how make water power jet venture for gold dredge

Jun 18, 2016· An uncontrolled blasting ofwater, air and slurry into any system (air in thepower jet) is never a good thing. When you loose control of the % ofwaterand slurry going into the 'banker', and end up with an air filled 'blaster', nothing works as it should

Apr 16, 2014· There needs to be a "watercolumn" in the hose for the pressure line to push. It is the "watercolumn" moving toward the sluice that causes the vacuum. It is the location of the nozzle orjetin the line that determines the effect. Gotta have that push on the "watercolumn" to get the suction you need

If you want to do serious excavations with a suctiondredge, you must leave the opening of the suction-nozzle as large in diameter as possible, while still reducing it enough to eliminate un-necessary plug-ups inside of the suction hose orpower jet. Streams, rivers and creeks ingold-bearing areas are constantly being replenished with freshgold

12v MiniGoldSuctionDredgewith 3D PrintedPower JetShort Version: Testing my latest project - A battery powered mini suctionjet for golddredging. It runs off a 12v bilge pump (any pump doing 800+gph) and is small enough for the creeks, streams, even an irrigation ditch where I'm testing it

Rated at 94 psi and 8120 gph this pump can actuallypowera 4″dredgenozzle. You can also run at idle and use for highbanking. The only WARNING is that these pumps need to have a FINE SCREEN over the intake. They do not like sand and gravels. We have run 1.5″ to 4″dredgenozzles off this single pump

Jul 28, 2011· Apower jetputs the high-pressurewaterin just before the sluice box. Asuctionnozzle is best in very shallowwater; apower jetproduces better overallsuction. Most dredges arepowerjets, but some smaller units, 3 inches and smaller aresuctionnozzles. I recommend thepower jet

2.5"Dredge. This machine was a trend setter when it first came on the market and it continues to be one of our best sellers many years later. When other 2.5" dredges were floating on inner-tubes, required a suction nozzle for producingdredgevacuum, and had limited depth capabilities, the Proline 2.5"dredgesat on sturdy pontoons and used apower jetfordredgevacuum

No one makespowerjets like Proline. Rather than using a steel casting, we use a more efficient machine formed eductor. The result is a lighterpower jetwith better vacuum and easier priming. Thesepowerjets are popular with those building their own dredges or who simply wish to improve performance on dredges they already own. 1.5"Power Jet

Jun 18, 2016· An uncontrolled blasting ofwater, air and slurry into any system (air in thepower jet) is never a good thing. When you loose control of the % ofwaterand slurry going into the 'banker', and end up with an air filled 'blaster', nothing works as it should

This causes theventuresuction at the suction hose end to be of a uniform & equal amount over the whole exit end of the suction hose where as with a side entry pressure hose in to apower jetthewaterpressure entering at the angle to the mainpower jettube is going to deflect off the side of thepower jet& isnt blasting down thepower jet

Mar 29, 2019· Bathtub test of the two pumps in cleanwaterpicking up small bits of lead solder and air rifle pellets using the same suction nozzle. Very little difference between the two tests probable the 1 1/14 discharge is at capacity with the smaller pump running at similar discharge pressure and this is a positive for my test given the smaller pump costs less than half the money and uses 13amps vs

Our 15” Shelldredgeis the largest suctiondredgein Alaska, 123 ft. in length and 25 ft. wide, setting 3 ft. abovewaterline to deck. Thisdredgeis capable of processing 400 cubic yards per hour and generates 500 KW to run the concentrators and electrical controls

3-inch – 6.5 HP Intek ProJetFlareDredgew/Power JetCall for Price Read more; 3-inch – 6.5 HP Intek ProJetFlareDredgew/Power Jet& Compressor Call for Price Read more; 3-inch – GX200 HP HondaJetFlareDredgew/Power JetCall for Price Read more; 4-inch – 6.5 HP HondaJetFlareDredgew/T80 Compressor Call for Price Read more

I'm looking to pitch the idea of building a platform anddredgeto the other 3 parties with the idea of splitting the build cost 4 ways. Depending how nice a pump and hose we buy, I'm guessing this would be a $2000-2500venturedivided 4 ways. Then it is just a matter of chipping in time and we are not in a rush

May 12, 2009· A single 2-inch Promackdredgegot to New Zealand back in the early 90s which I once saw in the Arrow. A Kiwi must have imported it himself and the poor guy would have spent a small fortune getting it into New Zealand back then. And when I saw him he was using it todredgeinto some ground that I had already been through with a 5-inchdredge

The fast-movingwatercreates the suction in thejet. This way the sand and gravel does not actually go through the pump which would quickly wear it down. There are two main types of jets currently being used. These are 1) The suction nozzle where thejetis up at the nozzle point, and 2) Thepower jetwhere thejetis located up near the

May 01, 2013· A basic guide togoldsuctiondredgecomponents and operation. … Every inch of vertical lift above the surface of thewaterrobspower/suction from the system. … to a venturi type device (called apower jetor a suction nozzle) which indirectly … Second, a 2" pump can easily be used with a venturi to create suction in a 4" … »More detailed

Feb 11, 2011· And then using a 5"power jet, with a 4" suction hose to reduce blockages (just something to think about). You might need morepowerhowever, and that could be the deal breaker. You can get a good idea of the dimensions of a flare for a smalldredge(the 456-7) from this above shot

May 06, 2013· You turn the pump on (this was near to impossible). It sucks water through the intake (basically never). The pump propels the water through the pressure hose into the power jet (if we could prime it). Inside the power jet, a high pressure nozzle creates a venturi effect, creating suction in one direction and expelling water in another