Release Notes

Description

This article describes the tools, functions and models available in the current release of Met Dynamics Models v2.0.2 (27 May, 2024).

For incremental changes, additions and improvements since the initial release of v2.0.0, please see Revision History.

Functionality

The table below outlines the functionality available in the Met Dynamics Models Microsoft Excel Add-In and Met Dynamics Models SysCAD Add-On interfaces.

For more information about SysCAD, please visit the SysCAD website.

Index of functions and models available with Met Dynamics Models v2.0.2

Excel Formula Name	SysCAD Unit	Description	Help
mdProps_MW		Returns molecular weight of Formula (e.g. "H2O")	Properties (Molecular Weight)
mdProps_BulkDensity_Evertsson		Returns the bulk density or packing fraction (v/v) of a polydisperse particulate stream using the Evertsson method	Properties (Bulk Density)
mdMineralogy_EMC		Element-to-Mineral Conversion. Returns the modal mineral composition of a sample with a given assay, least squares method	Element To Mineral Conversion
mdConvert_RetToCumPass		Converts quantity retained per interval to cumulative quantity passing	Conversions
mdConvert_CumPassToRet		Converts to cumulative quantity passing to quantity retained per interval	Conversions
mdConvert_ToMesh		Converts quantity retained distribution Dist1 from mesh (sieve) series Size1 to mesh series Size2, using linear (default) or cubic spline interpolation in linear-linear (default), log-linear or log-log scales	Conversions
mdConvert_ToGeoMeanSize		Converts mesh (sieve) series Size to its geometric mean size equivalent	Conversions
mdConvert_QvToQm		Converts a slurry stream volumetric flow rate to mass flowrate of solids and liquids	Conversions
mdInterp_Linear		Linear interpolation	Interpolation
mdInterp_CubicSpline		Cubic spline interpolation, with linear extrapolation at extents	Interpolation
mdDist_GaudinSchuhmann		Returns Gaudin-Schuhmann cumulative fraction passing size distribution	Distributions
mdDist_RosinRammler		Returns Rosin-Rammler cumulative fraction passing size distribution	Distributions
mdDist_Swebrec		Returns Swebrec (3 or 5 parameter) cumulative fraction passing size distribution	Distributions
mdPartition_WhitenBeta	Met Dynamics: Hydrocyclone	Returns partition to overflow calculated by Whiten-Beta equation	Partition (Size, Whiten-Beta)
mdPartition_WhitenWhite	Met Dynamics: Screen	Returns partition to oversize calculated by Whiten & White equation, with additions by Dehghani (2002) and Firth (2008)	Partition (Size, Whiten and White)
mdPartition_Pivot		Returns partition to sinks calculated by Pivot model equation	Partition (Density, Pivot)
mdPartition_StochasticRao		Returns partition to sinks calculated by Stochastic model equation (Rao, 2021)	Partition (Density, Stochastic)
mdSolLiq_Thickener_WilhelmNaide_UA		Returns Thickener Unit Area (L^2/(M/T)) for given underflow solids concentration (M/L^3), Wilhelm & Naide equation (1981)	Thickener (Wilhelm-Naide)
mdSolLiq_Thickener_WilhelmNaide_Cs		Returns Thickener underflow solids concentration (M/L^3) for a given Unit Area (L^2/(M/T)), Wilhelm & Naide equation (1981)	Thickener (Wilhelm-Naide)
mdMillSpeed_RPM		Returns tumbling mill rotational speed (rpm)	Tumbling Mill (Speed)
mdMillSpeed_FracCS		Returns tumbling mill fraction critical speed (frac)	Tumbling Mill (Speed)
mdMillPower_BondWI		Returns rod or ball mill power, Bond Work Index method	Comminution Circuit Specific Energy (Bond)
mdMillPower_HoggFuerstenau	Met Dynamics: Mill	Returns tumbling mill power, Hogg & Fuerstenau method	Tumbling Mill (Power, Hogg and Fuerstenau)
mdMillPower_MorrellE	Met Dynamics: Mill	Returns tumbling mill power, Morrell Empirical method	Tumbling Mill (Power, Morrell Empirical)
mdMillPower_MorrellC	Met Dynamics: Mill	Returns tumbling mill power, Morrell Continuum method	Tumbling Mill (Power, Morrell Continuum)
mdMillPower_MorrellD	Met Dynamics: Mill	Returns tumbling mill power, Morrell Discrete Shell method	Tumbling Mill (Power, Morrell Discrete Shell)
mdMillPower_HildenPowell	Met Dynamics: Mill	Returns tumbling mill power, Hilden & Powell (2018) method	Tumbling Mill (Power, Hilden and Powell)
mdMillPower_Nitta	Met Dynamics: Mill	Returns vertical stirred mill power, Nitta method	Stirred Mill (Power, Nitta)
mdMillPower_Heath		Returns High Intensity Grinding (HIG) mill power, Heath (2017) method	Stirred Mill (Power, Heath)
mdMillSlurryFlow_MorrellStephenson		Returns discharge flow rate of slurry (<xm + water) from a tumbling mill grate	Tumbling Mill (Slurry Flow)
mdMillMediaTrajectory	Met Dynamics: Mill	Computes the trajectory of a media element in a tumbling mill, Powell method	Tumbling Mill (Media Trajectory)
mdMillOverfilling_Arbiter	Met Dynamics: Mill	Returns flow limits for an overflow discharge tumbling mill, Arbiter (1990) method	Ball Mill (Overfilling)
mdMillOverfilling_Shi	Met Dynamics: Mill	Returns slurry residence time and flow limit for an overflow discharge tumbling mill, Shi (2016) method	Ball Mill (Overfilling)
mdMediaStrings	Met Dynamics: Mill	Returns distribution and properties of mixed media sizes at recharge equilibrium	Tumbling Mill (Media Strings)
mdSMC_AbToSMC		Returns SMC ore properties from JK Drop Weight Test and Bond parameters	Comminution Circuit Specific Energy (Morrell)
mdSMC_P80		Returns P80 for a given Specific Energy calculated using rearranged SMC equation	Comminution Circuit Specific Energy (Morrell)
mdSMC_W		Returns SMC Specific Energy for given input (generic equation)	Comminution Circuit Specific Energy (Morrell)
mdSMC_Wa		Returns SMC Coarse Particle Tumbling Mill Specific Energy (>750 um)	Comminution Circuit Specific Energy (Morrell)
mdSMC_Wb		Returns SMC Fine Particle Tumbling Mill Specific Energy (<750 um)	Comminution Circuit Specific Energy (Morrell)
mdSMC_Wc		Returns SMC Conventional Crushing Specific Energy	Comminution Circuit Specific Energy (Morrell)
mdSMC_Wh		Returns SMC HPGR Specific Energy	Comminution Circuit Specific Energy (Morrell)
mdSMC_Ws		Returns SMC Specific Energy Correction for Size Distribution	Comminution Circuit Specific Energy (Morrell)
mdTimeSeries_SMA		Returns Simple Moving Average with window width k	Time Series Analysis (Moving Average Filters)
mdTimeSeries_EMA		Returns Exponential Moving Average with smoothing parameter alpha	Time Series Analysis (Moving Average Filters)
mdTimeSeries_LRMA		Returns Linear Regression Moving Average with window width k	Time Series Analysis (Moving Average Filters)
mdTimeSeries_CUSUM		Returns CUSUM control chart data with optional tabular V-Mask out-of-control detection	Time Series Analysis (CUSUM)
mdNeuralNet_Train		Trains a multi-layer neural network	Neural Networks
mdNeuralNet_Process		Returns the predicted outputs for the given inputs, X, of the defined (trained) neural network	Neural Networks
mdUnit_Blasting_KCO		Blasting fragmentation prediction, Kuznetsov–Cunningham–Ouchterlony (Swebrec) formulation (2005)	Blasting (KCO)
mdUnit_Crusher_Whiten	Met Dynamics: Crusher	Crusher unit model, Whiten formulation	Crusher (Whiten)
mdUnit_HPGR_Daniel		High Pressure Grinding Rolls unit model, Daniel formulation	HPGR (Daniel)
mdUnit_HPGR_Torres		High Pressure Grinding Rolls unit model, Torres and Casali formulation	HPGR (Torres)
mdUnit_HPGR_Campos		High Pressure Grinding Rolls unit model, Campos (2021) modificatons to Torres formulation	HPGR (Campos)
mdUnit_AGSAG_Mutambo		Autogenous and Semi-Autogenous mill unit model, Mutambo variable rates formulation	AG/SAG Mill (Mutambo)
mdUnit_BallMill_PerfectMixing	Met Dynamics: Mill	Ball mill unit model, Perfect Mixing formulation	Ball Mill (Perfect Mixing)
mdUnit_BallMill_PerfectMixingRiDi	Met Dynamics: Mill*	Ball mill unit model, Perfect Mixing formulation with separate Ri and Di functions	Ball Mill (Perfect Mixing, Dynamic)
mdUnit_StirredMill_PerfectMixing	Met Dynamics: Mill	Vertical stirred mill unit model, Perfect Mixing formulation	Stirred Mill (Perfect Mixing)
mdUnit_StirredMill_PerfectMixingRiDi	Met Dynamics: Mill*	Vertical stirred mill unit model, Perfect Mixing formulation with separate Ri and Di functions	Stirred Mill (Perfect Mixing, Dynamic)
mdUnit_Mill_HerbstFuerstenau	Met Dynamics: Mill	Generic batch/rod/ball/stirred mill unit model, Herbst & Fuerstenau formulation	Mill (Herbst-Fuerstenau)
mdUnit_AirClassifier_Altun		Air classifier unit model, Altun (2014) formulation	Air Classifier (Altun)
mdUnit_Screen_Whiten		Multi-row vibrating screen unit model, Whiten & White, Dehghani and Firth formulation	Vibrating Screen (Whiten)
mdUnit_Screen_Metso		Multi-row vibrating screen unit model, Metso formulation	Vibrating Screen (Metso)
mdUnit_Screen_Karra	Met Dynamics: Screen	Vibrating screen unit model, Karra formulation	Vibrating Screen (Karra)
mdUnit_Screen_Mwale		Fine wet screen unit model, Mwale formulation	Fine Wet Screen (Mwale)
mdUnit_Hydrocyclone_Nageswararao	Met Dynamics: Hydrocyclone	Hydrocyclone unit model, Nageswararao formulation	Hydrocyclone (Nageswararao)
mdUnit_Hydrocyclone_NarasimhaMainza	Met Dynamics: Hydrocyclone	Hydrocyclone unit model, Narasimha-Mainza formulation	Hydrocyclone (Narasimha-Mainza)
mdUnit_Hydrocyclone_Plitt	Met Dynamics: Hydrocyclone	Hydrocyclone unit model, Plitt formulation	Hydrocyclone (Plitt)
mdUnit_Flotation_Savassi	Met Dynamics: Flotation	Flotation cell unit model, Savassi floatability component two phase formulation	Flotation Cell (Savassi)
mdUnit_Pump_King	Met Dynamics: Pump*	Simulates centrifugal slurry pump using the King characteristic curve formulation	Pump (Centrifugal, Slurry)

*Native SysCAD Dynamic model version available.