Change Sieve Series

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General Description

The Change Sieve Series model is required when a different size distribution (or sieve series) is to be used. This is particularly important when adding streams with different sieve series, as only streams with the same sieve series can be added. Therefore, before the streams can be mixed properly, the change sieve series model must be put in place.

To see more information on size distributions, please see Size Distribution (PSD).

Diagram

The diagram shows two streams using different sieve series mixing. A Change Sieve Series model is used to change the Coarse Sieve series to Fine Sieve Series before the mixing can correctly occur.

Inputs and Outputs

Label	Required Optional	Input Output	Number of Connections		Description
			Min	Max.
Input	Required	In	1	1	Input stream to Change Sieve Series.
Output	Required	Out	1	1	Output stream from Change Sieve Series.

Model Theory

To convert from sieve series A to sieve series B:

• For size interval in sieve series A the Sieve Changing model converts the % passing data to the Rosin-Rammler variable;
• The model then performs an interpolation to obtain the required Rosin-Rammler variable at the required size interval in sieve series B;
• This is then converted to % passing for sieve series B.

Data Sections

The default sections and variable names are described in detail in the following table.

Tag / Symbol	Input / Calc	Description
Common First Data Section
On	Tick Box	The toggle the sieve changing operation on/off.
SizeDefn	List Box	Lists all the available sieve series

Adding this Model to a Project

Insert into Configuration file

Sort either by DLL or Group.

	DLL:	Commn1.dll	→	Units/Links	→	Size Alteration: Change Sieve Series
OR	Group:	Size Distribution	→	Units/Links	→	Size Alteration: Change Sieve Series

See Project Configuration for more information on adding models to the configuration file.

Insert into Project

Insert Unit

→

Size Alteration

→

Change Sieve Series

See Insert Unit for general information on inserting units.