Apply Wash

This command takes the wash curve files and runs them through the washing process to report the results either at a specified density, or with certain targets defined to calculate the density to wash the product to. These results can be saved as a *.STC Stratacalc file that may then be used with Make Strata Grid or AutoRun Strata Grids to make grids of these washed attribute values, and add them to the geologic model for mine quantities and reserves.

Inputs

Wash File Settings

• Min / Max Density: The density range is entered here. Target is what the user wants for low and high, and Active is what is found in the data.
  
• Number of Float Levels: These are the steps or intervals of the density ranges, such as 1.5, 1.55, 1.6, 1.65 etc. There must be at least two float rows, so that a line can be interpreted between the two points on the graph/curve.
  
• Number of Files: This shows the number of WASH files that were selected and read in. Target shows the actual files that were selected, Active shows the number that contain usable, complete data.
  
• Target and Active: The Target column displays what the user has defined, the Active displays what the program can use, that has complete data.
  
• Select: This button brings up the file selection dialog to select the *.WASH files that were created with Define Washing Curve command. One or multiple files may be selected with CTRL or SHIFT.
  
• Missing: If more than one WASH file is selected, then this Missing button is active. This displays any attributes that are missing from the samples or drillholes. These samples will not be used in the wash analysis, as all attributes must be in all sample points for the proper results. If some attributes are missing, the window appears as follows.
  

Input Lithology

• Attribute: These are the attributes found in the drillhole, stratacalc file, and wash file to be used for the washing results.
  
• Raw Average: This displays the raw average values of all the samples from all the drillholes and lithology intervals.
  
• Select: Even though drillholes were selected at the start of the command, this option allows for adding or reselecting different drillholes for the analysis. The Loaded number refers to the total number of intervals that are used for the analysis, this could be more than the total drillhles. 

Wash Density Options

• Maximize Yield / Fixed: These two options determine the calculation method. Maximize Yield will require the attribute Targets sections filled out, and the program will calculate and report the density to meet the desired attribute targets. The Fixed Density method will calculate and report the attribute results if the material is to be washed to this specific density.
  
• Fixed Wash Density: This density is what will be washed to with the Fixed option set above.
  
• Calculate: After selecting the density options, and if the targets are filled out for Maximize Yield, then selecting this button will display the results in the bottom sections, and will be ready to report the results.
  

Targets

The targets are only used when the Maximize Yield option in the Wash Density Options is used. All three target fields have an Add and Delete Target for the attribute rows. Each target can be saved out as a separate file, with a TRGT file extension.

Raw Targets: The raw targets are first analyzed to see if these conditions are met using the raw material without any washing. If the material passes and meets these targets, then there is no need to wash, and the material is not processed and will be used as is, or raw. The unprocessed material is acceptable and will be used without washing.
Processing Targets - Float Targets: These attribute targets are the quality of material that is desired from the result of washing. Entering the minimum or maximum values of the attributes determines what density the material needs to be washed to for float.
Processing Targets - Sink Targets: This is the target of the sink material, usually waste rock. If the attribute target is used here (not required if targets are set for float), then both the float and sink targets must be met for the material to be washed and pass.

Outputs

Lithology Targets Summary: The total number in the count should add up to the total number of Loaded Input Lithology samples.

• Missing Attributes: Displays the number of samples that were missing at least one of the attributes, so the wash analysis could not be performed on it.
  
• Failing Attributes: Displays the number of samples that failed to meet the attribute targets, so washing was not applied to them.
  
• Passing Raw Targets: Displays the number of samples that met the attribute targets without even needing to be washed.
  
• Passing Processing Targets: Displays the number of samples that did meet the attribute targets and were properly washed and output to the results for modeling.

Average Passing Raw Values: If the Raw material attributes meet and pass the targets, this window displays the average values in raw, unwashed state.

Average Washed Values

• Yield: This displays the percentage of total material meeting and passing the attribute targets when washed to the Wash Density.
  
• Wash Density: This is the density either calculated based on the desired attribute targets, or it is the user entered density to determine the attribute values at that density.
  
• Attribute Float / Sink: These are the average values of all the washed, float and sink material when the material is washed to the specified density meeting the targets.
  

Average Combined Values

• Yield: This reports the total percent yield of both the Raw and Washed (passing Float) of the material.
  
• Attribute Float / Sink: This displays the combined average of both the Raw and Washed (Float) material attributes.
  

Prompts

Command: C:APPLYWASH
Apply Wash Dialog

Drop-Down Menu Location: StrataCalc ->Wash Filter->Apply Wash
Keyboard Command: applywash