EP 3074137 A1 20161005 - METHOD FOR PRODUCING CEMENT
Title (en)
METHOD FOR PRODUCING CEMENT
Title (de)
VERFAHREN ZUR HERSTELLUNG VON ZEMENT
Title (fr)
PROCÉDÉ DE FABRICATION DE CIMENT
Publication
Application
Priority
- DE 102013019840 A 20131126
- EP 2014075308 W 20141121
Abstract (en)
[origin: WO2015078787A1] The invention relates to a method for producing a cement, wherein at least one material to be ground is ground in at least two grinding devices (1, 2, 16, 17, 18) into differently ground material with grain size distributions that are different from one another, the ground material from each of the at least two grinding devices (1, 2, 16, 17, 18) is fed separately from one another by its own respective classifying air stream (3a, 3b) to one of at least two bar-cage classifiers (4, 5), and wherein, in each of the at least two bar-cage classifiers (4, 5), a fine material fraction (9, 10) is separated out and a coarse grain fraction (7, 8) is discharged. The invention provides that the classifying air streams carrying the fine material fractions (9, 10) that emerge from the at least two bar-cage classifiers (4, 5) are brought together within a common discharge device (11), with the fine material fractions (9, 10) being uniformly mixed together. This allows the grain size distribution to be influenced and a high-strength cement to be produced cost-effectively.
IPC 8 full level
B02C 23/14 (2006.01); B07B 7/083 (2006.01)
CPC (source: EP)
B02C 23/14 (2013.01)
Citation (search report)
See references of WO 2015078787A1
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
DE 102013019840 A1 20150528; DK 3074137 T3 20180129; EP 3074137 A1 20161005; EP 3074137 B1 20171025; WO 2015078787 A1 20150604
DOCDB simple family (application)
DE 102013019840 A 20131126; DK 14805222 T 20141121; EP 14805222 A 20141121; EP 2014075308 W 20141121