EP0032689B1 - Verfahren zum Optimieren der Klopfungshäufigkeit einer Elektrofilteranlage - Google Patents

Verfahren zum Optimieren der Klopfungshäufigkeit einer Elektrofilteranlage Download PDF

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Publication number
EP0032689B1
EP0032689B1 EP81100118A EP81100118A EP0032689B1 EP 0032689 B1 EP0032689 B1 EP 0032689B1 EP 81100118 A EP81100118 A EP 81100118A EP 81100118 A EP81100118 A EP 81100118A EP 0032689 B1 EP0032689 B1 EP 0032689B1
Authority
EP
European Patent Office
Prior art keywords
frequency
dust
knocking
electrofilter
dust loading
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
EP81100118A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0032689A1 (de
Inventor
Helmut Dipl.-Ing. Herklotz
Günter Mehler
Franz Dipl.-Ing. Neulinger
Helmut Dipl.-Ing. Schummer
Horst Dr. Dipl.-Ing. Daar
Walter Dipl.-Ing. Schmidt
Heinrich Winkler
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
Siemens AG
Original Assignee
Metallgesellschaft AG
Siemens 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, Siemens AG filed Critical Metallgesellschaft AG
Priority to AT81100118T priority Critical patent/ATE5567T1/de
Publication of EP0032689A1 publication Critical patent/EP0032689A1/de
Application granted granted Critical
Publication of EP0032689B1 publication Critical patent/EP0032689B1/de
Expired legal-status Critical Current

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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
    • B03C3/74—Cleaning the electrodes
    • B03C3/76—Cleaning the electrodes by using a mechanical vibrator, e.g. rapping gear ; by using impact
    • B03C3/763—Electricity supply or control systems therefor

Definitions

  • the invention relates to a method for optimizing the frequency of knocking of an electrostatic filter system.
  • the dust separated in an electrostatic precipitator settles on the precipitation electrodes of the filter chambers and has to be removed periodically by mechanical tapping. For example, up to four tapping mechanisms are provided per filter chamber. If the period between two taps is chosen too large, the filter efficiency is reduced due to the decreasing effective field strength. On the other hand, dust is whirled up by the knocking, so that a higher residual dust content is currently generated.
  • the object of the present invention is to optimize the knock cycle. This object is achieved according to the invention in that the time interval between the knockings is changed automatically in such a way that the long-term mean value of the measured dust loading of the clean gas tends towards a minimum.
  • the knock cycle at which the smallest amount of dust leaves the filter system can be determined.
  • a device for carrying out the method in an electrostatic filter system consisting of a plurality of filters is advantageously constructed in such a way that a microcomputer is provided as a controller for each filter and all microcomputers have a common master computer connected to a dust loading measuring device for the clean gas.
  • the host computer can then calculate the knock cycle and coordinate the knocking of the individual filters, and this ensures that only one filter is knocked at a time, so that the separation effect of the other filters is still present.
  • the knocking frequency f o is first started and the long-term mean value of the dust load is formed over a certain longer period. After a predetermined time in which this knocking frequency is used, the knocking frequency is increased to the value f l .
  • the electrostatic filter system shown in FIG. 2 consists of the three filters 1, 2 and 3, through which the gas to be cleaned flows in the direction of arrow 5.
  • the dust load S occurring at the outlet of the electrostatic precipitator system; is recorded in a dust loading measuring device 42 and fed to a master computer 4.
  • Each of the schematically shown electrostatic precipitators 1, 2 and 3 consists of the actual filter chamber 11, the high voltage supply 14, the tapping mechanisms 12 and the regulation and control 13 constructed with microcomputers. These operate via a bus 41 with the master computer and receive control commands from there.
  • the host computer 4 also coordinates the knocking of the individual electrostatic filters 1 to 3, i.e. it ensures that only one filter chamber is knocked at a time.

Landscapes

  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Mechanical Engineering (AREA)
  • Electrostatic Separation (AREA)
  • Glass Compositions (AREA)
  • Filtering Materials (AREA)
  • Valve Device For Special Equipments (AREA)
  • Photoreceptors In Electrophotography (AREA)
  • Electrical Control Of Ignition Timing (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)
  • Filtering Of Dispersed Particles In Gases (AREA)
EP81100118A 1980-01-17 1981-01-09 Verfahren zum Optimieren der Klopfungshäufigkeit einer Elektrofilteranlage Expired EP0032689B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT81100118T ATE5567T1 (de) 1980-01-17 1981-01-09 Verfahren zum optimieren der klopfungshaeufigkeit einer elektrofilteranlage.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3001595 1980-01-17
DE19803001595 DE3001595A1 (de) 1980-01-17 1980-01-17 Verfahren zum optimieren der klopfungshaeufigkeit einer elektrofilteranlage

Publications (2)

Publication Number Publication Date
EP0032689A1 EP0032689A1 (de) 1981-07-29
EP0032689B1 true EP0032689B1 (de) 1983-12-14

Family

ID=6092306

Family Applications (1)

Application Number Title Priority Date Filing Date
EP81100118A Expired EP0032689B1 (de) 1980-01-17 1981-01-09 Verfahren zum Optimieren der Klopfungshäufigkeit einer Elektrofilteranlage

Country Status (7)

Country Link
US (1) US4432062A (xx)
EP (1) EP0032689B1 (xx)
JP (1) JPS56105763A (xx)
AT (1) ATE5567T1 (xx)
AU (1) AU538328B2 (xx)
DE (2) DE3001595A1 (xx)
ZA (1) ZA81293B (xx)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3326040A1 (de) * 1983-07-20 1985-01-31 Siemens AG, 1000 Berlin und 8000 München Verfahren zum betriebsmaessigen feststellen des vorhandenseins eines klopftaktoptimums fuer die elektrodenklopfung eines elektrofilters
US4624685A (en) * 1985-01-04 1986-11-25 Burns & McDonnell Engineering Co., Inc. Method and apparatus for optimizing power consumption in an electrostatic precipitator
US4928456A (en) * 1988-06-16 1990-05-29 Nwl Transformers Process for rapping of electrostatic precipitator surfaces
JPH0313317U (xx) * 1989-06-27 1991-02-12
JPH0417421U (xx) * 1990-06-05 1992-02-13
JPH05283510A (ja) * 1992-03-31 1993-10-29 Nippon Seiko Kk 位置決めテーブル装置
DE102004036210B4 (de) * 2004-07-26 2006-08-31 Siemens Ag Steuereinrichtung sowie Steuerverfahren für Elektrofilter mit einer konfigurierbaren Anzahl paralleler und serieller Filterzonen
DK1967276T3 (da) * 2007-03-05 2019-08-12 General Electric Technology Gmbh En fremgangsmåde til at bestemme støvbelastningen af et elektrostatisk filter og en fremgangsmåde og en indretning til at styre bankningen af et elektrostatisk filter
PL1967277T3 (pl) * 2007-03-05 2019-01-31 General Electric Technology Gmbh Sposób sterowania kolejnością opukiwania płyt elektrody zbiorczej odpylacza elektrostatycznego ESP
EP1967275A1 (en) 2007-03-05 2008-09-10 Alstom Technology Ltd A method and a control system for controlling the operation of a last field of an electrostatic precipitator
WO2018109522A1 (en) * 2016-12-12 2018-06-21 Pramukha Technologies Pvt. Ltd. System and method for efficient, ambient air purification
FI127864B (en) * 2016-12-22 2019-04-15 Valmet Technologies Oy Procedure and arrangements

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2436043A1 (de) * 1974-07-26 1976-02-05 Saarbergwerke Ag Elektrofilter

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB903163A (en) * 1960-03-15 1962-08-15 Cottrell Res Inc Improvements in or relating to electrostatic precipitators
CH413974A (fr) * 1964-04-14 1966-05-31 Battelle Memorial Institute Procédé de réglage par oscillations d'une installation industrielle et appareil pour la mise en oeuvre de ce procédé
US3466430A (en) * 1967-01-11 1969-09-09 Collins Radio Co Extreme parameter search control system
US3754379A (en) * 1971-02-11 1973-08-28 Koppers Co Inc Apparatus for electrode rapper control
US3893828A (en) * 1973-06-11 1975-07-08 Wahlco Inc Electrostatic precipitator central monitor and control system
US4008057A (en) * 1974-11-25 1977-02-15 Envirotech Corporation Electrostatic precipitator electrode cleaning system
US3960320A (en) * 1975-04-30 1976-06-01 Forney Engineering Company Combustion optimizer
US4195699A (en) * 1978-06-29 1980-04-01 United States Steel Corporation Drilling optimization searching and control method

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2436043A1 (de) * 1974-07-26 1976-02-05 Saarbergwerke Ag Elektrofilter

Also Published As

Publication number Publication date
JPS56105763A (en) 1981-08-22
JPS6341620B2 (xx) 1988-08-18
ATE5567T1 (de) 1983-12-15
EP0032689A1 (de) 1981-07-29
AU538328B2 (en) 1984-08-09
ZA81293B (en) 1982-02-24
DE3161603D1 (en) 1984-01-19
DE3001595A1 (de) 1981-07-23
US4432062A (en) 1984-02-14
AU6626981A (en) 1981-07-23

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