EP 0308350 A3 19900207 - MINERAL FINE-PULVERISING METHOD, AND PULVERISER FOR CARRYING OUT THIS METHOD
Title (en)
MINERAL FINE-PULVERISING METHOD, AND PULVERISER FOR CARRYING OUT THIS METHOD
Publication
Application
Priority
FR 8712875 A 19870917
Abstract (en)
[origin: EP0308350A2] The subject of the invention is a method for the fine pulverising of minerals, consisting in subjecting a layer of the material to be pulverised to a compression between two rolls (10, 12) with parallel axes, rotating in opposite directions and pushed elastically towards each other, and a pulveriser for carrying out this method. In order to prevent the formation of agglomerates, the pulverised material is kept under pressure in the space (22) defined by the rolls (10, 12) immediately below the imaginary plane (X-X) containing the axes of the rolls by closing the said space by a member (14) forming a barrier. <IMAGE>
IPC 1-7
IPC 8 full level
B02C 4/02 (2006.01)
CPC (source: EP)
B02C 4/02 (2013.01)
Citation (search report)
- [Y] DE 3525936 A1 19870129 - KRUPP POLYSIUS AG [DE]
- [Y] US 1396711 A 19211108 - GEORGE JOHNSTON
- [Y] FR 2114071 A5 19720630 - CONSTANTIN E SA
- [A] GB 688165 A 19530225 - MIAG VERTRIEBS GMBH
- [A] DE 3323517 A1 19850110 - KLOECKNER HUMBOLDT DEUTZ AG [DE]
- [A] DE 1757093 A1 19710318 - ALPINE AG
Designated contracting state (EPC)
BE CH ES GR IT LI
DOCDB simple family (publication)
EP 0308350 A2 19890322; EP 0308350 A3 19900207; EP 0308350 B1 19950809; ES 2076162 T3 19951101; FR 2620635 A1 19890324; FR 2620635 B1 19920911; GR 3017286 T3 19951130
DOCDB simple family (application)
EP 88402353 A 19880916; ES 88402353 T 19880916; FR 8712875 A 19870917; GR 950402404 T 19950831