Stream Analyser

Description

The Stream Analyser is a SysCAD Control model used to analyse existing material streams and report Composition by Size, Recovery, and Circulating Load results.

The Stream Analyser does not require material stream connections. Instead, each calculation references existing material streams elsewhere in the flowsheet by stream tag. The selected streams are read for calculation purposes only and are not modified by the model.

Model theory

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Composition by Size

Recovery

Circulating Load

SysCAD

The sections and variable names used in the SysCAD interface are described in detail in the following tables.

MD_StreamAnalyser page

The first tab page in the access window will have this name.

Tag (Long/Short)	Input / Display	Description/Calculated Variables/Options
Tag	Display	This name tag may be modified with the change tag option.
Condition	Display	OK if no errors/warnings, otherwise lists errors/warnings.
ConditionCount	Display	The current number of errors/warnings. If condition is OK, returns 0.
GeneralDescription / GenDesc	Display	This is an automatically generated description for the unit. If the user has entered text in the 'EqpDesc' field on the Info tab (see below), this will be displayed here. If this field is blank, then SysCAD will display the unit class ID.
Requirements
On	CheckBox	Enables the Stream Analyser. If this box is not checked, all calculation pages display an Off Status and no results are calculated.
CalcCount	Input	Number of calculation pages. A value from 0 to 16 may be specified. Pages are named Calc1 to Calc16.

Calc1 to Calc16 pages

One calculation page is displayed for each page selected with CalcCount. Each page is configured independently. The fields and result structures displayed depend on the selected Type.

Status messages containing the abbreviation PSD reproduce the wording displayed by SysCAD; in these messages, PSD means particle size distribution. Numbered Status messages below use representative source-field numbers; SysCAD displays the numbers of the fields that caused the message.

Tag (Long/Short)	Input / Display	Description/Calculated Variables/Options
Calculation
On	CheckBox	Enables the calculation. The Stream Analyser On field must also be checked.
Name	Input	Optional user-defined name displayed in the Summary table.
Type	Composition by Size	Displays composition, distribution by size, and stream contribution results for one selected stream.
	Recovery	Calculates recovery from one or more Feed streams to one or more Concentrate streams.
	Circulating Load	Calculates the ratio of one Circulating stream to one Reference stream.
StreamTag	Input	Only visible when Composition by Size is selected. Tag of the stream to be analysed.
FeedTag1, FeedTag2, ...	Input	Only visible when Recovery is selected. Tags of the streams included in the combined Feed source group. At least one FeedTag is required. Additional fields appear progressively, up to FeedTag32.
ConcentrateTag1, ConcentrateTag2, ...	Input	Only visible when Recovery is selected. Tags of the streams included in the combined Concentrate source group. At least one ConcentrateTag is required. Additional fields appear progressively, up to ConcentrateTag32.
ReferenceTag	Input	Only visible when Circulating Load is selected. Tag of the Reference stream used as the denominator of the circulating-load ratio.
CirculatingTag	Input	Only visible when Circulating Load is selected. Tag of the Circulating stream used as the numerator of the circulating-load ratio.
CalcWhen	OnDemand	Uses current stream values. Composition by Size values are calculated when requested. Recovery and Circulating Load result tables are refreshed during a Solve.
	OnStop	Calculates once when a Solve stops.
	Manual	Calculates only when the Calculate button is pressed.
Calculate	Button	Only visible when Manual is selected. Calculates results using the current source stream values when both the Stream Analyser and the calculation page are enabled.
Status	Off	The Stream Analyser or calculation page is disabled. Check both On fields to enable the calculation.
	OK	The source configuration is valid and the current results are available, or can be calculated on demand. No corrective action is required.
	Solve to Calculate	The OnDemand Recovery or Circulating Load results have not yet been refreshed. Solve the project.
	Solve and Stop to Calculate	The calculation uses OnStop timing and has not yet been calculated. Solve the project and then stop the solver.
	Press Calculate	The calculation uses Manual timing and has not yet been calculated. Press the Calculate button.
	StreamTag Required	No StreamTag is entered for a Composition by Size calculation. Enter a source stream tag.
	ReferenceTag Required	No ReferenceTag is entered for a Circulating Load calculation. Enter the Reference stream tag.
	CirculatingTag Required	No CirculatingTag is entered for a Circulating Load calculation. Enter the Circulating stream tag.
	Enter at least one FeedTag	No Feed stream is selected for a Recovery calculation. Enter at least one FeedTag.
	Enter at least one ConcentrateTag	No Concentrate stream is selected for a Recovery calculation. Enter at least one ConcentrateTag.
	StreamTag: Enter valid stream tag	The StreamTag does not resolve to a valid SysCAD stream. Correct or replace the tag.
	ReferenceTag: Enter valid stream tag	The ReferenceTag does not resolve to a valid SysCAD stream. Correct or replace the tag.
	CirculatingTag: Enter valid stream tag	The CirculatingTag does not resolve to a valid SysCAD stream. Correct or replace the tag.
	FeedTag2: Enter valid stream tag	The numbered FeedTag does not resolve to a valid SysCAD stream. Correct or replace the tag.
	ConcentrateTag1: Enter valid stream tag	The numbered ConcentrateTag does not resolve to a valid SysCAD stream. Correct or replace the tag.
	StreamTag: Select valid PSD stream	The selected stream does not contain a valid particle size distribution. Select a stream with valid particle size distribution data.
	ReferenceTag: Select valid PSD stream	The selected Reference stream does not contain a valid particle size distribution. Select a stream with valid particle size distribution data.
	CirculatingTag: Select valid PSD stream	The selected Circulating stream does not contain a valid particle size distribution. Select a stream with valid particle size distribution data.
	FeedTag2: Select valid PSD stream	The numbered Feed stream does not contain a valid particle size distribution. Select a stream with valid particle size distribution data.
	ConcentrateTag1: Select valid PSD stream	The numbered Concentrate stream does not contain a valid particle size distribution. Select a stream with valid particle size distribution data.
	FeedTag2 duplicates FeedTag1	The same stream is entered more than once in the Feed source group. Remove or replace one duplicate tag.
	ConcentrateTag2 duplicates ConcentrateTag1	The same stream is entered more than once in the Concentrate source group. Remove or replace one duplicate tag.
	ConcentrateTag1 also used as FeedTag1	The same stream is used in both Recovery source groups. Select distinct Feed and Concentrate streams.
	FeedTag2: PSD must match FeedTag1	The numbered Feed stream uses a different particle size distribution from the first valid Feed stream. Select a stream with the same particle size distribution definition.
	ConcentrateTag1: PSD must match FeedTag1	The numbered Concentrate stream uses a different particle size distribution from the first valid Feed stream. Select a stream with the same particle size distribution definition.
	CirculatingTag: PSD must match ReferenceTag	The Circulating and Reference streams use different particle size distributions. Select streams with the same particle size distribution definition.
	Check source tags: Concentrate exceeds Feed	The combined Concentrate mass exceeds the combined Feed mass for at least one solid species and size interval. Correct the source selection or the upstream mass balance.
	Composition Size Calculation Unavailable	The Composition by Size result table is not configured for the particle size distribution of the current source. Stop the project, confirm the StreamTag, and reselect the source or calculation Type.
	Recovery Calculation Unavailable	The Recovery result table is not configured for the particle size distribution of the current source. Stop the project, confirm all source tags use the same particle size distribution, and reselect a source or the calculation Type.
	Circulating Load Calculation Unavailable	The Circulating Load result table is not configured for the particle size distribution of the current source. Stop the project, confirm both source tags use the same particle size distribution, and reselect a source or the calculation Type.
	Composition Size Calculation Failed	The Composition by Size results could not be completed. Check the source stream values and particle size distribution configuration, then reconfigure and recalculate. Report the issue if it persists with valid source data.
	Recovery Calculation Failed	The Recovery results could not be completed. Check the source stream values and particle size distribution configuration, then reconfigure and recalculate. Report the issue if it persists with valid source data.
	Circulating Load Calculation Failed	The Circulating Load results could not be completed. Check the source stream values and particle size distribution configuration, then reconfigure and recalculate. Report the issue if it persists with valid source data.
Distribution
Name	Display	Shows the name of the SysCAD Size Distribution (PSD) quality associated with the feed stream.
IntervalCount	Display	Shows the number of size intervals in the SysCAD Size Distribution (PSD) quality associated with the feed stream.
SpWithPSDCount	Display	Shows the number of species in the feed stream assigned with the SysCAD Size Distribution (PSD) quality.
CSz
Property	Composition	Displays the mass fraction of each species, component, element, or individual phase within each size interval. The All row displays the overall composition over all size intervals.
	Distribution by Size	Displays the fraction of each constituent's total mass that occurs in each size interval. The All column displays the distribution by size of all solids with a particle size distribution property in the selected stream.
	Stream Contribution	Displays each constituent and size interval mass as a fraction of the total mass of all solids with a particle size distribution property in the selected stream.
Comp
Size	Display	Size of each interval in the mesh series.
All (All column)	Display	Total composition of all solids with a particle size distribution property in each size interval. The result is 100% when the interval contains solids with a particle size distribution property and 0 when it does not.
Comp	Display	Mass fraction of each solid species with a particle size distribution property within each size interval.
All (All row, All column)	Display	Total composition of all solids with a particle size distribution property over all size intervals. The result is 100% when the selected stream contains solids with a particle size distribution property and 0 when it does not.
All (All row, per species)	Display	Overall mass fraction of each solid species with a particle size distribution property in the selected stream for all size intervals.
CmpComp
Components		Hides or shows the component composition table.
Size	Display	Size of each interval in the mesh series.
All (All column)	Display	Total composition of all solids with a particle size distribution property in each size interval. The result is 100% when the interval contains solids with a particle size distribution property and 0 when it does not.
CmpComp	Display	Mass fraction of each displayed solid component within each size interval.
All (All row, All column)	Display	Total composition of all solids with a particle size distribution property over all size intervals.
All (All row, per component)	Display	Overall mass fraction of each displayed solid component in the selected stream over all size intervals.
EleComp
Elements		Hides or shows the element composition table.
Size	Display	Size of each interval in the mesh series.
All (All column)	Display	Total composition of all solids with a particle size distribution property in each size interval. The result is 100% when the interval contains solids with a particle size distribution property and 0 when it does not.
EleComp	Display	Mass fraction of each displayed element within each size interval.
All (All row, All column)	Display	Total composition of all solids with a particle size distribution property over all size intervals.
All (All row, per element)	Display	Overall mass fraction of each displayed element in the selected stream over all size intervals.
IPhComp
IPhases		Hides or shows the individual phase composition table.
Size	Display	Size of each interval in the mesh series.
All (All column)	Display	Total composition of all solids with a particle size distribution property in each size interval. The result is 100% when the interval contains solids with a particle size distribution property and 0 when it does not.
IPhComp	Display	Mass fraction of each displayed individual phase within each size interval.
All (All row, All column)	Display	Total composition of all solids with a particle size distribution property over all size intervals.
All (All row, per individual phase)	Display	Overall mass fraction of each displayed individual phase in the selected stream over all size intervals.
Dist
Size	Display	Size of each interval in the mesh series.
All (All column)	Display	Fraction of the total mass of all solids with a particle size distribution property in the selected stream that occurs in each size interval.
Dist	Display	Fraction of the total mass of each solid species with a particle size distribution property that occurs in each size interval.
All (All row, All column)	Display	Total distribution by size of all solids with a particle size distribution property. The result is 100% when the selected stream contains solids with a particle size distribution property and 0 when it does not.
All (All row, per species)	Display	Total distribution by size of each solid species with a particle size distribution property. The result is 100% when that species is present and 0 when it is not.
CmpDist
Components		Hides or shows the component distribution-by-size table.
Size	Display	Size of each interval in the mesh series.
All (All column)	Display	Fraction of the total mass of all solids with a particle size distribution property in the selected stream that occurs in each size interval.
CmpDist	Display	Fraction of each displayed solid component's total mass that occurs in each size interval.
All (All row, All column)	Display	Total distribution by size of all solids with a particle size distribution property.
All (All row, per component)	Display	Total distribution by size of each displayed solid component. The result is 100% when that component is present and 0 when it is not.
EleDist
Elements		Hides or shows the element distribution-by-size table.
Size	Display	Size of each interval in the mesh series.
All (All column)	Display	Fraction of the total mass of all solids with a particle size distribution property in the selected stream that occurs in each size interval.
EleDist	Display	Fraction of each displayed element's total mass that occurs in each size interval.
All (All row, All column)	Display	Total distribution by size of all solids with a particle size distribution property.
All (All row, per element)	Display	Total distribution by size of each displayed element. The result is 100% when that element is present and 0 when it is not.
IPhDist
IPhases		Hides or shows the individual phase distribution-by-size table.
Size	Display	Size of each interval in the mesh series.
All (All column)	Display	Fraction of the total mass of all solids with a particle size distribution property in the selected stream that occurs in each size interval.
IPhDist	Display	Fraction of each displayed individual phase's total mass that occurs in each size interval.
All (All row, All column)	Display	Total distribution by size of all solids with a particle size distribution property.
All (All row, per individual phase)	Display	Total distribution by size of each displayed individual phase. The result is 100% when that individual phase is present and 0 when it is not.
Contr
Size	Display	Size of each interval in the mesh series.
All (All column)	Display	Fraction of the total mass of all solids with a particle size distribution property in the selected stream that occurs in each size interval.
Contr	Display	Stream Contribution of each solid species with a particle size distribution property and size interval to the total mass of all solids with a particle size distribution property in the selected stream.
All (All row, All column)	Display	Total stream contribution of all solids with a particle size distribution property. The result is 100% when the selected stream contains solids with a particle size distribution property and 0 when it does not.
All (All row, per species)	Display	Overall stream contribution of each solid species with a particle size distribution property for all size intervals.
CmpContr
Components		Hides or shows the component stream contribution table.
Size	Display	Size of each interval in the mesh series.
All (All column)	Display	Fraction of the total mass of all solids with a particle size distribution property in the selected stream that occurs in each size interval.
CmpContr	Display	Stream Contribution of each displayed solid component and size interval to the total mass of all solids with a particle size distribution property in the selected stream.
All (All row, All column)	Display	Total stream contribution of all solids with a particle size distribution property.
All (All row, per component)	Display	Overall stream contribution of each displayed solid component for all size intervals.
EleContr
Elements		Hides or shows the element stream contribution table.
Size	Display	Size of each interval in the mesh series.
All (All column)	Display	Fraction of the total mass of all solids with a particle size distribution property in the selected stream that occurs in each size interval.
EleContr	Display	Stream Contribution of each displayed element and size interval to the total mass of all solids with a particle size distribution property in the selected stream.
All (All row, All column)	Display	Total stream contribution of all solids with a particle size distribution property.
All (All row, per element)	Display	Overall stream contribution of each displayed element for all size intervals.
IPhContr
IPhases		Hides or shows the individual phase stream contribution table.
Size	Display	Size of each interval in the mesh series.
All (All column)	Display	Fraction of the total mass of all solids with a particle size distribution property in the selected stream that occurs in each size interval.
IPhContr	Display	Stream Contribution of each displayed individual phase and size interval to the total mass of all solids with a particle size distribution property in the selected stream.
All (All row, All column)	Display	Total stream contribution of all solids with a particle size distribution property.
All (All row, per individual phase)	Display	Overall stream contribution of each displayed individual phase for all size intervals.
Distribution
Name	Display	Shows the name of the SysCAD Size Distribution (PSD) quality associated with the feed stream.
IntervalCount	Display	Shows the number of size intervals in the SysCAD Size Distribution (PSD) quality associated with the feed stream.
SpWithPSDCount	Display	Shows the number of species in the feed stream assigned with the SysCAD Size Distribution (PSD) quality.
Recovery
Density	Display	Density of each solid species with a particle size distribution property.
Size	Display	Size of each interval in the mesh series.
MeanSize	Display	Geometric mean size of each interval in the mesh series.
All (All column)	Display	Calculated recovery of all solids with a particle size distribution property for each size interval. The result is the total mass in the combined Concentrate streams divided by the total mass in the combined Feed streams for the interval.
Recovery	Display	Calculated recovery of each solid species with a particle size distribution property for each size interval.
All (All row, All column)	Display	Overall recovery of all solids with a particle size distribution property for all size intervals.
All (All row, per species)	Display	Overall recovery of each solid species with a particle size distribution property for all size intervals.
CmpRecovery
Components		Hides or shows the component recovery table.
Size	Display	Size of each interval in the mesh series.
MeanSize	Display	Geometric mean size of each interval in the mesh series.
All (All column)	Display	Calculated recovery of all solid components represented in the table for each size interval.
CmpRecovery	Display	Calculated recovery of each displayed solid component for each size interval.
All (All row, All column)	Display	Overall recovery of all solid components represented in the table for all size intervals.
All (All row, per component)	Display	Overall recovery of each displayed solid component over all size intervals.
EleRecovery
Elements		Hides or shows the element recovery table.
Size	Display	Size of each interval in the mesh series.
MeanSize	Display	Geometric mean size of each interval in the mesh series.
All (All column)	Display	Calculated recovery of all elements represented in the table for each size interval.
EleRecovery	Display	Calculated recovery of each displayed element for each size interval.
All (All row, All column)	Display	Overall recovery of all elements represented in the table over all size intervals.
All (All row, per element)	Display	Overall recovery of each displayed element over all size intervals.
IPhRecovery
IPhases		Hides or shows the individual phase recovery table.
Size	Display	Size of each interval in the mesh series.
MeanSize	Display	Geometric mean size of each interval in the mesh series.
All (All column)	Display	Calculated recovery of all individual phases represented in the table for each size interval.
IPhRecovery	Display	Calculated recovery of each displayed individual phase for each size interval.
All (All row, All column)	Display	Overall recovery of all individual phases represented in the table for all size intervals.
All (All row, per individual phase)	Display	Overall recovery of each displayed individual phase over all size intervals.
Distribution
Name	Display	Shows the name of the SysCAD Size Distribution (PSD) quality associated with the feed stream.
IntervalCount	Display	Shows the number of size intervals in the SysCAD Size Distribution (PSD) quality associated with the feed stream.
SpWithPSDCount	Display	Shows the number of species in the feed stream assigned with the SysCAD Size Distribution (PSD) quality.
CircLoadRatio
Density	Display	Density of each solid species with a particle size distribution property.
Size	Display	Size of each interval in the mesh series.
MeanSize	Display	Geometric mean size of each interval in the mesh series.
All (All column)	Display	Calculated circulating load of all solids with a particle size distribution property for each size interval. The result is the total mass in the Circulating stream divided by the total mass in the Reference stream for the interval.
CircLoadRatio	Display	Calculated circulating load of each solid species with a particle size distribution property for each size interval.
All (All row, All column)	Display	Overall circulating load of all solids with a particle size distribution property for all size intervals.
All (All row, per species)	Display	Overall circulating load of each solid species with a particle size distribution property for all size intervals.
CmpCircLoadRatio
Components		Hides or shows the component circulating load table.
Size	Display	Size of each interval in the mesh series.
MeanSize	Display	Geometric mean size of each interval in the mesh series.
All (All column)	Display	Calculated circulating load of all solid components represented in the table for each size interval.
CmpCircLoadRatio	Display	Calculated circulating load of each displayed solid component for each size interval.
All (All row, All column)	Display	Overall circulating load of all solid components represented in the table for all size intervals.
All (All row, per component)	Display	Overall circulating load of each displayed solid component over all size intervals.
EleCircLoadRatio
Elements		Hides or shows the element circulating load table.
Size	Display	Size of each interval in the mesh series.
MeanSize	Display	Geometric mean size of each interval in the mesh series.
All (All column)	Display	Calculated circulating load of all elements represented in the table for each size interval.
EleCircLoadRatio	Display	Calculated circulating load of each displayed element for each size interval.
All (All row, All column)	Display	Overall circulating load of all elements represented in the table over all size intervals.
All (All row, per element)	Display	Overall circulating load of each displayed element over all size intervals.
IPhCircLoadRatio
IPhases		Hides or shows the individual phase circulating load table.
Size	Display	Size of each interval in the mesh series.
MeanSize	Display	Geometric mean size of each interval in the mesh series.
All (All column)	Display	Calculated circulating load of all individual phases represented in the table for each size interval.
IPhCircLoadRatio	Display	Calculated circulating load of each displayed individual phase for each size interval.
All (All row, All column)	Display	Overall circulating load of all individual phases represented in the table for all size intervals.
All (All row, per individual phase)	Display	Overall circulating load of each displayed individual phase over all size intervals.

About page

This page is provides product and licensing information about the Met Dynamics Models SysCAD Add-On.

Tag (Long/Short)	Input / Display	Description/Calculated Variables/Options
About
HelpLink		Opens a link to the Installation and Licensing page using the system default web browser. Note: Internet access is required.
Information		Copies Product and License information to the Windows clipboard.
Product
Name	Display	Met Dynamics software product name
Version	Display	Met Dynamics software product version number.
BuildDate	Display	Build date and time of the Met Dynamics Models SysCAD Add-On.
License
File		This is used to locate a Met Dynamics software license file.
Location	Display	Type of Met Dynamics software license or file name and path of license file.
SiteCode	Display	Unique machine identifier for license authorisation.
ReqdAuth	Display	Authorisation level required, MD-SysCAD Full or MD-SysCAD Runtime.
Status	Display	License status, LICENSE_OK indicates a valid license, other messages report licensing errors.
IssuedTo	Display	Only visible if Met Dynamics license file is used. Name of organisation/seat the license is authorised to.
ExpiryDate	Display	Only visible if Met Dynamics license file is used. License expiry date.
DaysLeft	Display	Only visible if Met Dynamics license file is used. Days left before the license expires.

Additional notes

• The model supports up to 16 calculation pages.
• A Recovery calculation supports up to 32 Feed streams and 32 Concentrate streams. Additional source fields appear progressively as tags are entered.
• Each Composition by Size table displays up to 48 constituent columns, in addition to the Size and All columns. The All results include all solid species with a particle size distribution property, including species not shown when the display limit is reached.
• Only solid species with a particle size distribution property are included. Liquids and solid species without a particle size distribution property are excluded.
• All streams used by a Recovery or Circulating Load calculation must use the same particle size distribution definition.
• Clearing a Recovery source field compacts the remaining source tags toward the first field.
• The Components, Elements, and IPhases show/hide controls apply globally to equivalent result grids.
• Results calculated using OnStop or Manual remain available until a source tag, Type, or CalcWhen changes, or the results are recalculated.