Verfahren zur Überwachung und Steuerung eines Mischbetriebs

Details

Veröffentlichungs-Nr.

EP3505236

Aktenzeichen

EP17210688

Anmeldetag

27. Dezember 2017

Veröffentlichung

30. September 2020

Erteilung

30. September 2020

Rechtsraum

EP

IPC

B01F15/00B01F7/00

Abstract

The invention relates to a mixer machine assembly (1) and to a method for monitoring drive shaft assembly load of a mixer machine assembly. The mixer machine assembly comprises: a drive unit (2) that is part of the mixer machine, said drive unit (2) comprising an electric motor (7) and a drive shaft assembly (8) connected to and driven in rotation by said electric motor (7) during operation of the mixer machine assembly (1), a propeller (3) that is part of the mixer machine, said propeller (3) comprising a hub (15) connected to a propeller shaft (12) of the drive shaft assembly (8) and a plurality of blades (16) connected to said hub (15), wherein the propeller shaft (12) extends in an axial direction (Z) and the blades (16) extends in a radial direction, and a control unit (4) that is operatively connected to the electric motor (7), the control unit (4) being configured for monitoring and controlling the operation of the mixer machine. The method being characterized by the steps of: monitoring, by means of the control unit (4), a drive shaft torque (Tz) about a drive shaft (11) of the drive shaft assembly (8), determining, by means of the control unit (4), an average drive shaft torque range (ATzR) based on at least one drive shaft torque range (TzR), wherein each drive shaft torque range (TzR) is equal to the difference between the highest drive shaft torque value (Tz) about the drive shaft (11) and the lowest drive shaft torque value (Tz) about the drive shaft (11) detected during a predetermined angle of rotation (a) of the propeller (3) during operation of the mixer machine assembly (1), and comparing, by means of the control unit (4), the determined average drive shaft torque range (ATzR) with a predetermined torque range limit value (TzR).

Anmelder

Firmen

Xylem Europe GmbH
Xylem IP Management S.à.r.l.

Land

🇨🇭 Schweiz

Fachgebiete