riffles in a dredge sluice box - samregiopool.nl

5" Keene Gold Dredge with Full Over/Under Sluice Box - $5250 (sacramento area) Great gold catching machine, with O/U box. 2 sets of riffles in the box, lower set classifies 3/16" and smaller material, while upper set processes like a normal single stage sluice box. …

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PDF 5 inch Dredge Produc t Model 5109H - , Inc

TION DREDGE EQUIPPED WITH NEW OVER/UNDER DOUBLE SLUICE BOX.. MODEL 5109H. This report is based upon data developed on tests conducted in the East Fork of the San Gabriel River, San Gabriel Mountain Range, State of California. The site of the test was approximately one-half mile south of the confluence point of the East Fork

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reno for sale "gold dredge" - craigslist

Hand Dredge for Gold Mining - X-Stream Hybrid Pro Hand Dredge $170 (gld > Pine Grove) ... 4" Keene Over/Under Sluice Box $375 (sac > sacramento area) ...

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The Size of Riffles

The nozzle-restriction will allow a 4.5-inch rock to be sucked up into the sluice box. And there must be enough water-flow through the sluice to keep the 4.5-inch rocks, and everything else that is being sucked up, flowing through and out as tailings. Otherwise, the material will build up on the dredge and sink it in very short order!

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Flared sluice? - Gold Prospectors Association of America - Forum

An over-under riffle flow system is commonly accomplished in the same basic sluice box, which is constructed with a removable false bottom, consisting of riffles and under catchment. The larger the dredge, the faster and more powerful water-flow must be, to wash larger rocks and a larger volume of material through sluice.

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Gold Dredge Sluice Box IN ACTION! - YouTube

Underwater, in-box video of a suction dredge sluice box in action! This is a 4 inch dredge running in Western Oregon. I apologize for the typo at the end of ...

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Testing homemade suction dredge high-banker. - YouTube

8/19/2017 · Back in 2008 I build my first homemade suction high-banker with my dad Erich. It was a 3 inch suction nozzle and sluice box was made out of 3/4" …

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The Gold Dredge - , Inc

High pressure water is pumped into the bend, creating a vacuum at the end of the bend. It is powered by a high pressure water pump which is normally located on a float that sets at the surface of the water and is pumped down to the dredge via a high pressure hose.

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Hand Dredge : 5 Steps (with Pictures) - Instructables

Hand Dredge: A hand dredge, also called a gold sucker, is basically a pump that will allow you to suck up material. They allow you to suck up material in hard to reach places, such as under rocks, and in crevices. Hand dredges work extremely well if you are…

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Gold Cube Concentrator - GoldHog Gold Prospecting Equipment

The Gold Cube is a very good piece of equipment and Doc has owned one for about 6 years. However according to him he rarely uses it now due to the Multi Sluice being a more versatile concentrate cleaner and having the ability to STRIP concentrates down to almost pure gold. (Plus… let's face it he makes the Multi Sluice) I too sold my gold cube and run the Multi Sluice now just because I ...

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How to Build a Gold Dredge | Our Pastimes

4/12/2017 · Gold dredges are machines that pulls the gold from dirt or gravel. The gold dredge became popular at the time of the California Gold Rush, when thousands were looking for the shiny mineral as a way to strike it rich. Gold dredges can be as complicated as machinery attached with vacuums and hoses, or as simple as a homemade gold dredge sluice box.

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Picked up a 3″ dredge w/ over under sluice – HELP… With

6/9/2017 · 3" dredge. Keene P180 pump (rated 250gpm and I will try to get better information this weekend if I can get out) Briggs and Stratton 5hp motor. 14"x48" sluice with crash box. Punch plate in crash box for the lower sluice. Lower sluice has carpet with expanded metal and riffles. Upper sluice has carpet with riffles

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DIY: Water Dredging | eHow

Dredging is a method of underwater excavation that is used to clear sediment and foliage from the bottom of creeks, ponds, lakes and other water sources. Accumulated sediment can pose a navigational risk to boats and can create a bad smell and cause excessive aquatic vegetation to grow.

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Gold Dredge - Dredging - Dredges - Gold Prospecting Mining

A power sluice "washes" material you shovel into it, whereas a dredge sucks material up from a stream through a hose and deposits it into the sluice. #7835 shown above comes with BOTH types of header boxes AND a dredge nozzle and a bigger pump so you can use this one piece of mining equipment as either a sucking dredge or as a power sluice.

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Under-currents and sluice design [Archive] - AMDS Adventure Forum

If your water runs 2 inches deep in a 2.5 inch diameter dredge sluice, than you put 8 inch rocks into a sluice flowing with 2 inch deep water, well those larger rocks will be going nowhere. Standard widths on a 6 inch single box dredge sluice are around 20 inches wide.

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Building the Ultimate Dry Washer - DIY PROJECTS - Nugget

Oct 31, 2008 · The method of vibration rotating parallel to the sluice induces a rotational vibration that forces heavies to one side of the sluice where it piles up and starts to walk over the riffles. Steel riffle trays are heavy and poorly fitted to the box allowing paths around or under the riffles for fine gold to be lost.

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Double-screen Classification System in Dredging

I believe effective classification must be accomplished in stages; first to drop the 3/8-minus material out of the higher-velocity flow which is needed to push the larger-sized material through the sluice. Then, drop the 1/8-minus out of the much slower flow necessary to …

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Plan and design your own home made suction dredge for gold

Sometimes good used dredge parts are available to start a homemade dredge. ... That's the boat I am in and I've mined some pretty good gold nuggets over the years with the suction dredges I have owned. ... I've actually done up a whole separate webpage on designing and building the sluice box for your home made dredge.

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Plans to design and build your own gold prospecting equipment

Jun 26, 2016 - Free Plans to design and build your own dredge, sluice, dry washer; gold Prospecting Equipment:

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Sluicing - How to set the correct angle on your sluice box

Sluice Boxes: 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 Regular price: $119.95 Sale price: Keene Super Mini Sluice Box A-51A Regular price: $120.00 Sale price: SALE ! ! Miners Moss - Nomad Sluice Carpeting Regular price: $29.95 Sale ...

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How To Build and Operate Sluice Boxes - Heckler Fabrication

popular ‘Gold-Buddy’, a ‘Grizzly’ brand mini high-banker, A G-1 power sluice, A Proline 2-1/2” power sluice, a D&K 1-1/2” power sluice and a new Keene 2-1/2” power sluice. All of this equipment was used in two different locations having very different dispositions and types of gold between March 12th and August 5th of 2009.

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Gold Sluice Boxes for Prospecting - Water Powered - Gold

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.

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5 inch Dredge Produc t Model 5109H - , Inc

TION DREDGE EQUIPPED WITH NEW OVER/UNDER DOUBLE SLUICE BOX.. MODEL 5109H. This report is based upon data developed on tests conducted in the East Fork of the San Gabriel River, San Gabriel Mountain Range, State of California. The site of the test was approximately one-half mile south of the confluence point of the East Fork

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The New Dredge's maiden voyage

Happy days! The dream has finally come true and here I am posing with a nearly new Keene 4" over-under sluice dredge with air. I have dredged with other prospectors 4" and 5" dredges as shown in other pictures on this web site but the only dredge I own is my "old faithful" 2 1/2" shown in many pictures.

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How to Build a Wooden Sluice Box | Our Pastimes

9/15/2017 · Sluice boxes have been used by gold prospectors for years. The bottom of a sluice box is covered with so-called riffles. Water flows through these riffles, and any heavy material, including gold, falls to the bottom of the box while the water and any lighter materials, including sand, is washed away.

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Why Are Dredge Sluices So Short? - Sluicing, Highbanking

Hi, We are new to dredging, but have been researching and experimenting for the past year and we are starting to design, build, and refine our existing 3 homemade dredge/highbanker combo that we put together last fall. My question is why are all the manufactured dredge sluice boxes so short? The ...

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Cheap Sluice Box That GETS GOLD : 7 Steps (with Pictures

the grating has holes in i so dont worry about that. i used a soldering iron to punch a hole 4 1/2 from the front of the carpet if you dont have one you can heat up a screw driver and punch the hole.drill a 1/4" hole in the steel 11 1/2" from the front of the sluice and use a 1/4 " bolt wing nut and 2 washers to hold it in place

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16 Gold sluice ideas | gold sluice, gold prospecting, gold

May 11, 2019 - Explore Rick Cutler's board "Gold sluice" on Pinterest. See more ideas about gold sluice, gold prospecting, gold mining.

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Gold Sluice Box Design - Mineral Processing & Metallurgy

Metallurgical ContentSluice Matting: Rubber and CorduroyGold Sluice FabricationHow to Operate a Gold SluiceHow to Feed a SluiceSupplying Water The gold sluice box is an efficient alternative to panning for gold, allowing the prospector to quickly sift through a much greater volume of sediment. Although many affordable varieties are available to purchase, they are even more affordable to build ...

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Homemade 3 Stage Sluice - vagabunden-50.ch

Homemade 3 Stage Under Current Sluice Box catching On the three stage sluice, most of the gold gets caught in the upper part. As the gravel passes down the box, it goes over a screen, which in my sluice …

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Setting the Proper Water Velocity Through a Sluice Box

On most suction dredges, the volume of water being moved through the sluice continues at the same steady flow during production speed. So adjusting the water velocity to set up the dredge right is accomplished by changing the slope of the sluice box itself—which will speed up or slow down the flow of water over the box.

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Gold Power Sluices & Highbanking | Gold Prospector - Gold

Gold-bearing gravel and dirt is shoveled into the hopper of the power sluice / high banker, which is mounted at the top end of the sluice box. Inside the hopper is a "grizzly" which is a series of sloping rods that filter out larger rocks. Also in the hopper are spray bars that shoot water onto the gravel and dirt that you shovel into the hopper.

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How to Make a Sluice Box - DIY - Build a Homemade Sluice Box

For any homemade sluice box design, it is highly recommended that you add some type of material under the riffles to aid in fine gold recovery. Gold miners are generally an inventive group, and building a homemade sluice box is both cost effective and fun.

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how to make a sluice dredger

Take the pipe insulation and place it over the threads, then screw on the 1/2" cap.How to Make a Sluice Box - DIY - Build a Homemade .DIY Sluice Box. Building a sluice box for gold prospecting is a fairly simple project, and is a fun way to spend the winter in preparation for the mining season.

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Highbankers - Power Sluices

Power Sluices and Hibankers are available at the bottom of the page - scroll down. About Power Sluice / Highbankers: . A power sluice, sometimes called a highbanker or hibanker, is a piece of gold prospecting equipment that uses a pump to force water through a sluice box to mimic the natural flow of a river. Sometimes a hopper box with spray bars and a classifier sieve (or grizzly screen) is ...

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