Correlation Between Power and Lifters Forces in Grinding Mills
| Autor: | M. Anibal Valenzuela, Venegas P. Jose, Molina V. Cristian |
|---|---|
| Rok vydání: | 2019 |
| Předmět: |
Mechanical engineering
02 engineering and technology 010501 environmental sciences 01 natural sciences Industrial and Manufacturing Engineering Discrete element method 020501 mining & metallurgy Power (physics) Grinding 0205 materials engineering Control and Systems Engineering Mill Torque Electrical and Electronic Engineering Synchronous motor Strain gauge Induction motor 0105 earth and related environmental sciences Mathematics |
| Zdroj: | IAS |
| ISSN: | 1939-9367 0093-9994 |
| DOI: | 10.1109/tia.2019.2910713 |
| Popis: | Using a discrete element method (DEM) software, this paper develops a methodology to obtain the forces acting on each face of the lifters and on the liner plates of a grinding mill and its correlation to the mill torque and power. This analysis gives a clear view of the contribution of each lifter face to the torque and power. A pilot mill with a transparent cover charged with steel and aluminum balls is simulated in DEM, obtaining the forces in the lifters faces and the resulting torque and power. This power is compared to the power released by the DEM software and the power obtained from the strain gauge installed in the pilot mill. Results show an almost perfect matching between the power from the lifters forces and the DEM power, and a small error compared to the measured torque and power. The analysis of the shape, magnitude, and position of force pulses acting on the front and back faces of the lifters for different mill filling and speed is correlated to the power curves and gives a physical explanation of the shape and variations of the power. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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