SE9804334L - Ways of controlling power supply to an electrostatic dust separator - Google Patents

Ways of controlling power supply to an electrostatic dust separator

Info

Publication number
SE9804334L
SE9804334L SE9804334A SE9804334A SE9804334L SE 9804334 L SE9804334 L SE 9804334L SE 9804334 A SE9804334 A SE 9804334A SE 9804334 A SE9804334 A SE 9804334A SE 9804334 L SE9804334 L SE 9804334L
Authority
SE
Sweden
Prior art keywords
pulse
length
voltage
ways
power supply
Prior art date
Application number
SE9804334A
Other languages
Swedish (sv)
Other versions
SE9804334D0 (en
SE513268C2 (en
Inventor
Torsten Persson
Original Assignee
Flaekt Ab
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 Flaekt Ab filed Critical Flaekt Ab
Priority to SE9804334A priority Critical patent/SE513268C2/en
Publication of SE9804334D0 publication Critical patent/SE9804334D0/en
Publication of SE9804334L publication Critical patent/SE9804334L/en
Publication of SE513268C2 publication Critical patent/SE513268C2/en

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
    • B03C3/66—Applications of electricity supply techniques
    • B03C3/68—Control systems therefor

Landscapes

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

Abstract

A time interval is defined for each of the above combinations and a function of voltage is defined, calculated and integrated under this interval, then a number is obtained by dividing the integral by the pulse length or a pulse factor-dependent scale factor, and then this number is used to chose the desired combination. A method for regulating the supply of pulsed dc current to high voltage electrodes in an electrostatic separator comprises varying the current frequency, pulse height and/or pulse length in order to obtain a number of frequency-height-length combinations, and measuring the voltage between the emission and precipitation electrodes. A time interval (~t) with a length not exceeding the pulse period time (T = 1/f) is defined for each of the above combinations, where f is the frequency and is not less than the pulse length (t). A function of voltage f(U) is defined, calculated and integrated under (~t), a number is obtained by dividing the integral by (t) or a pulse factor-dependent scale factor, and this number is used to choose the desired combination.
SE9804334A 1998-12-16 1998-12-16 Regulating supply of dc current to electrostatic separator electrodes, using a time interval, voltage function and pulse length to calculate and choose the desired current parameters SE513268C2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SE9804334A SE513268C2 (en) 1998-12-16 1998-12-16 Regulating supply of dc current to electrostatic separator electrodes, using a time interval, voltage function and pulse length to calculate and choose the desired current parameters

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE9804334A SE513268C2 (en) 1998-12-16 1998-12-16 Regulating supply of dc current to electrostatic separator electrodes, using a time interval, voltage function and pulse length to calculate and choose the desired current parameters

Publications (3)

Publication Number Publication Date
SE9804334D0 SE9804334D0 (en) 1998-12-16
SE9804334L true SE9804334L (en) 2000-06-17
SE513268C2 SE513268C2 (en) 2000-08-14

Family

ID=20413666

Family Applications (1)

Application Number Title Priority Date Filing Date
SE9804334A SE513268C2 (en) 1998-12-16 1998-12-16 Regulating supply of dc current to electrostatic separator electrodes, using a time interval, voltage function and pulse length to calculate and choose the desired current parameters

Country Status (1)

Country Link
SE (1) SE513268C2 (en)

Also Published As

Publication number Publication date
SE9804334D0 (en) 1998-12-16
SE513268C2 (en) 2000-08-14

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