Hi, my name is Jason Gaber with Mt. Baker Mining and Metals
Today we are going to give you a little overview on what we do here
and for more information you can go to our website
what we do here is we specialize in crushing and concentrating
hard rock ores
we use gravity methods of concentration
stay away from the chemicals and the permitting issues associated with those
basically what we do is when a perspective client
contacts Mt. Baker Mining and Metals
we are going to ask for a test sample of your ore
we like about a 100lbs of your ore sent to us
and we will run that through our testing process
on the equipment you see behind me, and we are going to test for
the values in your ore and if those test prove
positive we will look at coming onto your site
taking our equipment onto your site
and milling your ore on a production scale.
and today we are going to do a little walk through and show you some of the equipment we use
The first part of our process here is we will put it through a small jaw crusher
like we have behind me here, this is a mark 6 rock hog
and the opening on this jaw is
5 inches by 3 inches, so it will take about a 4 inch rock
it's run by a 16 horse gasoline motor
and once it runs down through the jaw
it comes out about half an inch out of the jaws
it will fall directly into a roller mill
located just below the jaw crusher
the roller mill will further reduce he material to minus 8th of an inch
the material falls out of this roller mill into this chute
and the material falls down into the impact mill
here is the inside of our impact mill
as you can see it's just an arm
with paddles on each end
and the arm rotates
at about
I think about 1,800 RPM
it's also driven by a 16 horse gasoline motor
and it's belt driven
this impact mill will reduce the material to about minus 50 mesh
and the material is gravity fed up and out of the impact mill
down this tube
and falls onto the shaker table
the material falls out of this chute onto the shaker table
the shaker table will carry the heavier material
over to the left, the gold
will be carried all hte way to the left and carried down these two
holes here, they are the super concentrates holes
the gold falls down into a bucket
the heavier sulfides
and tellerides, if there are any in your ore
travel down here into the concentrates hole
and fall down into the concentrates bucket here
and any tailings
will flow down the table this way
down into the tailings
trough here
into a prototype hydrocyclone we have here
and the goal of this is that the tailings will come down
this tube here, tailings and water
enter into the 6 inch diameter pipe here
this is closed off
so no water can flow out of the bucket
and the water column travels up this 6 inch pipe
and out here into the tailings pond
this particular hydrocyclone
will carry 80 mesh minus
material up and out into the tailings
the 80 mesh plus
falls down into the water column and down into the bucket below
where it can be re-ground in the impact mill
and the water is re-circulated
through this little pump here
back up on the shaker table and a little bit is used on the jaw crusher
Here is some ore from one of our clients
and he sent us a little extra, so we are going to show you the process using his ore
it's gold bearing quartz out of a vein on his property
and this ore runs about 0.5 and 0.6 ounces per ton
and through our process
if we crush it to about 90% 80 mesh
we liberated about 85% of the gold and capture it on our shaker table
here are the three buckets I wanted to show you after running them on hte table
here are your super cons, about 95% of you gold should be in your super cons
as you can see there is very very little material in there
as well as concentration ratios go that's well over a 100 to 1
the next bucket here
is our concentrates bucket
this where all our
some silver sulfides may end up in there
very little free gold will end up in the concentrates bucket
but as you can see this material didn't have very much sulfides in it
I think overall our concentrates ratio are over 75
and a 100 to 1
and here is the material that
was captured by the hydrocyclone
this material is all 80 mesh plus
as you can see in here is
some larger grain maybe up
to 20 mesh even
but there shouldn't be
anything 80 mesh or smaller and all this material will get run through
the system again to liberate any values that are
locked up in some of these larger particles
and the rest of the material
that didn't get captured in the hydrocyclone bucket
went into the tailings pond
you can see this material is very very fine
80 mesh minus
This again is our super cons
and our concentrate bucket
and after the testing process is over we will take these two samples
and send them off to a independent assayer
and get them assayed for gold and silver
we can also do led, zinc and copper
anything your ore might have in it
anything heavy will be concentrated into these two buckets
and this will go off and this will be our cons assay
the material that comes out of the hydrocyclone
will be captured by a container
held under this stream 1 second every 20 seconds
and as this material is captured it will be placed into a sample bag
and the tailings that are 80 mesh minus will be sent off for assayed
over at an independent assayer
so you will have a concentrates assay
and a tailings assay and with those two numbers we can calculate a percent recovery
this our super cons here
and I just wanted to show you guys
the finess of the gold were getting out of the shaker table
normally this would be sent off for assay
just to give you an idea what were capturing
of the super cons hole I was going to pan this out for you
you can see here the line of gold
a crease in the pan
there is my finger for scale
the majority of this gold is minus 200 mesh
and all this gold came out of only about 30lbs of ore
this ore is running some where between, 0.5 and
0.6 ounces a ton
and this would be an ore that is worth
our while to mill this would make the
this would make the land or mine owner money at half an ounce