Gold Ore Blasting and Processing, Southern Oregon Gold Mine

[M.E.G.]

 

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[dave wiseman]

Nice setup..I guess no one's worried about silicosis.

 

[ncclaymaker]

Besides silicosis, these guys are coating their lungs with thick oil from the compressed air line oiler while drilling, and lining their lungs with corrosive ammonium nitrate. Instead of using a blasting box with an electric cap to initiate the face shot, they use a fuse/black-wick ignitor. Reliable and guessing when the shot goes off... well, not a great safety decision. My guess is that they think that the blast is supposed to reduce the muck to "gravel" or pea size... it's usually used as a means to reduce solid face rock to a mucking size, then reduce it with a crusher. Each shot they do is costing way more than it should. From my experience they are really overloading the boreholes with way too much powder. Did anyone see a ground wire/cable on their ANFO pot?

Don't worry - wait until a mine inspector pays them an unexpected visit.