International Journal of Mineral Processing, 74, 133 141. The model predicts the total comminution energy of most types of plant that contain conventional crushers, High Pressure Grinding Rolls (HPGR) and wet tumbling mills such as Autogenous (AG) Semi autogenous (SAG), rod and ball mills.
where E m (SP) is the specific energy required to produce a product of a given median size X 50 by single particle comminution and E m (Mill) is the specific energy to produce the same median size in a comminution machine, such as a ball mill. This means that the energy efficiency of a comminution device can be assessed as to how closely the performance of the device approaches single particle
tional ball mills (fine particles) it is labelled Mib, W is the specific comminution energy at pinion (kWh/t), x 2 is the 80% passing size for the product ( m) and x 1 is the 80% passing size for the feed ( m).  The work index related to the breakage property of an
Energy efficient comminution circuits ... specific energy, while achieving a finer prod uct, than other secondary crushers. The MP1250s higher capacity and energy ... ciently than ball mills processing feeds as coarse as 6 mm to products finer than 15 microns. The higher grinding efficiency,
A comprehensive Australia wide survey of comminution energy consumption at ... by the authors at the 11th AusIMM Mill Operators' Conference 2012. ... The first case study indicated that a large reduction in size specific energy ... and ball mill circuits to include high pressure grinding roll and stirred mills. ... Format, PDF. Get Price
Comminution Specific Energy. Mia kWh/tonne 19.4 Mic kWh/tonne 7.4 Mih kWh/tonne 14.2 Bond Wib kWh/tonne 15.1 Mia kWh/tonne 19.4 Mic kWh/tonne 7.4 Mih kWh/tonne 14.2 Bond Wib kWh/tonne 15.1.
For tumbling mills the specific comminution energy (Wi) relates to the power at the pinion or for gearless drives the motor output. For HPGRs it is the energy inputted to the rolls, whilst for conventional crushers Wi relates to the specific energy as determined using the motor input power less the no load power.
specific comminution energy of ball mills 2014 pdf. Comminution, particularly milling, is on average the largest consumer of energy in mining. .. firstly predicted using the SAG mill feed F80 and the ball mill . power consumption and/or specific energy in actual SAG mills,.
The results suggest that in a ball mill, ..... 4.8 Specific Energy as a function of mass fraction . ..... with the specific comminution energy. The effect of processing parameters on energy consumption of ball ...
specific comminution energy of ball mills 2012 pdf. Ball mill Wikipedia, the free encyclopedia A ball mill is a type of grinder used to grind materials into extremely fine powder for use . Comminution processes: Basics and application to, Contact Supplier. Comminution '08 min eng .