FR2258904A1 - Submicronic dust sepn from powder - esp. from alumina powder, using a fluidised bed with extra air jets - Google Patents

Submicronic dust sepn from powder - esp. from alumina powder, using a fluidised bed with extra air jets

Info

Publication number
FR2258904A1
FR2258904A1 FR7403077A FR7403077A FR2258904A1 FR 2258904 A1 FR2258904 A1 FR 2258904A1 FR 7403077 A FR7403077 A FR 7403077A FR 7403077 A FR7403077 A FR 7403077A FR 2258904 A1 FR2258904 A1 FR 2258904A1
Authority
FR
France
Prior art keywords
powder
dust
fine dust
submicronic
sepn
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
FR7403077A
Other languages
French (fr)
Other versions
FR2258904B1 (en
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.)
Air Industrie SA
Original Assignee
Air Industrie SA
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 Air Industrie SA filed Critical Air Industrie SA
Priority to FR7403077A priority Critical patent/FR2258904A1/en
Publication of FR2258904A1 publication Critical patent/FR2258904A1/en
Application granted granted Critical
Publication of FR2258904B1 publication Critical patent/FR2258904B1/fr
Granted legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
    • B07B4/00—Separating solids from solids by subjecting their mixture to gas currents
    • B07B4/08—Separating solids from solids by subjecting their mixture to gas currents while the mixtures are supported by sieves, screens, or like mechanical elements
    • 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
    • B03B—SEPARATING SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS
    • B03B4/00—Separating by pneumatic tables or by pneumatic jigs
    • B03B4/005—Separating by pneumatic tables or by pneumatic jigs the currents being pulsating, e.g. pneumatic jigs; combination of continuous and pulsating currents
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
    • B07B7/00—Selective separation of solid materials carried by, or dispersed in, gas currents
    • B07B7/04—Selective separation of solid materials carried by, or dispersed in, gas currents by impingement against baffle separators
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
    • B07B7/00—Selective separation of solid materials carried by, or dispersed in, gas currents
    • B07B7/12—Selective separation of solid materials carried by, or dispersed in, gas currents with pulsating air currents

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Filtering Of Dispersed Particles In Gases (AREA)

Abstract

Purifying powder particles from impurities consisting of a fine dust having dimensions notably smaller than and adhering to the particles, comprises passing the powder through a tank contg. a fluidised bed, the ascending current of gas removing the fine dust. A complementary dynamic action is provided by further currents of gas to remove the dust adhering more tenaciously to the powder and the currents of gas are then combined to carry the fine dust to a gas outlet which can include a filter if required. The pref. devices consist of various types of fluidised beds which may also be vibrated and the pref. application is the removal of fine dust from a powder used in the industrial mfr. of Al. Used e.g. for sepn. of submicronic dust consisting of carbon, oxides of Fe, Ni, cpds. of Na, contaminating alumina powder used for mfg. Al, the alumina having a size between a few microns and several tens of microns.
FR7403077A 1974-01-30 1974-01-30 Submicronic dust sepn from powder - esp. from alumina powder, using a fluidised bed with extra air jets Granted FR2258904A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7403077A FR2258904A1 (en) 1974-01-30 1974-01-30 Submicronic dust sepn from powder - esp. from alumina powder, using a fluidised bed with extra air jets

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7403077A FR2258904A1 (en) 1974-01-30 1974-01-30 Submicronic dust sepn from powder - esp. from alumina powder, using a fluidised bed with extra air jets

Publications (2)

Publication Number Publication Date
FR2258904A1 true FR2258904A1 (en) 1975-08-22
FR2258904B1 FR2258904B1 (en) 1978-06-16

Family

ID=9134220

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7403077A Granted FR2258904A1 (en) 1974-01-30 1974-01-30 Submicronic dust sepn from powder - esp. from alumina powder, using a fluidised bed with extra air jets

Country Status (1)

Country Link
FR (1) FR2258904A1 (en)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2846499A1 (en) * 1977-10-25 1979-04-26 Air Ind METHOD FOR REMOVING DUST PARTICLES THEREOF WITH LEADING PARTICLES
FR2467024A2 (en) * 1979-10-10 1981-04-17 Air Ind METHOD AND INSTALLATION FOR DEFLOWING PARTICLES
DE3223073A1 (en) * 1982-06-21 1984-03-08 M&S Industriebedarf GmbH, 5511 Ayl Pneumatic dust removal and conveying equipment
US4946044A (en) * 1988-05-18 1990-08-07 Kennedy Van Saup Corporation Aeration separator
US5087351A (en) * 1990-08-02 1992-02-11 Golden Peanut Company, A Georgia General Partnership Fluidized bed peanut sorter
EP0513445A1 (en) * 1991-05-14 1992-11-19 Bbs Consulting Method and plant for cleaning contaminated materials
WO1996020131A1 (en) * 1994-12-24 1996-07-04 ABB Fläkt AB Powder cleaning process and device
US5975309A (en) * 1996-04-18 1999-11-02 Kawasaki Jukogyo Kabushiki Kaisha Fluidized-bed classifier
DE10054418A1 (en) * 2000-11-03 2002-05-16 Iss Engineering Air sifting granulates to clear impurities blows live air up through first hollow plate for first heavy impurities cut then on down to second contra-angled plate for second cut.
DE202010004167U1 (en) 2009-03-27 2010-07-08 Coperion Gmbh Fluidized bed classifier

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2846499A1 (en) * 1977-10-25 1979-04-26 Air Ind METHOD FOR REMOVING DUST PARTICLES THEREOF WITH LEADING PARTICLES
FR2467024A2 (en) * 1979-10-10 1981-04-17 Air Ind METHOD AND INSTALLATION FOR DEFLOWING PARTICLES
DE3223073A1 (en) * 1982-06-21 1984-03-08 M&S Industriebedarf GmbH, 5511 Ayl Pneumatic dust removal and conveying equipment
US4946044A (en) * 1988-05-18 1990-08-07 Kennedy Van Saup Corporation Aeration separator
US5087351A (en) * 1990-08-02 1992-02-11 Golden Peanut Company, A Georgia General Partnership Fluidized bed peanut sorter
EP0513445A1 (en) * 1991-05-14 1992-11-19 Bbs Consulting Method and plant for cleaning contaminated materials
WO1996020131A1 (en) * 1994-12-24 1996-07-04 ABB Fläkt AB Powder cleaning process and device
AU701953B2 (en) * 1994-12-24 1999-02-11 Abb Flakt Ab Method and device for the cleaning of powders
CN1071711C (en) * 1994-12-24 2001-09-26 Abb·弗拉克特有限公司 Powder cleaning process and device
US5975309A (en) * 1996-04-18 1999-11-02 Kawasaki Jukogyo Kabushiki Kaisha Fluidized-bed classifier
DE10054418A1 (en) * 2000-11-03 2002-05-16 Iss Engineering Air sifting granulates to clear impurities blows live air up through first hollow plate for first heavy impurities cut then on down to second contra-angled plate for second cut.
DE10054418B4 (en) * 2000-11-03 2006-05-18 Iss Engineering Method and device for removing dusty and fibrous additives from bulk material
DE202010004167U1 (en) 2009-03-27 2010-07-08 Coperion Gmbh Fluidized bed classifier

Also Published As

Publication number Publication date
FR2258904B1 (en) 1978-06-16

Similar Documents

Publication Publication Date Title
FR2258904A1 (en) Submicronic dust sepn from powder - esp. from alumina powder, using a fluidised bed with extra air jets
GB896647A (en) Unidirectional gas filter
DE3165906D1 (en) Apparatus for the discontinuous cleaning of dust-charged raw gas
ES481950A1 (en) Process and apparatus for the purification of waste air
GB1285470A (en) Catalytic cracking process
ES406429A1 (en) Filter arrangement
GB836283A (en) Method for adsorbing contaminating vapours from gaseous medium
GB1423077A (en) Carbon filter bed arrangement
CA992881A (en) Filter for removing particles and aerosols from air and other gases
GB1436172A (en) Method for the removal of vaporous or gaseous impurities from an air or gas current by adsorption in filters
GB1510272A (en) Method for the removal of dust from combustion exhaust gases
GB1096260A (en) The separation of suspended, unsupported noble-metal catalysts
ZA75573B (en) Improvements in or relating to apparatus for separating solid and/or liquid particles from a gaseous stream
GB1474215A (en) Process for removing hydrogen fluoride from gases containing it
PH10170A (en) Removal of dust particles from a dust laden stream of gases exiting from a multiple hearth furnace and reinjection of the dust particles into the furnace
FR2308433A1 (en) Filter for cleaning welding fumes - using magnetic iron trap followed by wire brush filter and then paper filter
CN215027364U (en) Non-noble metal catalyst CO gas purification device for tunnel air purification
JPS6451158A (en) Gas filter
CA1013686A (en) Method of removing particles and fluids from a gas stream by charged droplets
GB1291933A (en) A method and apparatus for purifying gases
SU797732A1 (en) Gas cleaning apparatus
JPS6043195B2 (en) Method for purifying phosphate-containing wastewater
JPS5250074A (en) Apparatus for removing a fume gas
SU631183A1 (en) Apparatus for cleaning gas from dust
FR2198773A1 (en) Filter for gas from aluminium electrolyser - electrostatic precipitator removes heavy metals from and alumina then absorbs fluorine cpds

Legal Events

Date Code Title Description
TP Transmission of property
ST Notification of lapse