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WO2002034403A1 - Brosse autogene - Google Patents

Brosse autogene Download PDF

Info

Publication number
WO2002034403A1
WO2002034403A1 PCT/US2000/041585 US0041585W WO0234403A1 WO 2002034403 A1 WO2002034403 A1 WO 2002034403A1 US 0041585 W US0041585 W US 0041585W WO 0234403 A1 WO0234403 A1 WO 0234403A1
Authority
WO
WIPO (PCT)
Prior art keywords
roll
sand
brush
scouring
separator
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.)
Ceased
Application number
PCT/US2000/041585
Other languages
English (en)
Inventor
John Vilinskis
Brian W. Packer
Michael J. Mankosa
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.)
Eriez Manufacturing Co
Original Assignee
Eriez Manufacturing Co
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 Eriez Manufacturing Co filed Critical Eriez Manufacturing Co
Priority to PCT/US2000/041585 priority Critical patent/WO2002034403A1/fr
Priority to AU2001237903A priority patent/AU2001237903A1/en
Publication of WO2002034403A1 publication Critical patent/WO2002034403A1/fr
Anticipated expiration legal-status Critical
Ceased 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
    • B03C7/00—Separating solids from solids by electrostatic effect
    • B03C7/02—Separators
    • B03C7/06—Separators with cylindrical material carriers

Definitions

  • This invention relates to the use of a mechanical brushing system utilized intermittently and a tray containing a bed of non-conductive sand particles to continuously clean a roll surface in an electrostatic or other separator.
  • the devices use the material being processed as an abrasive agent to remove hardened coating on the separator surface .
  • Electrostatic separators were first used near the turn of the century for separation of gold and sulfides from non-conductive siliceous gangue .
  • One of the earliest recorded inventions was a device for concentrating gold ore that was patented by Thomas A. Ediso in 1892.
  • the interest quickly dissipated/ however, with the advent of froth flotation. Renewed interest developed in the 1940 ' s due to a titanium shortage as a result of World War II.
  • Titanium naturally exists as ilmenite or rutile and most often occurs as alluvial or beach sand deposits in association with other heavy minerals such as zircon and various alumino-silicates .
  • the primary contaminant is silica sand.
  • Many of these heavy minerals have similar density, magnetic and surface chemical characteristics.
  • Rutile and ilmenite are conductive minerals. Therefore, the increased demand for these materials led to a new era of electrostatic separator development that provided improvements in separator design and high voltage power supplies.
  • electrostatic separation is applied almost exclusively for the recovery of beach/mineral sands containing titanium.
  • Other mineral applications have included cassiterite and iron ore. Applications outside of mineral processing include recycling of chopped wire and cable and processing of food products such as grains and cereals .
  • Electrostatic separation is the selective sorting of conductive from non-conductive solid species by means of forces acting on charged or polarized bodies in an electric field.
  • the "high-tension" separator uses the mechanism of ion bombardment in an electrostatic field that is produced by a fine wire positioned parallel to a grounded rotor. Ion bombardment is the result of a corona discharge produced whenever the wire is raised to an electrical potential such that the electric field in the immediate vicinity exceeds the electrical breakdown strength of the ambient air.
  • a typical electrostatic separator consists of a feed hopper, rotor/drum, ionizing electrode, product discharge splitters and a brush for removing non-conductive material.
  • the feed hopper discharges a consistent layer of particles onto the surface of the grounded, rotating drum. Particle charging is achieved as the solids pass through the intense corona discharge produced by the electrode . Conductive particles quickly share their charge with the grounded rotor and discharge from the drum in a trajectory determined by centrifugal force and gravity.

Landscapes

  • Electrostatic Separation (AREA)

Abstract

L'invention concerne un dispositif mécanique (5) destiné au nettoyage de la surface d'un séparateur électrostatique à tambour (8), n'utilisant pas un système de brossage classique à fibres. La nouveauté de ce dispositif réside dans la nature autogène du mécanisme. Cette approche constitue une amélioration pour le nettoyage de surface, permettant d'obtenir des résultats supérieurs à ceux obtenus à l'aide des techniques actuelles. En améliorant l'état de la surface, on peut faire fonctionner le séparateur (8) de façon continue avec un rendement optimal. Par ailleurs, ce dispositif permet également de réduire sensiblement le temps de maintenance associé aux pratiques actuelles. Cette invention décrit plusieurs caractéristiques distinctes du dispositif, y compris l'approche novatrice consistant à utiliser les matériaux de traitement pour nettoyer la surface du séparateur (8).
PCT/US2000/041585 2000-10-26 2000-10-26 Brosse autogene Ceased WO2002034403A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
PCT/US2000/041585 WO2002034403A1 (fr) 2000-10-26 2000-10-26 Brosse autogene
AU2001237903A AU2001237903A1 (en) 2000-10-26 2000-10-26 Autogenous brush

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/US2000/041585 WO2002034403A1 (fr) 2000-10-26 2000-10-26 Brosse autogene

Publications (1)

Publication Number Publication Date
WO2002034403A1 true WO2002034403A1 (fr) 2002-05-02

Family

ID=21742168

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2000/041585 Ceased WO2002034403A1 (fr) 2000-10-26 2000-10-26 Brosse autogene

Country Status (2)

Country Link
AU (1) AU2001237903A1 (fr)
WO (1) WO2002034403A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110561253A (zh) * 2019-09-27 2019-12-13 昆山惠诚鑫自动化科技有限公司 一种用于钢丝表面处理的钢刷机

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2696301A (en) * 1949-12-02 1954-12-07 Eriez Mfg Company Magnetic separating device
US4326951A (en) * 1980-03-17 1982-04-27 Broz Frank J Electrostatic mineral concentrator
SU1553179A1 (ru) * 1988-05-20 1990-03-30 Криворожский горнорудный институт Магнитный сепаратор
SU1592046A1 (ru) * 1988-10-24 1990-09-15 Mo Energeticheskij Institut Ко р он н о-э л е ктростатич е ский сепаратор
US6072140A (en) * 1998-02-10 2000-06-06 Miller; Charles O. Method and apparatus for electrically charging and separating particles

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2696301A (en) * 1949-12-02 1954-12-07 Eriez Mfg Company Magnetic separating device
US4326951A (en) * 1980-03-17 1982-04-27 Broz Frank J Electrostatic mineral concentrator
SU1553179A1 (ru) * 1988-05-20 1990-03-30 Криворожский горнорудный институт Магнитный сепаратор
SU1592046A1 (ru) * 1988-10-24 1990-09-15 Mo Energeticheskij Institut Ко р он н о-э л е ктростатич е ский сепаратор
US6072140A (en) * 1998-02-10 2000-06-06 Miller; Charles O. Method and apparatus for electrically charging and separating particles

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110561253A (zh) * 2019-09-27 2019-12-13 昆山惠诚鑫自动化科技有限公司 一种用于钢丝表面处理的钢刷机
CN110561253B (zh) * 2019-09-27 2024-04-02 昆山惠诚鑫自动化科技有限公司 一种用于钢丝表面处理的钢刷机

Also Published As

Publication number Publication date
AU2001237903A1 (en) 2002-05-06

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