1. |
- Ahmadi, R., et al.
(author)
-
Rapid determination of Bond rod-mill work index by modeling the grinding kinetics
- 2013
-
In: Advanced Powder Technology. - : Elsevier BV. - 0921-8831 .- 1568-5527. ; 24:1, s. 441-445
-
Journal article (peer-reviewed)abstract
- Generally, Bond work index is a common method for selecting comminution equipment as well as estimation of grinding efficiency and calculating required power. In the current research, a simple, fast and accurate procedure is introduced to find the rod-mill work index based on the conventional Bond work index. The grinding experiments were carried out on four typical samples of iron, copper, manganese and lead–zinc ore with three test-sieves in specified time periods and aimed to shortening the procedure. Furthermore, the grinding kinetics and mass balance equations were applied to model the standard Bond rod-mill work index. For comparing the standard Bond rod-mill work index and the new modeled method, work index (Wi) and produced fine particles in a cycle (Gi) for the four samples determined. The performed paired Student’s t-test results indicated that the Standard Deviation for Gi and Wi obtained by the shortened method are respectively 0.50 and 0.58 in respect of traditional Bond method.
|
|