how make water power jet venture for gold dredge

Gold Dredge | eBay

A dredge heater is a great way to stay warm if you plan on dredging during the winter, or just to be prepared for the cold water at the start of next season. These plans would be a ... Gold Dredge 4" Power Jet Nozzle With 180 degree log 2" pressure fitting Made from aluminized steel making it rust proof. Welds are coated with...

Venturi / Ejector Design to Boost Water Flow using…

2 Jul 2015 ... Now I'm considering making a venturi system like you describe, to speed up the gravity-feed filling of the tank I tow around to water new orchard trees. Lift is negative ... I think Keene's jets mentioned above are generally too short for maximum efficiency feeding the intake of a gold sluice box. At least in my...


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Reclamation & Dredge Systems | Keene…

One of the most common misconceptions of the average person is in thinking that dredges are strictly used for gold mining. While this is what they ... Venturi systems can eliminate the need for costly gravel pumps. ... This system draws clean water through the pump and injects a high pressure flow of water into the power jet.


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How to dig up the bottom of a river – the endless mechanical circus…

28 Jan 2012 ... We used a power jet dredge made several decades ago for sluicing gold from rivers. The power ... Inside the power jet, a high pressure nozzle creates a venturi effect, creating suction in one direction and expelling water in another. Water ... To get the pump to suck, you have to prime it (fill it with water) first.


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Build Your Own Gold Dredge - Nevada Outback…

How to plan, design and build your own homemade gold suction dredge so you can prospect and mine for gold: from . ... Homemade Dredge on the water . Interested in building your own .... A suction nozzle is best in very shallow water; a power jet produces better overall suction. Most dredges are...


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Diver Assisted Suction Harvesting - UWSP pdf

30 Mar 2016 ... Hydraulic Gold Dredge Package. $4,924.00. • 389cc Honda gas driven pump. • 4" 2x2 power jet (venturi). • Integrated surface supply compressor. • Accumulator tank and fittings. • Hoses and fittings. ➢ 150 gallon stock tank, PVC pipe & fittings. $340.00. ➢ Mesh filter bags (min. order of 6 bags). $230.00.


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Quick Connection for HYDROFORCE Venture Suction Mineral…

2 Feb 2013 ... Introducing a QUICK and EASY way to Set-up/Connect your HYDRO-FORCE suction (venture) Mineral Prospecting (Dredge) System for Individual scale Gold and Diamond Mining.The Video feature the Hydro-Force 300 (3 inch) Nozzle with Hi-Pressure Valve and 3 inch gravel Hose with a 2 inch...


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DredgeNZ - Gold Dredge & Minelab Detector…

Folks who have never seen a gold dredge often assume that gravel is sucked into the water pump then discharged over the sluice. This is not the case. The water pump sucks fresh river water which is then injected into the dredge hose via a Suction Nozzle or Power Jet at reasonable force. This action creates a venturi effect...


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GOLD Hand Dredge Model 625 HD Hand Drdege

Model 625 HD GOLD Prospecting Hand Dredge. Model 625 HD YouTube Description of Components. The Model 625 Hand Dredge, works much like a typical motorized recreational suction dredge, only the suction is Immediate Vacuum Response (IVR) and not dependent upon a power jet venturi and impeller produced...


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The Gold Dredge -

It is powered by a high pressure water pump which is normally located on a float that sets at the surface of the water and is pumped down to the dredge via a high ... to do a more efficient job of recovery. Power Jet. Submersible Suction dredge uses power jet and suction hose. Suspended under the water by a float system.


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Getting The Best Performance From Your Dredge

You would probably say that sluice-boxes don't operate well under water. That is true so why don't we put a removable cover on top of it? I cannot give you a number for efficiency improvement but it is a huge factor. This would help improve the poor efficiency of the straight jet venturi (power jet). This type of jet has the worst...


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Dredging - Wikipedia

Capital: dredging carried out to create a new harbor, berth or waterway, or to deepen existing facilities in order to allow larger ships access. Because capital works usually involve hard material or high-volume works, the work is usually done using a cutter suction dredge or large trailing suction hopper dredge; but for rock...


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Shacks Gold-Dredging

The water pump and engine you use is important because you need to produce enough high-powered water through the venturi/jet to create good suction without running the engine too hard and pushing too much water through the sluice. Engines are typically not made to run at full throttle for hours on end, so just keep...

The book "The Modern Gold Dredge" by Bruce W.…

Many have gone on the assumption, that it was directly associated with where the power-jet intake; called a "venturi"; was placed. ... A sluice out on the water for example, will move around from the currents and because there is many changes in the amount of material build-up and water flow across the sluice itself, it will be...


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Placer Suction Dredge - 12" - Shell…

6 Oct 2017 ... Our 12" placer mining suction dredge can process 300 yards of material per hour. ... The 12-inch Gold Dredge. Each dredge is designed and ... $3.5 million USD. POWER PLANT: 550 KW Onan Cummins Diesel Generator powering a 450HP electric motor driven Pioneer water pump capable of 6,000 GPM.


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Proline Gold Mining and Prospecting Equipment/Gold…

In addition, the configuration of the flare dredge allows the sluice box to sit much closer to the water, improving power and efficiency. The result of this design is ... One major problem associated with all gold dredges over the years has been the far too frequent rock jams in the dredge hose, particularly at the power jet.


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Steve's Guide to Suction Gold Dredges -…

A gold dredge is powered by a motor and pump. A common misperception is that gravel is sucked through the pump. The pump actually pumps only water, which is delivered to a venturi type device (called a power jet or a suction nozzle) which indirectly creates suction in a larger hose. The solves two problems. First, gravel...


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Hydro Force Nozzles - Midwest Prospector

The Hydro-Force™ 250 can be used with almost any 2.5" dredge or highbanker, or it can be powered by an inexpensive trash pump. ... The Hydro-Force™ can also be used underwater, just like a conventional suction nozzle, with the added advantage of a built in water jet for flushing gold off of the bedrock. Hydro Force™...


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5" dredge @ frame - Kellyco pdf

through the Keene Library of Books, such as The Gold Miners Handbook, Dredging for Gold or Advanced Dredging. Techniques. The vacuum on a portable dredge is created by a "venturi principal". A volume of water is pumped through a tapered orifice (jet), by a special designed water pump. A high velocity jet stream is...


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JW's Gravity Powered Dredge - Equipment - PayDirt…

JW's Gravity Powered Dredge: This game of gold hunting, mining, fossicking, panning, sluicing, detecting, dredging etc & what ever else you might want to call it sometimes. Never ceases to ... Make sure the top flexi pipe hose end is in the water, Usualy jammed under a rock or in a crevice. Then I race back...


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Suction Dredging for Gold - The New 49ers

Dredging is usually done in ten feet of water or less, but some work is done at greater depths. The following video segment demonstrates how modern suction dredges are constructed with the use of venturi jet systems. These allow gravel and streambed material to be directed into a gold recovery system without having to...


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Customizing Your Dredge - January 2013 (Vol. 82, No. 5) -…

I purchased "grip hoists" in small, medium and large sizes—including the largest one they make—and set about making a deep water, high suction dredge that could do the job. Six-inch dredges were the ... For instance, the Venturi was invented long before 1900, yet it is still the heart of the suction gold dredge. There are a...


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infinity jet - TreasureNet

16 Aug 2010 ... infinity jet. So i recently bought a water pump and a 3" Keene power jet and it kinda works. The setup won't pick up rocks any bigger than 1" and I'd like a little more power ... The reason I'm using this is because it costs $0.50 per ft and the closest place I can get dredging hose from sells it for $5.00 per ft.


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DREDGE SUCTION NOZZLES pdf

up to 6", you can purchase exhaust pipe with that outside diameter (OD) Power jets measure the same as for pipe and will be discussed ... 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 ... suction nozzle can also be used on under water dredges.


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products page - Alluvial Pacific - Mining Equipment And…

Gold Mining, Diamond Mining, Dredge, Solar Equipment. ... Portable Hydro Power Turbine USD $490.00. Portable Hydro Power Turbine. Stainless steel Power Jet 4-inch. USD $190.00. Stainless steel Power ... Stainless steel venturi power jet 5-inch with 2 logs. USD $330.00. Stainless steel venturi power jet 5-inch with 2...


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Suction dredging for gold - Goldbay

In addition, bits of gold that are so weighty are isolated from the other materials and then trapped. Gold dredging is commonly done less than ten feet of water; however, there are cases when the work is carried out at considerable depths. Nowadays, modern suction dredges are built with the use of a venture jet system.


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How do Suction Gold Dredges Work? - Gold Fever…

How does a gold suction dredge suck up gravel? 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.


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Home Made Dredge Plans and Photos | Home made | Pinterest…

In rivers, gold will concentrate in areas where the water velocity decreases. But, gold moves when the water velocity is high. Therefore, imagine what the water flow would look like AT FLOOD STAGE, and try to identify areas where the water velocity would decrease. Typical areas would be in front of large boulders, on the...


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Keene's Catalog PDF - Armadillo Mining Shop pdf

The power jet is ideal for most conditions and provides greater suction power. All models include 15 feet of suction hose. For extremely shallow water conditions, a suction nozzle is ..... This line of 6 inch dredges is our personal favorite, for the serious gold prospector and the professional requiring portability and.


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3 inch prototype dredge nozzle - YouTube

29 Aug 2015 ... 3 inch prototype dredge nozzle. This is the first dredge nozzle I've ever built. I figured if I was going to build one, I'd try to build the best, highest suction nozzle possible. From researching dredge nozzles, this was supposed to be the best style, the next was a tri-jet, then a standard suction nozzle. From the...


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