EP 0603602 B1 19970514 - Method and apparatus for jet milling in a fluidised bed
Title (en)
Method and apparatus for jet milling in a fluidised bed
Title (de)
Verfahren und Vorrichtung zur Fliessbett-Strahlmahlung
Title (fr)
Procédé et appareil de broyage à jet à lit fluidisé
Publication
Application
Priority
DE 4243438 A 19921222
Abstract (en)
[origin: US5423490A] Method and device for fluidized jet mill grinding wherein a nozzle construction is provided in which the momentum of the jet issuing from the nozzle is varied between areas of high momentum and areas of low momentum immediately after leaving the nozzle. A drop in pressure from the periphery to the core area of the jet develops so that flow channels are formed at right angles to the flow direction of the jet. Particles of the material to be comminuted are thereby drawn into the center of the jet where they are accelerated to the impact velocity necessary for their comminution during the course of the jet travel.
IPC 1-7
IPC 8 full level
B02C 19/06 (2006.01)
CPC (source: EP KR US)
B02C 19/06 (2013.01 - EP KR US)
Designated contracting state (EPC)
AT BE CH DE DK ES FR GB IE IT LI NL SE
DOCDB simple family (publication)
US 5423490 A 19950613; AT E152933 T1 19970515; CN 1051254 C 20000412; CN 1091338 A 19940831; DE 4243438 A1 19940623; DE 4243438 C2 19960605; DE 59306446 D1 19970619; EP 0603602 A1 19940629; EP 0603602 B1 19970514; ES 2104024 T3 19971001; JP 3095937 B2 20001010; JP H0747298 A 19950221; KR 940013611 A 19940715; KR 970001784 B1 19970215; MY 112091 A 20010430; TW 246650 B 19950501
DOCDB simple family (application)
US 17244593 A 19931221; AT 93119416 T 19931202; CN 93119950 A 19931222; DE 4243438 A 19921222; DE 59306446 T 19931202; EP 93119416 A 19931202; ES 93119416 T 19931202; JP 32178793 A 19931221; KR 930029023 A 19931222; MY PI19932795 A 19931221; TW 82110798 A 19931220