Sonoran Dave Posted July 15, 2013 Share Posted July 15, 2013 Here is pic's of my newest clean up contraption.Removed the adjusting valve at the BlueBowl and relocated it to the pump. Thanks Hoser John for that tip Also drilled some overflow holes in the bucket to keep it from splashing all over the sides, it nows empties nicely under the sluice.Decided to use a 110v pump to help prevent output flow variations. That pump can suppy plenty of flow to both units at the same time.- 30 mesh goes into the BlueBowl all the +30 goes thrugh the mini sluice. Now I need to fab up a 30 mesh mini- trommel to classify for me So far very satified with the results Quote Link to comment Share on other sites More sharing options...
devilishjim Posted July 15, 2013 Share Posted July 15, 2013 Thanks for the tip on drilling holes in the side of the bucket, That will make wife happy when I decide to blue bowl inside on a miserable day. I am thinking about getting rid of that garden hose type valve and installing a brass gate valve to be able to fine tune my water better to maintain the right height I have tested the blue bowl by dumping various sizes of gold into it with black sand and it does a fantastic job of washing all the sand out, I even tried to wash gold out and it wouldnt budge off the bottom and that was running full stream up and over the side and I noticed that black sand was getting out at about 1" from the top so it should have no problem separating fine gold. If you are running real fine then just dont rush the blue bowl by speeding up water Jim Quote Link to comment Share on other sites More sharing options...
Hoser John Posted July 16, 2013 Share Posted July 16, 2013 YAHOO us boys do love to goldfarb them toys,clean build and tons a au 2 u 2-John--PS- Where is the beer can holder??? Quote Link to comment Share on other sites More sharing options...
Sonoran Dave Posted July 16, 2013 Author Share Posted July 16, 2013 (edited) YAHOO us boys do love to goldfarb them toys,clean build and tons a au 2 u 2-John--PS- Where is the beer can holder???That is built into the chair!! Edited July 16, 2013 by ArcticDave Quote Link to comment Share on other sites More sharing options...
elder-miner Posted July 16, 2013 Share Posted July 16, 2013 Just a thought.This winter when my little placer workings are froze-up-snow-bound. To help cure the winter doldrums, I may MacGyver together a hobby or clean up scale Pan American style duplex jig. Starting with a prototype made from either 8-10-12 inch diameter schedule 30 - 40 or 80 PVC pipe. Which I have a supply of on-hand. I also have a big bore PVC cutter & a PVC welder. Thinking of two 24 inch tall columns, with each cell underlain by a two part conical hutch joined by an annular diaphragm of flexible rubber to allow up-and-down oscillation of the lower hutch. Ragging material would be 3/16ths steel shot, diaphragm stroke length around 1 inch & stroke frequency – around 140 or 150 cycles per minute. I have almost all the pieces & parts it would take on hand, except the shot. So, I will start looking for a bargain deal on enough BB sized shot to fill the columns.Idea came from link below. http://www.mine.mn/Robin_Grayson_gold_recovery_method14.pdf Quote Link to comment Share on other sites More sharing options...
Hoser John Posted July 17, 2013 Share Posted July 17, 2013 Good ol'school Panomatic and/or shot jigs are fun to build too-John Quote Link to comment Share on other sites More sharing options...
homefire Posted July 17, 2013 Share Posted July 17, 2013 WoW! I would be happy with a good pan and a Henry Poop Tube. ? Them there Gaseous Spinning Centrifugal system would be cool. The TSA would think I was saving up some Plutonium to make my Pocket Bomb. By the way I know of no a way to make Gold Gaseous! Only Beat it down with Halides and a bit of Bleach. What a bit of fun. Until then I like that Pan and the Poop Tube. I love Gold but that is more then I think I need to play with. Quote Link to comment Share on other sites More sharing options...
elder-miner Posted July 17, 2013 Share Posted July 17, 2013 After figuring out how much steel shot I would need, the weight & cost.I don’t think I will build a clean up scale Pan-Am Style duplex jig.It would be heavier & more cumbersome than I care forSimple, light & portable is better, so long as it functions well.Long narrow clean up sluice box with this type rough top belting works great.Rough-Top Incline Conveyor Belting SBR Black2 Ply, .25" Thick, 3 to 24 inch Widthhttp://www.mcmaster.com/#catalog/119/1248/=nnxjw5 Quote Link to comment Share on other sites More sharing options...
klunker Posted July 18, 2013 Share Posted July 18, 2013 What little I have messed with jigs they were a pain ---. but once they were working they performed well until something else changed like material, feed rate. water clarity, sun spots and so on. It's just hard to beat a good working sluice but I'm always trying to reinvent the wheel. Quote Link to comment Share on other sites More sharing options...
Sonoran Dave Posted July 18, 2013 Author Share Posted July 18, 2013 (edited) A drop riffle sluice has become my favorite. The BlueBowl works great on the small stuff...have not found any get past it yet.Jigs are a PITAWhen I worked for a commercial placer mine, we were constantly repairing a jig the owner had. My Le Trap worked great for dredge cleanups back in Nome. When we got a bucket full of Le trap cons, we ran it through the MacKirk minisluice. Did not miss a lot, and it was easy. Human nature to try re-invent the wheel though.... Edited July 18, 2013 by ArcticDave Quote Link to comment Share on other sites More sharing options...
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