Zhang, ZX., Sanchidrián, J.A., Ouchterlony, F. et al. Reduction of Fragment Size from Mining to Mineral Processing: A Review. Rock Mech Rock Eng 56, 747–778 (2023). https://doi.org/10.1007/s00603-022-03068-3
Reduction of fragment size from mining to mineral processing : a review
|Author:||Zhang, Zong-Xian1; Sanchidrián, José A.2; Ouchterlony, Finn3;|
1Oulu Mining School, University of Oulu, Oulu, Finland
2ETSI Minas y Energía, Universidad Politécnica de Madrid, Madrid, Spain
3Department of Mining Engineering, Montanuniversitaet Leoben, Leoben, Austria
|Online Access:||PDF Full Text (PDF, 3.7 MB)|
|Persistent link:|| http://urn.fi/urn:nbn:fi-fe2023040535142
|Publish Date:|| 2023-04-05
The worldwide mining industry consumes a vast amount of energy in reduction of fragment size from mining to mineral processing with an extremely low-energy efficiency, particularly in ore crushing and grinding. Regarding such a situation, this article describes the effects of rock fragmentation by blasting on the energy consumption, productivity, minerals’ recovery, operational costs in the whole size reduction chain from mining to mineral processing, and the sustainability of mining industry. The main factors that influence rock fragmentation are analysed such as explosive, initiator, rock, and energy distribution including blast design, and the models for predicting rock fragmentation are briefly introduced. In addition, two important issues—fines and ore blending—are shortly presented. Furthermore, the feasibility of achieving an optimum fragmentation (satisfied by a minimum cost from drilling-blasting to crushing-grinding, maximum ore recovery ratio, high productivity, and minimum negative impact on safety and environment) is analysed. The analysis indicates that this feasibility is high. Finally, the measures and challenges for achieving optimum fragmentation are discussed.
Rock mechanics and rock engineering
|Pages:||747 - 778|
|Type of Publication:||
A2 Review article in a scientific journal
|Field of Science:||
222 Other engineering and technologies
This research was supported by University of Oulu in Finland, Universidad Politécnica de Madrid in Spain, and Montanuniversitaet Leoben in Austria. Open Access funding provided by University of Oulu including Oulu University Hospital.
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