US3798880A - Air cleaning apparatus - Google Patents

Air cleaning apparatus Download PDF

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Publication number
US3798880A
US3798880A US00256963A US25696372A US3798880A US 3798880 A US3798880 A US 3798880A US 00256963 A US00256963 A US 00256963A US 25696372 A US25696372 A US 25696372A US 3798880 A US3798880 A US 3798880A
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United States
Prior art keywords
air
zone
set forth
wash
flood sheet
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
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US00256963A
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English (en)
Inventor
O Arnold
C Vancini
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.)
Peabody Engineering Corp
Original Assignee
Peabody Engineering Corp
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 Peabody Engineering Corp filed Critical Peabody Engineering Corp
Priority to US00256963A priority Critical patent/US3798880A/en
Priority to DE2324233A priority patent/DE2324233A1/de
Priority to JP48056424A priority patent/JPS4943267A/ja
Priority to BE131464A priority patent/BE799967A/xx
Priority to FR7319074A priority patent/FR2185438A1/fr
Application granted granted Critical
Publication of US3798880A publication Critical patent/US3798880A/en
Anticipated expiration legal-status Critical
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D47/00—Separating dispersed particles from gases, air or vapours by liquid as separating agent
    • B01D47/02—Separating dispersed particles from gases, air or vapours by liquid as separating agent by passing the gas or air or vapour over or through a liquid bath
    • B01D47/022—Separating dispersed particles from gases, air or vapours by liquid as separating agent by passing the gas or air or vapour over or through a liquid bath by using a liquid curtain
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D47/00—Separating dispersed particles from gases, air or vapours by liquid as separating agent
    • B01D47/02—Separating dispersed particles from gases, air or vapours by liquid as separating agent by passing the gas or air or vapour over or through a liquid bath
    • B01D47/027—Separating dispersed particles from gases, air or vapours by liquid as separating agent by passing the gas or air or vapour over or through a liquid bath by directing the gas to be cleaned essentially tangential to the liquid surface
    • 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
    • B05B14/465—Arrangements for collecting, re-using or eliminating excess spraying material for use in spray booths by washing the air charged with excess material using substantially vertical liquid curtains or wetted walls behind the object to be sprayed
    • 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
    • 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
    • Y10S261/00—Gas and liquid contact apparatus
    • Y10S261/44—Overflow trough
    • 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
    • Y10S261/00—Gas and liquid contact apparatus
    • Y10S261/54—Venturi scrubbers
    • 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

  • SHEET 2 [IF 5 llllllll AIR CLEANING APPARATUS This invention relates to air cleaning apparatus for use in cleaning air within an enclosure, such as a room, or for cleaning air containing spray particles.
  • An object is to provide novel and improved means for efficiently removing and cleaning air which may be laden with droplets of a spray or with other particulate material.
  • Another object is to improve the quality of air in an enclosure and also to reduce or eliminate contamination of the outside atmosphere into which the air is discharged.
  • a more specific object is to provide an apparatus for use in connection with a paint spray or the like, which is adapted to remove the contaminations from the air efficiently before discharging air into the surrounding atmosphere.
  • a wall toward which the air is advanced is covered by a water film which flows downwardly along the surface of the wall to form a flood sheet.
  • the wall may be inclined to the vertical to facilitate the washing of the wall by the downward flow of water if desired.
  • This water is collected in a sump below the bottom of the wall under which the air flows into a washing zone wherein contaminants are removed. After washing, the air passes through a drying zone to remove the wash liquid and is then discharged into the atmosphere or recirculated.
  • FIG. 1 is a vertical longitudinal section through air washing and drying apparatus embodying the invention
  • FIG. 2 is a partial section taken on the line 22 of FIG. 1 showing the details of the device for cleaning the top portion of the flood sheet;
  • FIG. 3 is a longitudinal section, similar to FIG. 1, illustrating a further embodiment of the invention.
  • FIG. 4 is a partial transverse section taken on the line 4-4 of FIG. 3 illustrating a further form of cleaning element for removing deposits from the top portion of the flood sheet;
  • FIG. 5 is a longitudinal section, similar to FIG. 3, and illustrating a still further embodiment of the invention.
  • FIG. 6 is a top plan view of an apparatus adapted to be disposed as a unit in an enclosure for air cleaning purposes;
  • FIG. 7 is a vertical section taken on the line 77 of FIG. 6.
  • FIGS. 1 and 2 the invention is shown in FIGS. 1 and 2 as embodied in an enclosure 10, which may constitute a room of any size containing dust or spray laden air which is to be cleaned.
  • the enclosure 10 has side walls 11 between which an air cleaning unit including a flood sheet 12 is disposed in a position such that the air from the enclosure is withdrawn over the flood sheet and into a cleaning unit in a manner to be described.
  • the unit may, for example, be disposed near the end of the enclosure or at one side thereof so that the flood sheet l2 forms in effect one of the walls of the enclosure.
  • a layer or film of water or other solvent is continuously passed over the flood sheet for entrapping and removing particulate material from the air which contacts the flood sheet and for removing any deposits of such material therefrom.
  • the top of the flood sheet forms a weir 15 over which wash liquid flows from a channel 16.
  • the rear wall 17 of the channel 16 may contact the ceiling, not shown, of the enclosure 10 to prevent the passage of air between the ceiling and the unit.
  • the sides of the flood sheet 12 may likewise form an air seal with the side walls 11 of the enclosure so that all of the air is caused to pass through the cleaning unit.
  • Water or other solvent is supplied to channel 16 by suitable means such as pipe 19, and flows over the weir 15 and downwardly over the surface of the flood sheet 12 into a reservoir 20.
  • the reservoir 20 is disposed on the floor 21 of the enclosure 10 and carries a liquid layer 22 from which the bottom of the flood sheet 12 is spaced to provide a passage 23 for air flow out of the enclosure 10.
  • the flood sheet 12 is shown as inclined to the vertical by a small amount so as to cause the water film to flow along its surface in its path from the weir 15 to the reservoir 20. It may however extend vertically if desired.
  • a screw type scraper 25 is disposed along the top edge 15 and is formed with helical vanes which scrape along the top surface as the screw is rotated.
  • This scraper is journalled in bearing blocks 26 at each end and is rotated by a motor 27 through a gear box 28.
  • the bearing blocks 26 are pivotally supported on rear wall 17 and are adjustable by threaded rods 29 which are supported by brackets 30 and are provided with cranks 31 at their upper ends. These threaded rods permit the screw 25 to be adjusted relative to the top edge 15.
  • the screw 25 may be rotated continuously for cleaning the top edge of the wall or may be elevated out of the path of the liquid when not in use.
  • a housing 35 enclosing a washing and drying zone is disposed rearwardly of the flood sheet 12 above the reservoir 20.
  • the drying zone is formed by a pair of baffle plates 36 which extend across the housing 35 in spaced relationship and are formed with openings 37 communicating with drying units 38 which are adapted to remove entrained liquid droplets by impingement and by inertia as the air flows therethrough in a curved path as shown more in detail in copending US. Pat. application Ser. No. 155,916, filed June 23, l97l (P-l70). While this specific type of drying unit is shown for purposes of illustration, it is obvious that other standard types of dryer units may be used in the present combination.
  • the washed and dried air is discharged by a blower 40 which serves to induce the flow of air from the enclosure 10 and through the washing and drying zones.
  • the washing zone includes a washing unit disposed above an opening 46 in a cover 47 for the reservoir 20.
  • a curved deflector plate 48 extends across the housing 35 with its lower end 49 spaced above the level of the liquid layer in the reservoir 20 so that the air from the washing unit 45 passes downwardly under the lower edge 49 of the deflector plate 48 and then upwardly into the drying zone. Due to this reversal in direction the heavier droplets in the air stream are caught in the liquid layer in the reservoir and are removed from the air stream.
  • An inner concentric post 50 is carried by a water pipe 51 which extends through the deflector plate 48 and is provided at its lower end with a spray head 52 to direct a spray of water across the annular passage 53 between the wall of the unit 45 and the inner post 50.
  • a constricting ring 54 may be disposed in the unit 45 at or above the level of the water spray from the spray head 52.
  • Air washing apparatus of this type is shown more in detail in the copending application above mentioned. However, other standard types of gas washing units may be used in the present combination if desired. If the flood sheet is sufficiently wide laterally a plurality of such washing units may be disposed along the wall to communicate with a succession of openings in the cover 47 and the washed air from the entire group may be passed into the drying zone above described.
  • the flood sheet 12 may be supported by the cover 47 and by the housing 35.
  • the reservoir 20 extends beyond the flood sheet to form a sump adapted to receive the liquid which flows downwardly over the flood sheet.
  • the spray or dust laden air in the enclosure is withdrawn continuously from the enclosure and is passed under the flood sheet into the washing zone wherein the contaminants are removed by the kinetic energy of the spray liquid from the spray head 52. Larger particles are removed into the liquid in the sump by inertia as the air stream reverses in direction under the flood sheet 12. Any particles which impinge on the water film on the flood sheet are also discharged into the liquid in the reservoir 20.
  • the air After washing the air is reversed in direction to flow downwardly by the deflector plate 48 and is again reversed as it flows under the lower edge 49 of the deflector 48 and upwardly into the drying zone. Thus, additional droplets are removed by inertia and the remaining Thus material is removed in the drying zone by the baffle plates 36.
  • the clean air may be discharged into the atmosphere or may be recycled as desired.
  • the enclosure 55 is similar to that of FIG. 1 except that the flood sheet is composed of two parts 560 and 56b which are relatively offset and separated by a discharge opening 57 through which the contaminated air passes into the washing zone.
  • the upper portion 56a forms a weir 58 over which water from a channel formed by bottom wall 59 and back wall 60 flows to wash the forward surface of the flood sheet. Wash water may be supplied to this channel by an inlet pipe 19a.
  • a saw toothblade 61 is mounted for longitudinal movement on a bar 62, as by pins and slots 63 and may be reciprocated by any suitable means such as a link 64.
  • the bar 63 is mounted for vertical adjustment on blocks 66 which are carried on threaded vertical rods 67 having adjusting handles 68.
  • the arrangement is such that the blade can be raised or lowered or oscillated to scrape the upper portion of the weir as desired and may be elevated out of the path of the liquid when not in use.
  • the lower edge of the flood sheet 56b forms a water seal with the wash liquid 70 in a reservoir 71.
  • the reservoir 71 extends beyond the flood sheet 56b and carries a cover 72 having an opening 73 registering with the bottom discharge portion of a cylindrical wash unit 74.
  • the unit 74 has its inlet adjacent the discharge opening 57 and such air is directed into the inlet opening 75 of the unit 74 by deflector plate 76.
  • the unit 74 carries an axial spray nozzle 77 mounted on a spray pipe 78. This nozzle ejects a radial spray of wash water through which the gases pass.
  • a ring member 79 may be disposed in the unit 74 to constrict the gas passage in the zone of the spray and produce a venturi-like effect.
  • the washed gases which are discharged from the unit flow along the air space above the liquid 70 in the reservoir 71 and upward into a drying chamber 80 having a drying element 81 adapted to remove liquid droplets from the air which is then discharged by a blower 82.
  • the drying unit may be of any standard type and is shown for illustration as comprising a series of curved deflector blades over which the air passes with a sufficient change in direction to remove the liquid droplets by inertia. Such a unit is shown more in detail in copending U.S. Pat. application Ser. No. 187,760, filed Oct. 8, 1971 (P-l76).
  • this form of spray booth is similar to that above described except that the air flows dowpwardly from the opening in the flood sheet and deposits large droplets directly into the liquid 70 in the reservoir 71 while the remaining droplets are removed by the drying unit 81.
  • the screw type scraper of FIG. 2 may be substituted for the scraper blade of FIG. 4 or vice versa as desired in any particular installation.
  • the flood sheet is arranged to discharge air both from a central opening and through a reservoir below the lower edge of the sheet.
  • Separate washing units are provided for the two discharge zones, with both units discharging into a common drying zone.
  • the flood sheet is composed of upper and lower parts a and 90b having a discharge passage 91 therebetween.
  • the upper portion 90a is formed with a weir 92 over which liquid from a channel 93 flows as in the previous figures.
  • the weir is provided with a screw scraper 25a which is similar to that of FIG. 1.
  • the lower portion 90b is formed with a similar weir 94 over which liquid from a channel 95 flows in a sheet and into the reservoir 20a. Wash water may be supplied to the channels 93 and 95 by inlet pipes 19b.
  • the two portions 90a and 90b are substantially in line so that liquid which flows downwardly over the surface of the upper portion 90a is collected in the lower channel 95 and flows down over the surface of the lower portion 90b into the reservoir 20a.
  • the lower weir may have a cleaning device such as the scraper blade of FIG. 4 or the screw scraper of FIG. 2 if found necessary. This will depend upon the nature of the material being treated.
  • the reservoir 20a extends beyond the flood sheet 90b and has a cover on which is mounted a washing unit 101 similar to the unit 45 of FIG. 1.
  • This unit has a side discharge opening 102 at its upper end and is provided with a spray head 103.
  • a second washing unit is mounted above the unit 101. Air discharged from the passage 91 between the upper part 900 and lower part 90b of the flood sheet is passed into the lower end of this unit 110 by deflector plates 111.
  • the unit 110 is provided with a side discharge opening 112 at its upper end.
  • Washed air which is discharged from the discharge openings 102 and 112 is passed downwardly by deflector plate 114 and after passing under the lower edge 115 of this plate passes into the drying zone 116 having a drying unit 117 similar to that above described in connection with FIG. 3 or of other standard type in which the entrained droplets are removed.
  • the dried air is then discharged by a blower 118.
  • the operation of this form is similar to that above described except that the air stream is split into two parts which are separately washed.
  • the washing units in FIG. 5 are shown as of the updraft type. It is to be understood, however, that these units can be of any standard type and may be used in various combinations.
  • the upper unit may be of the down draft type so that the discharge openings are both in the intermediate zone.
  • the spray heads in the two washers may be carried by the same water pipe 119 which extends along both units or they may be individiually supplied as desired.
  • FIGS. 6 and 7 illustrate an air cleaning unit which is generally similar to that of FIG. 3, but is adapted to be used in an intermediate position in an enclosure such as a room as distinguished from being used in a position such that the flood sheet forms one of the walls of the enclosure.
  • the unit includes four flood sheets 120 which are disposed around the periphery of the unit to form in effect an enclosure for the unit.
  • the enclosure is shown as rectangular in form but may obviously be of any desired shape.
  • three flood sheets may be disposed in triangular relationship or a cylindrical flood sheet may be used.
  • the flood sheets 120 are shown as inclined inwardly for the flow of water downwardly along the surface thereof, and the wash water is shown as supplied from a pipe 121 which extends along the upper portion of the respective flood sheets and is provided with suitable openings for discharging a spray of water onto the upper surface of the same.
  • the wash water may be supplied by weirs as shown in FIG. 3, if desired.
  • Flood sheets 120 are supported on the cover 72a of a reservoir 71a and form a water seal with the liquid therein.
  • the reservoir 71a extends beyond the various flood sheets to form sumps into which the wash water drains, as in FIG. 3.
  • a plurality of washing units 740 are shown as extending along the flood sheets 120 and supported by the cover 72a of the reservoir. These units 74a may be similar to the units 74 above described. Air to be cleaned is supplied through ports 122 in the flood sheets 120 and through ducts 123 to the tops of the respective washing units 74a for washing as it passes downwardly through said units into the space above the liquid in the reservoir 71a.
  • the washed air passes upwardly from the reservoir through a housing 124 into a drying and discharge zone, not shown, which may be similar to that described in connection with FIG. 3.
  • the air cleaning apparatus above described may be used for cleaning the air in a room or for cleaning the air from a booth such as a spray booth, wherein the air is subjected to a concentrated spray such as a paint spray.
  • the contaminants may thus be removed before the air is discharged to the atmosphere or before the air is recirculated.
  • Air cleaning apparatus comprising a flood sheet disposed in the path of the air to be cleaned, means passing wash liquid over the surface of said flood sheet for cleaning the surface and forming a first wash zone for said air, wherein the upper part of said flood sheet forms a weir over which said liquid flows, scraper means connected to said weir and operatively constructed and arranged for removing deposits from said weir, air washing units disposed beyond said flood sheet forming a second wash zone, means passing said air from said first wash zone through said air washing units in said second wash zone, a drying zone, means passing the air from said second wash zone through said drying zone for the removal of entrained particles and droplets and means discharging the washed and dried air from said drying zone.
  • Apparatus as set forth in claim 1 including a receiver for said wash liquid extending below said flood sheet and said second wash zone and said drying zone and means discharging wash liquid and entrained particles from each of said zones into said receiver.
  • said scraper means includes a shaft having helical vanes and means to rotate said shaft to cause said vanes to scrape the top of said weir.
  • Apparatus as set forth in claim 3 including means to adjust the position of said shaft relative to said weir.
  • said scraper means includes a blade having a saw tooth lower edge and means for reciprocating said blade laterally and for adjusting the vertical position thereof.
  • said flood sheet comprises upper and lower portions separated by an air passage, and including means passing air from said passage through said second washing zone.
  • Apparatus as set forth in claim 8 in which a weir is provided at the top of each of said portions for causing a wash liquid to flow downwardly over the surface of the respective portions.
  • Apparatus as set forth in claim 7 in which said lower portion is spaced above the liquid in said receiver to form a second air passage, and air washing means is disposed in said second wash zone to receive air from each of said passages for washing.
  • Apparatus as set forth in claim 11 in which flood sheet forms an enclosure and said second wash washed air from said second wash zone is passed zone and said drying zone are disposed within said enthrough a common drying zone. closure.

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Separation Of Particles Using Liquids (AREA)
  • Drying Of Solid Materials (AREA)
  • Cleaning By Liquid Or Steam (AREA)
US00256963A 1972-05-25 1972-05-25 Air cleaning apparatus Expired - Lifetime US3798880A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
US00256963A US3798880A (en) 1972-05-25 1972-05-25 Air cleaning apparatus
DE2324233A DE2324233A1 (de) 1972-05-25 1973-05-14 Luftreinigungsvorrichtung
JP48056424A JPS4943267A (de) 1972-05-25 1973-05-22
BE131464A BE799967A (fr) 1972-05-25 1973-05-24 Appareil de purification d'air,
FR7319074A FR2185438A1 (de) 1972-05-25 1973-05-25

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US00256963A US3798880A (en) 1972-05-25 1972-05-25 Air cleaning apparatus

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US3798880A true US3798880A (en) 1974-03-26

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Family Applications (1)

Application Number Title Priority Date Filing Date
US00256963A Expired - Lifetime US3798880A (en) 1972-05-25 1972-05-25 Air cleaning apparatus

Country Status (5)

Country Link
US (1) US3798880A (de)
JP (1) JPS4943267A (de)
BE (1) BE799967A (de)
DE (1) DE2324233A1 (de)
FR (1) FR2185438A1 (de)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4305737A (en) * 1977-12-12 1981-12-15 The Ducon Company Horizontal venturi scrubber
US5741178A (en) * 1994-12-09 1998-04-21 Binks Manufacturing Company Reducing area, increasing velocity paint booth structure and method
US6027566A (en) * 1994-02-24 2000-02-22 Blowtherm Canada, Inc. Paint spray booth
US6837931B1 (en) 2004-01-29 2005-01-04 Thierica, Inc. Fluid washer for a spray booth
WO2010097227A2 (de) * 2009-02-27 2010-09-02 Man Diesel, Filial Af Man Diesel Se, Tyskland Verfahren und vorrichtung zur reinigung von motorabgas
CN107375989A (zh) * 2017-07-31 2017-11-24 宣城尤达美智能科技有限公司 一种空气净化装置

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Publication number Priority date Publication date Assignee Title
JPS5318064A (en) * 1976-08-02 1978-02-18 Koyo Kensetsu Kougiyou Kk Electric dust collecting method and system
JPS56149445A (en) * 1980-04-22 1981-11-19 Bridgestone Corp Improved pneumatic tire
JPS5725338A (en) * 1980-07-22 1982-02-10 Sumitomo Rubber Ind Ltd Rubber composition for tread inner layer
JPS5734139A (en) * 1980-08-07 1982-02-24 Sumitomo Rubber Ind Ltd Rubber composition for undertread
FI87541C (fi) * 1991-04-19 1993-01-25 Outokumpu Research Oy Flergastvaettare
CN112999790A (zh) * 2021-03-17 2021-06-22 励晶 一种城市建筑用高效降尘土设备

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US650569A (en) * 1900-02-15 1900-05-29 Frank M Pratt Mechanism for discharging contents of tanks.
US2489456A (en) * 1945-08-21 1949-11-29 Robert A Liebel Method of applying uniform coating by immersion
US2527139A (en) * 1948-09-04 1950-10-24 Western Electric Co Spray booth
US2539340A (en) * 1945-02-01 1951-01-23 White Gilbert John Distributor
US2899183A (en) * 1959-08-11 Gas washing apparatus
US2906511A (en) * 1956-05-01 1959-09-29 Ajem Lab Inc Gas washing apparatus
US2989836A (en) * 1958-08-18 1961-06-27 Schaffer Arthur All-purpose rake
US3426729A (en) * 1967-05-25 1969-02-11 Indev Inc Apparatus for flocking articles

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2899183A (en) * 1959-08-11 Gas washing apparatus
US650569A (en) * 1900-02-15 1900-05-29 Frank M Pratt Mechanism for discharging contents of tanks.
US2539340A (en) * 1945-02-01 1951-01-23 White Gilbert John Distributor
US2489456A (en) * 1945-08-21 1949-11-29 Robert A Liebel Method of applying uniform coating by immersion
US2527139A (en) * 1948-09-04 1950-10-24 Western Electric Co Spray booth
US2906511A (en) * 1956-05-01 1959-09-29 Ajem Lab Inc Gas washing apparatus
US2989836A (en) * 1958-08-18 1961-06-27 Schaffer Arthur All-purpose rake
US3426729A (en) * 1967-05-25 1969-02-11 Indev Inc Apparatus for flocking articles

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4305737A (en) * 1977-12-12 1981-12-15 The Ducon Company Horizontal venturi scrubber
US6027566A (en) * 1994-02-24 2000-02-22 Blowtherm Canada, Inc. Paint spray booth
US5741178A (en) * 1994-12-09 1998-04-21 Binks Manufacturing Company Reducing area, increasing velocity paint booth structure and method
US6837931B1 (en) 2004-01-29 2005-01-04 Thierica, Inc. Fluid washer for a spray booth
WO2010097227A2 (de) * 2009-02-27 2010-09-02 Man Diesel, Filial Af Man Diesel Se, Tyskland Verfahren und vorrichtung zur reinigung von motorabgas
WO2010097227A3 (de) * 2009-02-27 2011-02-10 Man Diesel & Turbo, Filial Af Man Diesel & Turbo Se, Tyskland Verfahren und vorrichtung zur reinigung von motorabgas
CN102333938A (zh) * 2009-02-27 2012-01-25 曼柴油机涡轮机欧洲股份公司曼柴油机涡轮机德国分公司 用于净化发动机废气的方法和设备
CN102333938B (zh) * 2009-02-27 2013-10-02 曼柴油机涡轮机欧洲股份公司曼柴油机涡轮机德国分公司 用于净化发动机废气的方法和设备
CN107375989A (zh) * 2017-07-31 2017-11-24 宣城尤达美智能科技有限公司 一种空气净化装置

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DE2324233A1 (de) 1973-12-13
BE799967A (fr) 1973-09-17
JPS4943267A (de) 1974-04-23
FR2185438A1 (de) 1974-01-04

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