Reducing cost in the mineral concentration plant is said to be primarily dependent on
reduction of comminution cost especially grinding cost since comminution is the most cost-intensive
unit process in the mineral processing plant. In turn, it is known that in the long term consideration,
over 70% of comminution cost goes into providing energy; thus, reducing energy cost is expected
to reduce the overall concentration cost significantly. This article considers the various
relationships between size reduction and energy consumption in most comminution circuits, reviews
the various factors that affect energy utilization efficiency in comminution, developed models that
integrated the various inefficiency factors in grinding and applied these models to determine the
energy required for comminution using a software, ProMax2100, into which some of the energy
models have been incorporated. The results show that for the same equipment size, product and
feed requirements, a 2-stage crushing and 3-stage grinding circuit gives a difference of 2,347kWh
in the energy calculated using Bond’s model only and that obtained with the use of applicable
inefficiency factors with Bond’s energy.
PAPER TITLE :FACTORIAL MODELS FOR DETERMINING THE ACTUAL ENERGY REQUIRED IN ORE COMMINUTION WITH PROMAX2100 APPLI
JOURNAL Of SUSTAINABLE TECHNOLOGY | VOLUME 1 NUMBER 5 2014
Paper Details
- Author(s) : AJAKA, E.O. and AKANDE, J. M.
- Abstract:
