rifles sluice dredge difference

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BC Placer - Sluice Boxes and Highbankers

A sluice box has a bottom and sides but is open on top and at least one end. Water flows through the sluice and gold-bearing material is fed into the upstream end. Modern sluice boxes are made of steel, aluminum and plastic. Small sluice boxes used for prospecting and hand-digging operations are generally 10 to 18 inches across and 3 to 5 feet ...

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dredge question : Prospecting

The 2.5" is highly portable and you can cover a lot of territory with it. In my opinion, having run dredges for some number of years, the 3" dredge is an oddball. It's too close is size and weight to the 4" to really make a difference and it takes as much work as a 4" so why bother with a 3" dredge. Either get a …

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My Home Made 3 Stage Under Current Dredge Sluice Box

I think a new dredge sluice box in this size is well over $500. Its funny that the biggest expense was the Miners moss. I really do believe that this stuff makes a big difference in fine gold recovery. Its probably second to the flare in improving the fines recovery. Recommended Metal Detectors For Gold Prospecting: ...

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Dredge Questions - Gold Panning, Sluicing, Dredging ...

Nov 09, 2018· Now we are trying to upgrade the sluice because where we dredge we could find larger nuggets. Im thinking of placing a section with taller riffles like in the picture with the rails only going half way or 3/4 of the sluice and leaving the same size riffles or making it bit …

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How to OPERATE a Sluice or Dredge properly.

Operating a Dredge . The best method to dredge is to use a prodding motion with the end of the vacuum hose this way it will greatly reduce the blockages and stoppages. If you are using a power jet, remember not to lift the nozzle out of the water for more than a few seconds or you will have to re-prime the hose.

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What Sluice Mat is Best - GoldHog Gold Prospecting Equipment

Things like what type of equipment do you have, the GPH running through it, gold size in your area, etc… are important. EXAMPLE: I have a Keene Highbanker- 10″ wide, 48″ long, running a 2″ trash pump rated at 8000 gph, but I measured it and the actual gph going through the …

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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 : 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:

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Highbankers

The sluice tray is formed from strong 3/16" abs, that works like a gold magnet due to the polarity difference between gold and plastic, and because it's lightweight, vibrates slightly from the water flow, causing gold to drive even deeper into the drop riffles ( much like it does in nature when it hits bedrock cracks).

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Recreational Gold Panning and Dredging Regulations – Utah ...

Recreational Dredging* – using a vacuum or suction dredge with an intake diameter of up to four inches and having a rating of up to twelve horse power or using hand-operated sluice equipment and related tools. Dredging must occur beneath the existing water surface or upon non-vegetated sand and gravel bars within the active stream channel for ...

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Riffles and Sluice Boxes - How do they work?

The sluice is usually placed in a creek or river and can be held in place by larger rocks, packed in against the sides or one large flat rock on top. 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 …

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SLUICE BOXES 101 | RECOVER MORE GOLD WITH MY GOLD …

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 quartz, so...

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» Search Results » double sluice

Jul 08, 2020· Since the sluice box in the 6-inch Precision was much wider than a normal Le Trap sluice, the prototype required quite a lot of work in a cut and paste project (using of 4 or 5 Le Traps) to create the first underlay recovery system for a dredge.

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Dredging - Wikipedia

Dredging is the excavation of material from a water environment. Possible reasons for dredging include improving existing water features; reshaping land and water features to alter drainage, navigability, and commercial use; constructing dams, dikes, and other controls for streams and shorelines; and recovering valuable mineral deposits or marine life having commercial value.

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Gold Well Vortex Drop Riffle Sluice Box - Gold Prospecting ...

The Goldwell sluice is the familiar gravity sluice type operation with some subtle and important differences. Most notable is that the sluice does not generally require as much water flow as other typical sluices, and that the angle of operation for successful capture of gold is extremely forgiving, making …

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Keene's 2.5" Highbanker and Dredge Combo – Sunny Mountain ...

This unit is based off the A52 sluice box with hopper and leg kit. It's powered by the lightweight Honda GX50 and P90 pump. This unit is capable of processing yards of dirt. The 2.5" nozzle will provide a noticeable difference than the traditional 2" suction nozzle. Highbank, dredge or do both. It's your choice.

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Hydraulic Riffles ? | Gold Dredging Forum

Aug 17, 2010· Hydraulic riffles are placed under a classifier screen and how much classifier screen you use to cover the riffles is very much depend on the type of dredging you will do and what gold you will be dredging. But much of whats involved in adapting hydraulic riffles to a production dredge is just common sense.

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Difference Between Short Head Y Standard Pdf

make the difference between ... when the first safety standard was approved to protect the heads ... equipment procured meets the cited ANSI standard. Existing PPE. Read more. Standard Deviation and Variance - Math is Fun - Maths ... Standard Deviation and Variance. Deviation just means how far from the normal.

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Leveling the Keene 2" Gold Buddy Dredge - Gold Prospectors

Sep 11, 2018· putting a rock on one side is OK but check how the dredge is laying when it is running you don't want the end to be much under the water around a 1in per ft. drop of the box length for starter. This isn't a sluice box. It is a floating dredge. You can control the angle by moving the motor forward or backwards.

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How to SIZE a Sluice Box - Mineral Processing & Metallurgy

Jul 29, 2015· Slope of a sluice is generally in the range of 1.3 cm (1/2 in.) to 3.8 cm (1-1/2 in.) per 30.5 cm (1 ft), depending on the size rock in the feed. To move the larger rocks down the sluice requires a steeper slope or more water, both of which cause greater gold losses. Any number of types of collectors can.

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Dredge Cleanup Frequency - GOLD PROSPECTING - Nugget ...

Jul 30, 2011· I had been using the factory gray carpet, but this year I got the deep V groove mat under blue miner's moss for the sluice box. Tom recently bought a used 3 inch dredge from another panning buddy who was needing money - I 'think' it is a Proline. We haven't been out …

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New and Used Trommels for Sale | Gold Trommel Design ...

New and Used Gold Recovery Trommels for Sale Savona Equipment is your source for New, Used, and Reconditioned Trommels for recovering gold and other precious metals from placer mining operations. We supply 18 inch, 30 inch, 48 inch, 60 inch, & 7 foot Trommels for Placer Mining.

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The Gold Dredge - Keene Eng

The Surface Dredge. As the heading ofthis section implies, surface dredge floats on the surface of the water. The material is pumped to the surface through a suction hose into an efficient sluice box that is capable of recovering extremely fine particles of fine gold. The sluice box …

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Gold-prospecting-Denver | Goldstrike-Adventures-Colorado

The all-new Keene A52 Super Sluice is a high-production hand sluice that you will set up in the river and shovel directly in to. The main difference between this new sluice and the standard A52 is that the A52S or "Super Sluice" has a punch plate screen which will classify the material as you go.This allows larger rocks and gravels to roll off the screen while capturing gold and heavies in the ...

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Optimization of Sluice box Performance

operation of the sluice-box. The gold particles must be delivered to the plane of the riffle surface. The rifles must be capable of attracting the gold particles in it's storage. The riffles must hold the gold particle in preference to other minerals. The gangue must be transported out of sluice-box.

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How to Sluice - Keene Eng

The sluice boxes in the days of the 49'ers were very similar to the ones of today. The primary difference is the construction and materials. Sluice boxes were built of heavy wood planks, because lumber was cheap and easily obtainable. Today's sluice boxes are constructed of light weight aluminum and steel.

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The new aaawave "The Sluice" 8GPU mining frame assembly ...

Apr 01, 2018· There is a pretty big difference between the Sluice and the Dredge models in assembly time. For the Dredge model I would set aside a couple hours, maybe 3 hours even. Now I don't want to give any spoilers but this ended up being my favorite mining frame so far. Continue reading and you will see why.

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Keene's Super Sluice Box - A52S – Sunny Mountain Prospectors

Be sure to check out the Grizzly Gold Trap if you're looking for a self-classifying, fluid bed sluice. What is the difference between the A52 and the A52S, well, one is "Super". The A52S is Keene's newest product that makes classifying river gravels a thing of the past. The classification screen protects expanded metal

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Best mini-sleuce? - Gold Prospectors Association of America

Apr 30, 2014· The 7 lb. weight of a quality 50" folding sluice is worth it when compared to the gold capture of a mini sluice that weighs 3 or 4 lbs. No matter which one you decide to use, the secret to keeping larger quantities of smaller gold is classification. Classify to a quarter inch and classify the results to 1/12 inch.

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Why Are Dredge Sluices So Short? - Sluicing, Highbanking ...

Apr 12, 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.

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Suction Nozzle or Power Jet? - Gold Panning & Gold Dredge ...

Power Jet Gold Dredge. A Power Jet is more efficient because there is a shorter pressure hose from the pump and therefore less friction losses. The Power Jet enters the suction line just before the sluice, which means the gravel is being "pulled" up the hose rather than "pushed" by a suction nozzle. This can help prevent blockages.

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, Inc,

, Inc. Weed dredge. sells for than just gold dredges. We manufacture a custom dredges that are built for reclamation industry. Dredging out lakes, Clearing Docks, Recovery of artifact and much more. Currently we are focusing on a dredge that removes invasive weed species.

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Keene 2" backpack dredge? - Alaska Outdoors Forums

Sep 01, 2010· 08-24-2010, 19:07. I hav'nt used the 2" for the simple fact that you can buy a 4' sluice box and shovel the material in it. I think the box cost's about $100.00 and it weighs about 20 lbs at most. Get a classifier and stick it above the mouth. If you are just playing in streams, you might want to think about this.

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Best matting riffle combination for fine gold - Sluicing ...

Apr 13, 2013· The extra long sluice let the blond sand clear out and retained the gold, there was some rubber matting also at the head of the sluice and under some of the carpet. The miners moss eventually clogged and started missing fine gold after running a few yards.

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