• plans to make 2" suction nozzle for dredging GOLD ...

    Dec 10, 2014· Dredging on grizzly bars is a fools folly as ALL gold bigger than the bar spacing goes out in the trash,they pile up constantly as NOT made for constant flow dredging but slow shovel work. You absolutely must have a box tender also so a 1 man job becomes a 2 .

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  • Trash Pump/Lake Dredging Tech : 4x4 and ...

    Aug 05, 2009· That's the fun way. Or do like they did at my uncles place. The river froze over one year and one of the guy's boats at the pier had the scuppers freeze open. They let the ice melt and boat sink, then used a comealong to drag it to shore.

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  • Videos Dredges, Slurry and Dredge Pumps EDDY Pump OEM

    The pump and cutterhead work in conjunction to make this the optimal dredging system for handling compact material and pumping high solids and highly viscous materials. This pumping system can easily pump slurries up to 5000ft without the need for a booster pump.

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  • Willard Says..Service Water Willard Says..

    Service water at sufficient volume and pressure is used to: • Lubricate the dredge pump shaft in the packing gland. • Cool the pump shaft sleeve and packing. • Seal the gap between the pump shaft sleeve and packing. • Flush solids out of the gap between the bearing side plate and impeller.

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  • How to Dredge an Older Pond | Hunker

    Step 1. Drain the pond using the pump to expose the bottom surface of the pond. Direct the flow of water toward an area that can accept the water without flooding any roads, driveways or other features. Do not drain the water into a sewer system or other waterway, such as a local stream.

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  • Building a small dredge | Gold Dredging Forum

    Dec 06, 2008· The only other alternative is to use a dredge with a power jet, but then you would need to raise the water level in the stream so the power jet keeps its prime, and the only way to raise the water level would be to build dams. which are too small .

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  • MuckSuckers Making ponds healthy

    SRS uses scuba divers and highvolume suction pumps to suction the sediment out without the harmful repercussions of conventional dredging. The sediment is simply pumped to another location, either allowed to be absorbed into the surrounding landscape or contained within a geotextile container.

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  • SMALL SCALE DREDGING Mastenbroek

    Smallscale dredging 2 / 22 1. INTRODUCTION: SMALLSCALE DREDGING The word dredging probably originates from the old English word "dragan", or to draw. Dredged materials normally involve a layer of soft matter, which is formed when plants, waste, soil .

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  • Cutterhead Suction Dredges | Custom Dredge Manufacturer ...

    A new Dredge is likely one of the largest and most important investments you will make for your business. Our primary goal is to make sure that your decision to acquire a dredge from Custom Dredge Works Inc. will produce maximum return on your investment dayin and dayout for years to come.

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  • Lake Dredging Illinois Environmental Protection Agency

    mechanical dredging usually causes severe sediment resuspension and turbidity (muddiness). Mechanical dredging is better at removing hard or rocky material than hydraulic dredges. It is useful for small projects such as dredging bays and shorelines, and for small projects can be less expensive than hydraulic dredging.

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  • DREDGE SUCTION NOZZLES Willamette Valley

    make sure that when you cut or drill the hole it is an elipse shape when looking at it form the top and round from the front (see drawing) at this time take a 2" pipe nipple and trim one end with a 30 degree angle to match the suction tube for proper size of jet size see jet size on the material chart.

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  • Venturi Dredge: Why does this work? : NonSpudgun Related ...

    Jun 25, 2008· My boss asked me to do some reading on venturi dredging. I came upon this site. This is where I started my research and got many ideas from. Included are 2 pictures. The first picture is our pvc dredge. Its fed by a 4" pump that runs 750gpm 52 psi. The second is a concept called and Infinity dredge and is what I'm still working on bringing it ...

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  • Ellicott Dredges | Global Leader In Dredging Systems For ...

    Many dredges especially "old swinging ladder dredges" pump water while the operator is setting up for the next cut, but not this one. We were able to turn the pump off, with the flick of a switch, set up, then send the treatment plant heavy solids! We had zero downtime due to the dredge. "

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  • How a Dredge Pump can Vary Javeler Marine Services LLC

    As such, you need to choose a dredge pump that is capable of dealing with the material you are working with. It could be mud, sludge, or some other material. Once you identify the material, it will be easier to choose a pump that is powerful enough. How is it powered? Hydraulic powered dredge pumps are the most common.

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  • Marine Sand And Gravel Dredge Pump

    sand and gravel dredge pump, View gravel dredge pump sand and gravel dredge pump. Application: assembled with electric motor or diesel engine for sand dredging, sand pumping vessel unloading for river, lake, stream and beach, etc. Commonly it is suitable for pumping big particle matter.

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  • How do Suction Gold Dredges Work?

    Also learn the differences between a power jet and a suction nozzle. Click on dredge images above to enlarge. Suction dredges utilize a high pressure gasoline powered water pump to suck up water, gravel and gold and inject this material into a sluice through a header box. The header box dampens the rush of water and gravel...

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  • How Does a Gold Dredge Work Mineral Processing Metallurgy

    Gold Dredge Suction Pumps. A pit, 20 feet deep, was first excavated, and the sides were then sluiced down by jets of water, and sucked up through a hose pipe until a hole 200 feet square had been made, when the dredging apparatus was moved and a second pit .

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  • What is Dredging? | Benefits of Dredging, How Dredging ...

    A dredge is equipped with a submersible pump that relies on suction to excavate the debris. A long tube carries the sediment from the bottom of the body of water to the surface. The disposal of the dredged material must be conducted in compliance with .

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