EP 2091652 A1 20090826 - METHOD FOR PRODUCING VERY FINE PARTICLES AND JET MILLS THEREFOR, AIR SEPARATOR AND METHOD FOR THE OPERATION THEREOF
Title (en)
METHOD FOR PRODUCING VERY FINE PARTICLES AND JET MILLS THEREFOR, AIR SEPARATOR AND METHOD FOR THE OPERATION THEREOF
Title (de)
VERFAHREN ZUR ERZEUGUNG FEINSTER PARTIKEL UND STRAHLMÜHLE DAFÜR SOWIE WINDSICHTER UND BETRIEBSVERFAHREN DAVON
Title (fr)
PROCÉDÉ DE PRODUCTION DE PARTICULES EXTRÊMEMENT FINES, PULVÉRISATEUR À JET APPROPRIÉ, SÉPARATEUR PNEUMATIQUE ET PROCÉDÉ D'EXPLOITATION CORRESPONDANT
Publication
Application
Priority
- DE 2007001851 W 20071016
- DE 102006048865 A 20061016
Abstract (en)
[origin: WO2008046403A1] The invention relates to a method for producing very fine particles by means of a jet mill (1) comprising an integrated dynamic air separator (7). The rotational speed of a separator rotor (8) of the wind separator (7) and the inner amplification ratio V (= Di/DF) are selected, adjusted or controlled in such a way that the peripheral speed of the operating means (B) reaches up to 0.8 times the speed of sound of the operating medium on an immersion tube, that is associated with the separator wheel (8), or outlet connections (20). The invention also relates to a jet mill (1) comprising an integrated dynamic air separator (7) for producing very fine particles. The rotational speed of the separator rotor (8) of the air separator (7) and the inner amplification ratio V (= Di/DF) can be selected, adjusted or controlled in such a manner that the peripheral speed of the operating means (B) reaches up to 0.8 times the speed of sound of the operating means (B) on an immersion tube, that is associated with the separator wheel (8), or outlet connections (20). According to the invention, a dynamic air separator (7) having a separator wheel (8) is also provided. A source (tank 18a) for operating means (b) that has a higher speed of sound than air (343 m/s) is provided. Finally, the invention also relates to an operating method for an air separator (7) comprising a separator rotor or separator wheel (8). A fluid, in particular gas or vapour, is used as an operating agent (B), said fluid having a higher and in particular essentially higher speed of sound than air (343 m/s).
IPC 8 full level
B02C 19/06 (2006.01); B07B 7/083 (2006.01)
CPC (source: EP US)
B02C 19/068 (2013.01 - EP US); B07B 7/083 (2013.01 - EP US); B07B 11/04 (2013.01 - EP US)
Citation (search report)
See references of WO 2008046403A1
Citation (examination)
EP 2024093 A1 20090218 - NETZSCH CONDUX MAHLTECHNIK GMB [DE], et al
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC MT NL PL PT RO SE SI SK TR
DOCDB simple family (publication)
DE 102006048865 A1 20080417; BR PI0717607 A2 20140114; BR PI0717607 B1 20190820; CN 101557877 A 20091014; CN 101557877 B 20130410; DE 112007003097 A5 20090917; EP 2091652 A1 20090826; EP 2959975 A1 20151230; JP 2010506706 A 20100304; JP 5393466 B2 20140122; US 2009236451 A1 20090924; US 7866582 B2 20110111; WO 2008046403 A1 20080424
DOCDB simple family (application)
DE 102006048865 A 20061016; BR PI0717607 A 20071016; CN 200780038544 A 20071016; DE 112007003097 T 20071016; DE 2007001851 W 20071016; EP 07817686 A 20071016; EP 15002331 A 20071016; JP 2009532677 A 20071016; US 42513609 A 20090416