EP2065094B1 - Filtre électrostatique - Google Patents

Filtre électrostatique Download PDF

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Publication number
EP2065094B1
EP2065094B1 EP08405265.3A EP08405265A EP2065094B1 EP 2065094 B1 EP2065094 B1 EP 2065094B1 EP 08405265 A EP08405265 A EP 08405265A EP 2065094 B1 EP2065094 B1 EP 2065094B1
Authority
EP
European Patent Office
Prior art keywords
electrostatic precipitator
winding drum
cable
electrode
insulating body
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.)
Active
Application number
EP08405265.3A
Other languages
German (de)
English (en)
Other versions
EP2065094A2 (fr
EP2065094A3 (fr
Inventor
Heinz Gschwind
Jörg Meister
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.)
Meister Umwelt Technologie AG
Original Assignee
Meister Umwelt Technologie AG
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Filing date
Publication date
Application filed by Meister Umwelt Technologie AG filed Critical Meister Umwelt Technologie AG
Publication of EP2065094A2 publication Critical patent/EP2065094A2/fr
Publication of EP2065094A3 publication Critical patent/EP2065094A3/fr
Application granted granted Critical
Publication of EP2065094B1 publication Critical patent/EP2065094B1/fr
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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
    • B03C3/40—Electrode constructions
    • B03C3/41—Ionising-electrodes
    • 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
    • B03C3/06—Plant or installations having external electricity supply dry type characterised by presence of stationary tube electrodes
    • 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
    • B03C3/743—Cleaning the electrodes by using friction, e.g. by brushes or sliding elements
    • 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
    • B03C3/86—Electrode-carrying means
    • 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
    • B03C2201/04—Ionising electrode being a wire

Definitions

  • the invention relates to an electrostatic precipitator for the separation of dust particles from a gas stream, with at least one attached in a gas flowed through the housing precipitation electrode and with a parallel spaced by her, stretched under tension held spray electrode and periodically acting means for cleaning the collecting electrode.
  • the DE 490951 and the EP 0433152 are known electrostatic precipitator whose centrally extending in a tubular collecting electrode, wire-shaped spray electrode is tensioned by a fixed at its lower end weight.
  • the DE 490951 serves this tension weight at the same time as a wiper for the collecting electrode and is fixed during operation of the electrostatic precipitator, to avoid vibrations of the spray, in a relative to the housing of the electrostatic precipitator electrically insulated device.
  • the EP 0433152 a separate, with respect to the wire-shaped spray electrode electrically insulated scraper is provided, which is also lowered with its gravity along the inner surface of the collecting electrode.
  • the illustrated electrostatic precipitator 1 has a box-shaped filter housing 2, which encloses numerous, in several rows vertically extending and mutually parallel, tubular collecting electrodes 3 to 7.
  • the gas to be purified flows from an inflow branch 8 to the bottom region 9 of the housing in order to distribute from there to the individual precipitation electrodes 3 to 7, from which it flows out into a head region 10 of the housing to leave this via a discharge port 11.
  • the separation between bottom portion 9 and head portion 10 is effected by a lower and upper horizontal partition wall 12, 13, to which the ends of the collecting electrodes 3 to 7 are tightly secured.
  • the filter housing 2 merges into a shaft 14 delimited by oblique walls, along the bottom region of which extends a screw conveyor 15, through which ash or dust is discharged, which has dropped down from the precipitation tubes 3 to 7 into the shaft 14.
  • each tubular collecting electrode 3 to 7 each extending from a flexible wire spraying electrode 16 to 20, which is releasably connected to the positive pole of a high voltage source of eg 40 kV.
  • a high voltage source eg 40 kV.
  • Fig. 2 Shown pendulum, not shown insulators suspended contact frame 21, the contact webs 22 in a protruding from the respective collecting electrode 3 to 7 each area on the side of the Sprühelektroden 16 to 20 are applied under its own weight.
  • a cable system with attached to a common winding shaft 24 bobbins 25.
  • the corresponding negatively charged precipitation electrodes 3 to 7 are connected to a grounding line 23.
  • Each spraying electrode 16 to 20 extending through an associated collecting electrode 3 to 7 forms a part of a strand 28 that extends longitudinally in each case into an upper and lower winding drum 26, 27 and can be wound onto it.
  • a strand 28 For electrical insulation with respect to the winding drums 26, 27, FIGS this strand 28 an upper and lower, rod-shaped insulating body 29, 30 is provided.
  • the lower winding drums 27 are connected to a rotary drive 32 via a common drive shaft 31 to provide, by winding the strands 28 on the winding drums 27, one each above the collecting electrodes 3 to 7 in this strand 28, e.g. As a brush running cleaning body 33 to pull through the associated tubular collecting electrode 3 to 7 and thus to remove adhering to the inner surface of the material so that it drops down into the shaft 14.
  • a channel-shaped Isolier Sciences 34 is provided for this laterally on the winding drum 27, which is bounded by an extension 35 of a laterally projecting Drummelnabe 36 .
  • a crank arm 37 is provided which extends in the channel direction and thus tangentially away from the drum hub 36 to the outside and at the outer end of an extension pin 39 of the insulating body 30 is attached via a ball joint 40.
  • the hub extension 35 and the crank arm 37 are adapted in their length to the insulating body 30 with its extension pin 39 such that upon pivoting of the insulating body 30 into the Isolier Sciencesement 34 of the spray electrode 16 to 20 facing, a joint connection 41 exhibiting end at a lateral drum opening 42nd arrives in such a way that the strand 28 with its spray electrode 16 to 20 can be safely wound onto the winding drum 27.
  • the after a certain, empirically determined as optimal time program cleaning process begins with the shutdown of the electrical high voltage. Thereafter, the contact frame 21 is pivoted away from the discharge electrodes 3 to 7. Subsequently, the rotary drive 32 of the lower winding drums 27 is turned on. By the rotation of the respective crank arm 37 pivots downward, so that the rod-shaped insulating body 30 sets in its receptacle 34. The winding drum 27 continuously rotates and winds the spraying electrode 16 to 20 until the cleaning body 33 has been completely drawn through the tubular collecting electrode 3 to 7.
  • the respective strand 28 continues via a compensating spring 43 as a steel cable 44, which unwinds from the upper winding drum 26.
  • the upper winding drums 26 of a plurality of spray electrodes 16 to 20 are mounted on a common shaft 45, at the end of a cable drum 46 is attached.
  • a wound on this cable drum 46 produces a fixed end weight 48 under tension and thus holds on the shaft 45, the tension of the Sprühelektroden 16 to 20 even during the cleaning process upright.
  • the tension can be maintained at the spray electrodes 16 to 20 instead of by a weight 48 by a tension spring 50 which is provided in a Schmidtzugseil 51.
  • the Jacobyakseil 51 has an extending from the upper cable drum 46 to the mainspring 50 strand 52 and a wound on a Gegenzugtrommel 53 strand 54.
  • the winding rotation of this Gegenzugtrommel 53 is transmitted via the same shaft 31 as provided for the winding drum 27 by being mounted on the same shaft 31.
  • the only difference is the winding direction, by winding the strand 28 on the winding drum 27 causes a unwinding of the strand 54 of the Schmidtzugtrommel 53 through the described connection on the upper shaft 45.
  • a bias of the tension spring 50 permanently determines the tension on the spray electrodes 16 to 20.
  • Fig.2 illustrates that a constructed according to the described principle electrostatic precipitator 1 can be extended by adding any further combinations of spray and precipitation electrode both longitudinally and transversely arbitrarily, in order to the given for a particular application in each case flow amount of gas to be purified in a simple or cost-effective manner to be able to adapt.

Landscapes

  • Electrostatic Separation (AREA)

Claims (7)

  1. Électrofiltre conçu pour séparer les particules de poussière d'un courant de gaz, équipé au moins d'une électrode collectrice (3-7) fixée dans un boîtier traversé par le gaz et d'une électrode à couronne (16-20) maintenue allongée par un effort de tension qui lui est affecté en parallèle avec un écart, ainsi que de moyens agissant périodiquement pour nettoyer l'électrode collectrice (3-7), caractérisé en ce que l'électrode à couronne (16-20) est une partie du conducteur d'une phase (28) dans lequel un dispositif de nettoyage (33) est fixé, un système d'actionnement (27, 31, 32) avec un cylindre enrouleur (27) est prévu, sur lequel, pour exécuter un mouvement de nettoyage, une autre partie de ce conducteur de phase (28) peut être enroulée et l'électrode à couronne (16-20) est fixée entre deux corps isolants (29, 30).
  2. Électrofiltre selon la revendication 1, caractérisé en ce qu'un logement (34) pour les corps isolants ainsi qu'une manivelle (37) sont prévus à côté du cylindre enrouleur (27), manivelle avec l'extrémité externe (38) de laquelle le corps isolant (30) est relié au moyen d'un assemblage articulé (40).
  3. Électrofiltre selon la revendication 2, caractérisé en ce que le corps isolant (30), lorsqu'il est en position rentrée dans le logement (34) pour les corps isolants, vient se placer en prise avec une extrémité présentant un assemblage articulé (41) dans la région d'une ouverture de cylindre (42) latérale du cylindre enrouleur (27), l'assemblage articulé (41) reliant le corps isolant (30) à l'électrode à couronne (16-20).
  4. Électrofiltre selon l'une quelconque des revendications 1 à 3, caractérisé en ce que le conducteur de phase (28) présentant l'électrode à couronne (16-20) se termine dans un câble (44) qui peut être déroulé et enroulé sur un cylindre enrouleur (26) supérieur, ce cylindre enrouleur (26) étant relié à une molette de commande par câble (46) au moyen d'un arbre (45), molette dont le câble (47) est tendu par un poids (48).
  5. Électrofiltre selon la revendication 1, caractérisé en ce que le conducteur de phase (28) présentant l'électrode à couronne (16-20) se termine dans un câble (44) qui peut être déroulé et enroulé à partir d'un cylindre enrouleur (26) supérieur et en ce que ce cylindre enrouleur (26) est relié à une molette de commande par câble (46) au moyen d'un arbre (45), sur lequel passe un conducteur de phase (52) d'un câble opposé (51), ce conducteur de phase (52) se terminant au niveau d'un ressort de traction (50) sous tension et en ce qu'un second conducteur de phase (54) joint à celui-ci peut être déroulé à partir d'un contre-cylindre (53), lequel est relié au cylindre enrouleur (27) au moyen d'un arbre (31) et est ainsi couplé au servomoteur (32).
  6. Électrofiltre selon l'une quelconque des revendications 1 à 5, caractérisé en ce que les électrodes collectrices (3-7) sont agencées de façon tubulaire dans plusieurs rangées, les unes à côté des autres, dans un boîtier de filtre (2) commun présentant des supports d'arrivée et d'écoulement (8, 11), des cylindres enrouleurs (26) prévus pour le mouvement longitudinal des électrodes à couronne (16-20) étant fixés sur un arbre commun (31, 45).
  7. Électrofiltre selon l'une quelconque des revendications 1 à 6, caractérisé en ce qu'un servomoteur (32) relié à un cylindre enrouleur (27) inférieur est prévu pour déclencher le mouvement de nettoyage d'un dispositif de nettoyage (33) réalisé comme une brosse.
EP08405265.3A 2007-11-27 2008-10-22 Filtre électrostatique Active EP2065094B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH18422007 2007-11-27

Publications (3)

Publication Number Publication Date
EP2065094A2 EP2065094A2 (fr) 2009-06-03
EP2065094A3 EP2065094A3 (fr) 2013-04-24
EP2065094B1 true EP2065094B1 (fr) 2016-08-17

Family

ID=56372691

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08405265.3A Active EP2065094B1 (fr) 2007-11-27 2008-10-22 Filtre électrostatique

Country Status (2)

Country Link
EP (1) EP2065094B1 (fr)
DK (1) DK2065094T3 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105618732B (zh) * 2015-12-29 2017-07-25 北京钢研高纳科技股份有限公司 一种高温合金粉末的制备方法

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1478798A (en) * 1919-05-27 1923-12-25 Int Precipitation Co Apparatus for electrical treatment of gases
DE490951C (de) * 1924-03-25 1930-04-25 Siemens Schuckertwerke Akt Ges Einrichtung zur Abreinigung rohrfoermiger Niederschlagselektroden elektrischer Gasreinigungsanlagen durch Schaber
US1794074A (en) * 1926-06-19 1931-02-24 Res Corp Of New York Precipitator cleaning device
DE3915639C1 (fr) 1989-05-12 1991-01-24 Boehler Abfall-Abluft-Abwasser-Umweltschutz Ges.M.B.H., Feldkirch, At
FR2655570B1 (fr) * 1989-12-12 1992-06-19 Commissariat Energie Atomique Filtre electrostatique pourvu d'un systeme de decolmatage.
AT408846B (de) 1999-05-03 2002-03-25 Forsthuber Paul Röhrenelektrofilter
DE202007004263U1 (de) * 2007-02-16 2007-07-05 Otto Spanner Gmbh Elektrofilter

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Also Published As

Publication number Publication date
EP2065094A2 (fr) 2009-06-03
DK2065094T3 (en) 2016-11-28
EP2065094A3 (fr) 2013-04-24

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