EP 0292739 B1 19910306 - METHOD AND ARRANGEMENT FOR BREAKING UP GRINDABLE MATERIAL
Title (en)
METHOD AND ARRANGEMENT FOR BREAKING UP GRINDABLE MATERIAL
Publication
Application
Priority
DE 3717976 A 19870527
Abstract (en)
[origin: US4889289A] The invention relates to a method and to apparatus for crushing brittle material for grinding using a roller mill and a material bed roll mill for crushing the material for grinding falling downwards over the edge of the grinding track before it is delivered to the sifter. By the use of a material bed roll mill a considerable increase in the throughput capacity of the apparatus and a significant saving of energy can be achieved.
IPC 1-7
IPC 8 full level
B02C 21/00 (2006.01); B02C 23/12 (2006.01)
CPC (source: EP US)
B02C 21/00 (2013.01 - EP US); B02C 23/12 (2013.01 - EP US)
Designated contracting state (EPC)
BE DE ES FR GB IT
DOCDB simple family (publication)
EP 0292739 A2 19881130; EP 0292739 A3 19891115; EP 0292739 B1 19910306; BR 8802553 A 19881220; CA 1301134 C 19920519; DE 3717976 A1 19881208; DE 3861909 D1 19910411; DK 286288 A 19881128; DK 286288 D0 19880525; ES 2021408 B3 19911101; US 4889289 A 19891226; ZA 883511 B 19881122
DOCDB simple family (application)
EP 88107072 A 19880503; BR 8802553 A 19880525; CA 566506 A 19880511; DE 3717976 A 19870527; DE 3861909 T 19880503; DK 286288 A 19880525; ES 88107072 T 19880503; US 19104988 A 19880506; ZA 883511 A 19880518