Template:SysCAD (Page, Ball Mill, Perfect Mixing, Mill)

Mill page

The Mill page is used to specify the input parameters for the mill model.

Tag (Long/Short)	Input / Display	Description/Calculated Variables/Options
PerfectMixing
HelpLink		Opens a link to this page using the system default web browser. Note: Internet access is required.
Requirements
NumParallelUnits	Input	The number of parallel, identical units to simulate: Feed is divided by the number of parallel units before being sent to the unit model. Unit model product is multiplied back by the same value and returned to the SysCAD product stream. All unit model result values are shown per parallel unit.
MediaStringsP50	CheckBox	Only visible if the MediaStrings option is checked. Replaces the BallSize.Sim user defined value with the MediaSize (All) value from the MediaStrings page. The value of BallSize.Orig should be determined on the same basis for correct scaling of a changed media charge.
Ball
Diameter	Input	The inside liner diameter of the original and simulated ball mills.
BellyLength	Input	The inside liner belly length of the simulated ball mill, excluding cones.
ConeAngle	Input	Angle of the feed and discharge end cones, measured as positive displacement from the vertical direction.
TrunnionDiameter	Input	The inside liner trunnion diameter of the simulated ball mill.
LoadFrac	Input	The volumetric load fraction of the original and simulated ball mills.
FracCS	Input	The fraction critical speed of the original and simulated ball mills.
WorkIndex	Input	Bond Ball Work Index of ore in the original mill.
BallSize	Input	Characteristic diameter of balls in original and simulated ball mills.
MaxBreakageRateFactor / K	Input	Parameter relating ball size and the size at which the breakage rate per discharge rate is maximum.
R/DFunction
NumSplineKnots	Input	Number of spline knots for the $R_{i}/D_{i}^{*}$ function.
Size	Input	Spline knot size positions.
Ln(R/D*)	Input	Values of $\ln R/D^{*}$ at each spline knot position.
Power
BallVolume	Input	Volumetric fraction of mill occupied by balls and voids.
VoidFillFraction	Input	Volumetric fraction of void space between balls occupied by slurry.
BallSG	Input	Specific Gravity or density of ball media.
Results
MillVolume	Display	Volume inside mill, including cones.
MillSpeed	Display	Rotational speed of simulated mill.