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  • Optimal design of sluice-boxes for fine gold recovery

    Sluice-box designs and their operating conditions adopted by small scale miners in PNG, who use them for the recovery of gold from alluvial deposits, vary widely. Some use small flowrates to increase the fine gold recovery at the expense of efficient separation while others use high flowrates resulting in high throughput rates with increased fine gold losses.

  • Optimal design of sluice-boxes for fine gold recovery

    1993-11-1 · This paper describes how a non-linear optimisation procedure could be used to identify the optimal conditions of sluice configuration and operating flowrate, in oder to maximise the metallurgical efficiency of sluice-boxes treating an alluvial deposit with

  • Gold Sluice Box Design Mineral Processing &

    2015-9-9 · First, the prospector/builder of gold mining equipment must understand how sluice boxes work. The boxes mimic a stream bed, allowing water and sediment to wash over it and deposit denser objects along the parts of the stream where the water

  • Optimization of Sluice box Performance

    2020-7-2 · Introduction. A sluice-box is essentially a section of open sloping channel, with some form of riffling on the lower surface to collect the concentrate -fits into the category of deposit flowing concentrators Cross-sectional area has traditionally been considered to be a balance between two opposing considerations.

  • China Gold Mining Washing Equipment Sluice Box

    Application of the gold recovery plant : Alluvial gold mining, Riversand gold mining, Clay deposit including Gravel, Laterite,Saprolite, Clay & Sticky mining-Recovery and Gravity Separation>>>>Specific Gold Mining Equipment. Sluice boxes are equipped with expanded

  • Le Trap River Robber Sluice Box Gold Sluice Stream

    2020-10-12 · Deposit the Gold bearing material in the flat portion of the sluice and allow the water to wash it through the sluice. Feed the material into the sluice at the rate that will allow at least one ridge to be seen all the way across the sluice.

  • How to SIZE a Sluice Box Mineral Processing &

    2015-7-29 · Clay and sluice boxes don’t get along well when the feed is a thick slurry. Lengthening the box brings in a periodic transverse current that reintroduces turbulence in the flow. The general flow in a sluice should be as laminar as possible to permit

  • 40+ Sluice Box ideas gold prospecting, gold sluice,

    Gold maintains its value, making the search for raw gold well worth the effort for hobby gold-seekers. The general rule in finding gold is this: Where it was found before it will be found again. Hobby prospectors generally pan for gold while people intent on finding gold in large quantities utilize sluice boxes and

  • Placer Gold Recovery Methods

    2019-2-5 · centage of the gold contained in the deposit can affect the value of the deposit. Gravity separation remains the most widely used recovery method. Gravity recovery equipment, including gold pans, sluice boxes, long toms, jigs, and amalgamation devices, has been used since the time of the California gold rush, and many

  • Digging For Gold BC Gold Adventures

    As the sluicing operations cut further up into the banks, the sluice boxes were moved forward, which left tailings deposited on the banks. It is estimated that as much as 50-percent of the gold washed right through the sluice boxes in hydraulic operations because of the large volume and velocity of water which such operations used.

  • How to SIZE a Sluice Box Mineral Processing &

    2015-7-29 · Clay and sluice boxes don’t get along well when the feed is a thick slurry. Lengthening the box brings in a periodic transverse current that reintroduces turbulence in the flow. The general flow in a sluice should be as laminar as possible to permit gravity to be the major influence in material transport. You want controlled turbulence at the

  • Sluice Box Lightweight eBay

    Weighing in at 5lbs, our travel-friendly Sluice Box has a combination of 3 popular riffle patterns consisting of 'V' Square and Hungarian<br /><br />With a 16" wide mouth and a riffle pattern length of 30",our lightweight sluice box will prove to be a welcomed addition to any gold-panning kit<br />

  • 40+ Sluice Box ideas gold prospecting, gold sluice,

    Gold maintains its value, making the search for raw gold well worth the effort for hobby gold-seekers. The general rule in finding gold is this: Where it was found before it will be found again. Hobby prospectors generally pan for gold while people intent on finding gold in large quantities utilize sluice boxes and

  • » Using a floating sluice to recover gold!- July 2016

    Sluice boxes have been used by prospectors since the earliest days of gold mining. But the normal limitation with a gold sluice is that it can only be done where the water is moving along rather swiftly over top of a shallow place in the waterway. Shallow, faster portions of waterway are common along the side tributaries of the river.

  • Gold Well Vortex Drop Riffle Sluice Box Gold

    This Gold Well Sluice was designed to recover ultra fine gold that traditional sluice boxes just might be missing. Since the majority of the available gold in the world is micro fine and ultrafine gold in the 30 micron (.0011 inch) range, you want a sluice that can collect that gold and keep it

  • Digging For Gold BC Gold Adventures

    As the sluicing operations cut further up into the banks, the sluice boxes were moved forward, which left tailings deposited on the banks. It is estimated that as much as 50-percent of the gold washed right through the sluice boxes in hydraulic operations because of the large volume and velocity of water which such operations used.

  • Placer Gold Recovery Methods

    2019-2-5 · centage of the gold contained in the deposit can affect the value of the deposit. Gravity separation remains the most widely used recovery method. Gravity recovery equipment, including gold pans, sluice boxes, long toms, jigs, and amalgamation devices, has been used since the time of the California gold rush, and many

  • GOLD PLACER DEPOSITS Earth Sci

    2017-6-26 · At other places the boxes may be set on bedrock and the dirt may be shoveled into the head of the sluice from short transverse cuts at the upper end of the pit. Work usually begins at the lower end of a deposit so that bedrock may be kept drained, and then proceeds across the deposit by regular cuts.

  • Montana Sapphire Earth's Treasury

    The primary deposit is at Yogo Gulch, where extremely fine blue sapphires were first found when gold miners had blue pebbles turn up in their sluice boxes in the late 1860’s. It wasn’t until 1894, however, that they are recognized as valuable, when a sample was sent to George Kunz at Tiffany’s in New York.

  • KPMA_Gold Gold Losses at Klondike Placer Mines

    Clarkson, P., 1989. Gold Losses at Klondike Placer Mines Gold Recovery Project (Phase 1). Energy, Mines and Resources Canada, Canada Centre for Mineral and Energy Technology, 52 p.. Abstract: Placer mining has made significant contributions to both the history and lifestyle of the Yukon and continues to provide a stable non-governmental economic force.