US3443362A - Precipitator - Google Patents

Precipitator Download PDF

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Publication number
US3443362A
US3443362A US471559A US3443362DA US3443362A US 3443362 A US3443362 A US 3443362A US 471559 A US471559 A US 471559A US 3443362D A US3443362D A US 3443362DA US 3443362 A US3443362 A US 3443362A
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Prior art keywords
conduit
gas
elements
ions
shaft
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US471559A
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English (en)
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Paul Richard Ebert
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Priority claimed from FR981967A external-priority patent/FR1406733A/fr
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F8/00—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying
    • F24F8/10—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering
    • F24F8/192—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering by electrical means, e.g. by applying electrostatic fields or high voltages
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D45/00—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces
    • B01D45/12—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces by centrifugal forces
    • B01D45/14—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces by centrifugal forces generated by rotating vanes, discs, drums or brushes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34—Chemical or biological purification of waste gases
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C3/00—Separating dispersed particles from gases or vapour, e.g. air, by electrostatic effect
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C3/00—Separating dispersed particles from gases or vapour, e.g. air, by electrostatic effect
    • B03C3/02—Plant or installations having external electricity supply
    • B03C3/04—Plant or installations having external electricity supply dry type
    • B03C3/10—Plant or installations having external electricity supply dry type characterised by presence of electrodes moving during separating action
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C3/00—Separating dispersed particles from gases or vapour, e.g. air, by electrostatic effect
    • B03C3/34—Constructional details or accessories or operation thereof
    • B03C3/40—Electrode constructions
    • B03C3/41—Ionising-electrodes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
    • B66F9/00—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes
    • B66F9/02—Stationary loaders or unloaders, e.g. for sacks
    • B66F9/04—Stationary loaders or unloaders, e.g. for sacks hydraulically actuated or controlled
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES 
    • F23J11/00—Devices for conducting smoke or fumes, e.g. flues 
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES 
    • F23J15/00—Arrangements of devices for treating smoke or fumes
    • F23J15/02—Arrangements of devices for treating smoke or fumes of purifiers, e.g. for removing noxious material
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F8/00—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying
    • F24F8/30—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by ionisation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C2201/00—Details of magnetic or electrostatic separation
    • B03C2201/10—Ionising electrode has multiple serrated ends or parts
    • 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
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
    • Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
    • 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
    • Y10S261/09—Furnace gas 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
    • Y10S55/38—Tubular collector electrode

Definitions

  • the elements are each provided with relatively sharp projections extending laterally in a direction opposite to the direction of element rotation.
  • a DC. current generator is connected to the elements in order to produce an electric potential between the elements and the conduit wall. The magnitude of the potential is such that ions are caused to escape from the sharp projections. The reaction of the escaping ions causes the elements to rotate, and any particles contacted by the ions are propelled against the interior conduit wall, which is continuously being washed by a downward flow of water.
  • This invention relates to gas cleaning apparatus and more particularly to an improved electrical precipitator.
  • the present invention is distinguishable from the known systems mentioned above in that ionization of the exhaust gases and smoke and particularly of the particles that they contain, is intensified to such a degree that a reduced trajectory and a reduced time are sufficient for the realization of the desired effect.
  • ionization of the exhaust gases and smoke and particularly of the particles that they contain is intensified to such a degree that a reduced trajectory and a reduced time are sufficient for the realization of the desired effect.
  • a further intensification of the purifying effect may also be obtained on the one hand by accelerating vane rotation with the aid of compressed air, steam, oxygen, and other appropriate gaseous substances, and on the other hand by utilizing a spray of absorbent or neutralizing liquids or powders.
  • a flow of water or of gas-absorbent liquids may also be provided on the separating surfaces in the exhaust conduit or in the chimney, as well as a blower device.
  • the invention includes in addition, for supplying the vanes with electric current, a high voltage generator which first produces electrons, and as the voltage increases, ions, as well as its special supply cable constituted of a sheath of plastic material filled with a conductive fluid of a variable resistance.
  • the present system may be installed at small expense on any existing conduit, without requiring a special emplacement.
  • the high voltage generator which may be of known construction, is connected in a manner which precludes short-circuit hazards and presents no danger of electrocution.
  • the vanes and propellers, from which the ions emerge, are applicable unconditionally for any gas purification operation, are not expensive, and may be mounted even in small chimneys.
  • FIGURE 1 is a schematic illustration of one embodiment of the present invention adapted for use with a chimney having a single flue;
  • FIGURE 2 is a View similar to FIGURE 1, modified to include several rotatable vanes, and with the high voltage generator positioned in the interior of the chimney;
  • FIGURE 3 relates to the same basic arrangement as that shown in FIGURE 2, but with the high voltage generator positioned exterior of the chimney;
  • FIGURES 4-9 illustrate alternate embodiments of the rotatable propellers or vanes
  • FIGURES 10 and 11 are schematic illustrations showing alternate embodiments of the invention adapted for purification of air being drawn into buildings;
  • FIGURE 12 is a schematic illustration of still another embodiment of the invention.
  • FIGURE 13 is an enlarged schematic view, partially in section of a rotor having supplemental pneumatic propulsion means which also serves for the cleaning or purging of the device;
  • FIGURE 14 shows another means of supplemental rotor propulsion by compressed air
  • FIGURE 15 relates to a means of supplemental rotor propoulsion with the aid of a turbine
  • FIGURE 16 shows a high-voltage current-feed conductor with conditioned resistance in the form of a fluid filled cable.
  • a chimney or exhaust conduit 1 is shown provided with a cap 2 having an adjustable opening open to the atmosphere.
  • a vane 3 is rotatably mounted within the conduit 1 and connected to a conventional high voltage D.C. generator 4.
  • the cap 2 sets up a supplemental pressure in conduit 1, without adversely affecting draft. Tests have confirmed the fact that in many cases, better and more rapid separation of impurities from gases passing through the conduit is capable of being achieved with such a supplemental pressure.
  • the high voltage generator 6 is placed at the very bottom of the chimney and combined with a support 7 carrying several vanes or propellers 8, 9 and 10.
  • the smoke or gases are drawn by natural draft from the lateral conduit 11 into the chimney 12 in the direction indicated diagrammatically by arrow 13.
  • the high voltage current coming from generator 6 is preferably negative.
  • metal conduits or in the alternative non-metallic conduits provided with a grounded metal lining.
  • the chimney or lining may be positively charged. All of these arrangements facilitate cleaning because of the layer of particles being deposited on the inner surface of the chimney will eventually become detached due to its own weight, thereafter falling to the base of the chimney where it can be easily removed. The same is of course true of liquid deposits.
  • FIGURE 3 The embodiment of the invention shown in FIGURE 3 is distinguishable from that shown in FIGURE 2 only by the placing of the high voltage generator 6 on the exterior of the conduit, the supports 14 for carrying the vanes or propellers 15, 16, 17 passing through the wall of the conduit, as well as the power supply being carried by an external supply cable 18.
  • the vanes or propellers may assume any number of varied form.
  • the vane has three arms 19, with multiple points 20 arranged adjacent the end of each arm in the form of a fringe.
  • the vane is further provided with supplemental points 21 located on the hub.
  • the propeller in FIGURE has blades 22, the trailing edge of each being notched to form points 23 from which the ions can escape.
  • supplemental points 24 are provided on the hub.
  • blade 25 of the propeller is equipped with inserted points 26.
  • the vane is provided arms 27 equipped with points 28 in the manner of a comb.
  • FIGURE 8 shows a vane assembly in which there is mounted on a vertically disposed supporting shaft 64 a roller 65 held against axial movement by bearings 66.
  • Roller 65 is equipped with points 67 and flanked at the ends with hollow radially disposed arms 68 equipped with nozzles 69 which likewise terminate in points.
  • a vane assembly comprising two vertically spaced casings 71 forming bearings mounted on the shaft 64.
  • Each casing 71 is in turn provided with radially disposed arms 72 connected by vertical rods 73 equipped with points 74.
  • the arms 72 may be hollow and may be provided with nozzles 75 and points 76.
  • vanes may be superimposed, and their speed of rotation and their emission rate of ions regulated at will for the purpose of obtaining a steady separation at a constant voltage.
  • FIGURE 10 In the embodiment of the invention shown in FIGURE 10, which is intended more particularly for the purification of air in buildings, the air is drawn in by intake fans 29 mounted in shafts 30 towards the vane 31 disposed for example in series in conduit 32 which is lined with a metallic tube 33. The latter is made detachable to permit removing it periodically for cleaning the deposits which adhere to it.
  • a high voltage generator is designated by the reference numeral 34 located in a pit beneath the junction of conduit 32 with shafts 30.
  • FIGURE 11 a plurality of vanes are aligned in a horizontally disposed conduit 35.
  • Each vane has a pair of blades 36 equipped with needles, of the type for example shown in FIGURE 6.
  • the vanes are each connected electrically to the high voltage generator 37 by a conduit 38 which is in turn connected to a fixed central shaft 39 mounted with the aid of appropriate supports 40.
  • a removable metallic lining 41 is likewise provided to facilitate cleaning.
  • the blades 36 in turning under the effect of the ions, draw in and stir the gases, as well as providing an ionization means to precipitate particles from the gas.
  • the vanes or propellers 42 are mounted on a hollow shaft 43 held on a pedestal base 44 of insulating material.
  • the shaft 43 is energized by the high voltage generator 45 to which it is connected by the cable 46.
  • the interior of shaft 43 is filled with a gas such as air under pressure, coming from a compressor 47 to which the shaft is connected by pipe 48.
  • the vanes or propellers 42 preferably mounted on shaft 43 by means of ball bearings 49 (FIG. 13) have hollow arms 42.
  • the air or other gas under pressure from compressor 47 will pass upwardly through the interior of shaft 43, through openings 50 (as indicated by the arrow A) into the hollow arms, thereafter escaping through orifices 51 as indicated by the arrow B.
  • the flow of pressurized air will provide a cooling effect for the shaft 43, bearings 49 as Well as the hollow arms 42 extending radially therefrom.
  • the air pressure will also aid in excluding contaminants from the bearings and, if oil is entrained with the air, the bearings may be continuously lubricated.
  • auxiliary gas propulsion may also be provided, as shown in FIG. 14, by nozzles 53 on shaft 43 in communication with the interior thereof. Air escaping under pressure from nozzle 53 will travel along lines indicated diagrammatically by the arrows C, to inpinge upon the arms 42, thereby providing a supplementary propulsion means as Well as means for cleaning the surfaces of the arms.
  • nozzles 53 on shaft 43 in communication with the interior thereof. Air escaping under pressure from nozzle 53 will travel along lines indicated diagrammatically by the arrows C, to inpinge upon the arms 42, thereby providing a supplementary propulsion means as Well as means for cleaning the surfaces of the arms.
  • a turbine 54 fed by the gases under pressure through nozzles 55 in shaft 43 along the arrows D.
  • a washing device 57 which produces a flow of liquid over the inner surfaces of the chimney wall.
  • water or liquids susceptible of absorbing the gases or of entering into chemical combinations with them may be employed; this operation may take place either under normal pressure, or under increased pressure obtained for example with the aid of a rotary pump.
  • the particles adhering to the walls are detached and carried by the flow of liquid to the exterior of the chimney through openings 58, after having been collected by the chutes 59 and 60.
  • a liquid such as for example carbon monoxide with a solution of copper chloride may be utilized.
  • the vapors which are released under the effect of high temperatures are very beneficial from the point of view of the ionization and the separation action which it exerts.
  • the temperature of the conduit is insuffcient for vaporization, the liquid may be preheated.
  • the high voltage generator 45 may be of the cascade potential type and is combined with a high frequency transformer. Due to the fact that it is thus possible to increase the frequency of normal current, it is possible to obtain an increased output from a given high voltage generator. In other words, the high voltage generator may, in spite of its high output, be held to small dimensions resulting in a lowering of the installation cost and also that of possible repairs. In addition, this device permits providing a reserve of power which, with the aid of an appropriate regulator, may be drawn on according to the need. A single high voltage generator may serve for the supply of several installations.
  • the cable 46 utilized for bringing the high voltage current from the generator to the electrodes is preferably of the type consisting of a sleeve 61 (FIGURE 16) of an appropriate plastic material, such as polyvinyl chloride or other, filled With a conductive fluid 62 of variable resistance.
  • the plugs at the two ends are metallic and are formed into contractors 63.
  • the construction of such a cable filled with fluid is much less costly than the price of a regular cable.
  • the diameter of the cable may be reduced substantially while increasing safety, due to the fact that in case of damage, the absence of the conductive liquid due to its escape, cuts off the current immediately.
  • Such a cable has only a slight electrical capacitance and its electrical resistance may, because of the fluid that it contains, be modified at will.
  • the rotative elements in these embodiments are driven solely by a reactive force produced by the escaping ions. Because the elements rotate as they continuously emit ions, more particles will be precipitated from moving gas. In addition, the rotating elements will disturb the otherwise smooth flow of gas in the conduit, thus temporarily retarding the gas in the operative range of the ion-emitting elements. These factors will combine to provide a more efiicient gas cleaning operation which is capable of handling greater gas volumes without a corresponding increase in the size or cost of the apparatus.
  • an auxiliary force is provided to insure rotation of the elements at the desired speed.
  • This force is provided by compressed gas which may be fed to nozzles on the support shaft and/or rotating element, or to small turbine devices connected to the elements. Where the gas impinges directly on the elements, it will in addition to providing additional rotative force, also clean and cool the elements. The same is true where the gas is passed through hollow extensions on the elements to thereafter exit through nozzles which provide a jet action tending to accelerate element rotation.
  • use of a compressed gas protects the various bearings from overheating and contamination by the particles being precipitated.
  • a vertically extending walled conduit having gas flowing axially therethrough, an electric precipitator means within said conduit for removing suspended particles from said gas comprising in combination: a plurality of vertically spaced apart elements, each of said elements being independently rotatably mounted within said conduit for rotation independent of each other in one direction about a stationary shaft which is parallel to the flow of gas through said conduit and the longitudinal axis of said conduit; a plurality of relatively sharp projections on each said elements, said projections being arranged to extend laterally from said elements in a direction opposite to the direction of rotation thereof; means for producing an electric potential between said elements and the wall of said conduit, said potential being of a magnitude sufliicient to cause ions to escape from said projections towards the wall of said conduit, whereby the particles contacted by said ions will be propelled towards the wall of said conduit to accumulate thereagainst, and the said elements will be rotated by the reaction of the ions escaping therefrom; and means for continuously washing the interior surfaces of said conduit in order to remove the particles being deposited there
  • said cleaning device is comprised of means at the upper end of said conduit for radially directing water against the interior wall of said conduit; and a collecting trough extending inwardly from said wall at the lower end of said conduit, the said trough being positioned to receive the water and particles flowing downwardly along the interior surface of said wall.
  • each said elements being mounted for rotation about a hollow stationary shaft, each said elements having axial passageways in communication at one end with the interior of said shaft and at the other end with nozzles carried by said elements, and a source of pressurized gas connected to said hollow shaft, whereby the reaction produced by gas flowing through said shaft and passageways to escape from said nozzles will supplement the reaction of ions escaping from the projections on said elements, thus accelerating rotation of said elements about said shaft.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Structural Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Transportation (AREA)
  • Biomedical Technology (AREA)
  • Environmental & Geological Engineering (AREA)
  • Analytical Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Civil Engineering (AREA)
  • Electrostatic Separation (AREA)
  • Treating Waste Gases (AREA)
  • Cyclones (AREA)
US471559A 1964-07-15 1965-07-13 Precipitator Expired - Lifetime US3443362A (en)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
FR981967A FR1406733A (fr) 1964-07-15 1964-07-15 Procédé et dispositif applicables aux conduits de fumée et installations de ventilation pour purifier les gaz et assainir l'air pollué
FR1203A FR87149E (fr) 1964-07-15 1965-01-07 Procédé et dispositif applicables aux conduits de fumée et installations de ventilation pour purifier les gaz et assainir l'air pollué
FR15481A FR87986E (fr) 1964-07-15 1965-04-30 Procédé et dispositif applicables aux conduits de fumée et installation de ventilation pour purifier les gaz et assainir d'air pollué
FR99893A FR92315E (fr) 1964-07-15 1967-03-22 Procédé et dispositif applicables aux conduits de fumée et installations de ventiltion pour purifier les gaz et assainir l'air polluée
FR140603A FR93987E (fr) 1964-07-15 1968-02-19 Procédé et dispositifs applicables aux conduits de fumée et installations de ventilation pour purifier les gaz et assainir l'air pollué.

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US3443362A true US3443362A (en) 1969-05-13

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US471559A Expired - Lifetime US3443362A (en) 1964-07-15 1965-07-13 Precipitator
US714469A Expired - Lifetime US3492790A (en) 1964-07-15 1968-03-20 Gas cleaning apparatus and more particularly to an improved electrical precipitator

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Application Number Title Priority Date Filing Date
US714469A Expired - Lifetime US3492790A (en) 1964-07-15 1968-03-20 Gas cleaning apparatus and more particularly to an improved electrical precipitator

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US (2) US3443362A (xx)
BE (2) BE666821A (xx)
CH (2) CH446591A (xx)
DE (4) DE6606015U (xx)
FR (4) FR87149E (xx)
NL (2) NL6509093A (xx)
SE (1) SE364645B (xx)

Cited By (19)

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Publication number Priority date Publication date Assignee Title
US3688475A (en) * 1969-04-03 1972-09-05 Lodge Cottrell Ltd Electro-precipitation
US3744218A (en) * 1970-12-28 1973-07-10 Aeropur Ag Apparatus for cleaning gases through ionization
US3765153A (en) * 1970-10-26 1973-10-16 J Grey Apparatus for removing contaminants entrained in a gas stream
US3770385A (en) * 1970-10-26 1973-11-06 Morse Boulger Inc Apparatus for removal of contaminants entrained in gas streams
US3831349A (en) * 1972-08-10 1974-08-27 St Miljoteknik Ab Gas cleaners
US3890103A (en) * 1971-08-25 1975-06-17 Jinemon Konishi Anti-pollution exhaust apparatus
US4138233A (en) * 1976-06-21 1979-02-06 Senichi Masuda Pulse-charging type electric dust collecting apparatus
US4202674A (en) * 1978-09-15 1980-05-13 Ball Corporation Electrostatic gas cleaner
US4230466A (en) * 1979-05-10 1980-10-28 Santek, Inc. Discharge electrode structure for electrostatic precipitator
US5667565A (en) * 1995-03-21 1997-09-16 Sikorsky Aircraft Corporation Aerodynamic-electrostatic particulate collection system
WO1998012712A2 (en) * 1996-09-08 1998-03-26 Haim Goldenblum Kinetic to mechanical energy conversion method, device, and system
US6365112B1 (en) 2000-08-17 2002-04-02 Sergei Babko-Malyi Distribution of corona discharge activated reagent fluid injected into electrostatic precipitators
US7156899B1 (en) * 2000-06-21 2007-01-02 Canatxx Energy, L.L.C. Area wide municipal electronic air cleaner and method
US20080078291A1 (en) * 2006-09-28 2008-04-03 Pratt & Whitney Canada Corp. Self-contained electrostatic air/oil separator for aircraft engine
US20080105127A1 (en) * 2004-12-27 2008-05-08 Meryl Brothier Device for Purification of a Gas Flow Containing Condensable Vapours
US20080264251A1 (en) * 2004-06-03 2008-10-30 Alfa Laval Corporate Ab Device and a Method for Cleaning of a Gas
US20110011339A1 (en) * 2009-07-20 2011-01-20 Hon Hai Precision Industry Co., Ltd. Coating apparatus
US20110271837A1 (en) * 2010-05-06 2011-11-10 Rolls-Royce Deutschland Ltd & Co Kg Centrifugal oil separator for an aircraft engine
US20120204723A1 (en) * 2010-05-06 2012-08-16 Rolls-Royce Deutschland Ltd & Co Kg Centrifugal oil separator for an aircraft engine

Families Citing this family (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2134165C3 (de) * 1971-07-09 1981-06-04 Elba-Werk Maschinen-Gesellschaft Mbh & Co, 7505 Ettlingen Naßelektroabscheider
FR2185439B1 (xx) * 1972-05-26 1974-12-27 Tissmetal Lionel Dupont
JPS4965377A (xx) * 1972-10-27 1974-06-25
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DE2942123B1 (de) * 1979-10-18 1980-09-04 Bischoff Gasreinigung Ringspalt-Waescher
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GB2352276B (en) * 1996-09-08 2002-04-10 Goldenblum Haim Method,device and system for converting environmental heat into usable energy
US7156899B1 (en) * 2000-06-21 2007-01-02 Canatxx Energy, L.L.C. Area wide municipal electronic air cleaner and method
US6365112B1 (en) 2000-08-17 2002-04-02 Sergei Babko-Malyi Distribution of corona discharge activated reagent fluid injected into electrostatic precipitators
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US7704300B2 (en) * 2004-06-03 2010-04-27 Alfa Laval Corporate Ab Device and a method for cleaning of a gas
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Also Published As

Publication number Publication date
FR93987E (fr) 1969-06-13
DE1457304A1 (de) 1969-12-18
SE364645B (xx) 1974-03-04
DE6606015U (de) 1970-08-27
FR87986E (fr) 1966-04-29
BE712576A (xx) 1968-07-31
CH478597A (de) 1969-09-30
DE1457304B2 (de) 1975-04-24
NL6803880A (xx) 1968-09-23
NL6509093A (xx) 1966-01-17
FR87149E (fr) 1966-06-17
FR92315E (fr) 1968-10-25
DE6605598U (de) 1970-06-25
DE1757006A1 (de) 1971-06-24
US3492790A (en) 1970-02-03
BE666821A (xx) 1965-11-03
CH446591A (de) 1967-11-15

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