EP0092854B1 - Nasselektrofilter für Konverterabgase - Google Patents

Nasselektrofilter für Konverterabgase Download PDF

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Publication number
EP0092854B1
EP0092854B1 EP83200197A EP83200197A EP0092854B1 EP 0092854 B1 EP0092854 B1 EP 0092854B1 EP 83200197 A EP83200197 A EP 83200197A EP 83200197 A EP83200197 A EP 83200197A EP 0092854 B1 EP0092854 B1 EP 0092854B1
Authority
EP
European Patent Office
Prior art keywords
collecting
electrodes
wet
electrostatic precipitator
gas
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
EP83200197A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0092854A1 (de
Inventor
Heribert Baab
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.)
GEA Group AG
Original Assignee
Metallgesellschaft 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
Application filed by Metallgesellschaft AG filed Critical Metallgesellschaft AG
Publication of EP0092854A1 publication Critical patent/EP0092854A1/de
Application granted granted Critical
Publication of EP0092854B1 publication Critical patent/EP0092854B1/de
Expired legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J29/00—Details of cathode-ray tubes or of electron-beam tubes of the types covered by group H01J31/00
    • H01J29/02—Electrodes; Screens; Mounting, supporting, spacing or insulating thereof
    • H01J29/10—Screens on or from which an image or pattern is formed, picked up, converted or stored
    • H01J29/18—Luminescent screens
    • H01J29/30—Luminescent screens with luminescent material discontinuously arranged, e.g. in dots, in lines
    • H01J29/32—Luminescent screens with luminescent material discontinuously arranged, e.g. in dots, in lines with adjacent dots or lines of different luminescent material, e.g. for colour television
    • H01J29/327—Black matrix materials
    • 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
    • B03C3/16—Plant or installations having external electricity supply wet type

Definitions

  • the invention relates to a wet electrostatic precipitator for horizontal gas passage, consisting essentially of a pressure-resistant housing, in which spray and precipitation electrodes with removal and purging devices are arranged transversely to the gas flow direction in an alternating manner, in particular for dedusting converter exhaust gases.
  • a wet electrostatic precipitator has already been proposed in CA-A-553 908 for cleaning blast furnace exhaust gases with an excess pressure of up to about 2 bar, in which the housing has an oval cross section and precipitation electrodes with a height of about 5 m are provided.
  • This wet electrostatic precipitator is not yet optimally designed with regard to the pressure surges that occur during deflagrations. It is also not applicable for any amount of gas, because - as will be explained in more detail - reliable wet cleaning of precipitation electrodes is only possible up to heights of around 5 m, which limits the maximum available gas passage cross-section and two or more for larger amounts of gas wet electrostatic precipitator connected in parallel must pass, which is very expensive.
  • the known wet electrostatic precipitator has a very poor utilization of the housing cross section.
  • the effectively usable, square gas flow cross-section is less than 50% of the clear housing cross-section, which means that the cross-sectional area required for a specific gas throughput is burdened with unnecessarily high investment costs, given the gas velocity.
  • Precipitation electrode plates the height of which - depending on the type of dust and the other conditions - exceed 3 to 5 m, are therefore ruled out because they can no longer be effectively rinsed.
  • the converter exhaust gases are usually saturated before entering the separation fields, so that condensate is also deposited on the precipitation electrodes together with the moist dust. Since the converter exhaust gases occur intermittently, there is enough time in the converter's blowing pauses to clean the precipitation electrodes by spraying flushing liquid on them. A continuous rinse is therefore not necessary.
  • the flushing is switched off in order to be able to operate the electrostatic precipitator with the highest possible voltage and to avoid impairment of the voltage regulation by sprayed-in liquid droplets.
  • plate-shaped precipitation electrodes 9 are arranged in a circular cylindrical housing 1 parallel to the gas flow direction and suspended in the housing 1 via removal devices 13.
  • the separating fields are divided in height, the upper parts being designated 5 and the lower parts 6. Dement - speaking also need separate Abtrags wornen 13 are provided.
  • the precipitation electrodes 9 of the lower part 6 are offset from the precipitation electrodes 9 of the upper part 5 by half an aisle width, which will be discussed in more detail in connection with FIG. 5.
  • a part of the removal devices 4 for the spray electrodes is located outside the housing 1.
  • FIG. 2 how the separating fields 2 and 3 arranged in the housing are arranged one behind the other in the direction of gas flow and differently divided in height into upper and lower parts 5 and 6 (division level 7).
  • the direction of gas flow is indicated by an arrow. 4 again designates the upper parts of the removal device for the spray electrodes.
  • the cross section according to FIG. 3 shows how the precipitation electrodes 9 and the spray electrodes 11 are arranged alternately transversely to the gas flow direction.
  • the ablation devices 4 for the spray electrodes 11 consist of insulators arranged in special housings above the actual filter housing 1, to which support rods are fastened, which in turn are connected to the support frames for the wire or ribbon-shaped spray electrodes. Details have not been presented because they belong to the prior art. It should only be mentioned that the components appearing approximately semicircular also belong to the removal devices 4 for the spray electrodes 11. They are arranged in front of and behind the fields of the precipitation electrodes in the gas flow direction and ensure the removal and equidistant adjustment of the frames for the spray electrodes 11.
  • FIG. 4 shows the rinsing device together with the precipitation electrodes 9.
  • the rinsing pipes 10 are supplied with liquid, which is sprayed under pressure by means of spray nozzles against the precipitation electrodes 9.
  • the flushing pipes 10 for the lower part of the Nieder Impact electrodes 9 are used at the same time to adjust the lower ends of the precipitation electrodes 9 of the upper part. In this way it is possible to achieve the inevitable subdivision in height without taking up a lot of space and to limit the “field-free gas flow cross-section to a minimum. In connection with the offset arrangement of the precipitation electrodes 9, an optimal cleaning is also ensured.
  • the precipitation electrodes 9 are arranged, namely in the lower part offset by a half aisle width B from the upper part.
  • the rinsing tubes 10 can be arranged in the same plane as the upper precipitation electrodes 9 and thus allow an optimal arrangement of the spray nozzles 12 and the lateral adjustment of the upper precipitation electrodes 9 already mentioned.
  • an optimal utilization of the housing cross-section available for the gas flow is achieved without any restrictions being accepted with regard to the necessary distances of the spray system from the precipitation electrodes and the devices for supplying and spraying the cleaning liquid Need to become.
  • the plate height which was limited with regard to the cleaning of the precipitation electrodes, on the one hand, and the large gas flow cross-section required, on the other hand, could be implemented constructively in a pressure-resistant wet electrostatic precipitator.
  • a dedusting device is now available, which enables much better gas cleaning compared to washers with significantly less energy consumption.

Landscapes

  • Electrostatic Separation (AREA)
  • Treating Waste Gases (AREA)
EP83200197A 1982-04-24 1983-02-08 Nasselektrofilter für Konverterabgase Expired EP0092854B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3215400 1982-04-24
DE19823215400 DE3215400A1 (de) 1982-04-24 1982-04-24 Nasselektrofilter fuer konverterabgase

Publications (2)

Publication Number Publication Date
EP0092854A1 EP0092854A1 (de) 1983-11-02
EP0092854B1 true EP0092854B1 (de) 1986-05-07

Family

ID=6161888

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83200197A Expired EP0092854B1 (de) 1982-04-24 1983-02-08 Nasselektrofilter für Konverterabgase

Country Status (6)

Country Link
US (1) US4505724A (enrdf_load_stackoverflow)
EP (1) EP0092854B1 (enrdf_load_stackoverflow)
JP (1) JPS58189053A (enrdf_load_stackoverflow)
AU (1) AU560806B2 (enrdf_load_stackoverflow)
CS (1) CS268657B2 (enrdf_load_stackoverflow)
DE (2) DE3215400A1 (enrdf_load_stackoverflow)

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SE462421B (sv) * 1988-11-04 1990-06-25 Boliden Contech Ab Anordning vid vaatelektrofilter
JPH02177771A (ja) * 1988-12-28 1990-07-10 Nec Home Electron Ltd ゴーストキャンセラ
US20070148061A1 (en) * 1998-11-05 2007-06-28 The Sharper Image Corporation Electro-kinetic air transporter and/or air conditioner with devices with features for cleaning emitter electrodes
US6176977B1 (en) * 1998-11-05 2001-01-23 Sharper Image Corporation Electro-kinetic air transporter-conditioner
US20030206837A1 (en) 1998-11-05 2003-11-06 Taylor Charles E. Electro-kinetic air transporter and conditioner device with enhanced maintenance features and enhanced anti-microorganism capability
US7220295B2 (en) * 2003-05-14 2007-05-22 Sharper Image Corporation Electrode self-cleaning mechanisms with anti-arc guard for electro-kinetic air transporter-conditioner devices
US7318856B2 (en) * 1998-11-05 2008-01-15 Sharper Image Corporation Air treatment apparatus having an electrode extending along an axis which is substantially perpendicular to an air flow path
US6544485B1 (en) * 2001-01-29 2003-04-08 Sharper Image Corporation Electro-kinetic device with enhanced anti-microorganism capability
US20020150520A1 (en) * 1998-11-05 2002-10-17 Taylor Charles E. Electro-kinetic air transporter-conditioner devices with enhanced emitter electrode
US20050210902A1 (en) 2004-02-18 2005-09-29 Sharper Image Corporation Electro-kinetic air transporter and/or conditioner devices with features for cleaning emitter electrodes
US20020122751A1 (en) * 1998-11-05 2002-09-05 Sinaiko Robert J. Electro-kinetic air transporter-conditioner devices with a enhanced collector electrode for collecting more particulate matter
US7695690B2 (en) 1998-11-05 2010-04-13 Tessera, Inc. Air treatment apparatus having multiple downstream electrodes
US6350417B1 (en) * 1998-11-05 2002-02-26 Sharper Image Corporation Electrode self-cleaning mechanism for electro-kinetic air transporter-conditioner devices
US20050163669A1 (en) * 1998-11-05 2005-07-28 Sharper Image Corporation Air conditioner devices including safety features
US20070009406A1 (en) * 1998-11-05 2007-01-11 Sharper Image Corporation Electrostatic air conditioner devices with enhanced collector electrode
US20050199125A1 (en) * 2004-02-18 2005-09-15 Sharper Image Corporation Air transporter and/or conditioner device with features for cleaning emitter electrodes
US7405672B2 (en) * 2003-04-09 2008-07-29 Sharper Image Corp. Air treatment device having a sensor
US7077890B2 (en) * 2003-09-05 2006-07-18 Sharper Image Corporation Electrostatic precipitators with insulated driver electrodes
US7724492B2 (en) 2003-09-05 2010-05-25 Tessera, Inc. Emitter electrode having a strip shape
US20050051420A1 (en) * 2003-09-05 2005-03-10 Sharper Image Corporation Electro-kinetic air transporter and conditioner devices with insulated driver electrodes
US7906080B1 (en) 2003-09-05 2011-03-15 Sharper Image Acquisition Llc Air treatment apparatus having a liquid holder and a bipolar ionization device
US7517503B2 (en) * 2004-03-02 2009-04-14 Sharper Image Acquisition Llc Electro-kinetic air transporter and conditioner devices including pin-ring electrode configurations with driver electrode
US20050095182A1 (en) * 2003-09-19 2005-05-05 Sharper Image Corporation Electro-kinetic air transporter-conditioner devices with electrically conductive foam emitter electrode
US7767169B2 (en) * 2003-12-11 2010-08-03 Sharper Image Acquisition Llc Electro-kinetic air transporter-conditioner system and method to oxidize volatile organic compounds
US20050279905A1 (en) * 2004-02-18 2005-12-22 Sharper Image Corporation Air movement device with a quick assembly base
US20060018812A1 (en) * 2004-03-02 2006-01-26 Taylor Charles E Air conditioner devices including pin-ring electrode configurations with driver electrode
US7638104B2 (en) * 2004-03-02 2009-12-29 Sharper Image Acquisition Llc Air conditioner device including pin-ring electrode configurations with driver electrode
US20060018810A1 (en) * 2004-07-23 2006-01-26 Sharper Image Corporation Air conditioner device with 3/2 configuration and individually removable driver electrodes
US20060016333A1 (en) * 2004-07-23 2006-01-26 Sharper Image Corporation Air conditioner device with removable driver electrodes
US20060016336A1 (en) * 2004-07-23 2006-01-26 Sharper Image Corporation Air conditioner device with variable voltage controlled trailing electrodes
US7285155B2 (en) * 2004-07-23 2007-10-23 Taylor Charles E Air conditioner device with enhanced ion output production features
US7311762B2 (en) * 2004-07-23 2007-12-25 Sharper Image Corporation Air conditioner device with a removable driver electrode
US20060018807A1 (en) * 2004-07-23 2006-01-26 Sharper Image Corporation Air conditioner device with enhanced germicidal lamp
US7833322B2 (en) * 2006-02-28 2010-11-16 Sharper Image Acquisition Llc Air treatment apparatus having a voltage control device responsive to current sensing
DE102014018903A1 (de) * 2014-12-17 2016-06-23 Eisenmann Se Vorrichtung und Verfahren zum Abscheiden von Partikeln aus einem Abluftstrom einer Beschichtungskabine
CN110184409B (zh) * 2019-07-18 2023-12-05 无锡红旗除尘设备有限公司 转炉一次烟气超低排放消除烟羽的干法电袋组合除尘系统
CN110184410B (zh) * 2019-07-18 2023-12-05 无锡红旗除尘设备有限公司 转炉一次烟气超低排放和消除烟羽的干法除尘系统
CN114825985A (zh) * 2022-03-18 2022-07-29 河北邯峰发电有限责任公司 高频电源闭环节能控制器
CN115256078B (zh) * 2022-08-10 2024-04-26 湖北华宁防腐技术股份有限公司 一种用于衬里贴合的金属钢材打磨装置

Citations (1)

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CA553908A (en) * 1958-03-04 H. Richards David Electrostatic precipitators

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FR18407E (fr) * 1912-07-31 1914-04-24 Erwin Moeller Procédé et appareil pour la captation électrique de corps en suspension dans les fluides isolants et particulièrement dans les gaz
US1250088A (en) * 1914-04-18 1917-12-11 Int Precipitation Co Process and apparatus for separation of suspended particles from gases.
DE322188C (de) * 1918-12-05 1920-06-22 Siemens Schuckertwerke G M B H Elektrische Anlage zur Reinigung von Gasen
US1794616A (en) * 1927-05-28 1931-03-03 Int Precipitation Co Apparatus for electrical precipitation
FR904334A (fr) * 1943-11-12 1945-11-02 Zschocke Werke Ag Procédé pour l'épuration électrique des gaz ccntenant des poussières à l'aide d'électro-filtres humides comportant des électrodes à plaques, tubes ou fils
US2588364A (en) * 1947-05-16 1952-03-11 Koppers Co Inc Electrostatic precipitator
FR1081309A (fr) * 1952-07-21 1954-12-17 Metallgesellschaft Ag Dispositif d'arrosage pour électro-filtres fonctionnant par la voie humide
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DE1900526B2 (de) * 1969-01-07 1971-12-30 Metallgesellschaft Ag, 6000 Frankfurt Elektrostatischer staubabscheider
CA950401A (en) * 1970-06-22 1974-07-02 Olaf Nigol Separation and removal of selected gas components from gaseous mixtures
DE2635789C2 (de) * 1976-08-09 1982-08-12 Vsesojuznyj naučno-issledovatel'skij gorno-metallurgičeskij institut cvetnych metallov, Ust-Kamenogorsk, Vostočno-Kasachstanskaja oblast' Horizontalelektroabscheider zur Entstaubung von staubhaltigen Schwefelgasen
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Patent Citations (1)

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CA553908A (en) * 1958-03-04 H. Richards David Electrostatic precipitators

Also Published As

Publication number Publication date
AU560806B2 (en) 1987-04-16
EP0092854A1 (de) 1983-11-02
CS268657B2 (en) 1990-04-11
CS276983A2 (en) 1989-08-14
JPS58189053A (ja) 1983-11-04
JPH0335983B2 (enrdf_load_stackoverflow) 1991-05-30
DE3215400A1 (de) 1983-10-27
AU1391283A (en) 1983-10-27
US4505724A (en) 1985-03-19
DE3363327D1 (en) 1986-06-12

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