angle for sluice box riffle



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Sluice Boxes

Sluice Boxes : Sluices are long, narrow "boxes" that water passes through when put in a creek or stream , 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 , Replace the carpet or miners moss and riffle tray ....

HOW TO BUILD A SIMPLE SLUICE

The riffle tray is then re-positioned in the sluice box over the carpet Four 025" diameter holes are then drilled through the 1" x 1" rails on the riffle tray, through the carpeting and the bottom of the sluice box...

4 Dredge Instructions

The proper sluice box angle adjustment can af f e c t the recovery of valu If the sluice does not have enough angle the sluice box will "load up" causing the riffle ,...

Sluice for gold

Sluice for gold Gold Sluicing , There needs to be 1 inch of drop for every foot of sluice box This angle will help the tailings to move down the sluice box It is also the proper angle for the gold to settle into the riffle trays The 45 inch sluice box requires almost 4 inches of drop between the flare and the end of the riffle tray...

Sluicing 101

After the riffle section has been removed, roll up the matting which lines the bottom of the sluice box trough and thoroughly rinse it off in a pan or bucket The concentrate rinsed from the matting will contain most of the gold accumulated during the run...

sluice box rifle angle

Patent US2183157 - Sluice box riffle - Google Patents- sluice box rifle angle ,Try the new Google Patents,Such sluice boxes are commonly used in placer , Fig 4 is a fragmentary detached perspective view of a portion of a rifle Riffle Study - Gold Prospecting Equipment ....

The Clarkson Study Fine Gold Recovery

The Clarkson Study Fine Gold Recovery - Free download as PDF File (pdf), Text File (txt) or read online for free , The most common sluice riffles include expanded metal, angle iron (Hungarian) and flat bar , (or large distributor) boxes with sluice gates and adjustable side runs Mines H90 and W used raised stationary screening ....

Sluice Boxes & Stands

Material should immediately start flowing down sluice box 50% of material is being trapped behind riffles while the other 50% washes down stream (This is the proper flow & angle when this is achieved)...

Three Stage Sluice Instructions

The proper sluice box angle adjustment can af f e c t the recovery of valu 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 ....

Sluice Box Design [Archive]

I find pages 17 and 18 to be particularly interesting in light of the way the typical consumer sluice box riffles are designed According to this report, the height, spacing, and configuation of the riffles are all important to ,...

Riffles and Sluice Boxes

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...

angle of sluice drop

Dec 02, 2012· I use inches for angle of sluice box, could someone please explaine degrees which is used today , BUT the angle being too steep and the drop riffles being too 'hyper' active and poof blowing everything out, it is a fine line for sure , angle of sluice drop Gold Claims For Sale | Advertise with us | Gold Prospecting Forum ....

Prospecting Equipment

Prospecting Equipment , The simple sluice box is not used much in the desert since these are placed in a stream with running water However these form an integral part of other equipment such as rockers, high bankers and dry washers , At the down slope end is a grating or screen set at a 45 degree angle The second section is a riffle box ....

HOW_TO_BUILD_AND _RUN_A_SLUICE

WELCOME TO THE NEW 2014 , The Hungarian riffles are made from 24 pieces of "angle iron, 11 5/8" long, welded with the back edges 2" apart between 48" lengths of 1" strap iron , With your sluice box setup and ready to operate, you startup your pump and the water starts flowing into the shovel-in box Then you simply start shovelling in ,...

A recirculating sluice box for gold prospecting

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 decided it was high time I learned how to weld anyway So I bought some 1/2 x 1/2 angle ,...

Thompson Drywashers

Top box classifies at 3/8 of an inch Adjustable feed gate allows you to decide at which rate you would like your material to flow into the sluice area Riffle tray comes out easily during clean up by lifting a latch...

Gold Well Vortex Drop Riffle Sluice Box

The Vortex Drop Riffle Sluice Box uses cutting edge new technology to get all the gold down to 400 mesh (most traditional sluices can recover about 60 mesh) Manufacturered in the USA by a father and son team...

Otimum degree angle for your sluicebox?

Jul 22, 2012· Then adjust so that the material clears the sluice in roughly 3 seconds for a box 3' or 3 meters long There is no hard fast rules as gagoldguy pointed out Where the problem comes in is sluice width, water depth, bedding and material size...

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...

Placer mining

Placer mining / ˈ p l æ s ər / is the , with barriers along the bottom called riffles to trap the heavier gold particles as water washes them and the other material along the box , The grizzly is a set of parallel bars placed at a 45 degree angle over the main sluice box, which filter out larger material The undercurrent variety ....

Custom Sluice Boxes made to order

So what I have found that works for the handmining, is to use only a couple of designs, 8-10-12 inch wide sluice systems with a 15 in 12 inch pitch running 30-45-60 gallons per minute respective to size of sluice width, with ½ inch angle iron riffles spaced at 1 ½ inch apart for the first 12 inches of the sluice box and for the last 24 ....

sluice box riffle straight

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

riffles in a dredge sluice box

angle of riffles in sluice boand angle of riffles in a sluice boand lvdivseacadets angle dredge sluice Search dredge sluice box riffle angle to find your ....

jobe sluice instructions

JOBE Sluice Instructions Thanks for purchasing your new JOBE stream sluice JOBE sluices are designed with a , The first three riffles in the sluice are stream riffles, that are shorter and designed to work with minimum water flow These are followed by three , JOBE Power Sluice Header Box...

sluice box angle? water flow?

Hey I am no expert on sluice boxes and mine is home made and different to yours but yes angle does matter Too shallow of angle and beaches" form and clog up behind your riffles in your sluice stopping gold getting trapped in the miners moss...

Placer mining

The grizzly is a set of parallel bars placed at a 45 degree angle over the main sluice box, which filter out larger material The undercurrent variety includes additional, auxiliary sluice boxes where material is initially filtered...

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

Nov 27, 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 determine what works ,...

A Reciprocating Sluice Box for a Trommel

Oct 26, 2014· Expanded metal sections were held down with 1 inch angle iron bolted at the side walls Riffle section was held down with metal wedges, via an angled slat, to pound wedges against We covered the sluice box floor & side walls with conveyor belting , A Reciprocating Sluice Box for a Trommel...

angle for sluice box riffle

angle for sluice box riffle 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...