EP 0451290 A4 19920415 - VIBRATION GRINDING CLASSIFIER
Title (en)
VIBRATION GRINDING CLASSIFIER
Publication
Application
Priority
JP 28547989 A 19891031
Abstract (en)
[origin: WO9106370A1] A vibration grinding classifier for a mineral material, which is simple in construction, compact in size and capable of offering a satisfactory classifying accuracy. This classifier is provided with a vibration motor (3) for oscillating grinding media in an annular vibration tank (1) containing therein a multitude of grinding media for grinding a powdery material (P) and a supply opening for the material (P). The lower part of the tank (1) serves as a grinding chamber (1a) in which the opening width in the radial direction is progressively increased from the bottom upward. The bottom plate of the grinding chamber is provided with a multitude of perforations (4a) for feeding air, which communicate with an air opening (4) for a classifying gas. The upper part of the tank (1) acts as a classifying chamber (1b) extending upwardly with the same opening width as that at the top end of the grinding chamber maintained. The top of the classifying chamber is provided with a discharge opening (7) through which a ground article of an intended particle size or below is discharged together with the classifying gas blown up through the perforations (4a).
IPC 1-7
IPC 8 full level
B02C 17/14 (2006.01); B02C 17/18 (2006.01); B02C 23/10 (2006.01); B02C 23/24 (2006.01); B02C 23/30 (2006.01); B07B 4/00 (2006.01); B07B 4/08 (2006.01); B07B 9/02 (2006.01)
CPC (source: EP)
B02C 17/14 (2013.01); B02C 23/30 (2013.01); B07B 4/00 (2013.01); B07B 4/08 (2013.01); B07B 9/02 (2013.01)
Citation (search report)
- No further relevant documents have been disclosed
- See references of WO 9106370A1
Designated contracting state (EPC)
DE FR GB
DOCDB simple family (publication)
WO 9106370 A1 19910516; AU 6609090 A 19910531; EP 0451290 A1 19911016; EP 0451290 A4 19920415; JP H03146181 A 19910621
DOCDB simple family (application)
JP 9001381 W 19901026; AU 6609090 A 19901026; EP 90915824 A 19901026; JP 28547989 A 19891031