| (19) |
 |
|
(11) |
EP 0 372 149 A3 |
| (12) |
EUROPEAN PATENT APPLICATION |
| (88) |
Date of publication A3: |
|
23.01.1991 Bulletin 1991/04 |
| (43) |
Date of publication A2: |
|
13.06.1990 Bulletin 1990/24 |
| (22) |
Date of filing: 15.03.1989 |
|
|
| (84) |
Designated Contracting States: |
|
AT CH DE ES FR GB IT LI SE |
| (30) |
Priority: |
05.12.1988 JP 308501/88
|
| (71) |
Applicant: KOTOBUKI ENGINEERING & MANUFACTURING CO LTD |
|
Tokio (JP) |
|
| (72) |
Inventor: |
|
- Kawaguchi, Mitsuru
Kure-shi
Hiroshima-ken 737-01 (JP)
|
| (74) |
Representative: Henkel, Feiler, Hänzel & Partner |
|
Möhlstrasse 37
81675 München
81675 München (DE) |
|
| |
|
| (54) |
Apparatus and method of breaking pieces of solid mineral material in fragments, and
method of sorting fragments of solid mineral material according to size |
(57) A centrifugal breaking apparatus is constructed so that for having an effect on the
breaking function, the pieces of solid mineral material are thrown from the axle of
the rotor, when rotating at an increased speed, in tangential directions, through
the radial outlets of the rotor by centrifugal force to strike against the "dead bed"
of fragments of solid mineral material which encircles the rotor, then fragments are
reduced by vibrating the "dead bed".