EP 1173280 B1 20031008 - METHOD FOR VERIFYING THE FILLING LEVEL OF COAL IN A BALL MILL
Title (en)
METHOD FOR VERIFYING THE FILLING LEVEL OF COAL IN A BALL MILL
Title (de)
VERFAHREN ZUR REGELUNG DES KOHLEFÜLLUNGSGRADES EINER KUGELMÜHLE
Title (fr)
PROCEDE POUR CONTROLER LE NIVEAU DE REMPLISSAGE EN CHARBON D'UN BROYEUR A BOULET
Publication
Application
Priority
- FR 0000880 W 20000407
- FR 9904737 A 19990415
Abstract (en)
[origin: US6619574B1] The method of monitoring the level of filling of a ball mill which is fed with material to be pulverized and is provided with a drum mounted to rotate on two bearings which are relatively far apart, consists in measuring the weight of the drum using strain gauge weight sensors (11-16) under the bearings supporting the drum of the ball mill and comparing the measured weight to a predefined set point value to regulate the feeding of material to be pulverized to the ball mill. In addition, before the comparison step, the measured weight is corrected by a first weight value (Fv) representative of the vertical component of the force created by the torque driving rotation of the drum.
IPC 1-7
IPC 8 full level
G01G 3/14 (2006.01); B02C 17/04 (2006.01); B02C 17/18 (2006.01); B02C 25/00 (2006.01); G01G 19/52 (2006.01)
CPC (source: EP US)
B02C 17/1805 (2013.01 - EP US); B02C 25/00 (2013.01 - EP US)
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
DOCDB simple family (publication)
US 6619574 B1 20030916; AT E251497 T1 20031015; AU 3825600 A 20001102; AU 754114 B2 20021107; CA 2365299 A1 20001026; CN 1207101 C 20050622; CN 1348398 A 20020508; CZ 20013710 A3 20020213; DE 60005811 D1 20031113; DE 60005811 T2 20040805; EP 1173280 A1 20020123; EP 1173280 B1 20031008; ES 2208296 T3 20040616; FR 2792224 A1 20001020; FR 2792224 B1 20010601; JP 2002542018 A 20021210; PL 195355 B1 20070928; PL 351555 A1 20030505; WO 0062935 A1 20001026; ZA 200107821 B 20021121
DOCDB simple family (application)
US 95848402 A 20020109; AT 00917148 T 20000407; AU 3825600 A 20000407; CA 2365299 A 20000407; CN 00806235 A 20000407; CZ 20013710 A 20000407; DE 60005811 T 20000407; EP 00917148 A 20000407; ES 00917148 T 20000407; FR 0000880 W 20000407; FR 9904737 A 19990415; JP 2000612065 A 20000407; PL 35155500 A 20000407; ZA 200107821 A 20010921