CA2190954A1 - Electrostatic fibrous filter - Google Patents

Electrostatic fibrous filter

Info

Publication number
CA2190954A1
CA2190954A1 CA002190954A CA2190954A CA2190954A1 CA 2190954 A1 CA2190954 A1 CA 2190954A1 CA 002190954 A CA002190954 A CA 002190954A CA 2190954 A CA2190954 A CA 2190954A CA 2190954 A1 CA2190954 A1 CA 2190954A1
Authority
CA
Canada
Prior art keywords
electrodes
electrode
filter
collection efficiency
particle collection
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
CA002190954A
Other languages
French (fr)
Other versions
CA2190954C (en
Inventor
Rex R. Coppom
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.)
Coppom Technologies
Original Assignee
Rex R. Coppom
Coppom Technologies
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 Rex R. Coppom, Coppom Technologies filed Critical Rex R. Coppom
Publication of CA2190954A1 publication Critical patent/CA2190954A1/en
Application granted granted Critical
Publication of CA2190954C publication Critical patent/CA2190954C/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • B03C3/02—Plant or installations having external electricity supply
    • B03C3/04—Plant or installations having external electricity supply dry type
    • B03C3/14—Plant or installations having external electricity supply dry type characterised by the additional use of mechanical effects, e.g. gravity
    • B03C3/155—Filtration

Abstract

The particle collection efficiency of a fibrous filter (11) is signifi-cantly increased by imposing a high voltage potential on electrodes (15, 16) placed on either side of the filter (17). This creates a strong elec-trostatic field across the filter (17) which enhances the fiber's particle collection ability. The electrostatic field strength, and particle collection efficiency, increase with the voltage employed to establish the electrostatic field. An insulated electrode (15) as the front electrode (15) in combina-tion with a conductive electrode (16) as the rear electrode (16) enables a very high electrical potential to be imposed on the electrodes (15, 16) without resulting arcing between the electrodes (15, 16). Pre-charging of dust particulates with the same polarity as the insulated electrode fur-ther increases collection efficiency without resulting in a charge buildup in front of the electrodes (15, 16) or a blocking of airflow by particles collecting on the electrodes (15, 16).
CA002190954A 1994-06-09 1995-06-08 Electrostatic fibrous filter Expired - Fee Related CA2190954C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US08/257,729 1994-06-09
US08257729 US5549735C1 (en) 1994-06-09 1994-06-09 Electrostatic fibrous filter
PCT/US1995/007250 WO1995033570A1 (en) 1994-06-09 1995-06-08 Electrostatic fibrous filter

Publications (2)

Publication Number Publication Date
CA2190954A1 true CA2190954A1 (en) 1995-12-14
CA2190954C CA2190954C (en) 2006-05-16

Family

ID=22977506

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002190954A Expired - Fee Related CA2190954C (en) 1994-06-09 1995-06-08 Electrostatic fibrous filter

Country Status (5)

Country Link
US (2) US5549735C1 (en)
JP (1) JP3711145B2 (en)
AU (1) AU2700395A (en)
CA (1) CA2190954C (en)
WO (1) WO1995033570A1 (en)

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Also Published As

Publication number Publication date
US5549735A (en) 1996-08-27
JPH10501175A (en) 1998-02-03
CA2190954C (en) 2006-05-16
WO1995033570A1 (en) 1995-12-14
US5549735C1 (en) 2001-08-14
US5593476A (en) 1997-01-14
AU2700395A (en) 1996-01-04
JP3711145B2 (en) 2005-10-26

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