Running MSOPIT for
Assignment #6
These Slides are Base on MS3D version 4.6
which was current in Sept. of 2009
Note – These slides contain concepts also found in Mintec training courses. The slides
contain screen shots taken from the program MineSight produced by Mintec Inc.
Inputing MSOPIT Screens
This must identify the name of your
Block model that has been prepared
For MSOPIT
These screens can be left as is
Picking Your Surface File
This one must identify the
Name of the file 13 you
Prepared for MSOPIT
These fields can all be left as 0
For now. 0 refers to the undisturbed
Surface which is where an
Ultimate pit starts from.
Have the Computer Calculate the
Value of Each Block
Left click on the calculate value radio
Button
For the output report on block value
Intervals a number of 5000 works well
For the copper moly mine being
Considered.
Tell Which Variable In the Block Model
Says How Much of the Block is Made
of Rock
Pick the variable
That contains
The information
These are optional
Inputs – Leave them
alone
Set Minimum Value for Rock to be
Processed
The values shown here work
Ok for output parameters except
You need to put in the minimum
Value that a block must have
Per ton to break even on
Processing costs. This may
Require some calculation,
Estimation, or picking on your
Part.
Input the Economic Parameters for
the Mill
This is your
Mill process
Cost
(comes from
Your
Assignment
And may
Differ from
That shown
Here)
Continuing the Mill Input
This is where
Your ore
Mining cost/tonne
Goes and your
Ore specific
Gravity. (these
Values come
From your
Assignment and
May differ from
The illustration
Values here)
Input the Cu and Mo Values
Copper and
Moly values
Should be the
Value in
Concentrate form.
Your values may differ
From those shown here
These values
Are calculated
From the copper
And moly price
Less the cost
To produce a
Finished product.
For Copper this is
Copper cost minus
The cost of
Smelting and
Refining.
Input Your Recoveries
This is the
Percent
Of copper and
Moly recovery
At the mill.
The numbers
To use are
Provided in
Your assignment
And may differ
From the values
Shown here.
Input Other Data as Shown Here
Left click
apply
Input for Your Pad Leach
Your mining
And
Processing
And specific
Gravity values
Come from
Your assignment
And may differ
From the
Example.
Your recovery
Also comes
From your
assignment
Input the Copper Price
Copper price is
The value of
Copper in
Solution. It is
The selling
Price of copper
Minus the cost
Of solvent
Extraction and
Electrowinning
Given in the
Assignment.
(Your value may
Differ from that
Shown here)
Input the Dump Leach Screen
Click apply
When done
Input the Worthless Dump Screen
Leave the Costs and Discounting
Screen Alone
This screen is used for mining whole benches
From the top down as in a quarry. By leaving
The factor equal to 0 the program knows
You are not executing this option.
Enter Your Ultimate Pit Slope
Pick a constant slope for this
Assignment
Enter the over-all slope as indicated
In your assignment (your value my
Differ from the one shown in the
Example).
Pick Learch-Grossman for the
Method of Finding the Ultimate Pit
Pick base which means
Show me one pit based on
The constraints and
Economics given.
Pick Learch-Grossman from
The drop down menu
Accept the other defaults
On the page.
Tell the Computer Which Surface to
Put the Pit Surface Out to.
You can accept
The defaults on
Everything else.
The 0 surface is the undisturbed
Pit surface. The input here
Selected pit 1 for the ultimate pit
Surface, but you know in the
Next assignment you will create
6 stage pits so you can put the
Output on surface 7 if you want.
Leave the Audit Screen As Is
Set My Output Options
Each block of ore will go to a
Destination – identify the variable
In your block model where the
Destination is to go. (This will
Depend on the names you gave
To variables in your block model)
Do the same thing with where you
Want info to go on value of each
Block and the value per ton of the
Rock it contains.
Give Directions for the Report
Pick a headline for the report
Output
Pick a file extension for the output
(this enables you to keep a bunch
Of reports without over-writing)
Tell The Computer to Run the
Routine
Left click file
Pick run
procedure
After the Procedure Runs Set Up
the Display
Create a
New model
View with
The data
manager
It Asks for a Name for the Model
View
It Also Wants Me to Pick My Project
Control File (my file 10)
It Wants to Know What File I Want I
Model View for
I’m want my
File 13 so I
Can see my
Finished pit
Surface.
Left click the
File
Then left click
Ok
I’m Going to Select Making Model
Views for All My Surfaces
Now I’ll Open My Model View to
See that Final Pit Surface
I pick my surface
(for me I output
The surface to
Pit 1 but you
Might have
Picked pit 7 or
Some other
Surface)
I right click to
Pop up a menu
And then I
Left click on
Open.
Here is My Surface
I have colors
Set for different
Elevation but
My elevation
Colors look real
Screwy.
I’m Going to Debug that Color
Mess
For the surface
I’m working
Right click to
Pop up the menu
Then left click on
properties
Here Is My Problem
I’m displaying
My final pit
Surface but my
Color cut-offs
Are based on
Topog which is
My original
Undisturbed
Surface.
Left click the
Blue list box
(I’m going to
Pick the right
Surface to base
My color coding
Off).
Up Comes My List of Surfaces
Since I’m trying
To display the
Pit 1 surface,
I point and left
Click pit 1
Then I will left
Click Ok
Now That Looks More Like It
Now I’m
Maneuver And
take my
Screen shots
For the
Assignment.
To Run My Floating Cone I Need to
Go to the Design Strategy Screen
I pick floating cone from the
Drop down menu
I put in a reasonable
Minimum size for the pit
Bottom (if it makes a
Pointy bottom pit I’ll have
A tough time getting my
Truck in there)
I’ll also want to change some of my output
Headings and also the report extension so my
New run does not over-write my LearchGrossman report (because I have to turn in
Both reports)
Eventually I’ll Also Have to Try the Run
the Costs Increasing as the Pit gets
Deeper
Go to costs and discounting and
Check costs vary by bench
Note one more screen comes to life
(is not grayed out)
Go to That New Screen
Note I have separate cost increases for Ore and Waste
(not surprising since we may very well be using different sized
Trucks going to different destinations)
Set the Range of Benches to Be
Affected
Select the range of benches to be affected. (In this case we will
Select the full range of benches)
Set How Much Extra Cost We Have
at the Start of the Range
In our case we have no initial extra cost so we choose zero. (If
I were doing something liking adding 3 cents per bench down
To bench 20 and then I wanted to starting adding 5 cents per
Bench after that I would have to have an extra 60 cents to start
With when I started with bench 21)
Set the Cost Increase Per Bench I
Go Down
Now I put in the cost increase I get for each bench I get
Deeper.
If I Wanted to Have Different Rate of Cost Increase for
Different Bench Intervals I could Left Click Add to put in a
new interval
Of course I won’t be doing that for this assignment