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    In developing plans for a homemade sluice box, the more time you spend thinking about your design, the better. You don't want to have to buy parts you don't need, but on the other hand your slice box need to catch the gold efficiently. A good plan and a good understanding of how a sluice box traps gold are important to your design.

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    Optimum Slope of a sluice 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 be used in a sluice. Most common is the use of astroturf or ...

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    A sluice box is one of the oldest simple machines used by gold prospectors. It is a “separator device” that breaks layers of river sediments until gold is separated from all other materials. The box is non-moving and simply uses gravity and the flow of water.

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    12/14/2008  Need to add a slick plate into my highbanker setup.It seems to do go,but the grizzly lets 2 big of rocks in.We added a piece of expanded metal over top of the grizzly, 3/4 inch size.The large rocks really hamper the effectiveness of the sluice.You must not overload!Did that the first year!Way overloaded the sluice not giving it enough time to ...

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    Using a sluice box to extract gold from placer deposits has long been a very common practice in prospecting and small-scale mining. A sluice box is essentially a man made channel with riffles set in the bottom. The riffles are designed to create dead zones in the current

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    8/17/2020  Heather Phillips Last Modified Date: August 17, 2020 . A sluice gate is a mechanism used to control water flow. These devices are often used in water treatment plants, mining, dams, rice fields, and cranberry bogs, among other places. The gates are typically made of wood or metal, and often slide vertically on a frame to open or close, allowing water to flow out of a space or to be contained ...

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    Water flows under a sluice gate with an opening height of 0.4 m. The width of the sluice is 3 m and the height from the water surface to the bottom of the sluice is 10 m . Since h 1 >> h 2 and the depth ratio 0.4/10 < 0,2 - the contraction coefficient can be set to 0.61 - and equation (7)

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    8/17/2020  Heather Phillips Last Modified Date: August 17, 2020 . A sluice gate is a mechanism used to control water flow. These devices are often used in water treatment plants, mining, dams, rice fields, and cranberry bogs, among other places. The gates are typically made of wood or metal, and often slide vertically on a frame to open or close, allowing water to flow out of a space or to be contained ...

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    Using a sluice box to extract gold from placer deposits has long been a very common practice in prospecting and small-scale mining. A sluice box is essentially a man made channel with riffles set in the bottom. The riffles are designed to create dead zones in the current

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