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Date Posted: 10:19:18 08/19/05 Fri
Author: Wishbone
Subject: Land Dredging Drywasher !!??

Jim and John you're so right about it being dead on the forum. Cheez!! where is everybody??

Well since it's so quiet I'd like to toss something out that has sorta teased my mind for a while now. I'm hoping someone can give me some ideas on a project I've been playing with and that idea is a drywasher (constant air type) that acts as a land dredge. I love to work shallow bedrock in out of the way places in gold bearing areas. It's especially nice when I find a place like this where the oldtimers have worked. This is evidenced by the cobbles that have been thrown upon the banks and have that old weathered, desert varnished look to them and no evidence of new workings around. Gotta love it ;o)

Anyway I hand classify the area I want to work. I fire up my Vac-Pac type system and suck up material and wire brush afterward and then repeat the vacuuming process. This material goes into the vacuum bucket as we all know. It's then dumped onto the classifing screen of the drywasher, then it's run through the drywasher, as we all know.
How neat it would be to leave the drywasher running while we vacuum up our material. The material would be going from the vacuum hose up to a container which in turn is constantly feeding the material onto the classifying screen and then down into the hopper and then fed across our riffles. I keep racking my brain trying to figure out a way to accomplish this process without stopping while I continue dredging the bedrock!!!!???

The problem is getting the material from the vacuum bucket onto the classifying screen without breaking the vacuum.

I can come up with the way to place the vacuum bucket securely in place above the drywasher. I then must stop working the bedrock, go to the drywasher and open a trapdoor that's on the bottom of the vacuum bucket, onto the classifying screen etc.

That's not what I want. I want the vacuumed material to go right up onto the screen without having to stop. Ahhhh, but that's the thing that's driving me nuts, at least up until now. Anyone out there have any input for me on this one? My drywasher will be set up to screen down to 1/8" size material so hangups in the feeding process will be minimal. This idea isn't original BUT I believe somehow, someway, a land dredging drywasher could be built that's simple in design, efficient (as drywashers go), light weight and maneuverable. Anybody care to jump in here with some thoughts on the subject. John?, Jim??

Wishbone

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