EP0342731A1 - Electrode d'émission pour séparateur électrostatique de poussière - Google Patents

Electrode d'émission pour séparateur électrostatique de poussière Download PDF

Info

Publication number: EP0342731A1
Authority: EP; European Patent Office
Prior art keywords: spray; electrodes; electrode; section; semicircular
Prior art date: 1988-05-17
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

EP89201128A

Other languages

German (de)

English (en)

Other versions

EP0342731B1 (fr

Inventor

Rainer Reuffurth

Hermann Koy

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.)

1988-05-17

Filing date

1989-05-02

Publication date

1989-11-23

1989-05-02 Application filed by Metallgesellschaft AG filed Critical Metallgesellschaft AG

1989-05-02 Priority to AT89201128T priority Critical patent/ATE83688T1/de

1989-11-23 Publication of EP0342731A1 publication Critical patent/EP0342731A1/fr

1992-12-23 Application granted granted Critical

1992-12-23 Publication of EP0342731B1 publication Critical patent/EP0342731B1/fr

2009-05-02 Anticipated expiration legal-status Critical

Status Expired - Lifetime legal-status Critical Current

Links

239000000428 dust Substances 0.000 title claims description 5
239000007921 spray Substances 0.000 claims description 48
238000001556 precipitation Methods 0.000 claims description 5
238000003466 welding Methods 0.000 abstract description 13
239000000463 material Substances 0.000 description 6
238000004140 cleaning Methods 0.000 description 1
238000005260 corrosion Methods 0.000 description 1
230000007797 corrosion Effects 0.000 description 1
238000012423 maintenance Methods 0.000 description 1
239000002184 metal Substances 0.000 description 1
238000000034 method Methods 0.000 description 1
238000000926 separation method Methods 0.000 description 1
230000007704 transition Effects 0.000 description 1

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
- B03C3/86—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
- 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

Definitions

the invention relates to a spray electrode, consisting of an elongated band-shaped or wire-shaped body with protruding spray tips, for use in electrostatic dust separators in which vertical precipitation electrode walls forming gas passages alternatingly with respect to the gas flow direction and clamping frames composed of pipes are arranged, and in which a plurality of spray electrodes are inserted with their upper and lower ends in bores of the horizontal tubes of the stenter and welded to them.
spray electrodes have become known in which the spray tips consist of separate parts, for example tapered wire sections, which are connected in a voltage-conducting manner to the elongated band-shaped or wire-shaped spray electrode body.
a weak point that is observed again and again is the weld connection between the actual spray electrode and the weld ends. If spray electrodes break under the combined stress of clamping forces, vibrations for cleaning, temperature, electrical voltage and corrosion, then it is in this transition area, which must also have no significant electrical contact resistance.
Adhering to this is not readily possible if both an upward and a downward spray electrode are to be attached in the same place in a horizontal tube.
the latter variant has proven to be very susceptible to breakage.
the ends of the spray electrodes are semicircular in cross section.
the elongate body of the spray electrode has a semicircular cross section throughout.
the latter can also be designed continuously with a semicircular cross section and provided with spray tips. Compared to common, band-shaped spray electrode dimensions, this means a slightly higher material expenditure, which is more than compensated for by the expected longer service life.
the spray electrodes consist of an elongated band-shaped body (1) on which spray tips (2) are fastened by means of welding spots (3).
the spray electrodes have ends Welding ends (4) in the form of sections made of round material, to which the spray electrode ends (5) are adapted and to which they are attached by means of a welding spot (6).
the spray electrodes are fixed in the clamping frame (7) by means of a weld seam (8).
several spray electrode sections arranged one above the other should lie in the same “electrical center” so that the best separation performance can be achieved. This can - as shown - only be realized if the weld ends are in the same hole in the stenter. However, they can only be inserted up to about the center of the pipe and only welded to the stenter at one point. This type of connection between the spray electrode and the clamping frame has proven to be very susceptible to failure.
the welding ends (4) are therefore semicircular in cross section as shown in FIG. 2, in which the reference numerals have the same meaning as in FIG circular welding ends according to the prior art, then you have to provide a 40% larger bore diameter in the stenter, which is possible without difficulty.
the inventive design of the welding ends with a semicircular cross section allows a stable two-point attachment in the tubes of the stenter without the spray tips lying appreciably outside the electrical center.
FIG. 3 A further development of the inventive concept is shown in FIG. 3.
the body (9) of the spray electrode is made entirely of material with a semicircular cross section. All other designations have the same meaning as in FIGS. 1 and 2.
this embodiment requires a somewhat greater amount of material than the strip-shaped spray electrode body, it is somewhat more stable and the welding spots (6) can be omitted.
the spray electrode tips are even better arranged in the electrical center.

Landscapes

Electrostatic Separation (AREA)
Media Introduction/Drainage Providing Device (AREA)

EP89201128A 1988-05-17 1989-05-02 Electrode d'émission pour séparateur électrostatique de poussière Expired - Lifetime EP0342731B1 (fr)

Priority Applications (1)

Application Number	Priority Date	Filing Date	Title
AT89201128T ATE83688T1 (de)	1988-05-17	1989-05-02	Spruehelektrode fuer elektrostatische staubabscheider.

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
DE3816717A DE3816717A1 (de)	1988-05-17	1988-05-17	Spruehelektrode fuer elektrostatische staubabscheider
DE3816717		1988-05-17

Publications (2)

Publication Number	Publication Date
EP0342731A1 true EP0342731A1 (fr)	1989-11-23
EP0342731B1 EP0342731B1 (fr)	1992-12-23

Family

ID=6354511

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
EP89201128A Expired - Lifetime EP0342731B1 (fr)	1988-05-17	1989-05-02	Electrode d'émission pour séparateur électrostatique de poussière

Country Status (9)

Country	Link
US (1)	US4948399A (fr)
EP (1)	EP0342731B1 (fr)
JP (1)	JPH0217955A (fr)
AT (1)	ATE83688T1 (fr)
AU (1)	AU610802B2 (fr)
CA (1)	CA1330104C (fr)
DE (2)	DE3816717A1 (fr)
ES (1)	ES2037391T3 (fr)
ZA (1)	ZA893687B (fr)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
WO2003035263A1 (fr) *	2001-10-23	2003-05-01	Geecom (Pty) Limited	Electrode de decharge
WO2004108294A1 (fr) *	2003-06-05	2004-12-16	Daikin Industries, Ltd.	Appareil de decharge et appareil de purification d'air
WO2006086886A1 (fr) *	2005-02-18	2006-08-24	Turbosonic Inc.	Conception d'electrodes en pylone
US7399340B2 (en) *	2005-06-08	2008-07-15	Hamon Research—Cottrell, Inc.	Replacement discharge electrode for electrostatic precipitators and method of assembly
US7438743B2 (en) *	2006-02-23	2008-10-21	Hamon Research -Cottrell, Inc.	Method of making replacement collecting electrodes for an electrostatic precipitator
US7468094B2 (en) *	2006-02-23	2008-12-23	Hamon Research—Cottrell Inc.	Method of repairing an electrostatic precipitator
PL2471602T3 (pl) *	2010-12-29	2014-05-30	General Electric Technology Gmbh	Urządzenie ekranujące elektrycznie dla struktur w pobliżu wysokonapięciowych części odpylaczy elektrostatycznych
BR112013024727B1 (pt)	2011-03-28	2021-01-19	Megtec Turbosonic Inc.	eletrodo de coleta para um precipitador eletrostático úmido
US11027289B2 (en)	2011-12-09	2021-06-08	Durr Systems Inc.	Wet electrostatic precipitator system components
CN103990545B (zh) *	2014-05-31	2017-04-12	安徽恒意环保科技股份有限公司	极线可膨胀固定装置

Citations (5)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE299476C (fr) *
DE1557111A1 (de) *	1967-07-31	1970-03-12	Kloeckner Humboldt Deutz Ag	Spruehdrahtbefestigung
DE2603514A1 (de) *	1976-01-30	1977-08-04	Metallgesellschaft Ag	Verfahren und vorrichtung zum spannen von spruehelektroden
EP0014273A1 (fr) *	1979-02-06	1980-08-20	Metallgesellschaft Ag	Electrofiltre à champs multiples
DE3138601A1 (de) *	1981-08-01	1983-04-14	Metallgesellschaft Ag, 6000 Frankfurt	Verfahren zur befetigung von bandfoermigen spruehelektroden

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US925293A (en) *	1906-11-30	1909-06-15	Allis Chalmers	Cable-connector.
US1391364A (en) *	1920-09-20	1921-09-20	Carl V Bulow	Joint
DE2546305C3 (de) *	1975-10-16	1981-04-16	Metallgesellschaft Ag, 6000 Frankfurt	Spannvorrichtung für Sprühelektroden
DE3130548A1 (de) *	1981-08-01	1983-02-17	Metallgesellschaft Ag, 6000 Frankfurt	Verfahren zur befestigung von bandfoermigen spruehelektroden
DE3712726A1 (de) *	1987-04-15	1988-11-10	Metallgesellschaft Ag	Spruehelektrode

1988
- 1988-05-17 DE DE3816717A patent/DE3816717A1/de not_active Withdrawn
1989
- 1989-05-02 ES ES198989201128T patent/ES2037391T3/es not_active Expired - Lifetime
- 1989-05-02 EP EP89201128A patent/EP0342731B1/fr not_active Expired - Lifetime
- 1989-05-02 AT AT89201128T patent/ATE83688T1/de active
- 1989-05-02 DE DE8989201128T patent/DE58903079D1/de not_active Expired - Lifetime
- 1989-05-08 CA CA000598982A patent/CA1330104C/fr not_active Expired - Fee Related
- 1989-05-12 US US07/351,622 patent/US4948399A/en not_active Expired - Fee Related
- 1989-05-16 AU AU34783/89A patent/AU610802B2/en not_active Ceased
- 1989-05-17 JP JP1124100A patent/JPH0217955A/ja active Pending
- 1989-05-17 ZA ZA893687A patent/ZA893687B/xx unknown

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE299476C (fr) *
DE1557111A1 (de) *	1967-07-31	1970-03-12	Kloeckner Humboldt Deutz Ag	Spruehdrahtbefestigung
DE2603514A1 (de) *	1976-01-30	1977-08-04	Metallgesellschaft Ag	Verfahren und vorrichtung zum spannen von spruehelektroden
EP0014273A1 (fr) *	1979-02-06	1980-08-20	Metallgesellschaft Ag	Electrofiltre à champs multiples
DE3138601A1 (de) *	1981-08-01	1983-04-14	Metallgesellschaft Ag, 6000 Frankfurt	Verfahren zur befetigung von bandfoermigen spruehelektroden

Also Published As

Publication number	Publication date
JPH0217955A (ja)	1990-01-22
ATE83688T1 (de)	1993-01-15
US4948399A (en)	1990-08-14
DE58903079D1 (de)	1993-02-04
ZA893687B (en)	1991-01-30
CA1330104C (fr)	1994-06-07
AU3478389A (en)	1989-11-23
ES2037391T3 (es)	1993-06-16
AU610802B2 (en)	1991-05-23
EP0342731B1 (fr)	1992-12-23
DE3816717A1 (de)	1989-11-30

Legal Events

Date	Code	Title	Description
1989-10-07	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
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1990-02-21	17P	Request for examination filed	Effective date: 19891221
1991-04-17	17Q	First examination report despatched	Effective date: 19910301
1992-11-06	GRAA	(expected) grant	Free format text: ORIGINAL CODE: 0009210
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1993-10-28	STAA	Information on the status of an ep patent application or granted ep patent	Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT
1993-12-15	26N	No opposition filed
1994-03-15	PGFP	Annual fee paid to national office [announced via postgrant information from national office to epo]	Ref country code: AT Payment date: 19940315 Year of fee payment: 6
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1996-01-03	GBPC	Gb: european patent ceased through non-payment of renewal fee	Effective date: 19950502
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Publication	Publication Date	Title
EP0617640A1 (fr)	1994-10-05	Separateur electrique muni d'electrodes collectrices alveolees.
EP0342731B1 (fr)	1992-12-23	Electrode d'émission pour séparateur électrostatique de poussière
DE2711858C2 (de)	1984-12-13	Elektroabscheider mit Niederschlagselektroden
DE1903641C3 (de)	1978-11-23	Zellenverbindung für einen Akkumulator
DE1765089B1 (de)	1971-07-29	Anschlussoese zum einsetzen in bohrungen von schaltungs platten
DE1929224A1 (de)	1970-01-22	Spruehelektrode fuer elektrostatische Staubabscheider
DE4240337C1 (de)	1993-12-09	Elektrochemischer Speicher und Verfahren zu dessen Herstellung
DE3539200A1 (de)	1986-05-07	Starre entladungselektrode
DE3339710C2 (de)	1985-10-24	Weichenschwelle aus Spannbeton
DE2034628A1 (de)	1972-02-03	Sprühelektroden- und Distanzierungssystern
DE4117973C2 (fr)	1993-03-25
DE2610348C3 (de)	1984-05-30	Lichtbogenschutzarmatur für Isolatoren von Hochspannungsfreileitungen
DE19626347C2 (de)	2000-03-09	Oberleitung
DE3130548A1 (de)	1983-02-17	Verfahren zur befestigung von bandfoermigen spruehelektroden
DE2613152C3 (de)	1980-06-26	Betonmast für Hochspannungsleitungen
EP2683003B1 (fr)	2017-12-20	Accumulateur, notamment batterie au plomb
AT159068B (de)	1940-07-10	Entladungsröhre, deren Vakuumgefäß ganz oder größtenteils aus Metall besteht.
DE3415754C2 (fr)	1990-02-08
DE3033248B1 (de)	1981-04-02	Verzugmatte fuer den Grubenausbau
CA1225042A (fr)	1987-08-04	Electrodes de decharge d'electro-precipitateur du type a mat
DE2447639C3 (de)	1978-08-24	Zellenverbindung eines Bleiakkumulators
DE2725286A1 (de)	1977-12-29	Befestigungsvorrichtung fuer die filterelektroden einer elektrostatischen entstaubungsanlage
AT234859B (de)	1964-07-27	Plattenförmige, Gasgassen bildende Niederschlagselektrode für Elektrofilter
DE3138601A1 (de)	1983-04-14	Verfahren zur befetigung von bandfoermigen spruehelektroden
DE2730090C3 (de)	1981-02-26	Gelenkiger Zugpfahlanschluß