Suction Nozzles

Suction nozzles are suction creating devices on a gold dredge. They in effect push material through the suction hose to the sluice box. Suction tips are used in conjunction with power jets, the other type of a suction creating device used on a floating dredge.

Nozzle Design

Jet Nozzles. Jet nozzles (Webster et al. 1995; Morgan et al. 2008; Spur and Brucher 1995) create a powerful stream of fluid with the aim of wetting the wheel surface and breaking through the boundary layer of air that surrounds the wheel due to its rotational speed.Jet nozzles, or free-jet nozzles (Spur and Brucher 1995), can consist of a single-tube or multiple …

want to build a 4 inch dredge. | Gold Dredging Forum

Suction nozzles and power jets are, without a doubt, the most problematic dredge parts for a home build dredger to construct. Most dredge builders would be far better off to buy a power jet or nozzle from an established dredge manufacturer. I can't add any more about building a nozzle or power jet than what has been previously written in this ...

Dredge Power Jet with jet log

Power Jet nozzles are available in various sizes from 2" to 6" with either single or twin jet logs. Prices are subject to change without notice. Choose your size from the drop down menu next to add to cart button. First pic shows a 2 inch power jet, second pic shows a 6 inch power jet with TWIN jet logs. PRICES SUBJECT TO CHANGE WITHOUT NOTICE.

Dredge Power Jet with jet log

This Power Jet has dual jet logs which utilize two 2 inch pressure hoses and pump intake couplings, one on each side. The jet has an outside diameter of 4 inches which fits inside a 4 …

Nozzle Design

the nozzle wall and large nozzle side loads may develop due to the random uneven separation of the exhaust jet. These loads must be included in the nozzle structural design process. Again, assuming a 1-D flow of a perfect gas, the, gas properties at any nozzle area ratio

Keene 2.5" Jet Flare Dredge Suction Nozzle with P160

Keene 2.5" Jet Flare Dredge Suction NozzleThe KEENE 2½" JET FLARE design provides excellent fine gold recovery. The jet flare and water level sluice box gives 30% more suction allowing dredge depths of nearly 30 feet. Also, the state-of-the-art sluice box is more efficient, compact, and lighter. A 150 GPM pump mounted on a Honda GX120 drives the 2½" dredges.

Keene 2" Backpack Dredge with Power Jet

Keene 2" Backpack Dredge with Power Jet. This super high powered backpackable dredge is equipped with a lightweight and quiet heavyduty 2.5hp Honda 4 cycle engine that nearly doubles the power from our previous …

Suction Gold Dredge Basics

A common suction gold dredge design - 4" surface dredge with air compressor. In normal operation a gold dredge is run by an operator at the intake nozzle who directs the …

This dredge design confuses me

Suction nozzle as opposed to power jet, awesome for working shallow waters, some can even be adapted to dry land. They don't have as much suck as a power jet, but if you lift a power jet dredge nozzle out of the water, or even close enough to the surface where it can and will form a vortex then it will lose prime and all of it's suction until you reprime it, which one …

Design and Dynamic Analysis of Pipeline Dredging Devices

design requirements, a self-rotation nozzle head was selected, composed of a nozzle head front cover, a nozzle head back cover, and a de fl ector, a nozzle, and other necessary parts. The four ...

DREDGE SUCTION NOZZLES

Suction nozzles can easily be home made, with some ingenuity & a few tools. No matter what size you want to make from 1" up to 6", you can purchase exhaust pipe with that outside …

DIY small scale hand dredging understanding the basics

The power jet is one of the most important components in a dredge system. There is a bal-ance of the right components proper jet design that matches the pump curve, clean pumping . and …

Keene Dredge Suction Nozzles

A suction nozzle works in a similar fashion to a power jet except instead of being attached directly to the header box the nozzle is attached at the far end of the material hose. A vacuum is created which sucks up water and gravel but the material is pushed through the hose instead of being sucked through the hose, as in the case of the power jet.

Dredge Jet Nozzles Design

Keene Dredge Suction Nozzles. The power jet also allows deeper dredging because the power jet will lift material higher than a suction nozzle can push it. The disadvantage of the power jet is that the power jet and supply hose must be kept under water at all times. Therefore they do not work very well when working in shallow water.

Proline Mining Equipment Dredge/Highbanker Combo 2"

All Proline combos use a highly efficient power jet for producing dredge vacuum rather than the old-fashioned suction nozzle which is inherently less effective and more cumbersome to dredge with. We have developed a unique system in which all dredged material enters the unit under the grizzley rather than above it.

Some dredge basics If you are in...

Mismatch Nozzle/Jet: It is critical to have the proper jet or suction nozzle design to optimize suction. So many customers attempt to build there own dredge, and they

Power jet vs. suction nozzle | TreasureNet The Original …

Power jet for deeper and keeping the nozzle under at all times, the slug of air stops the suction, then when you get it back the action blows through the sluice and disturbs what is in the sluice. may blow gold out! ... The box design and flare are your greatest assets to recovery BUT any increase in % retention is always helpful-tons a au 2 u ...

12vDC 1.5" Dredge

Has anyone on here made one of these? I'm planning to make one but I have a question before I get started. My pla is to use 2 bilge pumps for this and have 1 run the suction nozzel and the other working a power jet. Hose eill be 1.5 or 2 inches and the hose feeding the suction nozzel probably be 3/4". I'll also have a flush nozzel to use as needed. So...using 1000 …

Dredge Nozzles & Power Jets | Pro Music

Sound System Design; Stringed Instrument Repair; Close; About. Brand Website Links ... Pro Music is proud to offer Hydro Force, Jobe, Keene, and Proline gold dredge nozzles and power jets including dry land suction nozzles with free …

Design and Dynamic Analysis of Pipeline Dredging …

2.2 Nozzle Head Working Theory and Structural Design 2.2.1 Nozzle Head Selection and Design In this research, high-pressure water was applied as a dredging medium, and impact force was induced

Emily Riedel's Guide to Building a Bering Sea Gold Diver Dredge

A suction dredge is basically an underwater vacuum cleaner that sucks (hopefully) gold-bearing gravel up and runs it through a sluicebox. In more technical terms, suction is created by a motor-driven centrifugal pump moving high pressure water into a jet system, creating a low pressure area that creates suction at the nozzle via the venturi effect.

Keene 3" Jet Flare Dredge with P180 | A&B Prospecting

Keene 3" Jet Flare Dredge. The KEENE 3" JET FLARE design provides excellent fine gold recovery. The jet flare and water level sluice box gives 30% more suction allowing dredge depths of nearly 30 feet. Also, the state-of-the-art sluice box is more efficient, compact, and lighter. The 3" dredges are powered by P180 GPM pump with a Honda GX200 ...

Plan and design your own home made suction dredge for …

First you have to decide if you want a suction nozzle or power jet type. The suction nozzle puts the high-pressure water in right at the nozzle. A power jet puts the high-pressure water in just …

Dredge nozzle question | TreasureNet The Original Treasure …

A nozzles ability to reach out and pull material in is more based on jet/hose/nozzle diameter than suction strength. Generally speaking the reach is equivalent to the diameter. ie.. 2" nozzle has 2" reach. 4"nozzle has 4" reach. While this can vary some, you will still need to get close with a 1 1/2 nozzle.

Diy dredge nozzle help | TreasureNet The Original Treasure …

This is my 1 1/4" venturi suction nozzle for my electric micro dredge powered by a 24v 3700gph bilge pump. I figure the pump will produce about 10 - 12 psi. The 3D printed …

Proline Mining – 2.5″ Dredge/Highbanker Combo W/Jet Nozzle

Proline Mining – 2.5″ Dredge/Highbanker Combo W/Jet Nozzle. Out of stock. SKU: Proline-1025 Categories: Gold Prospecting, ... dredge/high-banker combos are popular with prospectors who are looking for maximum versatility in a well-built proven design. If the 2″ combo isn't up to your needs, and if the 3″ combo is a little too large ...

Suction Nozzle or Power Jet?

Power Jet Gold Dredge. A Power Jet is more efficient because there is a shorter pressure hose from the pump and therefore less friction losses. The Power Jet enters the suction line just before the sluice, which means the gravel is being "pulled" up the hose rather than "pushed" by a suction nozzle. This can help prevent blockages.

Proline Mining – 2″ Dredge/Highbanker Combo …

The Proline 2" combo offers the versatility of being operated as either a 2" dredge or a small highbanker which can be fed continuously with a small shovel. It's powered by our HP100 pump, which is direct coupled to a Honda GXH50 …

Dredge Suction Nozzles

Ideal for shallow water dredging - these dredge suction nozzles are precision manufactured by Jobe and Keene from thin-wall plated steel tubing with machined orifices to create maximum …