Rotary grinding mill
The integration of torque sensors and a control unit in rotary grinding mills allows continuous monitoring of rotor wear, optimizing replacement timing and enhancing operational efficiency by measuring power dissipation across grinding rotors.
EP4755513A1Pending Publication Date: 2026-06-10MINERAL PROCESS CONSULTING GMBH
Patent Information
- Authority / Receiving Office
- EP · EP
- Patent Type
- Applications
- Current Assignee / Owner
- MINERAL PROCESS CONSULTING GMBH
- Filing Date
- 2024-12-03
- Publication Date
- 2026-06-10
Smart Images
Figure IMGAF001_ABST
Abstract
The present application relates to a rotary grinding mill. The rotary grinding mill comprises a mill housing, a drive shaft rotatably arranged within the mill housing and a mill drive coupled to the drive shaft at a first end thereof in order to drive the drive shaft in rotation. A plurality of grinding rotors are arranged on the drive shaft, the grinding rotors being spaced apart from each other along a length of the drive shaft. At least one torque sensor is arranged on the drive shaft on both sides of each grinding rotor, each torque sensor measuring a torque exerted on the drive shaft during a rotation thereof. Each torque sensor is electrically connected to a control unit of the rotary grinding mill, the control unit being configured to calculate a power dissipated by each of the grinding rotors to a grinding mix contained within the mill housing based on the difference of the measured torque exerted on the drive shaft on both sides of each of the grinding rotors.
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