Hey guys, my name is Jason with Mt. Baker Mining and Metals.
Today we are going to be running our PCB Grinding system behind us.
We have a customer that sent us a sample of his electronic waste that he's shredded, there's
quite a bit of fine copper wire in there, there's also a few pieces of circuit board
and his goal with this stuff is to liberate the metal from the plastic and the waste.
We are going to try and recover all of the metals and have all the plastic, rubber and
other stuff go into the tailings fraction.
So we are going to run it through our 16" x 12" Hammer Mill it has a 1/4" punch plate
screen, all of the material is going to flow down onto our Shaker Table, the metallic fraction
will work it's way across the table towards me into the number one and number two bin.
The plastic and the rest of the waste is going to go down number three and the number four.
Currently, we are trying a new experiment where the number three will report to the
hydrocyclone as well, there's a pump in the hydrocyclone that everything that settles
down to the bottom gets pumped back up to the Hammer Mill for recirculation to grind
finer.
Anything that goes round and floats out into the settling ponds is considered tailings
and there shouldn't be anymore metallic fraction in them.
This sample, because it's so much wire and rubber and only a little bit of PCB material,
I'm going to take the tailings sample right out of the hydrocyclone, there's so much rubber
that it will just pump around the system for a long time to get ground up, this system
is really designed to pump only fiberglass and the circuit boards themselves.
We will try this, we will run a sample, gather the tailings and the one and the two and we
will see what we get.
Here is the results from the sample of the shred
stuff we ran through the PCB system, and this is the number one material.
We ended up modifying the screen a little bit, I told you at the beginning it was a
1/4" punch plate hole, we ended up modifying it down to about a two millimeter wide by
about an inch long slot.
You get a little bit finer grind, a little bit better separation.
This is the number two, there is a little bit more aluminum in there that you can see
but still, it's almost all metals.
This is just a sample of the number three, kind of the middlings section that we get.
The number four it's a little bit hard to see, cause it's so light it kind of floats,
here's some of the number four plastic and light material that we captured.
I'm going to bag all these up and send them back to the customer so he can check them
out.
Hope you guys enjoyed the video and we will see you on the next one.
Thanks for watching.