Bond Work Index Test Procedure for Determination of the Bond Ball Mill Work Index

2006 ◽  
pp. 680-682
Keyword(s):  
Ball Mill ◽  
Test Procedure ◽  
Index Test ◽  
Work Index ◽  
Bond Work Index

scholarly journals A Comparative Study of Energy Efficiency in Tumbling Mills with the Use of Relo Grinding Media

Metals ◽  
2021 ◽  
Vol 11 (5) ◽  
pp. 735
Author(s):  
Nikolay Kolev ◽  
Petar Bodurov ◽  
Vassil Genchev ◽  
Ben Simpson ◽  
Manuel G. Melero ◽  
...  
Keyword(s):  
Energy Efficiency ◽  
Test Procedure ◽  
Mining Industry ◽  
Slight Modification ◽  
Index Test ◽  
Grinding Media ◽  
Work Index ◽  
Mineral Sample ◽  
Tumbling Mills ◽  
Bond Tests

An evaluation of Relo grinding media (RGM, Reuleaux tetrahedron-shaped bodies) performance versus standard grinding media (balls) was made through a series of grinding tests, including a slight modification of the standard Bond test procedure. Standard Bond tests showed a reduction in the Bond ball mill work index (wi) of the mineral sample used in this study when using Relo grinding media. The modified Bond test procedure is based on using the standard Bond ball work index test but changing the circulating loads (350%, 250%, 150%, 100%). The comparative tests with RGM were carried out at the same number of revolutions as the grinding tests with balls at respective circulating load. The RGM charge yielded a 14% higher net undersize product than balls, which hints at improving energy efficiency and the potential for significant mining industry benefits.

Determination of the Bond work index of binary mixtures by different methods

2013 ◽  
Vol 123 ◽  
pp. 78-86 ◽  
Author(s):  
Barnabás Csőke ◽  
Ádám Rácz ◽  
Gábor Mucsi
Keyword(s):  
Binary Mixtures ◽  
Work Index ◽  
Bond Work Index

Determination of the Bond work index on samples of non-standard size

2012 ◽  
Vol 114-117 ◽  
pp. 48-50 ◽  
Author(s):  
Nedeljko Magdalinovic ◽  
Milan Trumic ◽  
Goran Trumic ◽  
Srdjana Magdalinovic ◽  
Maja Trumic
Keyword(s):  
Standard Size ◽  
Work Index ◽  
Bond Work Index

scholarly journals Determination of work index of Filin Kokuwa Gold Deposit in Toro Local Government, Bauchi State Nigeria

2021 ◽  
Vol 40 (3) ◽  
pp. 387-392
Author(s):  
D.M. Bwala ◽  
F. Abdulfattah ◽  
O.O. Alabi ◽  
B.O. Adewuyi
Keyword(s):  
Ball Mill ◽  
Reference Sample ◽  
Milling Machine ◽  
Ore Deposit ◽  
Gold Ore ◽  
Sieve Size ◽  
Work Index ◽  
Gold Ore Deposit ◽  
Reference Samples

This report shows the work index of Filin Kokuwa Gold ore sample in Bauchi State, Nigeria. The “reference sample (granites)” were sourced from outcrops of granites around Toro town. The samples were crushed, ground, and pulverized using appropriate laboratory milling machine. 80% passing size for the gold ore and granites samples were obtained at 100μm sieve size for the ball mill feeds and products respectively. The work indexes of reference samples i.e. granites were used to calculate the work index of the Filin Kokuwa gold ore sample. The values of 13.277kWh/ton and 15.192kWh/ton were obtained respectively for the two different reference granites samples used and 14.21kWh/ton as their average which is the value of the work index of the Filin Kokuwa gold ore deposit. The energy required for grinding the ore was found to be 3.581kW.

scholarly journals A Review of Alternative Procedures to the Bond Ball Mill Standard Grindability Test

Metals ◽  
2021 ◽  
Vol 11 (7) ◽  
pp. 1114
Author(s):  
Vladimir Nikolić ◽  
Gloria G. García ◽  
Alfredo L. Coello-Velázquez ◽  
Juan M. Menéndez-Aguado ◽  
Milan Trumić ◽  
...  
Keyword(s):  
Critical Analysis ◽  
Ball Mill ◽  
Review Paper ◽  
Alternative Methods ◽  
Test Duration ◽  
Computation Techniques ◽  
Work Index ◽  
Simulation Based ◽  
Bond Work Index ◽  
Alternative Procedures

Over the years, alternative procedures to the Bond grindability test have been proposed aiming to avoid the need for the standard mill or to reduce and simplify the grinding procedure. Some of them use the standard mill, while others are based on a non-standard mill or computation techniques. Therefore, papers targeting to propose a better alternative claim to improve validity, to reduce test duration, or to propose simpler and faster alternative methods for determining the Bond work index (wi). In this review paper, a compilation and critical analysis of selected proposals is performed, concluding that some of the short procedures could be useful for control purposes, while the simulation-based procedures could be interesting within a process digitalisation strategy.

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