Development of a preliminary media wear measurement test procedure for cement ball milling applications


ÇOLAK S. S. , ALTUN O. , BENZER A. H. , GENCER Z., KOÇAK H.

POWDER TECHNOLOGY, cilt.325, ss.678-686, 2018 (SCI İndekslerine Giren Dergi) identifier identifier

  • Cilt numarası: 325
  • Basım Tarihi: 2018
  • Doi Numarası: 10.1016/j.powtec.2017.11.033
  • Dergi Adı: POWDER TECHNOLOGY
  • Sayfa Sayıları: ss.678-686

Özet

The paper initially focusses on developing a test procedure for measuring the wear of grinding balls and then correlating the results with the wear obtained in industrial scale cement ball milling applications. The cost of grinding media is one of the major items and it needs to be optimized by testing different types of media. Since industrial scale trials are time consuming, there is a need for an easy, accurate and fast media wear testing procedure for cement ball milling applications. Such a procedure enables cement plants to compare wear results of different types of media and choose the optimal one for the economy of the grinding operation. Within the scope of the study, 6 types of 30 mm media having different chemical compositions were subjected to wear measurements at different time intervals by utilizing laboratory scale ball mills. The studies showed that reproducible results can be obtained from the test apparatus hence the methodology is said to be consistent. The wear results concluded that the order of the media wear from the highest to the lowest was the same independent of the mill dimension and whether the material is inside the mill. The results also implied that the chemical composition or the microstructure of the media was an influencing parameter on the wear therefore there is room for improvement with regards to the quality of media. This study proved that the media wear measured at industrial scale cement ball mills was in good agreement with the laboratory scale results. (C) 2017 Elsevier B.V. All rights reserved.