Variability Study of Bond Work Index and Grindability Index on Various Critical Metal Ores

被引：12
|
作者：
Garcia, Gloria G. [1 ]
Oliva, Josep [2 ]
Guasch, Eduard [2 ]
Anticoi, Hernan [3 ]
Coello-Velazquez, Alfredo L. [4 ]
Menendez-Aguado, Juan M. [1 ]
机构：
[1] Univ Oviedo, Escuela Politecn Mieres, Gonzalo Gutierrez Quiros 33600, Mieres, Spain
[2] Univ Politecn Catalunya Barcelona Tech, Dept Engn Minera Ind & TIC, Av Bases Manresa, Manresa 08242, Spain
[3] Univ Cantabria, Escuela Politecn Ingn Minas & Energia, Ronda Rufino Peon 39316, Torrrelavega, Spain
[4] Univ Moa Dr Antonio Nunez Jimenez, CETAM, Moa 83300, Cuba
来源：
METALS | 2021年 / 11卷 / 06期
基金：
欧盟地平线“2020”;
关键词：
grindability; comminution; Bond work index; BALL MILL; COMMINUTION; PREDICTION; SIMULATION; KINETICS; PENOUTA;
D O I：
10.3390/met11060970
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
It is a well-known fact that the value of the Bond work index (w(i)) for a given ore varies along with the grinding size. In this study, a variability bysis is carried out with the Bond standard grindability tests on different critical metal ores (W, Ta), ranging from coarse grinding (rod mills) to fine grinding (ball mills). The relationship between w(i) and grinding size did not show a clear correlation, while the grindability index (gpr) and the grinding size showed a robust correlation, fitting in all cases to a quadratic curve with a very high regression coefficient. This result suggests that, when performing correlation studies among ore grindability and rock mechanics parameters, it is advised to use the grindability index instead of the Bond work index.
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收藏
页数：11
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