TY - JOUR
ID - 897
TI - A novel approach to optimize grinding circuits- modelling strategy to monitor ball mill particle size distribution data at Lakan plant
JO - Iranian Journal of Science and Technology Transactions of Mechanical Engineering
JA - IJSTM
LA - en
SN - 2228-6187
Y1 - 2011
PY - 2011
VL - 35
IS - 1
SP - 221
EP - 236
KW - Monitoring
KW - Modeling
KW - Optimization
KW - size distribution
KW - Ball Mill
KW - Lakan
DO - 10.22099/ijstm.2011.897
N2 - Online monitoring and control of size distribution in any grinding circuit is a vital task in mineral processing plants. Flotation process efficiency depends on the size of feed materials and also fraction of the fine particles e.g. -38 microns. This paper presents a new approach to monitor the size distribution of Lakan Pb/Zn flotation circuit in Iran. A software monitoring size distribution has been developed, based on two main parameters named "n" which is reduction ratio in the mill and "b" which comes from Guadin equation, i.e. W=aDb. "n" depends on mill characters and feed function while "b" depends on ore, instruments, and other properties. Liberation and size fraction studies showed that the d80 of ground material should be -74 microns and weight of passing 38 microns materials should be 35-40%, which is the optimum condition for the flotation recovery. Finally, results obtained from ball mill circuit for "n" and "b" indicated that these parameters were equal to "nBall Mill=80-87" and "bBall Mill=0.84-1.1" at optimum condition. Under this condition, flotation recovery increases up to 75%, which is practically confirmed in Lakan flotation plant.
UR - http://ijstm.shirazu.ac.ir/article_897.html
L1 - http://ijstm.shirazu.ac.ir/article_897_0f1cc7d9dedb631345d090c987262f93.pdf
ER -