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MINING & CONSTRUCTION
angle of the riffles in my sluice box
Building a Sluice box? - GOLD PROSPECTING - Nugget Shooter ...
· Not an expert but my smaller sluice used 3/8 expanded metal with a combination of miners moss, carpeting, and rubber matting underneath. Maybe even some angle iron or something to catch nuggets first. For my failed experiment, I used expanded metal and no riffles because I was after sub gram gold, mostly minus 20 mesh.
· Otimum degree angle for your sluicebox? User Info Username: ... what you have installed in the box will change the required pitch. Riffles... Expanded metal.... just matting.... it all varies. ... Then adjust so that the material clears the sluice in roughly 3 seconds for a box 3' or 3 meters long.
Using a Sluice Box 101 – Gold Rat Highbankers Australian ...
Furthermore, the angle at which the sluice boxes lay are also very important. The angle will effect the speed of the water as it travels down as well as how fast the sluice is able to clean itself out.
How I built a recirculating sluice box for gold prospecting. 2012-01-17· How to build a recirculating sluice box for gold prospecting. Build A Do It Yourself, Homemade Gold Sluice Box. 2014-06-22· A sluice box lined with riffles is one of the oldest forms of gravity separation devices still being used today.
approximately a 10 degree angle. a. The angle may have to be re-adjusted once the proper flow has been determined. The angle of the sluice to determine the proper flow is generally as close to level position as possible without allowing the gravel to build up over the riffles. If the sluice box is tilted too much the material will flow over the ...
My Home Made 3 Stage Under Current Dredge Sluice Box
Homemade sluice box Nearing completion : Flat steel strips are welded on the ends of the riffle to hold them in the proper position. The wider part of the riffle is turned over and set at a 45 degree angle to the bottom of the sluice.
Gold Dredging & Sluice Box ... are arranged with sections of angle-iron riffles, most of them placed end-ways, as shown in sketch. The save-all sluice extends from under the screen-launders to the stern of the boat under the screen-tables. The side sluices are now each 2 ft. wide and the save-all sluice …
what way does the angle iron go in a sluice box. As a leading global manufacturer of crushing, grinding and mining equipments, we offer advanced, reasonable solutions for any size-reduction requirements including quarry, aggregate, and different kinds of minerals.
angle of the riffles in my sluice box. dredge sluice box riffle angle angle of the riffles in my sluice box number of riffles for a home made sluice box riffles for 14 inch sluice box Back . Read more. Contact Supplier Home made riffles. Do's and Dont's. .
best riffle design for sluice box. Posted at:April 7, 2013[ ... The deeper the riffle ( coupled with a good angle or drop) the greater the swirl effect ... Riffles and Sluice Boxes – How do they work? Sluicing for gold A sluice box is like a long tray which is open at both ends.
Expanded metal riffles (such as the 1-10H) are superior to ... Angle iron dredge riffles should be wed somewhere in the fine gold recovery area to recover gold particles much coarser than 20 ... An example would be to have 4' of riffles at the feed end of the sluice followed by 2' of smooth base (no
Water that flows through the sluice box should be fast enough that it easily moves lighter materials (small rocks, gravel, sand, etc.) while allowing the gold to settle and hold in the riffles of the sluice. It needs to have good flow, but not so fast that you create whitewater conditions that create turbulence within the sluice box.
Customer Reviews. What REAL people are saying. Jeff from GA: ... I bought my first sluice box(one of the folding xxxx models) a few months ago and I have to say I was underwhelmed with its performance. ... in a local stream just running some dirt to get a feel for how to setup the sluice and playing with water velocity and sluice angle. Also ...
A recirculating sluice box for gold prospecting - 5
My biggest challenge on this build was making the riffles for the sluice out of steel angle stock. I am an old carpenter. I can make anything out of wood. Metalworking though is more of a challenge for me. So I hesitated for a while before taking the plunge and using steel. But I …
The slope or angle of the sluice can be adjusted, by arranging rocks under the sluice. Also the flow of water can be adjusted by placing a large rock in front of the intake end of the sluice, to divert some of the water around the box.
Why Are Dredge Sluices So Short? - Sluicing, Highbanking ...
· My question is why are all the manufactured dredge sluice boxes so short? The area we are dredging has pretty fine gold, with small nuggets to about 1/4" but that is about it (so far). ... Honestly once you get the proper angle and proper water flow you really don't need all that sluice.. ... Keene A52 sluice is to narrow and the riffles are to ...
Each time a new load of gravel is dumped into a sluice box with overloaded riffles, any gold in that gravel will wash right over the material that is clogging your riffles and out the discharge end of the box.
Jobe folding sluice - Gold Prospectors Association of ...
Based on similar experience, my view is that the folding sluice set-up that comes standard requires a high water velocity to keep the first few riffles cleared out. The short length of the riffle section 28" makes this even more critical as there are only 8 riffles in my sluice.
4" Dredge Instructions . Floats are held in place by the use of 8 push pins ... The proper sluice box angle adjustment can af f e c t ... non bearing values and larger aggregate are returned back into the water .The riffles, or gold traps in the sluice box are
Frame and Legs convert any river sluice box into a high banker. All of this can be mounted to our frame and legs system. Angle, pitch and water flow determines the speed at which the riffles clean, and can be done with our adjustable legs. Keeper pin in leg. Legs held in place with keeper pins.
How I built a recirculating sluice box for gold prospecting
How I built a recirculating sluice box for gold prospecting It was easy. You can do it too ... So I decided to build a recirculating sluice. ... The biggest change was making the new riffles out of steel angle stock. I am an old carpenter. I can make anything out of wood. Metalworking though is more of a challenge for me.
Oct 19, 2011 · Knocking up my latest sluice box, The whole idea of your sluice and all the riffles is, and providing your angles are right, » The Size of Riffles New 49ers Prospecting Club 1) The material behind a riffle should be visibly dancing during normal operation.
Angle Of The Riffles In My Sluice Box. angle of riffles in a sluice boand - iips. angle of riffles in a sluice boand - YouTube. The Hungarian riffles are made from 24 pieces of "angle iron, 11 5/8″ long, welded How To Make A Set Of best angle for my riffles Best angle for a sluice box …
The riffles in the dry washer's sluice box are pointed up towards the top of the box, instead of towards the bottom of the box. ... The sluice box is mounted on the frame at an angle, with the top of the sluice box mounted solidly to the frame, and the bottom end suspended by a small chain and springs to allow efficient vibration.
Each time a new load of gravel is dumped into a sluice box with overloaded riffles, any gold in that gravel will wash right over the material that is clogging your riffles and out the discharge end of the box. ... The final step of the sluicing is the panning of the concentrates, to get the gold out. Do this very carefully, since the material ...
How Sluice Boxes Work Running a sluice box is one of my favorite methods of prospecting. With relatively little equipment to pack in, a prospector can move a lot of material and develop a good amount of concentrates in a day.
How to SIZE a Sluice Box - Mineral Processing & Metallurgy
– one inch high angle iron riffles need double quantity i.e. 4800 ls/min of water per width meter of sluice – the slurry flowing in the box should contain <12% of solids by volume (how much water does a gold sluice need). ... THE END OF How to SIZE a Sluice Box. sluice box design.