EP0163047A2 - Electrofilter - Google Patents

Electrofilter Download PDF

Info

Publication number
EP0163047A2
EP0163047A2 EP85103627A EP85103627A EP0163047A2 EP 0163047 A2 EP0163047 A2 EP 0163047A2 EP 85103627 A EP85103627 A EP 85103627A EP 85103627 A EP85103627 A EP 85103627A EP 0163047 A2 EP0163047 A2 EP 0163047A2
Authority
EP
European Patent Office
Prior art keywords
electrodes
spray
distance
toothed
band
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.)
Granted
Application number
EP85103627A
Other languages
German (de)
French (fr)
Other versions
EP0163047A3 (en
EP0163047B1 (en
Inventor
Jürgen Dipl.-Ing. Seipenbusch
Karl-Heinz Dipl.-Ing. Daum
Erwin Kandler
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.)
Hugo Petersen GmbH
Original Assignee
Hugo Petersen GmbH
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=6234659&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0163047(A2) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Hugo Petersen GmbH filed Critical Hugo Petersen GmbH
Publication of EP0163047A2 publication Critical patent/EP0163047A2/en
Publication of EP0163047A3 publication Critical patent/EP0163047A3/en
Application granted granted Critical
Publication of EP0163047B1 publication Critical patent/EP0163047B1/en
Expired legal-status Critical Current

Links

Images

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
    • 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
    • B03C3/40—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
    • B03C2201/00—Details of magnetic or electrostatic separation
    • B03C2201/10—Ionising electrode has multiple serrated ends or parts

Definitions

  • the invention relates to electrostatic precipitators with tubular or plate-shaped precipitation electrodes and toothed spray electrodes.
  • GB-PS 840.853 discloses electrostatic precipitators with tubular precipitation electrodes and spray electrodes in the form of toothed strips. It is also known to use spray electrodes in the form of toothed strips which are twisted about their longitudinal axis (AT-PS 121.928). Another possibility of designing the spray electrodes is shown in DE-AS 1.201.816. Here, band-shaped spray electrodes with sawtooth-like spray tips are used, in which the spray tips of the band are bent opposite one another at a certain angle from the plane of the band and additionally have a further sharp-edged bend on the same side.
  • the invention is based on the object of further improving the separation performance of electrostatic filters with toothed spray electrodes.
  • electrostatic filters are provided with tubular or plate-shaped precipitation electrodes and toothed spray electrodes arranged in the center, the ratio of the distance (r) of the spray tips from the central axis in the case of tubular precipitation electrodes or the center plane between plate-shaped precipitation electrodes to the distance (R)
  • the central plane or central axis of the walls of the precipitation electrodes is between 0.35 and 0.7.
  • the ratio r / R is preferably between 0.4 and 0.65.
  • the surprising finding that highly efficient electrostatic precipitators are reproducibly accessible by observing the dimensional ratio r / R specified above can preferably be applied to electrostatic precipitators whose toothed, band-shaped spray electrodes are twisted about their central axis by twisting.
  • An alternative preferred embodiment of the electrostatic filter according to the invention has band-shaped toothed spray electrodes which, by bending the teeth from the band plane, form a three-dimensional one Body have been reshaped.
  • the design feature according to the invention, 0.35 r r / R 0.7, which determines the optimal separation behavior of the electrostatic filters designed according to the invention, is independent of the absolute dimensions of the electrostatic precipitator and the cross-sectional geometry of tubular precipitation electrodes.
  • diagram I The effect of the distance ratio r / R on the separation efficiency (expressed by the quotient of the particle migration speed w and the maximum particle migration speed w max is shown in diagram I (page 7).
  • the values w / w max are plotted for tubular precipitation electrodes and various toothed spray electrodes (either made by twisting the toothed spray electrode band or bending the teeth from the band plane) have been obtained.
  • the points entered are measured values and the curve shown represents the compensation curve.
  • Example 2 In a tube electrostatic precipitator of the type described in Example 1, but with an inner tube diameter of 250 mm, the operation was carried out under the same specific conditions as in Example 1. The results are as follows:
  • Example 2 The same electrodes as in Example 1 were used in a plate electrostatic filter with a plate spacing of 200 mm. According to the different definition tion of r (here the distance of the spray tip from the imaginary center plane between the two parallel plate electrodes) results in deviating absolute values for r in comparison to the aforementioned examples 1 and 2.

Landscapes

  • Electrostatic Separation (AREA)

Abstract

1. Electrofilter having plate- or tube-like collecting electrodes (5) and toothed discharge electrodes (6) centrally arranged, characterized in that the ratio of the distance (r) of the discharge tips (1, 2, 3, 4) from the central axis in case of tube-like discharge electrodes (5) or of the distance (r) of the discharge tips from the central plane between plate-like discharge electrodes (5) to the distance (R) of the central plane or the central axis from the walls (5) of the respectives discharge electrodes is lying between 0,4 and 0,6.

Description

Die Erfindung betrifft Elektrofilter mit rohrförmigen oder plattenförmigen Niederschlagselektroden und gezahnten Sprühelektroden.The invention relates to electrostatic precipitators with tubular or plate-shaped precipitation electrodes and toothed spray electrodes.

Seit langem ist es bekannt, zur Abscheidung von Schwebekörpern aller vorkommenden Grössen, auch feinster Nebel und Stäube, Elektrofilter mit unterschiedlichen gestalteten Niederschlags- und Sprühelektroden einzusetzen.It has been known for a long time to use electrostatic precipitators with differently designed precipitation and spray electrodes for the separation of floats of all sizes, including the finest mists and dusts.

Bei den im Stand der Technik bekannten Ansätzen zur Lösung des Problems, höchste Abscheideleistung auch bei der Entfernung feinster Partikel aus Gasströmen zu erzielen, konzentrierte sich die Aufmerksamkeit bislang in erster Linie auf die Suche nach einer optimalen Gestaltung des Sprühelektrodenprofils.In the approaches known in the prior art for solving the problem of achieving the highest separation performance even when removing the finest particles from gas streams, attention has hitherto focused primarily on the search for an optimal design of the spray electrode profile.

So sind aus der GB-PS 840.853 Elektrofilter mit rohrförmigen Niederschlagselektroden und Sprühelektroden in Form gezahnter Bänder bekannt. Es ist weiterhin bekannt, Sprühelektroden in Form gezahnter, um ihre Längsachse verdrehter Bänder einzusetzen (AT-PS 121.928). Eine weitere Möglichkeit der Gestaltung der Sprühelektroden ist in der DE-AS 1.201.816 aufgezeigt. Hier werden bandförmige Sprühelektroden mit sägezahnartigen Sprühspitzen verwendet, bei denen die Sprühspitzen des Bandes entgegengesetzt zueinander unter einem bestimmten Winkel aus der Bandebene abgebogen sind und zusätzlich einen weiteren scharfkantigen Knick zur gleichen Seite hin aufweisen.GB-PS 840.853 discloses electrostatic precipitators with tubular precipitation electrodes and spray electrodes in the form of toothed strips. It is also known to use spray electrodes in the form of toothed strips which are twisted about their longitudinal axis (AT-PS 121.928). Another possibility of designing the spray electrodes is shown in DE-AS 1.201.816. Here, band-shaped spray electrodes with sawtooth-like spray tips are used, in which the spray tips of the band are bent opposite one another at a certain angle from the plane of the band and additionally have a further sharp-edged bend on the same side.

Der Erfindung liest die Aufgabe zugrunde, die Abscheideleistung von Elekrofiltern mit gezahnten Sprühelektroden weiter zu verbessern.The invention is based on the object of further improving the separation performance of electrostatic filters with toothed spray electrodes.

Diese Aufgabe wird erfindungsgemäß dadurch gelöst, daß Elektrofilter mit rohr- oder plattenförmigen Niederschlagselektroden und mittig angeordneten gezahnten Sprühelektroden bereitgestellt werden, deren Verhältnis des Abstandes (r) der Sprühspitzen von der Mittelachse bei rohrförmigen Niederschlagselektroden oder der Mittelebene zwischen plattenförmigen Niederschlagselektroden zum Abstand (R) der Mittelebene oder Mittelachse von den Wänden der Niederschlagselektroden zwischen 0,35 und 0,7 liegt. Bevorzugt liegt das Verhältnis r/R zwischen 0,4 und 0,65.This object is achieved in that electrostatic filters are provided with tubular or plate-shaped precipitation electrodes and toothed spray electrodes arranged in the center, the ratio of the distance (r) of the spray tips from the central axis in the case of tubular precipitation electrodes or the center plane between plate-shaped precipitation electrodes to the distance (R) The central plane or central axis of the walls of the precipitation electrodes is between 0.35 and 0.7. The ratio r / R is preferably between 0.4 and 0.65.

Der überraschende Befund, daß durch Einhaltung des oben spezifierten Abmessungsverhältnisses r/R reproduzierbar höchsteffiziente Elektrofilter zugänglich sind, lässt sich bevorzugt auf Elektrofilter anwenden, deren gezahnte, bandförmige Sprühelektroden durch Verdrehen um ihre Mittelachse verdrillt sind. Eine alternative bevorzugte Ausprägungsform der erfindungsgemäßen Elektrofilter weist bandförmige gezahnte Sprühelektroden auf, die durch Abbiegen der Zähne aus der Bandebene zu einem dreidimensionalen Körper umgeformt worden sind. Das erfindungsgemäße Konstruktionsmerkmal , 0,35 ≤ r/R 0,7, das das optimale Abscheideverhalten der erfindungsgemäß ausgelegten Elektrofilter bedingt,ist unabhängig von den Absolutmaßen des Elektrofilters und der Querschnittsgeometrie rohrförmiger Niederschlagselektroden.The surprising finding that highly efficient electrostatic precipitators are reproducibly accessible by observing the dimensional ratio r / R specified above can preferably be applied to electrostatic precipitators whose toothed, band-shaped spray electrodes are twisted about their central axis by twisting. An alternative preferred embodiment of the electrostatic filter according to the invention has band-shaped toothed spray electrodes which, by bending the teeth from the band plane, form a three-dimensional one Body have been reshaped. The design feature according to the invention, 0.35 r r / R 0.7, which determines the optimal separation behavior of the electrostatic filters designed according to the invention, is independent of the absolute dimensions of the electrostatic precipitator and the cross-sectional geometry of tubular precipitation electrodes.

Mögliche Ausführungsformen der Erfindung sind in der Zeichnung dargestellt und werden im folgenden näher erläutert:Possible embodiments of the invention are shown in the drawing and are explained in more detail below:

Es zeigt:

  • Fig. 1 den Querschnitt eines Elektrofilters mit rohrförmiger Niederschlagselektrode (5) sechseckiger Grundfläche, deren gezahnte Sprühelektrode (6) mit Sprühspitzen (1,2,3 und 4) versehen ist, die um 45 ° nach vorn (1,3) oder nach hinten gebogen sind (2,4).
  • Fig. 2 den Querschnitt eines Elektrofilters mit quadratischem Grundriß der Niederschlagselektrode (5) dar; die Sprühspitzen (1,3) der Sprühelektrode (6) sind um 45 ° nach vorn, die Sprühspitzen (2,4) sind um 45 ° nach hinten gebogen.
  • Fig. 3 den Querschnitt eines Elektrofilters mit kreisförmiger Grundfläche. 1,2,3,4,5 und 6 haben die gleiche Bedeutung wie in den vorangehenden Figuren.
  • Fig. 4 eine Plattenelektrofilter mit parallel angeordneten Niederschlagselektroden (5) und gezahnter Sprühelektrode (6) mit um 45 ° nach vorn (1,3) und nach hinten (2,4) ausgebogenen Sprühspitzen.
  • Fig. 5 die für alle vorstehend gezeigten Elektrofiltertypen geltende schematische Seitenansicht des senkrecht zu den Niederschlagselektrodenwänden (5) geöffneten Elektrofilters mit mittig angeordneter Sprühelektrode (6). 1,2,3 und 4 stellen die vorstehend beschriebenen Sprühspitzen dar.
It shows:
  • Fig. 1 shows the cross section of an electrostatic precipitator with a tubular precipitation electrode (5) with a hexagonal base, the toothed spray electrode (6) of which is provided with spray tips (1, 2, 3 and 4) which are 45 ° forwards (1,3) or backwards are bent (2.4).
  • Fig. 2 shows the cross section of an electrostatic filter with a square outline of the precipitation electrode (5); the spray tips (1,3) of the spray electrode (6) are 45 ° forward, the spray tips (2,4) are bent 45 ° backward.
  • Fig. 3 shows the cross section of an electrostatic filter with a circular base. 1,2,3,4,5 and 6 have the same meaning as in the previous figures.
  • Fig. 4 shows a plate electrostatic precipitator with parallel arranged precipitation electrodes (5) and toothed spray electrode (6) with 45 ° forward (1,3) and rearward (2,4) spray tips.
  • 5 shows the schematic side view of the electrostatic filter which is open perpendicular to the precipitation electrode walls (5) and applies to all the electrostatic precipitator types shown above with a centrally arranged spray electrode (6). 1,2,3 and 4 represent the spray tips described above.

Die Auswirkung des Abstandsverhältnisses r/R auf die Abscheideleistung (ausgedrückt durch den Quotienten aus der Partikelwanderungsgeschwindigkeit w und der maximalen Partikelwanderungsgeschwindigkeit wmax wird durch das Diagramm I (Seite 7 ) wiedergegeben. In diesem Diagramm sind die Werte w/wmax aufgetragen, die für rohrförmige Niederschlagselektroden und verschiedene gezahnten Sprühelektroden (entweder durch Verdrehen des gezahnten Sprühelektrodenbandes oder Abbiegen der Zähne aus der Bandebene hergestellt) erhalten wurden. Die eingetragenen Punkte sind Messwerte; die eingezeichnete Kurve stellt die Ausgleichskurve da.The effect of the distance ratio r / R on the separation efficiency (expressed by the quotient of the particle migration speed w and the maximum particle migration speed w max is shown in diagram I (page 7). In this diagram the values w / w max are plotted for tubular precipitation electrodes and various toothed spray electrodes (either made by twisting the toothed spray electrode band or bending the teeth from the band plane) have been obtained.The points entered are measured values and the curve shown represents the compensation curve.

Aus dem Diagramm ist zu entnehmen, daß w/wmax von 50 % bei r/R = 0,3 auf 100 % bei r/R = 0,49 ansteigt und bei r/R = 0,66 wieder den 50 % Wert erreicht.It can be seen from the diagram that w / w max increases from 50% at r / R = 0.3 to 100% at r / R = 0.49 and again reaches the 50% value at r / R = 0.66 .

Die folgenden Beispiele erläutern die Erfindung und zeigen, daß Elektrofilter mit optimaler Abscheideleistung gemäß der Erfindung unabhängig von der speziellen Ausgestaltung der Niederschlagselektrode zu erhalten sind.The following examples explain the invention and show that electrostatic precipitators with optimal separation performance according to the invention can be obtained regardless of the special design of the precipitation electrode.

Beispiel 1:Example 1:

In einem Röhrenelektrofilter mit zylindrischen Röhren als Niederschlagselektroden, die einen inneren Durchmesser von 300 mm aufwiesen, wurden verschiedene, aus gezahnten Bändern durch Verdrehen oder durch Abbiegen der Zähne hergestellte Sprühelektroden eingesetzt, die unterschiedlich lange Zähne, von der Mittelachse der Sprühelektrode gerechnet, aufwiesen.In a tubular electrostatic precipitator with cylindrical tubes as precipitation electrodes, which had an inner diameter of 300 mm, various spray electrodes were made from toothed strips by twisting or by bending the teeth, which had teeth of different lengths, calculated from the central axis of the spray electrode.

Das Elektrofilter wurde mit einem Luftstrom beaufschlagt, der Schwefelsäurenebel mit einer mittleren Partikelgrösse von 0,5 µm enthielt. Bei gleicher Luftgeschwindigkeit und gleich angelegter Spannung wurden in Abhängigkeit von der Zahnlänge (r) folgende Prozentuale Wanderungsgeschwindigkeiten (w/wmax ) erhalten:

Figure imgb0001
An air flow was applied to the electrostatic filter strikes, which contained sulfuric acid mist with an average particle size of 0.5 microns. With the same air speed and the same applied voltage, the following percentage migration speeds (w / w max ) were obtained depending on the tooth length (r):
Figure imgb0001

Beispiel 2:Example 2:

In einem Röhrenelektrofilter der in Beispiel 1 beschriebenen Art, jedoch mit einem inneren Rohrdurchmesser von 250 mm wurde der Betrieb unter gleichen spezifischen Bedingungen gefahren wie in Beispiel 1. Die Ergebnisse stellen sich wie folgt dar:

Figure imgb0002
In a tube electrostatic precipitator of the type described in Example 1, but with an inner tube diameter of 250 mm, the operation was carried out under the same specific conditions as in Example 1. The results are as follows:
Figure imgb0002

Aus diesen Ergebnissen ist zu ersehen, daß das Verhältr nis r/R und nicht der Abstand der Zahnspitzen der Sprühelektrode von der Mittelachse oder der Abstand der Zahnspitze der Sprühelektrode von der nächstgelegenen Niederschlagselektrodenwand der bestimmende Parameter für die relative Wanderungsgeschwindigkeit ist,From these results it can be seen that the ratio r / R and not the distance of the tooth tips of the spray electrode from the central axis or the distance of the tooth tip of the spray electrode from the nearest precipitation electrode wall is the determining parameter for the relative rate of migration,

Beispiel 3:Example 3:

In einem Plattenelektrofilter mit einem Plattenabstand von 200 mm wurden die gleichen Elektroden eingesetzt wie in Beispiel 1. Entsprechend der abweichenden Definition von r (hier Abstand der Sprühspitze von der gedachten Mittelebene zwischen den beiden parallelen Plattenelektroden) ergeben sich im Vergleich zu den vorgenannten Beispielen 1 und 2 abweichende Absolutwerte für r.The same electrodes as in Example 1 were used in a plate electrostatic filter with a plate spacing of 200 mm. According to the different definition tion of r (here the distance of the spray tip from the imaginary center plane between the two parallel plate electrodes) results in deviating absolute values for r in comparison to the aforementioned examples 1 and 2.

Versuchsdurchführung entsprach der in Beispiel 1 beschriebenen Vorgehensweise. Folgende Ergebnisse wurden erzielt:

Figure imgb0003
The experimental procedure corresponded to the procedure described in Example 1. The following results were achieved:
Figure imgb0003

Die Ergebnisse zeigen die gleiche Tendenz wie die mit rohrförmigen Elektrofiltern erhaltenen Werte. Das Maximum von w/wmax ist jedoch zu geringfügig höheren Werten von r/R verschoben.

Figure imgb0004
The results show the same tendency as the values obtained with tubular electrostatic filters. However, the maximum of w / w max is shifted to slightly higher values of r / R.
Figure imgb0004

Claims (4)

1. Elektrofilter mit rohr- oder plattenförmigen Niederschlagselektroden und mittig angeordneten gezahnten Sprühelektroden, dadurch gekennzeichnet, daß das Verhältnis des Abstandes (r) der Sprühspitzen von der Mittelachse bei rohrförmigen Niederschlagselektroden oder des Abstandes (r) der Sprühspitzen von der Mittelebene zwischen plattenförmigen Niederschlagselektroden zum Abstand (R) der Mittelebene oder Mittelachse zwischen 0,35 und 0,7 liegt.1. electrostatic precipitator with tubular or plate-shaped precipitation electrodes and toothed spray electrodes arranged in the center, characterized in that the ratio of the distance (r) of the spray tips from the central axis in the case of tubular precipitation electrodes or the distance (r) of the spray tips from the center plane between plate-shaped precipitation electrodes to the distance (R) the central plane or central axis is between 0.35 and 0.7. 2. Elektrofilter nach Anspruch 1, dadurch gekennzeichnet, daß das Verhältnis r/R zwischen 0,4 und 0,65 liegt.2. Electro filter according to claim 1, characterized in that the ratio r / R is between 0.4 and 0.65. 3. Elektrofilter nach Ansprüchen 1 und 2, dadurch qekennzeichnet, daß sie gezahnte, bandförmige Sprühelektroden enthalten, die durch Verdrehen um ihre Längsachse verdrillt sind.3. Electrostatic filter according to claims 1 and 2, characterized in that they contain toothed, band-shaped spray electrodes which are twisted by twisting about their longitudinal axis. 4. Elektrofilter nach Ansprüchen 1 und 2, dadurch gekennzeichnet, daß sie gezahnte bandförmige Sprühelektroden enthalten, die durch Abbiegen der Zähne aus der Bandebene zu dreidimensionalen Körpern geformt worden sind.4. Electrofilter according to claims 1 and 2, characterized in that they contain toothed band-shaped spray electrodes which have been formed into three-dimensional bodies by bending the teeth from the band plane.
EP19850103627 1984-04-28 1985-03-27 Electrofilter Expired EP0163047B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3415984 1984-04-28
DE19843415984 DE3415984A1 (en) 1984-04-28 1984-04-28 ELECTRIC FILTER

Publications (3)

Publication Number Publication Date
EP0163047A2 true EP0163047A2 (en) 1985-12-04
EP0163047A3 EP0163047A3 (en) 1986-04-16
EP0163047B1 EP0163047B1 (en) 1989-06-14

Family

ID=6234659

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19850103627 Expired EP0163047B1 (en) 1984-04-28 1985-03-27 Electrofilter

Country Status (2)

Country Link
EP (1) EP0163047B1 (en)
DE (1) DE3415984A1 (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0255985A2 (en) * 1986-07-05 1988-02-17 Schako Metallwarenfabrik Ferdinand Schad KG Electrostatic separator for filtrating air
EP0377794A1 (en) * 1989-01-11 1990-07-18 BG Apparatebau Goslar GmbH & Co. KG Electrofilter made from plastics and/or metal, in particular lead
FR2654648A1 (en) * 1989-11-21 1991-05-24 Bertin & Cie ELECTROCYCLONE FOR GAS DUST COLLECTION.
CN103316768A (en) * 2010-12-31 2013-09-25 杰智环境科技股份有限公司 Discharge electrode tube for corona discharge
EP2707141A4 (en) * 2011-05-12 2015-03-04 Global Plasma Solutions Llc Bipolar ionization device

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102014225203A1 (en) * 2014-12-09 2016-06-09 Sms Elex Ag Electrostatic filter for cleaning gas

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1048326A (en) * 1950-10-21 1953-12-21 Raytheon Mfg Co Electronic dust collector
DE1028538B (en) * 1956-09-20 1958-04-24 Bischoff Gasreinigung Electrostatic precipitator discharge electrode and process for its manufacture
GB968065A (en) * 1962-04-21 1964-08-26 Metallgesellschaft Ag Improvements in or relating to the removal of mists and solids from gases by electrostatic precipitation
DE2018447A1 (en) * 1970-04-17 1971-11-11 Metallgesellschaft Ag Making discharge electrodes for tubular electrostatic precipitators

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1357202A (en) * 1915-09-16 1920-10-26 Int Precipitation Co Art of producing electrical precipitation of particles from fluid or gaseous streams
DE517067C (en) * 1928-06-08 1931-01-31 Metallgesellschaft Ag Device for the electrical separation of floating bodies from gases
US1992113A (en) * 1931-10-26 1935-02-19 Int Precipitation Co Electrical precipitating apparatus
US2505907A (en) * 1946-10-31 1950-05-02 Research Corp Discharge electrode
US2694464A (en) * 1951-02-09 1954-11-16 Research Corp Electrical precipitator
DE1201816B (en) * 1963-06-27 1965-09-30 Omnical Ges Fuer Kessel Und Ap Spray electrode for electrostatic dust collector
DE2134165C3 (en) * 1971-07-09 1981-06-04 Elba-Werk Maschinen-Gesellschaft Mbh & Co, 7505 Ettlingen Wet electrostatic precipitator

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1048326A (en) * 1950-10-21 1953-12-21 Raytheon Mfg Co Electronic dust collector
DE1028538B (en) * 1956-09-20 1958-04-24 Bischoff Gasreinigung Electrostatic precipitator discharge electrode and process for its manufacture
GB968065A (en) * 1962-04-21 1964-08-26 Metallgesellschaft Ag Improvements in or relating to the removal of mists and solids from gases by electrostatic precipitation
DE2018447A1 (en) * 1970-04-17 1971-11-11 Metallgesellschaft Ag Making discharge electrodes for tubular electrostatic precipitators

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0255985A2 (en) * 1986-07-05 1988-02-17 Schako Metallwarenfabrik Ferdinand Schad KG Electrostatic separator for filtrating air
EP0255985A3 (en) * 1986-07-05 1989-10-04 Schako Metallwarenfabrik Ferdinand Schad Kg Electrostatic separator for filtrating air
EP0377794A1 (en) * 1989-01-11 1990-07-18 BG Apparatebau Goslar GmbH & Co. KG Electrofilter made from plastics and/or metal, in particular lead
FR2654648A1 (en) * 1989-11-21 1991-05-24 Bertin & Cie ELECTROCYCLONE FOR GAS DUST COLLECTION.
WO1991007230A1 (en) * 1989-11-21 1991-05-30 Bertin & Cie Electrocyclone for gas cleaning
CN103316768A (en) * 2010-12-31 2013-09-25 杰智环境科技股份有限公司 Discharge electrode tube for corona discharge
EP2707141A4 (en) * 2011-05-12 2015-03-04 Global Plasma Solutions Llc Bipolar ionization device

Also Published As

Publication number Publication date
DE3415984C2 (en) 1990-08-30
EP0163047A3 (en) 1986-04-16
EP0163047B1 (en) 1989-06-14
DE3415984A1 (en) 1985-11-07

Similar Documents

Publication Publication Date Title
DE3122515C2 (en) Electrostatic filter assembly
EP0461695B1 (en) Process and apparatus for cleaning dust-laden and noxious exhaust gases
DD257590A5 (en) ARRANGEMENT FOR GENERATING AN ELECTRIC CORONA DISCHARGE IN THE AIR
EP0437849A1 (en) Emission electrode in an electrostatic dust separator
DE3500375A1 (en) DEVICE FOR REMOVING SOLID PARTICLES, ESPECIALLY CARBON PARTICLES, FROM THE EXHAUST GAS FROM COMBUSTION ENGINES
DE2810735C2 (en) Electric gas cleaning device
DE68913532T2 (en) EMISSION ELECTRODE.
EP0567930A1 (en) Droplet separator
DD242568A5 (en) METHOD AND DEVICE FOR DISCHARGING A SOLID OR LIQUID PARTICLE IN SUSPENSION CONTAINING GAS STREAM BY MEANS OF AN ELECTRIC FIELD
DD281892A5 (en) DEVICE FOR TRANSPORTING AIR
EP0163047B1 (en) Electrofilter
DE1557132A1 (en) Precipitation electrode field for electrostatic dust collectors
DE3708508A1 (en) Device and process for decreasing pollutants in combustion exhaust gases
DE2307508A1 (en) ELECTRIC FAILURE DEVICE
DE2904153A1 (en) SPRAY ELECTRODE FOR ELECTRIC FILTER
CH623240A5 (en)
DE1239277B (en) Process for the separation of mists and solids from gases by means of wet pipe dust collectors
DE2808093A1 (en) ELECTRODE HANGER
EP1097749A1 (en) Cyclone air filter with electrostatic separator
DE2542311A1 (en) Electrostatic dust precipitator - with increased precipitating field strength at positions between corona discharge points
DE2460962C3 (en) Electrostatic dust collector
DE1557110A1 (en) Device for cleaning a gas from particulate matter, in particular particulate matter, carried along in it
DE2441233C2 (en) Electrostatic dust collector
EP4000738B1 (en) Filter for cleaning a gas flow
DE850597C (en) Method for comparing the distribution and composition of the electrode precipitate from the electrical cleaning of gases

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Designated state(s): BE IT NL SE

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): BE IT NL SE

17P Request for examination filed

Effective date: 19860825

17Q First examination report despatched

Effective date: 19871126

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): BE IT NL SE

ITF It: translation for a ep patent filed

Owner name: BUGNION S.P.A.

PLBI Opposition filed

Free format text: ORIGINAL CODE: 0009260

26 Opposition filed

Opponent name: METALLGESELLSCHAFT AG

Effective date: 19900312

NLR1 Nl: opposition has been filed with the epo

Opponent name: METALLGESELLSCHAFT AG.

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: SE

Payment date: 19910130

Year of fee payment: 7

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: BE

Payment date: 19910220

Year of fee payment: 7

ITTA It: last paid annual fee
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: NL

Payment date: 19910331

Year of fee payment: 7

RDAG Patent revoked

Free format text: ORIGINAL CODE: 0009271

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: PATENT REVOKED

27W Patent revoked

Effective date: 19920103

NLR2 Nl: decision of opposition
BERE Be: lapsed

Owner name: HUGO PETERSEN G. FUR VERFAHRENSTECHN. ANLAGENBAU

Effective date: 19920331

EUG Se: european patent has lapsed

Ref document number: 85103627.7

Effective date: 19920520