GB903163A - Improvements in or relating to electrostatic precipitators - Google Patents

Improvements in or relating to electrostatic precipitators

Info

Publication number
GB903163A
GB903163A GB804061A GB804061A GB903163A GB 903163 A GB903163 A GB 903163A GB 804061 A GB804061 A GB 804061A GB 804061 A GB804061 A GB 804061A GB 903163 A GB903163 A GB 903163A
Authority
GB
United Kingdom
Prior art keywords
photo
fed
electric cell
rappers
auto
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
GB804061A
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.)
Research Cottrell Inc
Original Assignee
Research Cottrell Inc
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 Research Cottrell Inc filed Critical Research Cottrell Inc
Publication of GB903163A publication Critical patent/GB903163A/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

Landscapes

  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Mechanical Engineering (AREA)
  • Electrostatic Separation (AREA)

Abstract

903,163. Photo-electric control of electrostatic precipitators. RESEARCH-COTTRELL Inc. March 6, 1961 [March 15, 1960], No. 8040/61. Class 40 (3). [Also in Group XL (a)] In an electrostatic precipitator, the dust density at the dirty gas inlet 12 is sensed by a photo-electric cell 48, and the signal therefrom is used to control the intensity or frequency of operation of electromagnetically-operated rappers 24, 26 associated one with each of a pair of electrode assemblies 16, 18. As shown, the photo-electric cell signal is fed into a differential amplifier 50 which is fed also with a reference signal from a source 54, and the amplifier output controls a reversible motor 58 which adjusts the movable contact 40 of an auto-transformer feeding the power unit 28 which energizes the rappers 24, 26. In an alternative arrangement, a further photo-electric cell may be sited at the gas outlet 14 and the signals from the two cells integrated before being fed to the differential amplifier. In further arrangements, the auto-transformer may be located in a rapping timing circuit so that the rapping cycle may be controlled.
GB804061A 1960-03-15 1961-03-06 Improvements in or relating to electrostatic precipitators Expired GB903163A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US1522060A 1960-03-15 1960-03-15

Publications (1)

Publication Number Publication Date
GB903163A true GB903163A (en) 1962-08-15

Family

ID=21770162

Family Applications (1)

Application Number Title Priority Date Filing Date
GB804061A Expired GB903163A (en) 1960-03-15 1961-03-06 Improvements in or relating to electrostatic precipitators

Country Status (1)

Country Link
GB (1) GB903163A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0032689A1 (en) * 1980-01-17 1981-07-29 Metallgesellschaft Ag Process for optimizing the rapping frequency of an electrofilter plant
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

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0032689A1 (en) * 1980-01-17 1981-07-29 Metallgesellschaft Ag Process for optimizing the rapping frequency of an electrofilter plant
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

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