EP0132660A3 - Method for the detection, during operation, of the occurrence of an optimum rapping time for the rapping of the electrodes of an electrofilter - Google Patents

Method for the detection, during operation, of the occurrence of an optimum rapping time for the rapping of the electrodes of an electrofilter Download PDF

Info

Publication number
EP0132660A3
EP0132660A3 EP84107909A EP84107909A EP0132660A3 EP 0132660 A3 EP0132660 A3 EP 0132660A3 EP 84107909 A EP84107909 A EP 84107909A EP 84107909 A EP84107909 A EP 84107909A EP 0132660 A3 EP0132660 A3 EP 0132660A3
Authority
EP
European Patent Office
Prior art keywords
rapping
electrodes
electrofilter
optimum
occurrence
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
EP84107909A
Other languages
German (de)
Other versions
EP0132660A2 (en
EP0132660B1 (en
Inventor
Horst Dr. Daar
Franz Dipl.-Ing. Alig
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 AT84107909T priority Critical patent/ATE24674T1/en
Publication of EP0132660A2 publication Critical patent/EP0132660A2/en
Publication of EP0132660A3 publication Critical patent/EP0132660A3/en
Application granted granted Critical
Publication of EP0132660B1 publication Critical patent/EP0132660B1/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
    • 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

Abstract

A method for operationally determining the existence of an optimal rapping interval for the collector electrodes of an electrostatic precipitator comprises the comparison of the current-voltage characteristics for precipitator operation under pure-gas conditions and actual use conditions. If the comparison indicates that the resistance of accumulated dust layers is greater than the resistance of air, then an optimal rapping interval exists. This interval may be calculated analytically or approximated by means of an iterative process.
EP84107909A 1983-07-20 1984-07-06 Method for the detection, during operation, of the occurrence of an optimum rapping time for the rapping of the electrodes of an electrofilter Expired EP0132660B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT84107909T ATE24674T1 (en) 1983-07-20 1984-07-06 PROCEDURE FOR OPERATIONAL DETERMINATION OF THE PRESENCE OF A KNOCK CYCLE OPTIMUM FOR THE ELECTRODE KNOCK OF AN ELECTRIC FILTER.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3326040 1983-07-20
DE19833326040 DE3326040A1 (en) 1983-07-20 1983-07-20 METHOD FOR OPERATINGLY DETERMINING THE PRESENCE OF A KNOCKING CLOCK OPTIMUM FOR THE ELECTRODE KNOCKING OF AN ELECTROFILTER

Publications (3)

Publication Number Publication Date
EP0132660A2 EP0132660A2 (en) 1985-02-13
EP0132660A3 true EP0132660A3 (en) 1985-03-13
EP0132660B1 EP0132660B1 (en) 1987-01-07

Family

ID=6204373

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84107909A Expired EP0132660B1 (en) 1983-07-20 1984-07-06 Method for the detection, during operation, of the occurrence of an optimum rapping time for the rapping of the electrodes of an electrofilter

Country Status (8)

Country Link
US (1) US4521223A (en)
EP (1) EP0132660B1 (en)
JP (1) JPS6041558A (en)
AT (1) ATE24674T1 (en)
AU (1) AU572867B2 (en)
CA (1) CA1230640A (en)
DE (2) DE3326040A1 (en)
ZA (1) ZA845578B (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE506423C2 (en) * 1996-05-09 1997-12-15 Flaekt Ab Method for controlling the length of the stroke intervals and other stroke parameters at an electrostatic dust separator
EP2338603A1 (en) * 2007-03-05 2011-06-29 Alstom Technology Ltd A method and a control system for controlling the operation of a last field of an electrostatic precipitator
EP1967277B1 (en) * 2007-03-05 2018-09-26 General Electric Technology GmbH A method of controlling the order of rapping the collecting electrode plates of an ESP
EP1967276B1 (en) * 2007-03-05 2019-05-08 General Electric Technology GmbH A method of estimating the dust load of an esp, and a method and a device of controlling the rapping of an esp
CN110665642A (en) * 2019-10-28 2020-01-10 华北电力科学研究院有限责任公司 Electric dust collector vibration control method and device

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1091398A (en) * 1965-04-20 1967-11-15 Koppers Co Inc Improvements in or relating to method and apparatus for an electrostatic precipitator
US3469371A (en) * 1967-05-02 1969-09-30 Buell Eng Co Apparatus for controlling the removal of particle accumulations from the electrodes of an electric precipitator
US3606733A (en) * 1969-07-17 1971-09-21 American Standard Inc Cleaning control for electrostatic precipitator
DE2436043A1 (en) * 1974-07-26 1976-02-05 Saarbergwerke Ag Electro filter unit with deposition electrodes - has striker devices to knock deposited dust from the electrodes and has associated collector funnels
EP0032689A1 (en) * 1980-01-17 1981-07-29 Metallgesellschaft Ag Process for optimizing the rapping frequency of an electrofilter plant

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3147094A (en) * 1956-12-03 1964-09-01 Cottrell Res Inc Control system for electrical precipitators

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1091398A (en) * 1965-04-20 1967-11-15 Koppers Co Inc Improvements in or relating to method and apparatus for an electrostatic precipitator
US3469371A (en) * 1967-05-02 1969-09-30 Buell Eng Co Apparatus for controlling the removal of particle accumulations from the electrodes of an electric precipitator
US3606733A (en) * 1969-07-17 1971-09-21 American Standard Inc Cleaning control for electrostatic precipitator
DE2436043A1 (en) * 1974-07-26 1976-02-05 Saarbergwerke Ag Electro filter unit with deposition electrodes - has striker devices to knock deposited dust from the electrodes and has associated collector funnels
EP0032689A1 (en) * 1980-01-17 1981-07-29 Metallgesellschaft Ag Process for optimizing the rapping frequency of an electrofilter plant

Also Published As

Publication number Publication date
AU572867B2 (en) 1988-05-19
CA1230640A (en) 1987-12-22
EP0132660A2 (en) 1985-02-13
DE3461893D1 (en) 1987-02-12
DE3326040A1 (en) 1985-01-31
ZA845578B (en) 1985-02-27
ATE24674T1 (en) 1987-01-15
JPS6041558A (en) 1985-03-05
US4521223A (en) 1985-06-04
AU3086784A (en) 1985-01-24
EP0132660B1 (en) 1987-01-07

Similar Documents

Publication Publication Date Title
DE3165590D1 (en) Method of controlling operation of an electrostatic precipitator
SE7406925L (en)
GB2149239B (en) High voltage generator for an electrostatic dust precipitator
US7452403B2 (en) System and method for applying partial discharge analysis for electrostatic precipitator
EP0034075A3 (en) Static power supply process and device of an electrofilter for electrostatic dust precipitation
DE3461893D1 (en) Method for the detection, during operation, of the occurrence of an optimum rapping time for the rapping of the electrodes of an electrofilter
JPS56129183A (en) Cleaning method for scanning surface of electrostatic recorder
ZA773710B (en) Rapping assembly and electrode supports for electrostatic precipitators
AU550065B2 (en) Method and apparatus for electrostatic dust precipitation
ATA411083A (en) DEVICE FOR SEPARATING FUME, FAT AND DUST PARTICLES FROM AN AIRFLOW
DE3665820D1 (en) Control method for an electrostatic filter
ZA821582B (en) Method of optimizing the collection efficiency of an electrostatic precipitator
GB1348614A (en) Electrostatic precipitators
JPS5712842A (en) Electric dust collector
JPS5431677A (en) Method of and apparatus for electrically collecting dust
US2708007A (en) Electrode positioning grids
ES295720Y (en) PRECIPITATION ELECTRODE FOR AN ELECTROSTATIC DUST SEPARATOR.
JPS57102248A (en) Method and device for electric dust precipitation
SU1593702A1 (en) Apparatus for collecting high-ohmic dust
SU571304A1 (en) Corona elec.rode of electric filter for purifying gas flow from dust
JPS57194059A (en) Moving electrode type electostatic precipitator
RU1806027C (en) Method for surface cleaning
JPS56124459A (en) Electric dust collector
Rapa Surface Migrating Particulate Contamination in Clean Rooms
JPS57187049A (en) Electrostatic precipitator

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

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Designated state(s): AT CH DE FR GB IT LI SE

AK Designated contracting states

Designated state(s): AT CH DE FR GB IT LI SE

17P Request for examination filed

Effective date: 19850304

17Q First examination report despatched

Effective date: 19860324

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT CH DE FR GB IT LI SE

REF Corresponds to:

Ref document number: 24674

Country of ref document: AT

Date of ref document: 19870115

Kind code of ref document: T

REF Corresponds to:

Ref document number: 3461893

Country of ref document: DE

Date of ref document: 19870212

ET Fr: translation filed
ITF It: translation for a ep patent filed

Owner name: STUDIO JAUMANN

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

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

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 19900614

Year of fee payment: 7

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

Ref country code: AT

Payment date: 19900704

Year of fee payment: 7

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

Ref country code: FR

Payment date: 19900724

Year of fee payment: 7

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

Ref country code: SE

Payment date: 19900727

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: DE

Payment date: 19900919

Year of fee payment: 7

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

Ref country code: CH

Payment date: 19901024

Year of fee payment: 7

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Effective date: 19910706

Ref country code: AT

Effective date: 19910706

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Effective date: 19910707

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Effective date: 19910731

Ref country code: CH

Effective date: 19910731

GBPC Gb: european patent ceased through non-payment of renewal fee
PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Effective date: 19920331

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Effective date: 19920401

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

EUG Se: european patent has lapsed

Ref document number: 84107909.8

Effective date: 19920210