Effect of increased ball mill feed on steel construction

The article discusses feasibility of enhancing drum mill capacity owing to increased ball feed. The increase in the ball mill feed over the manufacturer’s specifications can raise loads on steel structures of the mill and its drive. Thus the adequate investigation is required to be undertaken. The strength check calculations of the mill body components and the tooth ring are implemented using the finite element method in APM WinMachine’s CAE, in module Structure 3D. The test elements were modeled in CAD. The pre-processing preparation was performed in APM АПМ Studio, including generation of 3D finite element mesh. This article presents the equations for mill steelwork forces, which, in aggregate, provide the loading model. The procedure of selecting calculation parameters is described. The calculations performed for steel structures of the body and tooth ring of mill MMPS 7.0×5.2 real the feasible increase in the ball feed of the mill by 15% as against its specifications. The strength of the mill assemblies under the increased loading is preserved. For coming to a final conclusion, it is necessary to study drive capacities.

Lagunova Yu. A., Shestakov V. S., Savinova N. V., Mukatov A. R. Effect of increased ball mill feed on steel construction . MIAB. Mining Inf. Anal. Bull. 2021;(11-1):171—178.

Lagunova Yu. A.¹, Dr. Sci. (Eng.), professor, department of Mining machines and complexes, e-mail: yu.lagunova@mail.ru;
Shestakov V. S.¹, Cand. Sci. (Eng.), professor, department of Mining machines and complexes;
Savinova N. V.¹, Cand. Sci. (Eng.), associate professor department of Mining machines and complexes
Mukatov A. R.¹, graduate student department of Mining machines and complexes;
¹ Ural State Mining University, Yekaterinburg, Russia.

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