EP2451582B1 - Elektrofilter - Google Patents

Elektrofilter Download PDF

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Publication number
EP2451582B1
EP2451582B1 EP10741897.2A EP10741897A EP2451582B1 EP 2451582 B1 EP2451582 B1 EP 2451582B1 EP 10741897 A EP10741897 A EP 10741897A EP 2451582 B1 EP2451582 B1 EP 2451582B1
Authority
EP
European Patent Office
Prior art keywords
electrodes
accordance
electrical filter
housing
section
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.)
Revoked
Application number
EP10741897.2A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP2451582A1 (de
Inventor
Claude Brupbacher
Jan Adams
Thilo WÜBBELS
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.)
SMS Elex AG
Original Assignee
SMS Elex AG
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=43307928&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP2451582(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by SMS Elex AG filed Critical SMS Elex AG
Priority to PL10741897T priority Critical patent/PL2451582T3/pl
Publication of EP2451582A1 publication Critical patent/EP2451582A1/de
Application granted granted Critical
Publication of EP2451582B1 publication Critical patent/EP2451582B1/de
Revoked legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • B03C3/34—Constructional details or accessories or operation thereof
    • B03C3/40—Electrode constructions
    • B03C3/45—Collecting-electrodes
    • B03C3/49—Collecting-electrodes tubular
    • 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
    • B03C2201/06—Ionising electrode being a needle
    • 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
    • B03C2201/08—Ionising electrode being a rod

Definitions

  • the invention relates to an electrostatic precipitator according to the preamble of claim 1.
  • EP 0 252 371 A1 describes an electrostatic precipitator in the form of an electrostatic precipitator, in which a particle- or dust-laden gas stream between parallel precipitation plates is guided in a substantially cylindrical housing portion. Between the parallel aligned precipitation plates are longitudinally extending lanes in which tensioned discharge electrodes are arranged in frame. Such tensioned in frame discharge electrodes are formed as wires and are subject to temperature changes corresponding mechanical tension. In addition to a possible tearing of the electrode wires through which a short circuit can take place, distortions in the electrode frame can also occur due to the mechanical stresses, as a result of which the distances between the electrode frames under high voltage and the neighboring deposition plates are unfavorably changed. In the case of broken electrode wires, in practical operation of electrostatic precipitators of this type, for maintenance reasons, often only the cracked individual electrode wires are removed, so that the electrostatic filter has gradually reduced power until complete maintenance.
  • US 4 077 783 A discloses an electrostatic filter wherein the Niedersdlagplatten and the electrodes are bent in a circle.
  • the main field of application is the dedusting of converter gas. Due to the discontinuous operation of converters, the gas purification system is alternately flowed through by dust-laden, combustible converter gas and only slightly dusty ambient air. During the blowing phase of the converter, the resulting flammable converter gas is collected in a gas container after the dust has been separated. A switching station installed after the filter allows the deflection of the non-combustible exhaust air via a chimney into the atmosphere. If the converter gas and the oxygen-containing exhaust air of the blowing pauses mix together, explosive gas mixtures can form, which can ignite in the electrostatic precipitator and lead to deflagration. Such deflagrations can lead to dust surges, which affect the separation efficiency of the electrostatic precipitator.
  • An inventive electrostatic precipitator with the sum of its features is therefore particularly suitable for this application, especially since the round housing shape allows a particularly favorable flow and at the same time a good mechanical strength of the entire electrostatic precipitator.
  • the electrodes are at least in a vertical orientation self-supporting dimensionally stable, so that can be dispensed with a simple way to clamp the electrodes. They can be formed in a preferred, but not necessary detailed design, for example, as per se known tube-sputtering electrodes be as electrodes with a square cross-section or as electrodes with a cross-section.
  • the electrode frame in addition to the support beam on at least one further stiffening spar, whereby the electrode frame receives better support.
  • the electrodes are guided on the stiffening spar, but not fixed in place.
  • At least some of the electrode frames have a different height from each other, depending on their position in the approximately circular cross-section.
  • the support spar preferably in the vertical direction at least a quarter, more preferably at least one third of a diameter of the housing cross-section as a distance from an upper and a lower end of the housing.
  • the carrier beam is formed as a knocking rod of the electrode frame, so that it is possible in a simple manner to abut the electrodes for dedusting. Due to the inventive mounting of the electrodes, it is regularly sufficient that the striking of the knocking rod takes place only from one side.
  • the support bars of the plurality of electrode frames extend between at least two, preferably exactly two in the longitudinal direction one behind the other arranged cross members and are held by these.
  • the cross member via electric insulators are mounted in the housing.
  • the cross member may be particularly preferably suspended in each case on a reinforcing ring of the housing.
  • Such reinforcing rings are known in particular in the design of electrostatic precipitators with a circular cross section, wherein between two reinforcing rings of the housing in each case a field of precipitation plates and electrode frame is arranged.
  • At least two of the electrode frames are connected to one another in a transverse direction via a free-floating fixing cross, in a preferred detailed design in the longitudinal direction in front of and / or behind a field of precipitation plates.
  • Fixiertraversen reduce with simple means the vibration of the individual electrode frame to each other, without weight or construction costs are significantly increased.
  • An inventive electrostatic filter comprises a housing (not shown) having a substantially constant and substantially circular cross-section in a cylindrical portion, wherein a longitudinal direction of the electrostatic filter in the direction of the cylinder axis, in which also a flow through the electrostatic filter with a particle or dust-laden gas takes place.
  • L reinforcing rings which on the one hand support the housing and on the other hand serve to support fields of precipitation plates.
  • a plurality of electrode frame 1 are fixed to the reinforcing rings, which are fixed parallel to each other in the transverse direction through the housing extending cross members 2.
  • the attachment to the cross members 2 takes place by means of a respective end region of a supporting beam 3 of the respective electrode frame.
  • Each of the end portions of the supporting beam 2 rests on one of the two cross members 2 and is secured there by further means.
  • An electrode frame 1 comprises in addition to the support beam 3, which extends in the longitudinal direction L of the housing, two vertical uprights 4 extending in the vertical or vertical direction H and a plurality of further longitudinally L parallel to the support spar 3 between the vertical uprights 4 extending stiffening beams 5.
  • the stiffening beams 5, the vertical bars 4 and the support beam 3 are fixed to each other fixed, so that a ladder-like frame is formed (see Fig. 1 ).
  • the ladder-frame-shaped electrode frame 1 is fastened via the end regions of the supporting beam 3 on the cross members 2, which in turn are suspended on vertical anchors 6 on the reinforcing rings (not shown) of the housing via insulators 7.
  • the entire electrode frame 1 is energized during operation with the adjacent deposition plates (not shown) grounded.
  • the in Fig. 1 shown electrode frame is shown for clarity without attached electrodes.
  • corresponding projections 3a are indicated on the support beam.
  • the electrodes 8 which are fixed exclusively fixed to the lugs 3 a of the supporting bars 3 of the electrode frame 1, both upwards and downwards vertically from the support bars 3 from.
  • the electrodes 8 are guided on the stiffening bars 5, for example by means arranged in the stiffening bars 5 holes or longitudinal slots. A stationary fixation on the stiffening bars 5 does not take place.
  • the electrodes 8 protrude in the embodiment shown in the vertical direction beyond the ends of the electrode frame 1 addition, whereby a particularly good utilization of the cylindrical gas-flow space is achieved.
  • Fig. 2 it is a frontal plan view of the overall arrangement of cross members 2 and electrode frame 1, which is suspended in the housing (not shown) of the electrostatic precipitator.
  • free-floating fixing braces 9 can be seen, which in each case connect some of the electrode frames 1 with one another in order to prevent the electrode frames from oscillating against each other during operation of the electrostatic filter.
  • Not shown are running between the electrode frame 1 precipitation plates of the electrostatic precipitator. Between the precipitation plates, which are aligned parallel to each other, remain free lanes in which the electrode frame 1 are arranged.
  • the electrodes 8 are in the present case designed as tube-spray electrodes. In particular, they have a sufficiently large cross-section in order to maintain a dimensionally stable shape, at least in the illustrated vertical orientation, in a self-supporting manner. A clamping of the electrodes over their length does not take place. Likewise, it is not necessary to provide the electrodes 8 which extend downwardly from the carrier spar 3, since they are designed to be dimensionally stable and guided on the stiffening bars 5 on the one hand.
  • the respective carrier beam 3 is struck by a known mechanism by means of knocking waves and hammering.
  • a striking of the supporting bars 3 from only one side is sufficient. But it can also be provided a two-sided striking.
  • the transverse beams 2 are arranged in the vertical direction H at such a large distance from an upper end of the housing (not shown) that it corresponds to at least about one third of the total diameter of the substantially circular housing.
  • the cross member 2 in the transverse direction Q are sufficiently long to accommodate many parallel electrode frame 1 and to optimally use the housing width.
  • the electrode frame 1 depending on the arrangement in the transverse direction Q have a different height, with a total of three different heights of electrode frame are provided.
  • the staggering of the lengths of the electrodes 8 used, depending on the position in the transverse direction, is even finer than the staggering of the frame heights in order to optimally utilize the space of the electrostatic precipitator for particle separation.

Landscapes

  • Electrostatic Separation (AREA)
  • Filtering Of Dispersed Particles In Gases (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)
EP10741897.2A 2009-07-10 2010-07-08 Elektrofilter Revoked EP2451582B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL10741897T PL2451582T3 (pl) 2009-07-10 2010-07-08 Elektrofiltr

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE102009032910 2009-07-10
DE102009060254A DE102009060254A1 (de) 2009-07-10 2009-12-23 Elektrofilter
PCT/EP2010/004169 WO2011003610A1 (de) 2009-07-10 2010-07-08 Elektrofilter

Publications (2)

Publication Number Publication Date
EP2451582A1 EP2451582A1 (de) 2012-05-16
EP2451582B1 true EP2451582B1 (de) 2013-04-24

Family

ID=43307928

Family Applications (1)

Application Number Title Priority Date Filing Date
EP10741897.2A Revoked EP2451582B1 (de) 2009-07-10 2010-07-08 Elektrofilter

Country Status (8)

Country Link
EP (1) EP2451582B1 (ja)
JP (1) JP5553895B2 (ja)
CN (1) CN102574132B (ja)
BR (1) BR112012000646B1 (ja)
DE (1) DE102009060254A1 (ja)
PL (1) PL2451582T3 (ja)
TW (1) TW201102168A (ja)
WO (1) WO2011003610A1 (ja)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104437873A (zh) * 2014-12-18 2015-03-25 泰兴电除尘设备厂有限公司 一种加强式阴极框架
KR101963786B1 (ko) * 2017-02-03 2019-07-31 (주)동일기연 대전부를 포함하는 필터링 장치

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR750383A (fr) * 1932-05-04 1933-08-08 Procédé et dispositif électriques pour la purification des fluides, en particulier de l'air
US4077783A (en) * 1975-06-19 1978-03-07 Dart Industries Insulator means for electrostatic precipitators
FR2437877A1 (fr) * 1978-10-02 1980-04-30 Flow Ind Inc Dispositif de precipitation electrostatique
JPS55133249U (ja) * 1979-03-14 1980-09-20
DE2949722C2 (de) * 1979-12-11 1984-09-20 Metallgesellschaft Ag, 6000 Frankfurt Sprühelektrodenfeld
US4479813A (en) * 1982-11-29 1984-10-30 Jonelis John A Electrostatic precipatator construction having ladder bar spacers
US4516992A (en) * 1983-11-28 1985-05-14 Jonelis Robert E Apparatus and method for straightening electrostatic precipitator collector plates
DE3622699A1 (de) * 1986-07-05 1988-01-14 Metallgesellschaft Ag Elektrostatischer staubabscheider
DK172419B1 (da) * 1992-08-28 1998-06-08 Fls Miljoe As Ophængningsanordning og bankemekanisme for elektroder i et elektrofilter
DK107692A (da) * 1992-08-28 1994-03-01 Fls Milj A S Bankemekanisme til bankning af et elektrofilters elektroder
SE512249C2 (sv) * 1995-06-20 2000-02-21 Flaekt Ab Anordning vid ett elektrofilter för upphängning, och slagning av utfällningselektroder
JP2916901B2 (ja) * 1996-10-07 1999-07-05 ギャラクシー有限会社 電気集塵装置および焼却炉
JP3313653B2 (ja) * 1997-01-20 2002-08-12 大見工業株式会社 静電集塵機
JP3959720B2 (ja) * 2003-03-11 2007-08-15 株式会社日立プラントテクノロジー 電気集塵装置の集塵極板
JP2008018340A (ja) * 2006-07-13 2008-01-31 Trinc:Kk 浮遊物捕捉装置および浮遊物反発装置

Also Published As

Publication number Publication date
JP2012532017A (ja) 2012-12-13
BR112012000646B1 (pt) 2019-09-03
BR112012000646A2 (pt) 2016-02-10
CN102574132B (zh) 2014-11-26
EP2451582A1 (de) 2012-05-16
PL2451582T3 (pl) 2013-09-30
WO2011003610A1 (de) 2011-01-13
JP5553895B2 (ja) 2014-07-16
TW201102168A (en) 2011-01-16
CN102574132A (zh) 2012-07-11
DE102009060254A1 (de) 2011-01-13

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