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  • Building the Gold Dredge Some Tips YouTube

    10-7-2012· Fine tuning the gold dredge, working with the mats, riffles, expanded metal, dredge hose connections and more. Skip navigation Sign in. Search. Sluice box properly setup and how to use,

  • » The Size of Riffles New 49ers Prospecting Club

    Most recovery systems on suction dredges use fixed riffles to trap gold out of lighter streambed materials as they are washed through a sluice box by a flow of water. 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

  • Riffles and Sluice Boxes How do they work?

    But over time this lighter material will slowly migrate down the box and finally exit out the end of the sluice, washing out from behind one riffle, and then the next. During the flow, as heavier material comes through, it also settles behind the riffles, and as lighter material migrates, the heavier stuff settles slowly to

  • Keene gold dredge 3 stage sluice assembly.Fine gold

    30-8-2011· Keene gold dredge 3 stage sluice assembly.Fine gold modification (modified second stage) Gold sluice box fluid bed- mobile How to Run a Stream Sluice Stream Sluice Riffles and Matting

  • riffles in a dredge sluice box sjamarijs

    3-12-2009· Custom Built Highbankers, sluice boxes, dredge, hand Heckler Fabrication can custom build you a quality Highbanker, Power Sluice, Trommel Sluice Box, Concentrate sluice, Dredge sluice box, Hand sluice box, or modify/update your existing recovery system w/ any of our many options.

  • Gold Dredge Sluice Box IN ACTION! YouTube

    23-10-2012· 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 the video I didn't notice it until it

  • » Setting the Proper Water Velocity Through a Sluice Box

    How much water velocity is directed over the box directly affects how much material will stay behind the riffles. When the correct amount of water force is being put through a sluice, its riffles will run about half full of material, and the material can be seen to be dancing and vibrating behind the riffles (concentrating) when the water is flowing.

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

    Keene A51 Mini Sluice Box Regular price: $119.95 Sale price: Keene Super Mini Sluice Box A-51A Regular price: $115.00 Sale price: SALE ! ! Miners Moss Nomad Sluice Carpeting Regular price: $29.95 Sale price: Sluice Matting ribbed vinyl mats Regular price: $12.95 Sale price: Riffles and Sluice Boxes How do they work? Sluice Box Clean Up Tips

  • Gold Sluice Box Design Mineral Processing & Metallurgy

    Sluice box designers have incorporated riffles, curves, and even carpet to catch the finest particles. They maybe magnetized in areas to catch tiny magnetic minerals to which gold particles are sometimes attached, and may be made out of materials such as wood, plastic, aluminum, or a combination of them.

  • » 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.

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

    Heckler Fabrication, D.I.Y. Parts & supplies for your sluice box needs. Everything needed for modification of your Highbanker, or any other equipment using a sluice box. & See our Custom Build page on our site if you want us to custom build one for you.

  • the size of the riffles in gold dredges Bryan D. Hellmann

    Plan, Design and Build a Homemade Gold Sluice Box. The heavier materials like gold remain behind, trapped by the riffles. You don't really need any special sluice box plans the exact size is really not all that critical, suction gold dredges

  • Keene Miracle Sluice Mat Gold Fever Prospecting

    Keene Miracle Sluice Mat Please note: the previously black mat is now a green color to allow for greater definition between the black sands and the matting. This makes it much easier to fine tune and properly adjust your sluice box. After 3 years of development and over 25 prototypes, Keene Engineering developed the perfect concentrator riffle.

  • dredge box with hungarian riffles

    @ Best 98+ Gold Dredge Sluice Box Design Get all the For more about that trip and the sluice box, see SIERRA CITY PROSPECTING. Thanks for checking out my gold mining adventure.. The Gold Dredge,Inc.The riffles, or gold traps in the sluice box are best described as "Hungarian Riffles".

  • How to SIZE a Sluice Box Mineral Processing &

    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.

  • Hydraulic riffles for fine gold Gold sluice, Riffle

    Collecting gold is fun! A sluice is a long, variably sized box, typically of stone or metal, gently inclined less than 20 degrees, where running water can wash significant quantities of gravel quickly. Gold and other heavy minerals, as described above, are retained in a series of riffles conventionally arranged along the floor of the sluice.

  • Sluicing 101 Keene Engineering, Inc.

    Modern prospectors use sluice boxes to work literally any type of gold-bearing gravel which can not be worked with a suction dredge. Sluice box's have been successfully used to process gold bearing gavels located in dry desert areas, by utilizing transported in

  • Riffles In A Dredge Sluice Bo mightybluesbelgium

    Riffles In A Dredge Sluice Bo . Make a dredge out of a sluice box making a sluice dredge gold vreceduin make a dredge out of a sluice box ,a gold dredge is a placer mining machine that extracts gold from sand, gravel, and dirt usingthe original methods to