Showing 01 - 12 of 139 Results

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Homemade 3 Stage Under Current Sluice Box catching Gold

I went with miners moss under all the riffles in my sluice. 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 has 3/16 inch holes.

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5 inch Dredge Produc t Model 5109H Keene Engineering, Inc.

NEW OVER/UNDER DOUBLE SLUICE BOX.. MODEL 5109H. This report is based upon data lower/under sub sluice. Once a medi an position was determined, the design of the large removable top plate which allowed the riffle tray to remain undisturbed.

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Gold Sluice Box Design Mineral Processing & Metallurgy

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. With a little knowledge, skill and creativity, a prospector can build a custom sluice box from almost any type of solid material available.

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Sluice Gate Flow Measurements Engineering ToolBox

The most commonly used specification for sluice gates in water and wastewater treatment plants is ANSI/AWWA C560-00. This specification should be used as a guidance for gates selection and operating equipment and associated hardware. Example Flow Rate through a Sluice Gate. Water flows under a sluice gate with an opening height of 0.4 m.

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» Double-screen Classification System in Dredging

This is commonly referred to as an “over-under” recovery system, and remains in popular use today. An over-under system is most commonly accomplished in the same basic sluice box, which is constructed with a removable false bottom. By this, I mean two separate recovery systems, one sitting over top of the other, in the same sluice box.

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New Vortex Sluice Sluicing, Highbanking and Dredging

Jan 09, 2014· Interesting design. I wonder if a design like this could be incorporated into dredges and be a benefit to holding onto mercury and provide an argument against the methal mercury BS. I'm thinking about something like several differnent under current chambers similar to an over under sluice

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Sluice Gate Flow Measurements Engineering ToolBox

The most commonly used specification for sluice gates in water and wastewater treatment plants is ANSI/AWWA C560-00. This specification should be used as a guidance for gates selection and operating equipment and associated hardware. Example Flow Rate through a Sluice Gate. Water flows under a sluice gate with an opening height of 0.4 m.

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Sluice Wikipedia

"Sluice gate" refers to a movable gate allowing water to flow under it. When a sluice is lowered, water may spill over the top, in which case the gate operates as a weir. Usually, a mechanism drives the sluice

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Gold Prospectors Association of America Forum All Things

What are advantages/disadvantages of the flared sluice design How does the flared sluice compared to (input flow) over/under (recovery) sluice An over-under riffle flow system is commonly accomplished in the same basic sluice box, which is constructed with a removable false bot...

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Grumpy Prospector Home

UnderFlow Sluice Design, A complete system for Placer Gold/Platinum mining. Ultimate (all) gold recovery up to 99%, depending upon the skill level of the operator. One Cleanline System, No Miners Moss, No Carpets, and No Positive riffles to have to remove and clean for your Gold recovery.

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Sluice Boxes: Keene Engineering Online

Since 1955, Keene Engineering has been providing the very best in mining and prospecting equipment. Whatever you need, we're here to help!

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Modding to a 3 stage sluice DIY PROJECTS Nugget

Sep 04, 2014· Newer Keene dredges are over under, but a 3 stage. An over under two stage works very well. I did like my newer keenes, but it took a bit of a learning curve to figure out how to best run the under part for fine gold. The best ever over under was the Keene triple wide sluice design!

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Gold Sluice Box Sale: Up to 70% Off Best Discount Price

Cheap Gold Sluice Box prices. We've gathered the best Gold Sluice Box discounts & best prices from top websites. Buy online now. We use cookies to enhance the security, performance, functionality and for analytical and promotional activities.

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D.I.Y. prospecting & mining equipment parts & supplies

These D.I.Y. Sluice boxes are DURABLE & LONG LASTING! Perfect for the person wanting to build their own personalized recovery system for their specific recovery needs. With either 4" or 5" tall sides, they are well suited for an over/under type, 2 or 3 stage sluice for your Dredge, Highbanker, Power sluice, Trommel or Hand sluice.

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» Setting the Proper Water Velocity Through a Sluice Box

By doing so, and by placing your sluice where the moving water spills over the top, you might create more than enough water flow through the box to meet your needs. It really does not take very much volume of water through a medium-sized sluice box to get the right amount of velocity, if the water is moved through the box at speed.

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Recover More Gold With The Best Sluice Box Rock Seeker

Recover More Gold With The Best Sluice Box If you've been panning gold for any period of time, you may find that it's time to move on to using a sluice box . A sluice box is a very common tool used by new and seasoned prospectors to find gold.

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Undersluice Definition of Undersluice by Merriam-Webster

Undersluice definition is a sluice covered from view or lying beneath another structure; specifically : a wasteway for sluicing out canals in which the waste escapes beneath other structures. You must — there are over 200,000 words in our free online dictionary, History and Etymology for undersluice. under entry 3 + sluice. Keep

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How to SIZE a Sluice Box Mineral Processing & Metallurgy

This week I went and asked “how to SIZE a sluice box” to the crew on a large gold prospector forum and other sluice or gravity gold recovery ‘experts’ and gathered the list of emails and forum posts here below. As you will see, in summary, most can optimize or troubleshoot a sluice box but few or none can size a gold sluice box.

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Self Feeding Sluice Box! Cool new invention takes the pain

Oct 17, 2017· This new invention will take the pain out of feeding a sluice box by first eliminating the need to hunch over or sit down beside the sluice box with a bucket precariously perched over its edge

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Spike Strike Double Deuce Gold Sluice, over under design

Spike Strike Double Deuce Sluice for Gold and Gems, over under design, takes up to 8 shovels of material a minute in good water flow. Spike Strike Double Deuce Sluice for Gold and Gems, over under design, takes up to 8 shovels of material a minute in good water flow.

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» Setting the Proper Water Velocity Through a Sluice Box

By doing so, and by placing your sluice where the moving water spills over the top, you might create more than enough water flow through the box to meet your needs. It really does not take very much volume of water through a medium-sized sluice box to get the right amount of velocity, if the water is moved through the box at speed.

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Recover More Gold With The Best Sluice Box Rock Seeker

Recover More Gold With The Best Sluice Box If you've been panning gold for any period of time, you may find that it's time to move on to using a sluice box . A sluice box is a very common tool used by new and seasoned prospectors to find gold.

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How to SIZE a Sluice Box Mineral Processing & Metallurgy

This week I went and asked “how to SIZE a sluice box” to the crew on a large gold prospector forum and other sluice or gravity gold recovery ‘experts’ and gathered the list of emails and forum posts here below. As you will see, in summary, most can optimize or troubleshoot a sluice box but few or none can size a gold sluice box.

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Self Feeding Sluice Box! Cool new invention takes the pain

Oct 17, 2017· This new invention will take the pain out of feeding a sluice box by first eliminating the need to hunch over or sit down beside the sluice box with a bucket precariously perched over its edge

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

Some modern sluice boxes are made from plastics, but this is not really an option for the average prospector. The standard design of a sluice box is very simple, and has not really changed much over thousands of years. They basic design is to lay the box in a stream or river, parallel to the flow of water.

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Products4 Grumpy Prospector

This is a medium scale of the underflow river sluice. Includes one classifier that is interchangeable. Preferred size classifier incuded with purchase, the second and third classifiers are an additional charge (classifier size options 3/32", 1/8", 1/4") and three collection traps set at 1 1/2 inch.

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Build a sluice box (boil box) Geothunder Projects

Nov 13, 2011· The following explains how to build sluice box from everyday materials. Functionality of this unit is based on a boil box or gravity column. The advantage of this design is that you are only left with metals in your boil boxes.

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Sluice Gate Module-6 University of Alabama

one of the most common gates. In order to design a sluice gate it is necessary to determine the head-discharge relationship (Q=f(H)), and the pressure distribution over the gate; this lab will be focused only on the head-discharge relationship. Figure 1 shows the diagram of the flow under a sluice gate, assuming that there are no energy losses.

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Gate Lip Hydraulics under Sluice Gate

The gates design as a flow get out under them, so, they called under flow gates which is hydraulically similar to the discharge through orifice, and also it may design to allow the water flows over it, so, the gates called the over flow gates, which is hydraulically similar to the flow over weirs. Because these important, more authors’ deals with

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Cast Iron Sluice Gates Rodney Hunt

Cast iron sluice gates provide the rigidity — minimum thimble provides maximum strength and rigidity for even the largest sluice gates operating under the most severe conditions. The back side of a Type E thimble can also be drilled to accommodate connection to a flanged pipe. pressures are uniformly distributed over bearing surfaces

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Sluice Box Design [Archive] AMDS Adventure Forum

Hi, The Klondike Placer Miners Association commissioned what in my opinion is one of the best studies ever done on sluice box design. They actually irradiated gold to make it temporarily radioactive so gold losses could be traced with near 100% accuracy. Some fallacies in current designs are revealed, some common assumptions punctured, and specific suggestions made for improving recovery.

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Sidewinder Sluice (R)

The Sidewinder Sluice has many advantages over conventional, straight trough sluice boxes. It captures Micron Gold, (100 150 mesh), much better than any other sluice because of it's design. Black Sands and other heavy materials can be periodically removed from the Sidewinder while the sluice remains in the water flow path.

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Best matting riffle combination for fine gold Sluicing

Apr 13, 2013· Miners moss has been tested over and over and proven to work. The others probably give very similar performance. 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. incorporated this combination into the

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10. POND OUTLET STRUCTURES

10. POND OUTLET STRUCTURES At the same time, open your end of the siphon, ensuring that it remains well under water. The water should start flowing through the siphon. 10. It is useful to build a simple bridge over the top of the sluice gate to allow the passage of people and light carts or barrows. It can easily be made by assembling

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Sidewinder Sluice (R)

The Sidewinder Sluice has many advantages over conventional, straight trough sluice boxes. It captures Micron Gold, (100 150 mesh), much better than any other sluice because of it's design. Black Sands and other heavy materials can be periodically removed from the Sidewinder while the sluice remains in the water flow path.

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Best matting riffle combination for fine gold Sluicing

Apr 13, 2013· Miners moss has been tested over and over and proven to work. The others probably give very similar performance. 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. incorporated this combination into the

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UnderFlow Sluice Box GOLD PROSPECTING Nugget Shooter

Jul 23, 2013· John, the underflow sluice is not an "over and under" sluice, it only has one level with 2, 3 or more U shaped channels traversing the sluice with an adjustable wall that hangs down into the center of each channel forcing all the material to go under the walls and through the U shaped channels, the gold being heavier stays in the bottom of the U and the lighter materials washes up and out the

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Sluice an overview ScienceDirect Topics

Pinched sluice and cones is an inclined trough made of wood, aluminum, steel, and fiber glass, 60–90 cm long. The channel tapers from about 25 cm in width at the feed end to 3 cm at the discharge end. Feed consisting of 50%–65% solids enters the sluice and stratifies as the particles flow through the sluice. The materials squeeze into the narrow discharge area.

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10-foot long x 10-inch wide, Commercial High Volume

The 1010 boasts a sluice box constructed of heavy duty 10-gauge [.100] 5052 sheet aluminum for maximum durability and That’s why we design and manufacture our units to have the highest "Over/Under" section of 4-Stage:

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Instruction Manual

terms of its function, the weir is a sluice, i.e. the water does not flow over it, but under it. 4.2 Features of a sluice weir The sluice weir is a relatively simply constructed, and so economical, type of weir. In its simplest form,itconsistsofbeams(1)alignedtransverseto the flow which are borne in U-shaped locators (2)

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Best Sluice Box: 5 Dream Options for Gold Prospectors

Best Sluice Box for 2016. You simply need to gather as much substrate as you could and pour them over the sluice box and use water to run them through the layers of mesh. Known for its small and compact design, the Mini Power Sluice Kit is a top option among gold prospectors.

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10. POND OUTLET STRUCTURES

10. POND OUTLET STRUCTURES At the same time, open your end of the siphon, ensuring that it remains well under water. The water should start flowing through the siphon. 10. It is useful to build a simple bridge over the top of the sluice gate to allow the passage of people and light carts or barrows. It can easily be made by assembling

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over under sluice design poolpumprepair.co.za

This is commonly referred to as an “over-under” recovery system, and remains in popular use today. An over-under system is most commonly accomplished in the same basic sluice box, which is constructed with a removable false bottom. By this, I mean two separate recovery systems, one sitting over top of the other, in the same sluice box. Get

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Cricut Design Space

Cricut Design Space

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What is the difference between the sluice gate and

SLUICE GATE :- Sluice gates are provided for controlled supply of water from any water source like Dam,canal,river etc.Their discharging capacity is very less as compared to Spillway.They are generally provided for canals or for feeding reservoir

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fluid-sluice-box prospectingchannel

The Expedition is the workhorse of Snake River's product line combining compact design with material processing speed At just under 24″ long and weighing in at 4.1 lbs, it defines portable power! It is 22 inches long at the base and 17 inches wide and allows quick and easy setup of your sluice over a wide range of water heights

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Structural Design and Evaluation of Outlet Works

The design of p ile-supported structures is covered in EM 1110-2-2906. (2) Intake structures contained within or attached to concrete gravity dams are not addressed in this Reliability under emergency flood conditions is a fundamental operational requirement of outlet works facilities. b. Intake structures.

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Numerical Analysis of Free Flow Past a Sluice Gate

Sluice gates are widely used for controlling discharge and flow depth in irrigation channels, large sewers, and in hydraulic structures. Due to the practical importance of the sluice gate as a control and metering device, the prediction of the flow characteristics under gates was