• How To Set The Right Sluice Box Angle (Tips & Tricks

    A sluice box should be set with a 4-8 degree angle. Another rule of thumb is that the sluice should be angled to drop roughly 2 inches per foot of length. The exact angle depends on the size and weight of the material, the riffle design, and the speed of the current. As you see, there is not a universally applicable answer as to what angle

    Sluicing How to set the correct angle on your sluice box

    EZ Sluice Box Regular price: $65.00 Sale price: Jobe Yellow Jacket Sluice Boxes (36" OR 45") Regular price: $129.95 Sale price: Keene A51 Mini Sluice Box : Keene Super Mini Sluice Box A-51A : Miners Moss Nomad Sluice Carpeting Regular price: $29.95 Sale price: Sluice Matting ribbed vinyl mats Regular price: $12.95 Sale price: Riffles and

    How to Set the Right Angle on Your Sluice Box YouTube

    21/03/2016· Use the "Sluice Setter" Digital Pitch Gauge to set the right angle on your sluice box, so you're not losing precious gold! Then please go to sluicesette...

    How To Build and Operate Sluice Boxes

    riffles. Alternatively the box is divided into two sections, one with and one without riffles. Unfortunately this type of dual-mode sluice is a compromise that sacrifices recovery efficiency somewhat but it saves most of us from having to carry two different boxes, or multi-level boxes into the field. For fine gold recovery the use of riffles can actually be a negative design element and most

    Riffles and Sluice Boxes How do they work?

    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. You have to adjust these variables several times until you get the material moving through the box at the correct speed leaving just the black sand in the riffles.

    sluice box riffle straight YouTube

    16/10/2011· Kind of funny how people always talk about special riffles and angles. Here is just a plain straight bar. Great close in vortex.

    How To Set Up a Sluice Box : Complete Guide (Angle,

    Step 2: Level the sluice box and stabilize. Make sure that the sluice box is leveled sidewise. You want the flow of water to be even across the riffles and mattings to ensure optimum performance. Lengthwise, the sluice box should be angled around 5-7 degrees to

    How To Build and Operate Sluice Boxes

    riffles. Alternatively the box is divided into two sections, one with and one without riffles. Unfortunately this type of dual-mode sluice is a compromise that sacrifices recovery efficiency somewhat but it saves most of us from having to carry two different boxes, or multi-level boxes into the field. For fine gold recovery the use of riffles can actually be a negative design element and most

    SLUICE BOXES 101 RECOVER MORE GOLD WITH MY

    Most sluice boxes use riffles or obstructions blocking free flow of gravel and sand from being washed out of the sluice box. These restrictions form low pressure pockets behind which gold will accumulate. Gold is 19 times heavier than water and approximately 16.5 times heavier than rock (quartz) so gravity separation can be accomplished. What makes sluicing for gold so challenging is that the

    Best angle for a sluice box CARIBOO GOLD MINERS

    21/11/2013· My box is 24" wide and runs rough top conveyor belt at 20gpm per foot of sluice width. I find best recovery is between 1/2 and 5/8th of an inch per foot. I see gold migrating a lot at 3/4 and I loose a fair bit at 1" per foot. This is on material screened to 6 mesh in my grizzly. It would depend on a lot of things, but I figured I would share what worked for me!

    How do I get the right angle on my sluice box? YouTube

    27/11/2014· This video shows how to use a SLUICE SETTER to set the pitch of your sluice box. There are different opinions about what angle is right, but once you determi...

    » The Size of Riffles

    Riffles are baffle-like obstructions, fixed in place along the bottom of the sluice box. They are designed and positioned so that there is a back-pressure created that sucks water and material behind the riffles from the flow over top. When the correct water-flow is directed over a riffle, the back pressure keeps the area just behind the riffle in a state of continuous fluid suspension. This

    sluice box angle? water flow? General Gold Discussions

    My home made box is a metre long & I work on no more than 50mm of water going through. Due to using my rail system to classify as I put the shovel loads onto my box & not using riffles as such (I use a rubber mat with a raised diamond pattern), I place my pan at

    » Double-screen Classification System in Dredging

    In my view, it is more effective to do this in the lower section of the sluice box (though, I mounted the riffles for larger gold in the upper-end of the sluice on my 8-inch dredge). I know this viewpoint is not popular with some prospectors, because they do not want to chance losing a bigger piece of gold that is allowed to get so close to the end of the recovery system.

    Dredge Adjustments Gold Prospectors Association of

    13/01/2015· If the sluice does not have enough angle, the sluice box will "load up" causing the riffle openings to. fill with unwanted excess material. Too much angle will cause the material to flow too fast, resulting in loss of values, evidenced . by the riffles running too clean. The optimum adjustment of a properly working sluice box is evident by only a. portion of the riffle is visible while

    Gold Sluice Box Design 911 Metallurgist

    09/09/2015· Sluice box and riffles are one of the oldest forms of gravity separation devices used today (Photo 3). The size of sluices ranges from small, portable aluminum models used for prospecting to large units hundreds of feet long. Sluice boxes can be made out of wood, aluminum, plastic or steel. Modern sluices are built as one unit although sluices formed in sections are still used. A typical

    angle of sluice drop

    02/12/2012· Every sluice and its installation is an animal of its own. What bedding is used, water depth, size of material and even heavy mineral content. The key, from my experience, is install a bit on the shallow slope side, get water running and then feed the sluice a shovel load or three. Adjust angle until heavy minerals are just wiggling on the bedding.

    angle for sluice box riffle hotelshalam

    The proper sluice box angle adjustment can af f e c t the recovery of values. If the sluice does not have enough angle the sluice box will "load up" causing the riffle openings to fill with unwanted excess material. Too much angle will cause the material to flow too fast, resulting in loss of values, evidenced by the r i f fles running too clean. If the sluice box is working properly

    How do I get the right angle on my sluice box? YouTube

    27/11/2014· This video shows how to use a SLUICE SETTER to set the pitch of your sluice box. There are different opinions about what angle is right, but once you determi...

    » Double-screen Classification System in Dredging

    In my view, it is more effective to do this in the lower section of the sluice box (though, I mounted the riffles for larger gold in the upper-end of the sluice on my 8-inch dredge). I know this viewpoint is not popular with some prospectors, because they do not want to chance losing a bigger piece of gold that is allowed to get so close to the end of the recovery system.

    Sluicing tips Gold Prospectors Association of America

    19/03/2018· Each sluice and setup is a bit different. the general rule of thumb is 1 inch per foot and a deep V water flow at the head of the box. me personally it depends on which sluice I am running. with the gold hog stream sluice I run it at about 1 1/4 1 1/2 inch per foot drop, a hair steeper than some. if I am running my martin stream sluice with riffles I run it about 1 inch per foot. if I am

    Proper Sluice Set Up Gold Prospecting Mining Equipment

    The sluice should be set at a downhill angle that allows the material to briskly flow through the sluice. The higher the volume of water available, the shallower the angle will be. Shovel material into the sluice at the flared end as close to the end as possible so that the material is washed over the entire length of the sluice. Do not overload the sluice with material. Pace your shoveling so

    Design And Build Of Sluice And Riffle

    Angle Of Riffles In A Sluice Boand. Va-gold view topic 2" dredge build sluice box design 2 should i make the angle of my sluice adjustable 3 if i make why would go put 34 in riffles in a 2in dredge especially on the east coast the entire steel riffle assembly could then be lifted out of the sluice during cleanupsthere are two right-angle "ears. Read More; Diy Sluice Riffle Shape. 2009-9

    How to Retrieve Fine Gold! (Fine Gold Recovery Guide

    You also want to make sure to set up your sluice box with the right angle and water flow, to maximize fine gold recovery. Too fast of a flow will inevitably cause some of the finer gold to get flushed out of the sluice. Also, avoid letting the water flow through the device for long periods of time without feeding streambed material to it. In this case, the water will cause such particles to

    Hydraulic Riffles ? Gold Dredging Forum

    03/12/2009· If you increase the angle of your sluice box you will start to lose more of the fines. The problem is the packing of the black sand between the riffles that do not allow the fines to go to bottom and much of the fine gold will sail down the sluice box over the black sand and back into the river. Its worth mentioning here that because of the abundant black sands in New Zealand South Island

    Le Trap Sluice Box Review & Comparison To Other Sluice

    15/01/2020· The Le trap sluice box measures 46″ long and 15″ wide rim to rim. The interior is about 13″ wide when measuring in between the bottom of the pan. It is 4″ deep with riffles designed in a two-step pattern. This riffle design eliminates the need for carpets and mats while still capturing very fine flour gold or

    Hydraulic Riffles ? Gold Dredging Forum

    23/04/2011· Looking at yours I would say try increasing the slope of the sluice box a lot more so the riffles are just about vertical, repeat Vertical, Backward sloping angle iron riffles are high energy riffles and work best with a fast flow and a steeper slope to make them effective. Probably better in a static plant than a dredge. So far I have been getting some interesting results that need to be

    angle of the riffles in my sluice box

    Changing the angle of a sluice box changes the angle of riffles or the shaped-bottom. This affects how it works. Increasing the sluice box angle or the flow of water or both, will increase the speed of the water. This gives gold less time go settle. More

    angle for sluice box riffle hotelshalam

    The proper sluice box angle adjustment can af f e c t the recovery of values. If the sluice does not have enough angle the sluice box will "load up" causing the riffle openings to fill with unwanted excess material. Too much angle will cause the material to flow too fast, resulting in loss of values, evidenced by the r i f fles running too clean. If the sluice box is working properly

    what angle should rifles be in a sluice

    The proper sluice box angle adjustment can af f e c t the recovery of values. If the sluice does not have enough angle the sluice box will "load up" causing the riffle openings to fill with unwanted excess material. Too much angle will cause the material to flow too fast, resulting in loss of values, evidenced by the r i f fles running too clean.

    » Double-screen Classification System in Dredging

    In my view, it is more effective to do this in the lower section of the sluice box (though, I mounted the riffles for larger gold in the upper-end of the sluice on my 8-inch dredge). I know this viewpoint is not popular with some prospectors, because they do not want to chance losing a bigger piece of gold that is allowed to get so close to the end of the recovery system.

    How to Retrieve Fine Gold! (Fine Gold Recovery Guide

    You also want to make sure to set up your sluice box with the right angle and water flow, to maximize fine gold recovery. Too fast of a flow will inevitably cause some of the finer gold to get flushed out of the sluice. Also, avoid letting the water flow through the device for long periods of time without feeding streambed material to it. In this case, the water will cause such particles to

    Dredge Adjustments Gold Prospectors Association of

    13/01/2015· If the sluice does not have enough angle, the sluice box will "load up" causing the riffle openings to. fill with unwanted excess material. Too much angle will cause the material to flow too fast, resulting in loss of values, evidenced . by the riffles running too clean. The optimum adjustment of a properly working sluice box is evident by only a. portion of the riffle is visible while

    Hydraulic Riffles ? Gold Dredging Forum

    03/12/2009· If you increase the angle of your sluice box you will start to lose more of the fines. The problem is the packing of the black sand between the riffles that do not allow the fines to go to bottom and much of the fine gold will sail down the sluice box over the black sand and back into the river. Its worth mentioning here that because of the abundant black sands in New Zealand South Island

    Hydraulic Riffles ? Gold Dredging Forum

    23/04/2011· Looking at yours I would say try increasing the slope of the sluice box a lot more so the riffles are just about vertical, repeat Vertical, Backward sloping angle iron riffles are high energy riffles and work best with a fast flow and a steeper slope to make them effective. Probably better in a static plant than a dredge. So far I have been getting some interesting results that need to be

    Dry Blowers for Gold Recovery

    19/02/2013· The removable riffle box catches the gold on the upstream side of the riffles. The ideal angle of the riffle box when operating is 21°. When the riffle box is removed from the dry blower, lay a piece of plastic (bin liner) on the ground and empty fines onto it. Be sure to brush the riffles to remove any fine gold trapped in weave of cloth

    Why Are Dredge Sluices So Short? Sluicing,

    12/04/2013· Fast water moving down the sluice pushes the gold down the box. If the water is moving slow enough, the gold will drop out quickly. If its moving too fast, it will work its way down and out of the sluice no matter how long it is. That's why long slices are kind of irrelevant. Old timers used to make real super long sluices like 1000 feet long. It didn't help much in fine gold recovery. I

 

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