Global Patent Index - EP 2025408 B1

EP 2025408 B1 20181226 - Method and assembly for regulating the grind drying procedure of a coal dust ventilator mill

Title (en)

Method and assembly for regulating the grind drying procedure of a coal dust ventilator mill

Title (de)

Verfahren und Anordnung zur Regelung des Mahltrocknungsprozesses einer Kohlenstaub-Ventilatormühle

Title (fr)

Procédé et dispositif de réglage du processus de séchage par malaxage d'un broyeur à ventilateur de poussière de charbon

Publication

EP 2025408 B1 20181226 (DE)

Application

EP 08014048 A 20080806

Priority

DE 102007038956 A 20070817

Abstract (en)

[origin: EP2025408A1] The method involves controlling parameters such as milling speed, temperature after milling and primary air quantity. Pre-control curves are provided for controlling the milling speed, the temperature after milling and the primary air quantity, where the pre-control curves exhibit minimum and maximum curves. The pre-control curves are determined depending on coal throughput. The pre-control curve of the milling speed is corrected depending on a state of wear of a mill-tool of a coal dust fan mill. An independent claim is also included for an arrangement for controlling a pulverized drying process of raw lignite.

IPC 8 full level

B02C 13/13 (2006.01); B02C 23/24 (2006.01); B02C 25/00 (2006.01)

CPC (source: EP)

B02C 13/13 (2013.01); B02C 23/24 (2013.01); B02C 25/00 (2013.01)

Designated contracting state (EPC)

AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR

DOCDB simple family (publication)

EP 2025408 A1 20090218; EP 2025408 B1 20181226; AU 2008207358 A1 20090305; AU 2008207358 B2 20130214; CN 101596477 A 20091209; CN 101596477 B 20111102; DE 102007038956 A1 20090226; DE 102007038956 B4 20140925; PL 2025408 T3 20190531

DOCDB simple family (application)

EP 08014048 A 20080806; AU 2008207358 A 20080815; CN 200810145663 A 20080815; DE 102007038956 A 20070817; PL 08014048 T 20080806