TY - JOUR
ID - 180
TI - A developed approach based on grinding time to determine ore comminution properties
JO - Journal of Mining and Environment
JA - JME
LA - en
SN - 2251-8592
AU - Saeidi, Negar
AU - Azizi, Dariush
AU - Noaparast, Mohammad
AU - Aslani, Soheila
AU - Ramadi, R
AD - University of Tehran- Faculty of Mining Engineering
AD - University of Tehran - Faculty of Mining Engineering
AD - School of Mining Engineering, College of Engineering, University of Tehran, Iran
AD - Mining Engineering Department, University College of Engineering, University of Tehran, Iran
Y1 - 2013
PY - 2013
VL - 4
IS - 2
SP - 105
EP - 112
KW - iron ore
KW - chadormalu
KW - Work Index
KW - comminution properties
KW - selection function
KW - Energy Efficiency
DO - 10.22044/jme.2013.180
N2 - In this paper, iron ore sample from the Chadormalu was investigated to determine some comminution properties. Chadormalu deposit is one of the largest iron ore mine in Iran, which is located in Yazd province. The representative ore sample contained 57%Fe, 0.9%P and 0.17%S. The sample was crushed; afterward, it was ground in various grinding times according to the Bond Ball mill approach to specify the work index values. Based on different grinding times and the obtained results, a new work index equation was then simulated through which grinding time was considered as the main variable. The relationships between work index, the work input and P80 were then concluded. In addition, the results of tests were then used to estimate the selection function parameter. A new equation was applied to determine energy efficiency which could be implemented for energy consumption calculation. Two equations for EB and EB/Elimit were then obtained, where EB is the efficiency of comminution, and the ELimit is the maximum limiting energy efficiency for particle fracture under compressive loading. These equations could estimate the parameters of the iron ore would be precisely estimated. Indeed, by means of work index value; some crushing and grinding characteristics of the taken sample were assessed by which comminution circuit would be designed much better.
UR - https://jme.shahroodut.ac.ir/article_180.html
L1 - https://jme.shahroodut.ac.ir/article_180_631f3a5271ac5d2fa7e31b00d4d40ef7.pdf
ER -