EP2004329B1 - Procédé de génération de particules très fines au moyen d'un pulvérisateur à jet - Google Patents
Procédé de génération de particules très fines au moyen d'un pulvérisateur à jet Download PDFInfo
- Publication number
- EP2004329B1 EP2004329B1 EP07722207.3A EP07722207A EP2004329B1 EP 2004329 B1 EP2004329 B1 EP 2004329B1 EP 07722207 A EP07722207 A EP 07722207A EP 2004329 B1 EP2004329 B1 EP 2004329B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- classifier
- nozzle
- jet
- grinding
- jet mill
- 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.)
- Active
Links
- 238000000034 method Methods 0.000 title claims description 23
- 239000010419 fine particle Substances 0.000 title claims description 9
- 238000004519 manufacturing process Methods 0.000 title claims description 6
- 238000000227 grinding Methods 0.000 claims description 55
- 238000007654 immersion Methods 0.000 claims description 2
- 101100129500 Caenorhabditis elegans max-2 gene Proteins 0.000 claims 1
- 230000007423 decrease Effects 0.000 claims 1
- 239000000463 material Substances 0.000 description 28
- 239000007789 gas Substances 0.000 description 26
- 239000002245 particle Substances 0.000 description 20
- 239000000203 mixture Substances 0.000 description 9
- 239000012530 fluid Substances 0.000 description 8
- 239000007787 solid Substances 0.000 description 8
- 230000002093 peripheral effect Effects 0.000 description 6
- 230000001681 protective effect Effects 0.000 description 5
- 238000000926 separation method Methods 0.000 description 5
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- 238000010438 heat treatment Methods 0.000 description 4
- 238000013461 design Methods 0.000 description 3
- 238000001514 detection method Methods 0.000 description 3
- 238000003801 milling Methods 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 230000002000 scavenging effect Effects 0.000 description 3
- 238000003860 storage Methods 0.000 description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 239000006185 dispersion Substances 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
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- 238000009434 installation Methods 0.000 description 2
- 238000011835 investigation Methods 0.000 description 2
- 230000035515 penetration Effects 0.000 description 2
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- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 239000000443 aerosol Substances 0.000 description 1
- 229910021486 amorphous silicon dioxide Inorganic materials 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000005422 blasting Methods 0.000 description 1
- 239000006229 carbon black Substances 0.000 description 1
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- 239000000470 constituent Substances 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
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- 238000011161 development Methods 0.000 description 1
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- 238000005516 engineering process Methods 0.000 description 1
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- 239000000499 gel Substances 0.000 description 1
- 239000001307 helium Substances 0.000 description 1
- 229910052734 helium Inorganic materials 0.000 description 1
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 description 1
- 238000010902 jet-milling Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000011017 operating method Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000010926 purge Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000012216 screening Methods 0.000 description 1
- 150000004760 silicates Chemical class 0.000 description 1
- 125000005624 silicic acid group Chemical class 0.000 description 1
- 235000012239 silicon dioxide Nutrition 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
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- 238000012360 testing method Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C19/00—Other disintegrating devices or methods
- B02C19/06—Jet mills
- B02C19/065—Jet mills of the opposed-jet type
Definitions
- This object is achieved by a method for producing very fine particles according to claim 1. This advantageously creates a process for the energy-optimized operation of a jet mill by means of compressed gases.
Landscapes
- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Disintegrating Or Milling (AREA)
- Combined Means For Separation Of Solids (AREA)
Claims (8)
- Procédé de génération de particules très fines au moyen d'un pulvérisateur a jet (1), dans lequel la distance relative arel = a/dbuse, où a représente la longueur du jet et dbuse le diamètre de la buse, des orifices d'admission de jets de pulvérisation (5) disposés au moins approximativement de manière concentrique, leurs lignes médianes se coupant au moins à peu près en un point, est réglée en fonction de la pression du moyen de fonctionnement, caractérisé en ce que, pour la distance relative arel = a/dDüse, dans lequel
p0 [bar(abs)] représente la pression gazeuse en amont de la buse ψmax le coefficient d'écoulement κ l'exposant isentropique p1 [bar(abs)] la pression de dilatation et en outre C = 9,922. - Procédé selon la revendication 1, caractérisé en ce que chaque orifice d'admission de jet de pulvérisation (5) est formé par une buse d'admission ou une buse de pulvérisation (9),
- Procédé selon la revendication 1 ou 2, caractérisé en ce que 3 ou 4 orifices d'admission de jets de pulvérisation (5) sont présents.
- Procédé selon une des revendications précédentes, caractérisé en ce qu'on utilise un pulvérisateur a jet à lit fluidisé.
- Procédé selon une des revendications précédentes, caractérisé en ce qu'on utilise un séparateur à air dynamique (7) intégré dans le pulvérisateur a jet (1).
- Procédé selon la revendication 5, caractérisé en ce que le séparateur à air (7) contient un rotor visible ou une roue visible (8) dont le passage libre augmente lorsque son rayon diminue, de sorte que, en fonctionnement, la surface traversée du rotor ou de la roue visible (8) est au moins approximativement constante.
- Procédé selon la revendication 5 ou 6, caractérisé en ce que le séparateur à air (7) contient un rotor visible ou une roue visible (8) avec un tube plongeur (20) en particulier remplaçable, qui est configuré de manière à tourner avec le rotor visible ou la roue visible (8) lorsqu'il ou elle tourne.
- Procédé selon une des revendications précédentes, caractérisé en ce qu'une chambre de sortie de produits fins (41) est prévue et présente une coupe transversale élargie dans la direction d'écoulement.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102006017472A DE102006017472A1 (de) | 2006-04-13 | 2006-04-13 | Verfahren zur Erzeugung feinster Partikel mittels einer Strahlmühle |
PCT/DE2007/000649 WO2007118460A1 (fr) | 2006-04-13 | 2007-04-13 | Procédé de génération de particules très fines au moyen d'un pulvérisateur à jet |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2004329A1 EP2004329A1 (fr) | 2008-12-24 |
EP2004329B1 true EP2004329B1 (fr) | 2019-11-27 |
Family
ID=38461131
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP07722207.3A Active EP2004329B1 (fr) | 2006-04-13 | 2007-04-13 | Procédé de génération de particules très fines au moyen d'un pulvérisateur à jet |
Country Status (8)
Country | Link |
---|---|
US (1) | US8177149B2 (fr) |
EP (1) | EP2004329B1 (fr) |
JP (1) | JP5463138B2 (fr) |
CN (1) | CN101421044B (fr) |
BR (1) | BRPI0710652B1 (fr) |
DE (1) | DE102006017472A1 (fr) |
ES (1) | ES2773730T3 (fr) |
WO (1) | WO2007118460A1 (fr) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102021002671A1 (de) | 2021-05-21 | 2022-11-24 | Hosokawa Alpine Aktiengesellschaft | Verfahren zur Ermittlung des optimalen Düsenabstands in Strahlmühlen und Mahlverfahren zur Erzeugung feinster Partikel |
Families Citing this family (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102006017472A1 (de) | 2006-04-13 | 2007-10-18 | Nied, Roland, Dr. Ing. | Verfahren zur Erzeugung feinster Partikel mittels einer Strahlmühle |
DE102006023193A1 (de) * | 2006-05-17 | 2007-11-22 | Nied, Roland, Dr.-Ing. | Verfahren zur Erzeugung feinster Partikel mittels einer Strahlmühle |
DE102006048864A1 (de) * | 2006-10-16 | 2008-04-17 | Roland Dr. Nied | Verfahren zur Erzeugung feinster Partikel und Strahlmühle dafür sowie Windsichter und Betriebsverfahren davon |
DE102009045116A1 (de) | 2009-09-29 | 2011-03-31 | Evonik Degussa Gmbh | Niederdruckvermahlungsverfahren |
US20120325942A1 (en) * | 2011-06-27 | 2012-12-27 | General Electric Company | Jet milling of boron powder using inert gases to meet purity requirements |
DE102013000426A1 (de) * | 2013-01-14 | 2014-07-17 | Roland Nied | Verfahren zur Strahlmahlung sowie Strahlmühle dafür |
CN103977870B (zh) * | 2014-05-26 | 2016-03-30 | 北京航空航天大学 | 采用气流粉碎剥离工艺制备石墨烯前驱体二维纳米石墨粉的方法 |
WO2016202320A1 (fr) * | 2015-06-15 | 2016-12-22 | Netzsch Trockenmahltechnik Gmbh | Procédé de fragmentation d'un produit à broyer et broyeur associé |
US10780443B2 (en) * | 2017-05-11 | 2020-09-22 | Roger Swensen | Method, system and apparatus for hard contaminate separation from a particulate |
CN107213972B (zh) * | 2017-05-17 | 2019-06-04 | 宁波拜尔玛生物科技有限公司 | 基于纳米技术制备的甘露聚糖及其抗肿瘤抗病毒应用 |
DE102018120596A1 (de) * | 2018-08-23 | 2020-02-27 | Netzsch Trockenmahltechnik Gmbh | Verfahren und Vorrichtung zur Ausschleusung schwer mahlbarer Partikel aus einer Spiralstrahlmühle |
US11731142B2 (en) * | 2019-01-09 | 2023-08-22 | Qwave Solutions, Inc. | Methods of jet milling and systems |
DE102020006724A1 (de) * | 2020-11-03 | 2022-05-05 | Netzsch Trockenmahltechnik Gmbh | Betriebsverfahren für einen Sichter und Sichter zur Klassifizierung |
Family Cites Families (26)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3877647A (en) | 1973-05-30 | 1975-04-15 | Vladimir Ivanovich Gorobets | Jet mill |
GB1481304A (en) | 1974-09-05 | 1977-07-27 | Boc International Ltd | Powder forming |
DE2922438A1 (de) | 1979-06-01 | 1980-12-18 | Stiegler Karl Heinz | Maschine zum bearbeiten einer bewegten werkstoffbahn mittels eines beweglichen schweisswerkzeugs |
DE3140294C2 (de) * | 1981-10-10 | 1983-11-17 | Alpine Ag, 8900 Augsburg | Verfahren und Vorrichtung zum Trennen eines Gutgemisches in Komponenten unterschiedlicher Mahlbarkeit |
EP0211117A3 (fr) | 1985-08-02 | 1988-02-03 | Rmd Industries, Inc. | Procédé et appareil pour la production de poudre finement divisée |
DE3620440A1 (de) | 1986-06-18 | 1987-12-23 | Indutec Industrietechnik Gmbh | Zweistufiges unter druck betriebenes gegenstrahl-zerkleinerungsverfahren zur vergroesserung der oberflaeche feinkoerniger bis koerniger schuettgueter |
DE3825469A1 (de) | 1988-07-27 | 1990-02-01 | Basf Ag | Verfahren zur dispergierung, zerkleinerung bzw. desagglomeration und sichtung von feststoffen |
US5252110A (en) * | 1990-08-01 | 1993-10-12 | Roland Nied | Preferably vertical air separator |
IT1248066B (it) * | 1991-06-17 | 1995-01-05 | Italcementi Spa | Separatore dinamico per materiali polverulenti, in particolare cementoed impianto che lo comprende |
CN2111798U (zh) * | 1991-12-10 | 1992-08-05 | 武汉工业大学 | 喷射气动式选粉机 |
DE4243438C2 (de) * | 1992-12-22 | 1996-06-05 | Hosokawa Alpine Ag | Verfahren und Vorrichtung zur Fließbett-Strahlmahlung |
JPH06271309A (ja) * | 1993-03-22 | 1994-09-27 | Sumitomo Sitix Corp | 多結晶シリコンの破砕方法 |
CN2180331Y (zh) * | 1994-05-26 | 1994-10-26 | 西安秦岭超细粉厂 | 粉碎室为流化床结构式超微气流粉碎机 |
JP2953985B2 (ja) * | 1995-04-20 | 1999-09-27 | 松下電子工業株式会社 | サンドブラスト装置及び気体放電型表示装置の製造方法 |
US5899396A (en) * | 1995-09-04 | 1999-05-04 | Nied; Roland | Air separator and single-rotor air separator mill with such an air separator |
DE19824062A1 (de) | 1998-05-29 | 1999-12-02 | Roland Nied | Mahlverfahren unter Verwendung einer Strahlmühle |
JP2000015126A (ja) * | 1998-06-29 | 2000-01-18 | Minolta Co Ltd | 流動層型ジェット粉砕機 |
JP3901862B2 (ja) * | 1998-12-21 | 2007-04-04 | 信越半導体株式会社 | ウェーハの結合方法 |
US6398139B1 (en) * | 1999-08-23 | 2002-06-04 | Roland Nied | Process for fluidized-bed jet milling, device for carrying out this process and unit with such a device for carrying out this process |
US6383706B1 (en) | 2000-07-13 | 2002-05-07 | Xerox Corporation | Particulate smoothing process |
JP2005046758A (ja) * | 2003-07-30 | 2005-02-24 | Daifuku Kogyo Kk | ゴムタイヤ破砕装置及びその方法 |
JP2005213062A (ja) * | 2004-01-27 | 2005-08-11 | Toyota Motor Corp | 水砕スラグの製造方法および水砕スラグの製造装置 |
WO2007061970A2 (fr) * | 2005-11-18 | 2007-05-31 | Chicago Mercantile Exchange | Operations croisees mixtes sur les monnaies |
DE102006017472A1 (de) | 2006-04-13 | 2007-10-18 | Nied, Roland, Dr. Ing. | Verfahren zur Erzeugung feinster Partikel mittels einer Strahlmühle |
DE102006023193A1 (de) | 2006-05-17 | 2007-11-22 | Nied, Roland, Dr.-Ing. | Verfahren zur Erzeugung feinster Partikel mittels einer Strahlmühle |
US7713614B2 (en) | 2006-09-19 | 2010-05-11 | Kuraray Co., Ltd. | Resin composition and multilayer structure |
-
2006
- 2006-04-13 DE DE102006017472A patent/DE102006017472A1/de not_active Withdrawn
-
2007
- 2007-04-13 WO PCT/DE2007/000649 patent/WO2007118460A1/fr active Application Filing
- 2007-04-13 JP JP2009504565A patent/JP5463138B2/ja active Active
- 2007-04-13 US US12/296,761 patent/US8177149B2/en active Active
- 2007-04-13 EP EP07722207.3A patent/EP2004329B1/fr active Active
- 2007-04-13 CN CN2007800131720A patent/CN101421044B/zh active Active
- 2007-04-13 BR BRPI0710652A patent/BRPI0710652B1/pt active IP Right Grant
- 2007-04-13 ES ES07722207T patent/ES2773730T3/es active Active
Non-Patent Citations (1)
Title |
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None * |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102021002671A1 (de) | 2021-05-21 | 2022-11-24 | Hosokawa Alpine Aktiengesellschaft | Verfahren zur Ermittlung des optimalen Düsenabstands in Strahlmühlen und Mahlverfahren zur Erzeugung feinster Partikel |
Also Published As
Publication number | Publication date |
---|---|
CN101421044A (zh) | 2009-04-29 |
BRPI0710652A2 (pt) | 2011-08-23 |
DE102006017472A1 (de) | 2007-10-18 |
US20100065668A1 (en) | 2010-03-18 |
JP5463138B2 (ja) | 2014-04-09 |
US8177149B2 (en) | 2012-05-15 |
EP2004329A1 (fr) | 2008-12-24 |
ES2773730T3 (es) | 2020-07-14 |
CN101421044B (zh) | 2012-11-28 |
WO2007118460A1 (fr) | 2007-10-25 |
JP2009533207A (ja) | 2009-09-17 |
BRPI0710652B1 (pt) | 2020-05-19 |
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