Background

diver less dredges gold mining equipment

Diver Operated Dredge and Pump System - EDDY Pump

After 4-weeks of operation under the 5-foot thick ice of Nome, Alaska, the Subdredge can truly be seen as the new wave of the future in underwater gold …

Gold Dredge - Mineral Processing & Metallurgy

The surface dredge can easily be operated with or without diving equipment. The underwater dredge is the less popular of the dredges available nowadays since it is less efficient at recovering as fine a gold as the surface …

Gold Dredges of the Yukon and Alaska - questconnect.org

Mining dredges were used in Yukon and Alaska from the turn of the century on into the 1950s to extract gold from the land. Several of these old dredges still litter the landscape of the North, one of the most visible reminders …

ALASK4 GOLD DREDGING - Mining History Association

ALASK4 GOLD DREDGING Clark C. Spence IT THE BEGINNING of the twentieth century, two new mass-production techniques were beginning to revolutionize the mining industry. One was the low­ grade copper technique pioneered by engineer Daniel Jackling in Utah. The other was the gold dredge, first

Suction Nozzle or Power Jet? - Gold Panning & Gold …

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 …

Master the Art of Suction Dredging for Gold ...

Suction dredges are sized based on the diameter of their suction hose. They can be anywhere from 1.5" up to 10" or larger on custom commercial applications. Most popular dredges are around 4" to 6", which are a good size …

GOLD MINER'S TOOLS :: Dredges by Keene Engineering …

6.5 HP 3 Inch Ultra Mini Dredge. 3500P. Model 3500P comes complete a 6.5 horsepower engine, 20 feet of 3" suction hose and a 14" x 48" sluice box. Equipped with a P180 pump, our new oversized jet flare and jet with suction …

Dredge Pumps | Best Results. Non-Clogging. Hassle-Free ...

Diver-Operated Dredges and Pumps Diver-operated dredges and pumps get into areas where conventional dredging equipment cannot reach for removing large quantities of sediments and soils. Dredge around water intakes, wet-well, tanks, cooling towers, and other locations.

Mini Dredges | Piranha Pumps & Dredges | Piranha Pumps ...

A gold mining dredge has a totally different design and purpose. A gold mining dredge utilizes a device called an "eductor" in conjunction with an inexpensive water pump. This system is designed to pump a lot of water with low slurry content a relatively short distance, usually into a nearby sluice, and is normally deployed by a scuba diver.

The Legal Maze of Small-Time Gold Dredging in Alaska ...

Nome has been the epicenter of gold mining in Alaska since the Alaska Gold Rush blasted off in 1898. Prospectors and miners have been finding gold deposits in the hills and creek beds around Nome for over a century. They have also been finding placer gold (i.e., unrefined gold) in the seabed of Norton Sound, an inlet of the Bering Sea.

Keene Engineering

The world leader in portable mining and prospecting equipment. Family owned and operated since 1955. Due to a delay in the supply chain, some orders may take longer to ship. If you need your order in a hurry, please give us a call so we can …

» Outfitting a Suction Dredging Project

Two Pro-Mack 5-inch dredges were used to find rich deposits on this river in Cambodia, before a 10-inch production dredge was brought on line.. As an example of this, a 4-inch dredge can effectively sample down to around 4-feet …

Proline Gold Mining and Prospecting Equipment/Gold …

Diving Takes dredging to a whole new level. The ability to dive takes dredging to a whole new level. It's safer, more enjoyable, allows for dredging in deeper water, and for more extensive bedrock cleaning. We carry a variety of …

Gold Mining Equipment - Msi Mining

Trusted Industry Leader. MSI has a Large selection of Gold Mining Equipment or Gold Recovery Equipment with Gold Machine like Gold Trommel, Gold Wash Plant, Sluice Box, Gold Shaking Table, Portable Gold Trommel, Portable Gold Wash Plant, Gold Concentrator, Gold Dredge, Gold Jig, Duplex Jig, Grizzly Feeder, Conveyor, Gold Enhancer our well known Monster Red and …

Manufacturers of gold mining & prospecting equipment

Manufacturer the Javelina Gold Trommel, one of the most portable and easiest trommels to operate. Yuba Industries / Yuba Gold Fields. 4738 Hammonton Rd. Marysville, CA 95901 USA. Ph: 1-530-742-7164. Manufacturers of custom placer gold mining equipment for every stage of recovery.

Sea Technology Magazine, "Remote-Operated …

Weighing less than 5,000lbs and being 172-inch long x 62-inch wide x 60-inch tall, also makes it easily deploy-able in most applications at a low cost. The weight of the Sub-Dredge is dispersed over large rubber tracks that make it very rugged and able to deal with diverse conditions with only creating 3.3 psi of ground pressure.

Gold DREDGES for Sale - Keene - Mining Equipment, Gold ...

Gold DREDGES for Sale - Keene - GOLD DREDGES FOR SALE - FREE SHIPPING SPECIAL!!!All sizes of suction dredges are available from portable backpack dredges to large 8" commercial gold and diamond ...

Gold Dredges - The Best Gold Dredge, Dahlke Dredge Mfg ...

Our Experience in Gold Recovery Goes Back More Than 50 years . We feel the most important part of a gold mining dredge is the ability to recover and retain gold. Our recovery trays (sluice boxes) utilize a combination of Hungarian forward …

GOLD MINER'S TOOLS :: Catalog of Gold Mining …

Industrial Gold Mining Equipment: Processing Plants, Trommels, Concentrators, Jigs. Gold Claimer Concentrator. 12-feet Feed Conveyor. Oregon Pioneer 15 YpH Portable Trommel. Oregon Pioneer 30 YpH Portable Trommel. …

Gold Mining Equipment | Surveyors Exchange Co. | Alaska

RP-4 mineral concentrating tables are factory designed with a raised riffle for maximum recovery of micron-sized gold and platinum metals. RP-4 gravity concentration tables weigh 60 lbs. and require about 8 to 14 gallons of water per minute. Table comes equipped with a 1/2 HP motor and uses 8.6 amps. 1/3 HP motor is optional at 6.8 amps."

Gold Dredges at Kellyco | Gold Prospecting Equipment

Gold prospecting is an addiction for many people, as they love working to find the shiny metal in creeks and rivers. While many will start off with a simple gold pan and classifier, others graduate to gold dredges. Gold dredges are excellent for finding …

Armadillo Mining Shop – Dredges – Dive Equipment – …

If you have questions about any of our products or which ones are right for you, please feel free to call us – 541-476-6316. If you find yourself in Grants Pass, Oregon, stop by the Armadillo Mining Shop to see our gold nugget display! …

DredgeNZ shop - Gold Panning & Gold Dredge Supplies

DredgeNZ online shop sources and supplies mining products and accessories from overseas manufacturers. Buy online - Gold Panning & Gold Dredge Supplies. Gold Dredge Specialists in New Zealand – Gold Panning, Detecting and Mining Equipment for Beginners and Professionals.

» Suction Dredging for Gold

This is much easier than having to carry equipment around and set it up in each new area, as is required in conventional mining. Most gold dredgers use just two types of knots to secure their dredges in the waterway: (1) several half-hitches, or: (2) a bowline knot. The bowline knot is used where a non-slipping loop is needed at the end of a line.

Pontoon Dredge Pumps | Small and Mini Dredges | DAE …

The DAE Pumps pontoon dredge pump performs ideally as a small sand dredge. With the heavy-duty submersible slurry pump that is capable of suctioning sand, silt, sediment, and slurry, the pontoon dredge pump skims across the bottom, pumping material, sand, and debris. The angled bars allow the pontoon dredge pump to move freely as heights increase and decrease.

Highbankers - Fred's Gold Panning & Mining Supplies

Gold Hawk 10 Highbanker (Made in Canada by Fred's Gold Panning & Mining Supplies) This highbanker has a adjustable hopper made from special plastic polymers that will keep it looking new for years, it features a wrap-around …

Dahlke Dredge MFG - Gold Dredges

Here at Dahlke Dredge we offer state of the art gold mining equipment at competitive prices. Whether you are planning an epic gold dredge outing, looking for a custom sluice box, venturi eductor, pump or air compressor, we are here to help you! We manufacture all of our gold dredges in house, in the USA. The pros at Dahlke Dredge have decades ...