RU97112160A - METHOD AND DEVICE FOR CLEANING POWDER - Google Patents

METHOD AND DEVICE FOR CLEANING POWDER

Info

Publication number
RU97112160A
RU97112160A RU97112160/25A RU97112160A RU97112160A RU 97112160 A RU97112160 A RU 97112160A RU 97112160/25 A RU97112160/25 A RU 97112160/25A RU 97112160 A RU97112160 A RU 97112160A RU 97112160 A RU97112160 A RU 97112160A
Authority
RU
Russia
Prior art keywords
crusher
powder
alumina
separating device
particle size
Prior art date
Application number
RU97112160/25A
Other languages
Russian (ru)
Other versions
RU2146225C1 (en
Inventor
Лотар Шу
Хельге Янсен
Original Assignee
АББ Флэкт АБ
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
Priority claimed from DE19544887A external-priority patent/DE19544887A1/en
Application filed by АББ Флэкт АБ filed Critical АББ Флэкт АБ
Priority claimed from PCT/EP1995/004917 external-priority patent/WO1996020131A1/en
Publication of RU97112160A publication Critical patent/RU97112160A/en
Application granted granted Critical
Publication of RU2146225C1 publication Critical patent/RU2146225C1/en

Links

Claims (2)

1. Способ механической очистки порошка (25), в частности, первичной окиси алюминия, который для отделения прилипающих к его поверхности загрязнений (35) в виде частиц направляют на поверхность (2Р), отличающийся тем, что подлежащую очистке окись алюминия (25) подают в отделительное приспособление (2) и с помощью дробилки (2R) данного отделительного приспособления (2) со скоростью 20 - 30 м/с несколько десяткjd раз в секунду в течение от менее, чем одной секунды, до 10 секунд направляют на отбойные диски (2Р), вращающиеся в направлении, противоположном направлению вращения дробилки (2R), и очищенную порошковую окись алюминия (30) величиной частиц выше 10 мкм отделяют от очищенной порошковой окиси алюминия (31) величиной частиц менее 10 мкм и загрязнений (35) с помощью воздушного сепаратора (3) и/или циклона и подают на электролиз расплава, при этом порошковую окись алюминия (31) величиной частиц менее 10 мкм и загрязнения (35) подают на свалку или в качестве сырья на дальнейшую переработку.1. The method of mechanical cleaning of the powder (25), in particular, primary alumina, which is sent to the surface (2P) in the form of particles to separate contaminants adhering to its surface (35), characterized in that the alumina to be cleaned (25) is supplied into the separating device (2) and using the crusher (2R) of this separating device (2) at a speed of 20-30 m / s, several dozen jd times per second for less than one second, up to 10 seconds are directed to the fenders (2Р ) rotating in the opposite direction to the rotation of the crusher (2R), and the purified alumina powder (30) with a particle size above 10 μm is separated from the purified alumina powder (31) with a particle size of less than 10 μm and impurities (35) using an air separator (3) and / or cyclone and fed to the electrolysis of the melt, while powdered aluminum oxide (31) with a particle size of less than 10 microns and pollution (35) is fed to a landfill or as raw material for further processing. 2. Очистительное устройство для механического отделения загрязнений (35) в виде частиц от поверхности порошка (25), в частности, первичной окиси алюминия, с помощью отделительного приспособления (2), снабженной размещенной внутри него поверхностью (2Р), отличающееся тем, что отделительное приспособление (2) выполнено в качестве ударно-отражательной мельницы, по меньшей мере, с одной дробилкой (2R), с помощью которой подлежащий очистке порошок (25) с заданной скоростью направляется на отбойные диски (2Р), вращающиеся в направлении, противоположном направлению вращения дробилки (2R), причем дробилка (2R) и отбойные диски (2Р) выполнены из твердого сплава, керамики или полимера, и за отделительным приспособлением (2) установлен воздушный сепаратор (3) и/или циклон (4). 2. A cleaning device for mechanically separating contaminants (35) in the form of particles from the surface of the powder (25), in particular primary alumina, using a separating device (2) provided with a surface (2P) placed inside it, characterized in that the device (2) is made as a shock-reflective mill with at least one crusher (2R), with which the powder to be cleaned (25) is directed at a given speed to the baffle disks (2P), rotating in the opposite direction to control board of rotation of the crusher (2R), moreover, the crusher (2R) and bump discs (2P) are made of hard alloy, ceramic or polymer, and an air separator (3) and / or cyclone (4) is installed behind the separating device (2).
RU97112160A 1994-12-24 1995-12-13 Method and device for mechanical cleaning of powder from impurities in the form of particles sticking to it RU2146225C1 (en)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
DEP4446528.9 1994-12-24
DE4446528 1994-12-24
DE19544887.1 1995-12-01
DE19544887A DE19544887A1 (en) 1994-12-24 1995-12-01 Powder cleaning
PCT/EP1995/004917 WO1996020131A1 (en) 1994-12-24 1995-12-13 Powder cleaning process and device

Publications (2)

Publication Number Publication Date
RU97112160A true RU97112160A (en) 1999-06-20
RU2146225C1 RU2146225C1 (en) 2000-03-10

Family

ID=25943325

Family Applications (1)

Application Number Title Priority Date Filing Date
RU97112160A RU2146225C1 (en) 1994-12-24 1995-12-13 Method and device for mechanical cleaning of powder from impurities in the form of particles sticking to it

Country Status (18)

Country Link
EP (1) EP0799157B1 (en)
JP (1) JPH11510466A (en)
CN (1) CN1071711C (en)
AR (1) AR000411A1 (en)
AU (1) AU701953B2 (en)
BR (1) BR9510552A (en)
CA (1) CA2208578A1 (en)
CZ (1) CZ289384B6 (en)
ES (1) ES2134516T3 (en)
IS (1) IS1871B (en)
MX (1) MX9704766A (en)
NO (1) NO314799B1 (en)
NZ (1) NZ319564A (en)
RO (1) RO120062B1 (en)
RU (1) RU2146225C1 (en)
SI (1) SI9520151A (en)
SK (1) SK280969B6 (en)
WO (1) WO1996020131A1 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SG73677A1 (en) * 1998-10-30 2000-09-19 Kumagai Gumi Co Ltd Method and system for carrying out treatment of granular substances with pollutants adhered
JP5371721B2 (en) * 2009-12-09 2013-12-18 佐藤鉄工株式会社 Crushing and peeling method
CN101780433B (en) * 2010-01-12 2012-05-09 北京科大国泰能源环境工程技术有限公司 Method and device for fluidization separation of phosphorus element and iron element in high-phosphorus hematite
CN105073283B (en) * 2013-02-15 2018-07-06 株式会社大贵 Separator
CN106733066A (en) * 2015-11-23 2017-05-31 安徽真信涂料有限公司 A kind of crushing and screening device

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB778117A (en) * 1955-09-20 1957-07-03 Smidth & Co As F L A method of and an apparatus for separating foreign substances from a pulverous or granular material
GB1199303A (en) * 1966-09-23 1970-07-22 Ckd Praha Improvements in or relating to Impact Crushers
FR2258904A1 (en) * 1974-01-30 1975-08-22 Air Ind Submicronic dust sepn from powder - esp. from alumina powder, using a fluidised bed with extra air jets
US4361290A (en) * 1980-06-23 1982-11-30 Francis Peter M Adjustable rotary crusher
NO147791C (en) * 1981-02-05 1983-06-15 Norsk Viftefabrikk As PROCEDURE FOR THE SEPARATION OF FINE DUST CONTAINING POLLUTANTS FROM ALUMINUM OXYDE USED AS ADSORBENT IN A DRY CLEANING SYSTEM
IT1216574B (en) * 1988-04-14 1990-03-08 Pozzato Alberto Breganze Vicen HAMMER MILL, FOR CRUSHING OF MINERALS AND SIMILAR.

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