Global Patent Index - EP 2024091 A1

EP 2024091 A1 2009-02-18 - ROLLER PRESS, IN PARTICULAR FOR INTERPARTICLE CRUSHING

Title (en)

ROLLER PRESS, IN PARTICULAR FOR INTERPARTICLE CRUSHING

Title (de)

ROLLENPRESSE INSBESONDERE ZUR GUTBETTZERKLEINERUNG

Title (fr)

PRESSE À ROULEAUX NOTAMMENT POUR LE BROYAGE D'UN LIT DE MATIÈRE

Publication

EP 2024091 A1 (DE)

Application

EP 07725735 A

Priority

  • EP 2007004855 W
  • DE 102006025833 A

Abstract (en)

[origin: CA2653065A1] In order to provide a roller press which is used in particular for interp article crushing and in the material feed shaft (12) of which both coarse-gr ained material (14), such as fresh material for example, and fine-grained ma terial (19), such as, for example, recirculated grits of a downstream classi fier and/or, for example, fly ash, are introduced, wherein, despite the mark edly different grain size and grain distribution in the two material flows t o be drawn into the roller gap, the stability of the particle bed or grindin g bed and thus a high grinding efficiency are ensured, it is proposed accord ing to the invention that a pressure screw (17) conveying the fine material under applied pressure be inserted into the material feed shaft (12) through the at least one fine-grain charging opening (16) of the latter, the nozzle -like orifice (20) of which pressure screw (17), in particular a flat nozzle , extends right into the central region in which the material is drawn into the pressing roller gap.

IPC 8 full level (invention and additional information)

B02C 4/28 (2006.01); B30B 15/30 (2006.01)

CPC (invention and additional information)

B02C 4/286 (2013.01); B30B 15/308 (2013.01)

Citation (search report)

See references of WO 2007140929A1

Designated contracting state (EPC)

AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC MT NL PL PT RO SE SI SK TR

Designated extension state (EPC)

AL BA HR MK RS

DOCDB simple family

DE 102006025833 A1 20071206; CA 2653065 A1 20071213; CN 101460247 A 20090617; DK 2024091 T3 20130325; EP 2024091 A1 20090218; EP 2024091 B1 20121212; RU 2008144301 A 20100720; US 2009236455 A1 20090924; WO 2007140929 A1 20071213