Global Patent Index - EP 1238707 A2

EP 1238707 A2 2002-09-11 - Agitator mill with toroidal crushing gap

Title (en)

Agitator mill with toroidal crushing gap

Title (de)

Rührwerksmühle mit torusförmigem Mahlspalt

Title (fr)

Broyeur agitateur avec fente de broyage toroidale

Publication

EP 1238707 A2 (DE)

Application

EP 02000644 A

Priority

DE 10110652 A

Abstract (en)

The ball mill has a grinding gap (4) formed by the spaced out toroid boundary surfaces of the rotor (3) and the housing (1, 2). This means that the suspension and the grinding balls can align themselves freely in this annular cross section at any rate of revolution of the ball mill, thus reducing friction considerably.

Abstract (de)

Die Erfindung betrifft eine Rührwerksmühle zur Behandlung, insbesondere Mahlung und Dispergierung von fließfähigem Mahlgut. Es wird eine Mahlraum- und Rührwerksgestaltung vorgeschlagen, bei der hohe Verpressungen von Mahlkugeln weitgehend vermieden werden und dadurch der Verschleiß verringert ist. Dies wird durch einen Mahlspalt (4) erreicht, der durch zwei beabstandete, im wesentlichen torusförmige Begrenzungsflächen von Rotor (3) und Gehäuse (1,2) gebildet wird. Aufgrund der erfindungsgemäßen Mahlraumgeometrie können sich die Suspension und die Mahlkörper in einem kreisringförmigen Querschnitt bei jeder Drehzahl des Rührwerkes frei ausrichten, wodurch es zu einer sehr gleichmäßigen Verpressung der Mahlkugeln kommt. <IMAGE>

IPC 1-7 (main, further and additional classification)

B02C 17/16; B02C 17/18; B02C 17/22

IPC 8 full level (invention and additional information)

B02C 17/16 (2006.01); B02C 17/18 (2006.01); B02C 17/22 (2006.01)

CPC (invention and additional information)

B02C 17/22 (2013.01); B02C 17/161 (2013.01); B02C 17/166 (2013.01); B02C 17/1815 (2013.01)

Citation (applicant)

Designated contracting state (EPC)

AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR

EPO simple patent family

EP 1238707 A2 20020911; EP 1238707 A3 20030402; EP 1238707 B1 20040512; AT 266477 T 20040515; DE 10110652 A1 20020926; DE 10110652 B4 20040129; ES 2218474 T3 20041116

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