DE511643C - Process for cleaning the collecting electrodes of electrical gas purifiers - Google Patents

Process for cleaning the collecting electrodes of electrical gas purifiers

Info

Publication number
DE511643C
DE511643C DEM107060D DEM0107060D DE511643C DE 511643 C DE511643 C DE 511643C DE M107060 D DEM107060 D DE M107060D DE M0107060 D DEM0107060 D DE M0107060D DE 511643 C DE511643 C DE 511643C
Authority
DE
Germany
Prior art keywords
electrodes
cleaning
magnetic
natural frequency
electrode
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
DEM107060D
Other languages
German (de)
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
Priority to DEM107060D priority Critical patent/DE511643C/en
Priority to BE364508A priority patent/BE364508A/fr
Application granted granted Critical
Publication of DE511643C publication Critical patent/DE511643C/en
Expired legal-status Critical Current

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
    • 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
    • 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
    • B03C3/765—Cleaning the electrodes by using a mechanical vibrator, e.g. rapping gear ; by using impact with electromagnetic rappers

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
  • Cleaning In General (AREA)

Description

Verfahren zum Reinigen der Niederschlagselektroden elektrischer Gasreiniger ElektromagnetischeKlopfvorrichtungen zur Reinigung der Niederschlagselektroden elektrischer Gasreiniger sind bekannt. Sie haben den Nachteil, daß man relativ große Energien braucht, um solche Beschleunigungskräfte für die an den Elektroden sitzenden Teilchen hervorzurufen, daß ein praktisch vollständiges Abschleudern des Staubes erreicht wird. Außerdem tritt bei Klopfwerken der üblichen Art zwischen je zwei Stößen eine starke Dämpfung der Elektrodenerschütterung durch das Klopfwerkzeug auf. Weitere Nachteile sind die starke Geräuschbildung und die allen diesen mechanischen Vorrichtungen anhaftende Betriebsunsicherheit.Process for cleaning the collecting electrodes of electrical gas purifiers Electromagnetic knocking devices for cleaning the collecting electrodes electrically Gas cleaners are known. They have the disadvantage that they have relatively large energies needs to generate such acceleration forces for the particles sitting on the electrodes cause that achieved a practically complete throwing off of the dust will. In addition, with knocking mechanisms of the usual type, one impact occurs between every two impacts strong damping of the electrode vibration by the tapping tool. Further Disadvantages are the high level of noise and all these mechanical devices adherent operational uncertainty.

Alles dies wird gemäß der Erfindung behoben durch Anwendung oszillierender magnetischer Kräfte, die unmittelbar auf die Niederschlagselektroden einwirken und sie zu kräftigen Resonanzschwingungen veranlassen, ohne daß zwischen dem Elektrodensystem und den die magnetischen Kräfte hervorrufenden Vorrichtungen eine Berührung eintritt. Die Dämpfung ist infolgedessen auf ein Minimum beschränkt. Dabei hat sich gezeigt, daß man bei richtiger Bemessung der Teile zu einem geringen Bruchteil derjenigen Leistung kommt, die bei gleichem Reinigungseffekt für ein Klopfwerk der bekannten Art aufgewendet werden müßte.All this is remedied according to the invention by using oscillating magnetic forces that act directly on the collecting electrodes and they cause strong resonance vibrations without any between the electrode system and the devices producing the magnetic forces are contacted. As a result, the attenuation is kept to a minimum. It has been shown that with correct dimensioning of the parts you get a small fraction of those Performance comes with the same cleaning effect for a knocking mechanism of the known Art would have to be used.

Zur Erzielung starker Resonanzwirkung wird die Frequenz der magnetischen Kräfte nach dem Verfahren der Erfindung so eingestellt, daß sie in der Nähe der mechanischen Eigenschwingungszahlen des betreffenden Elektr odensystems oder der bete efenden Elektrode liegt. Der durch ein Klopfwerk leicht verursachte Verschleiß kommt hier gänzlich in Fortfall und die unangenehmen Schlaggeräusche sind ersetzt durch ein gleichbleibendes schwaches Summen oder Tönen.To achieve a strong resonance effect, the frequency of the magnetic Forces adjusted by the method of the invention so that they are close to the mechanical natural frequency of the relevant electrode system or the pray efenden electrode lies. Wear easily caused by a knocking mechanism is completely eliminated and the unpleasant beating noises are replaced by a constant faint hum or tones.

Die Vorrichtungen zur Erzeugung wechselnder Magnetfelder können z. B. in bekannter Weise in Elektromagneten mit oder ohne Eisenkernen bestehen; es hat sich als besonders vorteilhaft erwiesen, für je zwei nebeneinander befindliche Elektroden einen dazwischenliegenden Elektromagneten zu verwenden, der in gleicher Weise synchron auf beide Elektroden einwirkt und daher selbst von mechanischen Kräften entlastet ist.The devices for generating alternating magnetic fields can, for. B. exist in a known manner in electromagnets with or without iron cores; it has proven to be particularly advantageous for every two adjacent Electrodes to use an intermediate electromagnet, which in the same Way acts synchronously on both electrodes and therefore itself from mechanical forces is relieved.

Sollen mehrere Elektroden von ungleicher Eigenschwingungszahl gereinigt werden, so erfolgt dies erfindungsgemäß nacheinander in der Weise, daß ein frequenzveränderlicher Wechselstrom verwendet wird, den man kontinuierlich oder diskontinuierlich die kritischen Frequenzen durcheilen läßt.If several electrodes are to be cleaned of unequal natural frequencies are, this is done according to the invention one after the other in such a way that a frequency-variable Alternating current is used, which is continuously or discontinuously the critical Let frequencies rush through.

Zur Einstellung und Veränderung der jeweiligen Frequenz des die Elektromagneten speisenden Wechselstromes können alle dazu geeigneten bekannten Einrichtungen verwendet werden. Vorteilhaft wird ein Umformeraggregat benutzt, dessen Drehzahl in bekannter Weise innerhalb des erforderlichen Bereiches von Hand aus oder selbsttätig (periodisch) verändert wird- , Zur Korrektur derEigenschwingungszahlen können an- den in geeigneter Weise angebrachte Massen oder Versteifungen (Federn) dienen.To adjust and change the respective frequency of the electromagnet supplying alternating current, all known devices suitable for this purpose can be used will. A converter unit is advantageously used, the speed of which is known way within the required range by hand or automatically (periodically) is changed-, to correct the natural oscillation numbers, other suitable Wise attached masses or stiffeners (springs) are used.

Sind die Niederschlagselektroden selbst aus nichtmagnetischem Werkstoff, so werden erfindungsgemäß an ihnen den Elektromagneten zugeordnete Anker aus magnetischem Werkstoff fest angebracht.Are the collecting electrodes themselves made of non-magnetic material, according to the invention, the electromagnets associated with them are made of magnetic armature Material firmly attached.

Claims (1)

PATENTANSPRÜCHE: i. Verfahren zum Reinigen der Niederschlagselektroden elektrischer Gasreiniger, dadurch gekennzeichnet, daß man unmittelbar auf die Elektroden lediglich durch magnetische Felder oszillierende magnetische Kräfte solcher Schwingungszahlen einwirken läßt, die in der Nähe der mechanischen Eigenschwingungszahl der Elektrode oder des Elektrodensystems liegen. a. Vorrichtung für das Verfahren nach Anspruch i, dadurch gekennzeichnet, daß zwischen je zwei Elektroden Elektromagnete angeordnet sind, deren eine oder mehrere Wicklungen von Wechselströmen zur Erzeugung der wechselnden Magnetfelder durchflossen werden. 3. Verfahren nach Anspruch i, dadurch gekennzeichnet, daß zur aufeinanderfolgenden Reinigung mehrerer Elektroden ungleicher Eigenschwingungszahl ein frequenzveränderlicher Wechselstrom verwendet wird, den man kontinuierlich oder diskontinuierlich die kritischen Frequenzen durcheilen läßt. ¢. Vorrichtung für das Verfahren nach Anspruch 3, gekennzeichnet durch Verwendung eines Umformeraggregates, dessen Drehzahl in an sieh bekannter Weise innerhalb des erforderlichen Bereiches von Hand aus oder selbsttätig (in bestimmter Zeitfolge) verändert wird. 5. Verfahren nach Anspruch i, gekennzeichnet durch dieBefestigung vonMassen oder Versteifungen (z. B. Federn) an der oder den Elektroden zum Angleichen der Eigenschwingungszahl der Elektroden. 6. Vorrichtung für das Verfahren nach Anspruch i, dadurch gekennzeichnet, daß für die Reinigung von Elektroden aus nichtmagnetischem Baustoff an ihnen den Elektromagneten zugeordnete Anker aus magnetischem Werkstoff angeordnet sind.PATENT CLAIMS: i. Procedure for cleaning the collecting electrodes electric gas cleaner, characterized in that one directly touches the electrodes only by magnetic fields oscillating magnetic forces of such oscillation numbers can act that is close to the mechanical natural frequency of the electrode or the electrode system. a. Apparatus for the method of claim i, characterized in that electromagnets are arranged between each pair of electrodes are whose one or more windings of alternating currents to generate the alternating Magnetic fields are flowed through. 3. The method according to claim i, characterized in that that for the successive cleaning of several electrodes of unequal natural frequency a variable-frequency alternating current is used, which is continuous or discontinuously lets the critical frequencies rush through. ¢. Device for the method according to claim 3, characterized by the use of a converter unit, its speed in a known manner within the required range is changed manually or automatically (in a certain time sequence). 5. Procedure according to claim i, characterized by the attachment of masses or stiffeners (e.g. springs) on the electrode or electrodes to adjust the natural frequency of the electrodes. 6. Device for the method according to claim i, characterized in that that for cleaning electrodes made of non-magnetic building material on them Electromagnet associated armature are arranged from magnetic material.
DEM107060D 1928-10-21 1928-10-21 Process for cleaning the collecting electrodes of electrical gas purifiers Expired DE511643C (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DEM107060D DE511643C (en) 1928-10-21 1928-10-21 Process for cleaning the collecting electrodes of electrical gas purifiers
BE364508A BE364508A (en) 1928-10-21 1929-10-11

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEM107060D DE511643C (en) 1928-10-21 1928-10-21 Process for cleaning the collecting electrodes of electrical gas purifiers

Publications (1)

Publication Number Publication Date
DE511643C true DE511643C (en) 1930-10-31

Family

ID=7326081

Family Applications (1)

Application Number Title Priority Date Filing Date
DEM107060D Expired DE511643C (en) 1928-10-21 1928-10-21 Process for cleaning the collecting electrodes of electrical gas purifiers

Country Status (2)

Country Link
BE (1) BE364508A (en)
DE (1) DE511643C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE916945C (en) * 1949-11-15 1954-08-23 Schenck Gmbh Carl Shaking device for cleaning the surface of precipitation plates in electric dust filters

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE916945C (en) * 1949-11-15 1954-08-23 Schenck Gmbh Carl Shaking device for cleaning the surface of precipitation plates in electric dust filters

Also Published As

Publication number Publication date
BE364508A (en) 1929-11-30

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