WO2011156830A2 - Électrofiltre pour nettoyer des effluents gazeux chargés de poussière - Google Patents

Électrofiltre pour nettoyer des effluents gazeux chargés de poussière Download PDF

Info

Publication number
WO2011156830A2
WO2011156830A2 PCT/AT2011/000270 AT2011000270W WO2011156830A2 WO 2011156830 A2 WO2011156830 A2 WO 2011156830A2 AT 2011000270 W AT2011000270 W AT 2011000270W WO 2011156830 A2 WO2011156830 A2 WO 2011156830A2
Authority
WO
WIPO (PCT)
Prior art keywords
electrode
knocking
electrodes
knocking device
collecting
Prior art date
Application number
PCT/AT2011/000270
Other languages
German (de)
English (en)
Other versions
WO2011156830A8 (fr
WO2011156830A3 (fr
Inventor
Josef Sattlecker
Dominik Steiner
Original Assignee
Scheuch Gmbh
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 Scheuch Gmbh filed Critical Scheuch Gmbh
Priority to EP11743178.3A priority Critical patent/EP2582463B1/fr
Priority to CA2801786A priority patent/CA2801786A1/fr
Publication of WO2011156830A2 publication Critical patent/WO2011156830A2/fr
Publication of WO2011156830A3 publication Critical patent/WO2011156830A3/fr
Publication of WO2011156830A8 publication Critical patent/WO2011156830A8/fr

Links

Classifications

    • 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
    • B03C3/74—Cleaning the electrodes
    • B03C3/76—Cleaning the electrodes by using a mechanical vibrator, e.g. rapping gear ; by using impact
    • B03C3/761—Drive-transmitting devices therefor, e.g. insulated shafts
    • 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
    • B03C3/08—Plant or installations having external electricity supply dry type characterised by presence of stationary flat electrodes arranged with their flat surfaces parallel to the gas stream

Definitions

  • the invention relates to an electrostatic precipitator for cleaning dust-laden exhaust gases with a plurality of arranged in a housing rows of grounded collecting electrodes and arranged between the rows of collecting electrodes, standing under negative high voltage, the discharge electrodes, wherein the collecting electrodes and the spray electrodes knocking devices each having at least one knocking member for temporarily tapping the dust of the collecting electrodes and the discharge electrodes, and the collecting electrode knocking means comprises a driving device for the at least one knocking-off member of the collecting electrode knocking means.
  • Exhaust gases which are laden with dust and / or aerosol, which usually come from combustion processes, are often cleaned with electrostatic precipitators.
  • electrostatic precipitators the dust particles are predominantly negatively ionized by the discharge electrodes, which are under a negative high voltage.
  • the nega ⁇ tively charged dust particles migrate to the positively charged or grounded collecting electrodes and are deposited there over time in the form of a dust layer.
  • Both the spray electrodes, which also form dust layers, as well as the collecting electrodes are periodically, for example by knocking, cleaned and collected the falling dust, for example, in a dust collection hopper and fed into appropriate containers for further disposal or recycling.
  • the cleaning of the collecting electrodes is usually carried out by periodic mechanical shocks using appropriate Abklopforgane, especially hammers or plungers.
  • a knocking device for an electrostatic filter is known for example from DE 1 112 499, DE 1 865 538 or DE 101 24 871 C1 known. From DE 43 22 162 Cl an electrostatic precipitator with a special drive a horizontally arranged hammer shaft has become known.
  • DE 28 39 542 AI describes an electrostatic precipitator with a mechanically operated knocking device, wherein the knocking elements are insulated from each other by disc insulators.
  • the precipitation electrodes of electrostatic precipitators are cleaned by vibration excitation, notching devices, vibrators, brushes or compressed air.
  • vibration excitation notching devices
  • vibrators brushes or compressed air.
  • Such systems are known for example from DE 38 37 439 AI, DE 103 00 549 AI or DE 197 28 369 AI.
  • the drive device of the spray electrode knocking device arranged separately from the collecting electrode knocking device is insulated via a rotary or feedthrough insulator in the shaft feed. If possible, the rotary isolator is located outside the gas flow and is partially supplied with scavenging air in order to avoid soiling and resulting arcing up to destruction.
  • a disadvantage of known electrostatic precipitators with precipitation electrode and Sprühelektrodenabtherapiesvorraumen is the high cost, which is caused by the separate drive devices for the two electrode systems and the cost of the isolation of the cleaning device for the Sprühelektroden.
  • the necessary components for the cleaning of the collecting electrodes and the discharge electrodes increase the overall size of the electrostatic precipitator.
  • This disadvantage is further enhanced by the fact that the drive device for the Precipitation electrode knocking device is arranged correspondingly far away from the drive device for the Sprühelektroden- knocking device to safely avoid any flashovers between the systems located at different potentials.
  • the object of the present invention is to provide an above-mentioned electro-filter with dedusting equipment for the precipitation and discharge electrodes, wel ⁇ ches as simple, inexpensive, and is constructed in a space-saving and permits efficient cleaning of the collecting electrodes and discharge electrodes.
  • the object according to the invention is achieved by an above-mentioned electric filter in which the spraying electrode knocking device is coupled to the driving device of the collecting electrode knocking device, so that the at least one knocking element of the spraying electrode knocking device is driven by the driving device of the collecting electrode knocking device
  • the collecting electrode knocking device is coupled to the spraying electrode knocking device, so that a corresponding drive device is required only for the collecting electrode knocking device.
  • the drive device for the spray electrode knocking device can be dispensed with, since the actuation of the knocking devices, in particular hammers, of the spray electrode knocking device is effected indirectly by the driving device of the collecting electrode knocking device.
  • the driving device of the collecting electrode tapping device is at least one insulated driver, with the at least one Abklopforgan coupled to the discharge electrode knocking device.
  • Such a construction is relatively easy to implement and has the security and robustness required for operation. If the drive device of the collecting electrode knocking device is actuated to allow the corresponding knocking devices, in particular hammers, to act against the collecting electrodes, the knocking elements for the spraying electrodes can be actuated via the insulated carrier, so that these also act on the spraying electrodes and the dust covering is thereby thrown off.
  • the driving device of the collecting electrode knocking means comprises a drive shaft connected to a drive motor and an associated gearbox. At least one Aböffpforgan the collecting electrode knocking device is arranged at this drive shaft. A corresponding controller switches on the drive motor at certain times, so that the at least one knock-off member is actuated at these times and the collecting electrodes are thereby cleaned.
  • each isolated driver is also arranged on the drive shaft of the collecting electrode knocking device and is entrained by the movement of the drive shaft of the collecting electrode knocking device and on the driver, the at least one Abklopforgan the Sprühelektroden-knocking device is actuated.
  • each isolated carrier arranged thereon is actuated and thus acts on the respective knocking device for the spray electrodes.
  • an actuation of the Abklopforgane the Sprühelektroden-knocking device is always automatically when the collecting electrode knocking device
  • a position sensor is arranged on the drive shaft of the collecting electrode tapping device, so that the drive shaft and each driver arranged thereon after completion of a Abcurisvorgangs in a defined starting position can be brought. After the cleaning process so a predetermined position of the drive shaft is achieved.
  • each driver points substantially vertically downwards when it is not needed, so that the driver offers the smallest possible surface for dust and no permanent insulation function must take. Apart from the undesirable contamination of the driver, the insulating effect of the driver could be prevented by adhering dust, which could lead to rollovers in Abcurisfall.
  • a driving device for example a rotatably mounted roller is arranged at the free end of each driver, which in contact with the at least one Abklopforgan the Sprühelektroden Klopfeinrich- device is set in rotation.
  • the provision of such a driving device reduces friction between the insulated driver and the knocking member of the spray electrode knocking device.
  • the entrainment device, in particular the rotatably mounted roller thus rolls on Abklopforgan the
  • a plurality of collecting electrodes for example, connected to one another via a connecting rail, wherein an anvil is arranged on the composite of a plurality of collecting electrodes for each Abklopforgan the collecting electrode knocking device.
  • a plurality of spray electrodes can be connected to one another via at least one frame and a plurality of spray electrode frames, if need be via at least one connecting rail.
  • At least one Sprühelektroden frame or at least one connecting rail for each Abkloppforgan the Sprühelektroden- knocking an anvil is arranged.
  • a composite of spray electrodes can be knocked out at the same time with one stroke of each knocking member on an associated anvil.
  • each discharge electrode frame has a corresponding indentation in the region of the discharge electrode knocking device.
  • the Abklopforgane for the discharge electrodes are thus arranged adjacent to the indentation of the Sprühelektroden-frame, so that the outer dimensions of an inventively designed Elektrofil- ters not substantially differ from the dimensions of an electrostatic precipitator without cleaning device.
  • the spray electrode knocking device is arranged in the lower region of the spray electrode frame and the spray electrode frame is designed to converge in this lower region. Without having to change the housing of such an electrostatic filter, the knocking device for the spray electrodes is located next to the converging lower region of the spray electrode frame.
  • Fig. 1 is a schematic view of an electrostatic precipitator
  • FIG. 2 shows a schematic embodiment of the internal installations of an electrostatic filter according to the invention
  • Fig. 3 is a detail view of an embodiment of the coupling between the driving of the collecting electrode knocking device and the discharge electrode knocking device on an enlarged scale;
  • Fig. 1 shows an electrostatic precipitator 1, for cleaning dust-laden exhaust gases A, which are supplied from one side of the electrostatic precipitator 1.
  • the components of the electro-filter 1 are usually located in a housing G.
  • the electrostatic precipitator 1 consists of rows of precipitation electrodes 2, which are usually designed to be plate-shaped. Between the rows of collecting electrodes 2 are arranged spray electrodes 3, which are at a negative high voltage potential.
  • the collecting electrodes 2 and the discharge electrodes 3 are assigned corresponding knocking devices 4, 5.
  • the knocking devices for the collecting electrodes and the discharge electrodes contain corresponding knocking devices 6 and 7, which tap against corresponding anvils 8 and 9 of the collecting electrodes 2 and / or discharge electrodes 3 and cause the adhering dust covering to be thrown off.
  • the activation of the knocking members 6, 7 of the collecting electrodes 2 and / or spraying electrodes 3 are operated by corresponding drive devices. Depending on the dust load, the cleaning is repeated at different time intervals.
  • corresponding components and drives are required both for the collecting electrode knocking device 5 and for the spraying electrode knocking device 4, which increase the outlay, the costs and the size of the electrostatic precipitator.
  • FIG. 2 shows a schematic view of the internal installations of an embodiment of an electrostatic precipitator 1 according to the invention, wherein the drive device of the precipitation electrode knocking device 5 is formed by a corresponding drive motor 11, a transmission 12 and a corresponding drive shaft 13.
  • At least one Abklopforgan 6, in particular at least one Purzelhammer is mounted on the drive shaft 13 and is rotated upon actuation of the drive shaft 13 and forced to knock an anvil to the collecting electrodes 2, wherein also several collecting electrodes 2 are combined via a connecting rail 18 and cleaned together can.
  • the drive shaft 13 of the drive device of the collecting electrode knocking device 5 is operated during cleaning and turned the associated Abklopforgan 6 for the collecting electrodes 2 and thrown on the associated anvil 8 for the collecting electrodes 2.
  • an insulated driver 14 is arranged, which actuates the Abklopforgan 7 for the Sprühelektroden-knocking device 4.
  • a roller 15 may be arranged, which rolls on the correspondingly designed Abklopforgan 7.
  • the knock-off element 7 of the spray-electrode knocking device 4 is actuated and thrown against a corresponding anvil 9 on a connecting rail 17 comprising a plurality of spray-electrode frames 19.
  • FIG. 4 shows an embodiment of a frame 16, with which a plurality of spray electrodes 3 are combined.
  • the frame 16 is provided in the lower region with a recess 19 in which the corresponding drive device for the collecting electrode knocking device 5 can be arranged. This results in an electrostatic filter 1 whose outer dimensions are smaller than those of electrostatic precipitators with conventional cleaning.
  • the present invention is particularly advantageous for smaller Elek ⁇ trofiltern for biomass furnaces in the power range 0.3-3MW.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Electrostatic Separation (AREA)

Abstract

L'invention concerne un électrofiltre (1) pour nettoyer des effluents gazeux (A) chargés de poussière, comportant plusieurs rangées d'électrodes de dépôt (2) mises à la terre et disposées dans un boîtier et, disposées entre les rangées d'électrodes de dépôt (2), des électrodes d'émission (3) sous haute tension négative, aux électrodes de dépôt (2) et aux électrodes d'émission (3) étant associés des dispositifs de percussion (4,5) ayant chacun au moins un organe de percussion (6,7) pour frapper par intermittence la poussière des électrodes de dépôt (2) et des électrodes d'émission (3), le dispositif de percussion des électrodes de dépôt (5) comportant un dispositif d'entraînement pour le ou les organes de percussion (6) dudit dispositif de percussion des électrodes de dépôt (5). Selon l'invention, le dispositif de percussion des électrodes d'émission (4) est couplé au dispositif d'entraînement du dispositif de percussion des électrodes de dépôt (5) de sorte qu'au moins un organe de percussion (7) du dispositif de percussion des électrodes d'émission (4) est actionné par le dispositif d'entraînement du dispositif de percussion des électrodes de dépôt (5).
PCT/AT2011/000270 2010-06-18 2011-06-17 Électrofiltre pour nettoyer des effluents gazeux chargés de poussière WO2011156830A2 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP11743178.3A EP2582463B1 (fr) 2010-06-18 2011-06-17 Électrofiltre pour nettoyer des effluents gazeux chargés de poussière
CA2801786A CA2801786A1 (fr) 2010-06-18 2011-06-17 Electrofiltre pour nettoyer des effluents gazeux charges de poussiere

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ATGM386/2010 2010-06-18
ATGM386/2010U AT13007U1 (de) 2010-06-18 2010-06-18 Elektrofilter zum reinigen staubbeladener abgase und verfahren zum abreinigen eines elektrofilters

Publications (3)

Publication Number Publication Date
WO2011156830A2 true WO2011156830A2 (fr) 2011-12-22
WO2011156830A3 WO2011156830A3 (fr) 2012-05-03
WO2011156830A8 WO2011156830A8 (fr) 2012-10-11

Family

ID=44508524

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/AT2011/000270 WO2011156830A2 (fr) 2010-06-18 2011-06-17 Électrofiltre pour nettoyer des effluents gazeux chargés de poussière

Country Status (4)

Country Link
EP (1) EP2582463B1 (fr)
AT (1) AT13007U1 (fr)
CA (1) CA2801786A1 (fr)
WO (1) WO2011156830A2 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104275244A (zh) * 2014-10-29 2015-01-14 张家港宣化凯波环保科技有限公司 一种电除尘器阴极振打驱动装置

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
PL3492175T3 (pl) * 2017-12-04 2021-07-05 Exodraft a/s System elektrofiltra zawierający kratę do gromadzenia cząstek

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE447137C (de) 1925-03-31 1927-07-18 Siemens Schuckertwerke G M B H Schuettelvorrichtung fuer die Elektroden elektrischer Gasreinigungsanlagen
DE1112499B (de) 1959-11-04 1961-08-10 Appbau Rothemuehle Klopfeinrichtung fuer Elektrofilter und Betriebsverfahren dafuer
DE1865538U (de) 1962-07-06 1963-01-17 Metallgesellschaft Ag Vorrichtung zur abklopfung von niederschlagselektroden im elektrofilter.
DE2839542A1 (de) 1978-09-12 1980-03-27 Rothemuehle Brandt Kritzler Elektrofilter
DE3837439A1 (de) 1988-11-04 1990-05-10 Sms Schwingungs Messung System Verfahren und vorrichtung zum loesen von staub- bzw. schmutzpartikelchen bei filteranlagen
DE4322162C1 (de) 1993-07-03 1994-10-06 Metallgesellschaft Ag Vorrichtung zur Übertragung von Drehmomenten auf mindestens eine in einem elektrostatischen Abscheider horizontal angeordnete Hammerwelle
DE19728369A1 (de) 1997-07-03 1999-01-07 Wurz Dieter Reinigung der Abscheideelektroden von Elektrofiltern
DE10124871C1 (de) 2001-05-22 2002-10-10 Hamon Rothemuehle Cottrell Gmb Reinigung von Elektroden eines Elektrofilters
DE10300549A1 (de) 2003-01-09 2004-07-22 Riebel, Ulrich, Prof. Dr.-Ing. Vorrichtung zum Abreinigen von Elektroabscheidern und Verfahren zum Betreiben der Vorrichtung

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1600496A (en) * 1923-11-28 1926-09-21 Int Precipitation Co Apparatus for electrical precipitation of suspended material from gases
US1981455A (en) * 1932-03-14 1934-11-20 Int Precipitation Co Electrical precipitator
GB1149053A (en) * 1965-12-14 1969-04-16 Lodge Cottrell Ltd Improvements in or relating to electro-precipitators
DE2055626A1 (en) * 1970-11-12 1972-05-18 Krupp Gmbh Electrostatic insulator cleaning - using hammers to strike electrodes
US3920085A (en) * 1974-11-11 1975-11-18 Universal Oil Prod Co Swing hammer rapping system for electrostatic precipitator
GB1578378A (en) * 1978-04-26 1980-11-05 Lodge Cottrell Ltd Roller bearing for drop rod rapping
GB2047576A (en) * 1979-04-12 1980-12-03 Lodge Cottrell Ltd Electro-precipitation
DE8031177U1 (de) * 1980-11-22 1986-06-19 Walther & Cie AG, 5000 Köln Elektroabscheider
US4769049A (en) * 1987-04-14 1988-09-06 United Mcgill Corporation Side rapping drag hammer apparatus for electrostatic precipitators
DK172419B1 (da) * 1992-08-28 1998-06-08 Fls Miljoe As Ophængningsanordning og bankemekanisme for elektroder i et elektrofilter

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE447137C (de) 1925-03-31 1927-07-18 Siemens Schuckertwerke G M B H Schuettelvorrichtung fuer die Elektroden elektrischer Gasreinigungsanlagen
DE1112499B (de) 1959-11-04 1961-08-10 Appbau Rothemuehle Klopfeinrichtung fuer Elektrofilter und Betriebsverfahren dafuer
DE1865538U (de) 1962-07-06 1963-01-17 Metallgesellschaft Ag Vorrichtung zur abklopfung von niederschlagselektroden im elektrofilter.
DE2839542A1 (de) 1978-09-12 1980-03-27 Rothemuehle Brandt Kritzler Elektrofilter
DE3837439A1 (de) 1988-11-04 1990-05-10 Sms Schwingungs Messung System Verfahren und vorrichtung zum loesen von staub- bzw. schmutzpartikelchen bei filteranlagen
DE4322162C1 (de) 1993-07-03 1994-10-06 Metallgesellschaft Ag Vorrichtung zur Übertragung von Drehmomenten auf mindestens eine in einem elektrostatischen Abscheider horizontal angeordnete Hammerwelle
DE19728369A1 (de) 1997-07-03 1999-01-07 Wurz Dieter Reinigung der Abscheideelektroden von Elektrofiltern
DE10124871C1 (de) 2001-05-22 2002-10-10 Hamon Rothemuehle Cottrell Gmb Reinigung von Elektroden eines Elektrofilters
DE10300549A1 (de) 2003-01-09 2004-07-22 Riebel, Ulrich, Prof. Dr.-Ing. Vorrichtung zum Abreinigen von Elektroabscheidern und Verfahren zum Betreiben der Vorrichtung

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104275244A (zh) * 2014-10-29 2015-01-14 张家港宣化凯波环保科技有限公司 一种电除尘器阴极振打驱动装置

Also Published As

Publication number Publication date
WO2011156830A8 (fr) 2012-10-11
WO2011156830A3 (fr) 2012-05-03
CA2801786A1 (fr) 2011-12-22
AT13007U1 (de) 2013-03-15
EP2582463B1 (fr) 2013-09-04
EP2582463A2 (fr) 2013-04-24

Similar Documents

Publication Publication Date Title
EP2343130A1 (fr) Dispositif de séparation du brouillard de peinture excédentaire
WO2001091908A1 (fr) Filtre a poussiere avec manche filtrante, electrode a couronne et electrode de precipitation
EP2582463B1 (fr) Électrofiltre pour nettoyer des effluents gazeux chargés de poussière
DE2462539A1 (de) Elektrische staubsammelvorrichtung
WO2002066167A1 (fr) Depoussiereur electrostatique a tubes de filtration integres
DE102005038669A1 (de) Verfahren zum Betrieb eines Hochspannungsnetzteils eines elektrostatischen Abscheiders
EP2062649B1 (fr) Séparateur électrostatique doté d'un moyen d'extraction de particules, système de chauffage et procédé de fonctionnement
DE102006033945B4 (de) Steuern der Hochspannung einer Elektroluftfiltervorrichtung
EP4061534A1 (fr) Unité de filtration pour dispositif de purification d'air et dispositif de purification d'air
EP1545785B1 (fr) Filtre electrostatique et procede permettant de separer les particules d'un gaz
DE19644589B4 (de) Staubsauger mit Einrichtung zur Unterstützung der Reinigungsleistung durch elektrostatische Kräfte
EP2621636B1 (fr) Étage collecteur d'un séparateur électrostatique pour la purification de gaz de fumée formés par des procédés de combustion
DE19823342C2 (de) Elektrofilter
DE202008008801U1 (de) Sprühelektrode für Elektrofilter
DE10124871C1 (de) Reinigung von Elektroden eines Elektrofilters
DE202019101213U1 (de) Elektrostatische Partikelabscheidevorrichtung
DE102012013996A1 (de) Vorrichtung zum Abscheiden von Feststoffpartikeln und Beschichtungsanlage mit einer solchen
EP4000738B1 (fr) Filtre de nettoyage d'un flux gazeux
DE2737475A1 (de) Reinigungseinrichtung fuer elektrostatische abscheider
DE1133343B (de) Klopfeinrichtung fuer isoliert angeordnete Spruhelektroden in Staubabscheidern
DE1457252A1 (de) Ruettelvorrichtung fuer die Elektroden in elektrostatischen Abscheidern
EP1813735A1 (fr) Procédé destiné à la déshumidification d'une bâtisse
WO2021099110A1 (fr) Unité de filtre électrostatique pour dispositif de nettoyage de l'air et dispositif de nettoyage de l'air
DE2839542A1 (de) Elektrofilter
EP0342539B1 (fr) Séparateur électrostatique de poussière

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 11743178

Country of ref document: EP

Kind code of ref document: A2

DPE1 Request for preliminary examination filed after expiration of 19th month from priority date (pct application filed from 20040101)
WWE Wipo information: entry into national phase

Ref document number: 2011743178

Country of ref document: EP

ENP Entry into the national phase in:

Ref document number: 2801786

Country of ref document: CA

NENP Non-entry into the national phase in:

Ref country code: DE