Hi my name is Jason with Mt. Baker Mining and Metals.
And today we have a sample here from a municipal waste processing facility.
The goal here, it’s got plastic paper, aluminum, steel.
But it’s got a bunch of broken glass in it.
The goal today is to break the glass to smaller than quarter inch pieces so it will go through
there sorting screen and keep everything else as large as possible.
So were going to run it a couple different ways, we have a quarter inch slotted screen
and then were going to run another sample with no screen at all and try to just powder
the glass and have everything else fall through.
This going to be through a 16" x 12" hammer mill, were gonnna run a couple of samples
and show you the results.
Okay, so here’s the product after its been through a quarter inch slotted screen.
pretty much beaten it up pretty good, some of the plastic stayed a little larger,
the paper got kinda fuzzed up and you can see the small glass fibers, I mean pieces.
So, that’s with a quarter inch slotted screen, now were going to take out the screen and
were going to run with no screen one pass through and let
it fall out of the bottom.
Okay so we took the lid off the hammer mill after our first run with the quarter inch
slots And I just wanted to show you the hammers
we use, they are cast manganese steel, there are
4 rows of 5 so there are 20 hammers in a mill.
looking down you can see the slots in the scree,
its kind a hard to see but you can see the quarter inch slots we cut into our screen,
and the screen wraps all the way around, 180 degrees on the bottom of the
hammer mill, allowing maximum throughput for material to come out of the bottom of the
mill.
Okay so here’s the result of the 16" x 12" hammer mill with no screen, all the
paper stayed a pretty good size, even these lids and stuff didn't get affected hardly
at all.
but down here at the bottom you can see a lot of the
glass is less than 1/4".
Almost of that there.
so, I think that worked out really well with no screen, so were gonna send these samples
back to the customer he can analyze them and see what he thinks.
and we will see what happens, so thanks for watching and ill see you on the next video.