vertical portions of the steps.
  • the slots are individually adjustable to provide proper transverse distribution of exhausted air and each slot is also adjustable along its length to provide the desired longitudinal distribution of exhausted air.
  • the present invention relates to a tunnel for spraypainting intermittently or continuously advanced objects, which tunnel is ventilated by air supplied, for example, at the tunnel roof and removed by suction at the tunnel floor.
  • the air is conducted away to a drop separator in the form of a chamber provided below the tunnel and having the same width as the tunnel and a vertical ventilation air outlet shaft located on at least one side of the tunnel.
  • the tunnel is also equipped with means for the supply of washing liquid for entrainment in ventilating air.
  • the invention has as its object to improve conventional arrangements of spray-painting installations, particularly with respect to a more uniform air flow through the tunnel, and to eliminate lee-turbulence" close to the side walls in the tunnel.
  • Another object of the invention is to render possible a simplification with respect to the supply of washing liquid and, finally, to eliminate the inconvenience of paint deposits, when the washing liquid pumps are switched off.
  • the spray-painting installation according to the invention is substantially characterized by an intermediate bottom between the tunnel and the underlying chamber, which bottom comprises a number of step elements arranged in sequence, the horizontal portions of said step elements providing a liquid plane by flushing with washing liquid or as a shallow basin of washing liquid, and the vertical portions being provided with longitudinal slots to form a sequence of longitudinally elongated outlet openings for conducting away the ventilation air to said drop separator.
  • Means for supplying washing liquid is mounted to cooperate with at least the uppermost step element, and the outlet slots are provided with means for adjusting their width to such a value that the out-flowing ventilation air is imparted a speed, which is sufficient to entrain by ejector effect the supplied washing liquid into the air stream and to atomize said liquid therein.
  • the sequence of step elements may be arranged either to form a bottom declining from one side of the tunnel to the opposite side, or to form a bottom declining from both sides towards the center.
  • the outlet opening in each step element is divided into a series of individually adjustable slots separate from one another. Due to the fact that the floor is formed by a number of step elements, the supply of washing liquid can be substantially simplified compared with conventional arrangements, in such a manner, that normally water must be supplied only onto the uppermost step element, from which it flows by gravity to the remaining elements. Since in this case the ventilation air is conducted away through a number of step elements, it is possible to discharge the air stream according to the demand across the transverse direction of the tunnel.
  • FIG. 1 shows a cross-section through a spray-painting tunnel installation according to the invention
  • FIG. 2 showing the outlet openings is a section taken along the line 2--2 of FIG. 1.
  • FIG. 1 designates a closed channel or tunnel, through which the objects 2 to be spray-painted are advanced.
  • Heated ventilation air is supplied from means (not shown) through a duct 3 and is uniformly distributed across the entire horizontal crosssection of the tunnel by filters 4 and air guides 5 inserted in the roof.
  • a chamber 6 provided below the tunnel communicates with the tunnel through a grating 7 having an extent which substantially corresponds to the total tunnel width.
  • the chamber 6 is equipped with a liquid basin 8 below said grating.
  • an intermediate bottom 9 is arranged between the tunnel and said chamber, which bottom comprises a number of step elements 9a, 9b, arranged in sequence.
  • the horizontal portions of the step elements 10a, 10b, 10c provide a liquid plane by being flushed with washing liquid or as a shallow liquid basin.
  • the vertical portions of the step elements 11a, 11b, 11c are provided with longitudinal slots 12a, 12b, to form a sequence of outlet openings for conducting away the ventilation air to a drop separator.
  • the drop separator comprises the aforesaid chamber 6 and an outlet shaft 13 located on at least one side of the tunnel 1.
  • a washing liquid supply means 14 is mounted to cooperate with the uppermost element 9a.
  • Means 15 is provided for adjusting the width of the outlet openings to such a value that the outflowing ventilation air is imparted a speed, which is sufiicient to entrain by ejector effect the supplied washing liquid into the air stream and to atomize the liquid in said stream.
  • the elements are arranged to form a bottom declining from one side of the tunnel to the opposite side.
  • the step elements may also be arranged to form a bottom declining from both sides to the center.
  • outlet openings 12a, 12b, 12c is distributed across the transverse dimension of the tunnel, and the openings are adjustable to provide the desired flow characteristics both transversely and longitudinally of the tunnel.
  • the outlet opening 12b in the element 9b is divided into a series of individually adjustable slots 16a, 16b and disposed along the length of the tunnel and respectively separated from one another. In the spaces 17a and 17b between said slots, the washing liquid can flow down unimpeded to the element next below.
  • adjustable overflow plates 18a, 18b and 18c are mounted above the slots. Due to this design, thus, it is possible to direct a greater amount of washing liquid to the points, where the spraying intensity is the highest.
  • the mixture of ventilation air, washing liquid and paint particles passing through the outlet openings is conducted away from the chamber 6 through the vertical shaft 13 to the atmosphere.
  • the vertical outlet shaft is provided in known manner with oblique deflection plates 20 in order to bring about an eflective separation of entrained liquid and paint particles.
  • the deflection plates may be designed in known manner to be subjected to watering. Where appropriate, and particularly in the embodiment in which the elements are arranged to form a bottom declining from both sides to the center, it may be suitable to provide the spray-painting installation with vertical outlet shafts mounted on both sides.
  • a tunnel for spray-painting intermittently or continuously advanced objects ventilated by air supplied at the roof and discharged at the floor, having means for supplying washing liquid, and a drop separator comprising a chamber underlying the tunnel and of the same width as the tunnel and a vertical ventilation air outlet shaft located on at least one side of the tunnel for conducting away the discharged ventilating air; an intermediate bottom between the tunnel and said chamber, which bottom comprises a number of step elements arranged in sequence across the width of the tunnel, the horizontal portions of said step elements providing a plane of wash- 1 ing liquid and the vertical step portions forming a sequence of longitudinal slots distributed across the transverse direction of the tunnel to form outlet openings for conducting away the ventilation air to said drop separator, and said means for supplying washing liquid supply being mounted to cooperate with at least the uppermost element, said outlet slots being provided with means for adjusting their width to such a value, that the outfiowing ventilation air is imparted a speed, which is suflicient to entrain by ejector effect the supplied washing liquid into
  • a tunnel according to claim 1 wherein the outlet openings in said sequence are longitudinally divided into a series of individually adjustable slots separated from each other to control the distribution of air flow longitudinally of said tunnel.

Landscapes

  • Details Or Accessories Of Spraying Plant Or Apparatus (AREA)
  • Nozzles (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)
US599558A 1965-12-09 1966-12-06 Spray painting tunnel Expired - Lifetime US3391630A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE15985/65A SE311490B (zh) 1965-12-09 1965-12-09

Publications (1)

Publication Number Publication Date
US3391630A true US3391630A (en) 1968-07-09

Family

ID=20301542

Family Applications (1)

Application Number Title Priority Date Filing Date
US599558A Expired - Lifetime US3391630A (en) 1965-12-09 1966-12-06 Spray painting tunnel

Country Status (10)

Country Link
US (1) US3391630A (zh)
BE (1) BE690969A (zh)
DE (1) DE1955811U (zh)
DK (1) DK123748B (zh)
ES (1) ES334309A1 (zh)
FI (1) FI50773C (zh)
FR (1) FR1504947A (zh)
GB (1) GB1111610A (zh)
NL (1) NL6617258A (zh)
SE (1) SE311490B (zh)

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3965805A (en) * 1975-06-09 1976-06-29 George Koch Sons, Inc. Spray finishing tunnel
US3967942A (en) * 1972-02-02 1976-07-06 Aktiebolaget Svenska Flaktfabriken Purifying apparatus
US4133255A (en) * 1977-03-21 1979-01-09 Guice John J Paint spray booth and method of painting an article therein
US4409889A (en) * 1981-11-02 1983-10-18 Burleson Maurice L Modular clean room
US4598633A (en) * 1983-02-02 1986-07-08 Durr Anlagenbau Gmbh Treatment booth
US4700615A (en) * 1986-01-03 1987-10-20 Protectaire Systems Co. Spray booth
US5113600A (en) * 1989-09-14 1992-05-19 Binks Manufacturing Company Combination paint spray booth-drying oven with single air fan
US5380243A (en) * 1992-07-27 1995-01-10 Abb Flakt Aktiebolag Air supply housing arrangement for paint spray booths
US5480349A (en) * 1994-12-19 1996-01-02 Ford Motor Company Paint spray booth air speed control
US6027566A (en) * 1994-02-24 2000-02-22 Blowtherm Canada, Inc. Paint spray booth
US20080047486A1 (en) * 2005-10-21 2008-02-28 Durr System, Inc. Coating Zone And Coating Plant
US8756827B1 (en) * 2011-05-12 2014-06-24 The Paint Booth Guys, Inc. Spray booth system and methods
CN113966253A (zh) * 2019-06-21 2022-01-21 塞弗拉合作社 用于向大体平坦的部件施用涂料的设备

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2413939A1 (fr) * 1978-01-09 1979-08-03 Budzinski Jean Cabine de peinture, pour vehicule automobile par exemple

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2944966A (en) * 1954-02-19 1960-07-12 Allen G Eickmeyer Method for separation of fluid mixtures
US3013781A (en) * 1957-03-15 1961-12-19 Haselden Geoffrey Gordon Fractionating apparatus
US3033541A (en) * 1957-09-19 1962-05-08 Standard Oil Co Vapor-liquid contacting
US3168030A (en) * 1961-12-22 1965-02-02 Svenska Flaektfabriken Ab Arrangement in spray-painting channels

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2944966A (en) * 1954-02-19 1960-07-12 Allen G Eickmeyer Method for separation of fluid mixtures
US3013781A (en) * 1957-03-15 1961-12-19 Haselden Geoffrey Gordon Fractionating apparatus
US3033541A (en) * 1957-09-19 1962-05-08 Standard Oil Co Vapor-liquid contacting
US3168030A (en) * 1961-12-22 1965-02-02 Svenska Flaektfabriken Ab Arrangement in spray-painting channels

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3967942A (en) * 1972-02-02 1976-07-06 Aktiebolaget Svenska Flaktfabriken Purifying apparatus
US3965805A (en) * 1975-06-09 1976-06-29 George Koch Sons, Inc. Spray finishing tunnel
US4133255A (en) * 1977-03-21 1979-01-09 Guice John J Paint spray booth and method of painting an article therein
US4409889A (en) * 1981-11-02 1983-10-18 Burleson Maurice L Modular clean room
US4598633A (en) * 1983-02-02 1986-07-08 Durr Anlagenbau Gmbh Treatment booth
US4700615A (en) * 1986-01-03 1987-10-20 Protectaire Systems Co. Spray booth
US5113600A (en) * 1989-09-14 1992-05-19 Binks Manufacturing Company Combination paint spray booth-drying oven with single air fan
US5460569A (en) * 1992-07-27 1995-10-24 Abb Flakt Ab Air supply housing arrangement for paint spray booths
US5380243A (en) * 1992-07-27 1995-01-10 Abb Flakt Aktiebolag Air supply housing arrangement for paint spray booths
US6027566A (en) * 1994-02-24 2000-02-22 Blowtherm Canada, Inc. Paint spray booth
US5480349A (en) * 1994-12-19 1996-01-02 Ford Motor Company Paint spray booth air speed control
US20080047486A1 (en) * 2005-10-21 2008-02-28 Durr System, Inc. Coating Zone And Coating Plant
US8015938B2 (en) * 2005-10-21 2011-09-13 Duerr Systems Inc. Coating zone and coating plant
US8756827B1 (en) * 2011-05-12 2014-06-24 The Paint Booth Guys, Inc. Spray booth system and methods
CN113966253A (zh) * 2019-06-21 2022-01-21 塞弗拉合作社 用于向大体平坦的部件施用涂料的设备
CN113966253B (zh) * 2019-06-21 2023-09-15 塞弗拉合作社 用于向大体平坦的部件施用涂料的设备

Also Published As

Publication number Publication date
GB1111610A (en) 1968-05-01
DE1577627B2 (de) 1975-09-04
SE311490B (zh) 1969-06-09
ES334309A1 (es) 1967-10-16
DK123748B (da) 1972-07-31
BE690969A (zh) 1967-05-16
DE1955811U (de) 1967-02-16
FI50773C (fi) 1976-07-12
NL6617258A (zh) 1967-06-12
DE1577627A1 (de) 1970-01-02
FR1504947A (fr) 1967-12-08
FI50773B (zh) 1976-03-31

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