EP 0796660 A1 19970924 - Method and device for fabricating ultrafine powders
Title (en)
Method and device for fabricating ultrafine powders
Title (de)
Verfahren und Vorrichtung zur Herstellung von extrem feinen Pulvern
Title (fr)
Procédé et dispositif pour la fabrication de poudres ultrafines
Publication
Application
Priority
- DE 19611112 A 19960321
- US 98553597 A 19971205
Abstract (en)
The system has an air-turbulence mill (4) which is used to dry the powder while in suspension. Hot air can be supplied to the drying mill as a carrier gas, the inlet and outlet temperatures being respectively 200 to 500 and 70 to 110 degrees celsius. The suspension containing the powder can be sprayed by nozzles into the mill drying chamber (5), and surface treatment of the powder can be carried out in the mill in addition to the drying operation, typically using a liquid sprayed by nozzles into the chamber.
Abstract (de)
Verfahren zur Herstellung von extrem feinen Pulvern, welche in einer mechanischen Mühle (1) naß gemahlen und anschließend getrocknet werden; um eine weitestgehend agglomeratfreie Trocknung der Pulver zu erreichen, wird vorgeschlagen, daß zur Trocknung der in einer Suspension vorliegenden Pulver eine Luftwirbelmühle als Trockner (4) verwendet wird. <IMAGE>
IPC 1-7
IPC 8 full level
B02C 13/14 (2006.01); B02C 17/16 (2006.01); B02C 21/00 (2006.01); B02C 23/24 (2006.01)
CPC (source: EP US)
B02C 13/14 (2013.01 - EP US); B02C 17/16 (2013.01 - EP US); B02C 21/00 (2013.01 - EP US); B02C 23/24 (2013.01 - EP US)
Citation (search report)
- [Y] DE 4204600 A1 19930819 - OSER ERWIN DR [DE]
- [Y] DE 3811910 A1 19891019 - MAHLTECHNIK GOERGENS GMBH [DE]
- [YD] EP 0226900 A2 19870701 - JACKERING ALTENBURGER MASCH [DE]
- [Y] DE 29515434 U1 19951123 - MAHLTECHNIK GOERGENS GMBH [DE]
- [YA] DE 4200827 A1 19930722 - JACKERING ALTENBURGER MASCH [DE]
- [A] GB 2132128 A 19840704 - FREUNT IND CO LTD
- [A] EP 0406903 A1 19910109 - FREUNT IND CO LTD [JP]
Designated contracting state (EPC)
BE DE FR GB IT
DOCDB simple family (publication)
EP 0796660 A1 19970924; EP 0796660 B1 20000614; DE 19611112 A1 19970925; DE 19611112 C2 20020418; US 5984212 A 19991116
DOCDB simple family (application)
EP 97104100 A 19970312; DE 19611112 A 19960321; US 98553597 A 19971205