hey guys this is jason with now baker mining and metals and we're visiting a customer of ours
about a two ton per hour turnkey system and we're gonna help them tune it in a little bit and get it
set up and running as optimally as possible so here's their 8 by 12 jaw crusher module
they have a little ramp up to the hopper they can take a wheelbarrow and dump it in the
crusher hopper goes down through the crusher into the conveyor module
and these guys are working on getting the hammer mill ready to change the hammers
and then down onto our five by 12 shaker table
we have a couple of sluice boxes the port of the number three
and the number four just to check for gold lost
the tailings number four port go into the spiral classifier
where they classify the oversized tailings
and then the the fine tailings out of the spiral classifier go down this trench
into the first tailings pond and there's a little pass through
where the clean water siphoned off and i believe they pump water out of the second pond there
here's our stockpile of ore they're getting ready to feed into the jaw crusher
and their surface mining with an excavator and then the guys hand pick into these sacks
and they bring it here to stage it for the crusher
but this is the kind of ore they're they're working with
quartz veins
hosted in a argelite
and the grade of this stuff is
about an ounce of ton they tell me they've gotten samples as high as 10 ounces a ton
here's what powers the whole mill this is a caterpillar generator 100 kilowatt
and they've got the main power running up to a pole
across a couple of poles down to the mill
so
cheers
so
these guys were able to crush a full hopper for the conveyor module in about 25 minutes
of run time with the jaw crusher and the conveyor module hopper can hold about
one cubic yard but they uh you know overfill the hopper and so in this situation it's
probably holding somewhere between two and two and a half tons and so when the hopper
was full they would shut the jaw crusher off and then it took the hammer mill about an hour
to process the hopper so the jaw crusher was only running part of the time for this operation
one of the things that was very unique about this mine is their gold is very very coarse
and so unlike most minds that want to crush as fine as possible
these guys actually had a screen that was fairly large and so some of
the shaker table videos you may be able to see some larger pieces on the shaker table
and the reason they wanted to crush the material fairly large is so the gold didn't hang up in
the hammer mill and get over over processed or grinded up and so these guys goal is to process
the tailings through a spiral classifier as you can see here auger out the oversized quartz and
then refresh at a later date to liberate more gold but because a lot of their gold is so coarse
they have to do a coarse crush and concentrate first and then they can come back later and
capture the fine gold once it's refreshed again through the hammer mill with a finer screen
so
and here you can clearly see the large quartz pieces
on the shaker table but again when we look into the number one trough here you can see the
the large pieces of gold that they want to get out of the grinding system as soon as possible
so here's some gold from our cleanup from last night and we ran about two tons
and this is probably half of the gold they're cleaning up the rest here now
but you can see the the gold is very very coarse very big pieces
and hardly any fine gold it's just mostly big big pieces of gold and this uh this ore
has very little sulfides so it's mostly just quartz and and big gold which is pretty unique
okay
and so here's where they're mining kind of an open pit style
they're digging with an excavator down and exposing the veins in the surface
and then it looks like they're hand sorting the ore out into bags and bringing it up to the mill
and here's one of these veins these guys have exposed running up here it's all muddy
but you can see here that there's a little fresh break a little quartz vein there
and these veins are running about an ounce a ton and they're hosted in this kind of archeolite
slate type of material here's a view of the wall rock or the country rock
and so they dig off the the overburden down to the vein expose the vein and then they
they bring it out in these in these bags here
and so in here is all they're good and sordidore
and they'll take that up to the mill
these are hammers in a 24 by 16 hammer mill and we've run about six or seven tons of very very
hard quartz through them and the front leading edge is wearing the face of the hammer is still
visible and we have a little bit more wear on the outside hammers and on the inside hammers
and so my recommendation is to run another six or eight tons and then check the hammers again and
if they need to be flipped or turned around then you can use this leading edge to crush another
uh maybe 10 or 15 tons of rock but the the rock here is very very hard and even uh 20 chrome
hammers are wearing quickly so they're only going to get about 30 tons per set of hammer whereas we
have customers in in utah who are actually getting over 100 tons on a set of hammers so it really
varies the wear rate really varies depending on the type of ore and the hardness of the ore
how's the screen look yeah the screen still looks good
it's wearing a little bit in the middle but that's to be expected
so now they're cleaning up their number one and number two concentrates on the table again
and all the quartz is flowing down here into the number three
and they're putting their concentrates up on the shaker table
and i don't know if i can get the camera to focus while it's shaking
but the gold the gold line comes right down here under the water bar
ah
uh so you dried the dried the concentrates mm-hmm
then you're gonna put them in that little jar yeah okay can i watch let's see i want to see
and this is the dried concentrates from the first two times we ran right yeah okay
and so there you go there's the cons from the first two tons there it is cool all right
for the first three or four hours we were here we got the mill tuned up and now it's running the
two or two and a half tons per hour and they're getting some good gold off their shaker tables
so the customer's real happy and they're they're running even into into the darkness tonight so
hope you guys enjoyed the video thanks for watching and we'll see on the next one