sluice box 3 stage or not
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sluice box 3 stage or not

3 stage sluice FAQ - Gold Fever Prospecting

The latest technological design is the new 3 stage sluice box. The new box works similar to the double or triple sluice, classifying the fine material into separate compartments or sluices for processing. The differences are: 1. The material is classified 1/3 of the way down the box allowing the fine gold to fall and settle out of suspension. 2.

How To Build A Three Stage Sluice - scholmanloodgieters

20141114Three Stage Sluice Instructions The 3 stage sluice box requires more water than a normal sluice box to operate correctly . W e recommend that the engine be ran at least 23rds. throttle or higher. If the engine operates too slow the riffles may become overloaded and a

Homemade 3 Stage Under Current Sluice Box catching

The 3 stage sluice box - starting construction: In developing plans for a homemade sluice box, the more time you spend thinking about your design, the better. You don't want to have to buy parts you don't need, but on the other hand your slice box need to

home made 3-stage sluice box, and easy lift system -

07-07-2011  home made 3-stage sluice box, and easy lift system - YouTube. Watch later. Share. Copy link. Info. Shopping. Tap to unmute. If playback doesn't begin shortly, try restarting your device. An error ...

Building A Three Stage Sluice - krosline

Building A Three Stage Sluice. Building a 3 stage sluice box for a gold dredge header crash box flare this is one where you have to decide what you want to doou can go with a crash box style head and is relatively easy to make crash box is just a.

Modding to a 3 stage sluice - DIY PROJECTS - Nugget ...

04-09-2014  Of course the three stage sluice only starts at a 4 inch dredge; however, the 3 inch has the same pump and engine capabilities. Just not the same sluice. I know of the site for building one from the ground up three stage but I am just looking for any upgrading an existing keene. Quote.

How To Set Up a Sluice Box : Complete Guide (Angle,

A sluice box should be set up in a creek or river with a steady flow of water, so that the lighter materials can get flushed out of the sluice box, while the heavier gold and black sands are trapped. As a general rule of thumb, it should slope around 5-7 degrees to function efficiently. To prevent the sluice box

3 stage sluice build - YouTube

29-03-2013  About Press Copyright Contact us Creators Advertise Developers Terms Privacy Policy Safety How YouTube works Test new features Press Copyright Contact us Creators ...

» Setting the Proper Water Velocity Through a Sluice Box

It really does not take very much volume of water through a medium-sized sluice box to get the right amount of velocity, if the water is moved through the box at speed. In the case of a short elevator (dam), the water level might only need to be raised up slightly to increase the downward slope of the box

Homemade 3 Stage Under Current Sluice Box catching

The 3 stage sluice box - starting construction: In developing plans for a homemade sluice box, the more time you spend thinking about your design, the better. You don't want to have to buy parts you don't need, but on the other hand your slice box need to

Question about a keene stage 3 sluice box. Gold

30-08-2013  Hi everyone. I just purchased a 4" keene dredge with a stage 3 sluice. I really like it but there's one thing I can't figure out. When I'm running material, the bottom most stage (stage 3?) is getting clogged up. I'm not sure, but I think I might have had the riffles turned upside down and I don't know if this would make a difference.

Dredging for Gold - Introduction

Lower speed or velocity is required to recover fine gold in the lower or separate sluices. When the speed is high enough to carry off the larger non-value cobbles through a single sluice box, a loss of fine gold can occur if the material and flow is not separated. The latest

Setting up Keene 4″ 3 stage with mats? – Equipment ...

05-05-2017  The under sluice is useless in my opinion. Make a single stage out of it and it will work very well. I second this opinion as well !! The only way it will work as a 3 stage is if you leave all the OEM carpet and riffles in it. It was designed that way... not designed

Plan and design your own home made suction dredge for

Building a 3 stage sluice box for a gold dredge. Header / crash box / flare: This is one where you have to decide what you want to do. You can go with a crash box style head and is relatively easy to make. A crash box is just a box that sits and the head of the sluice,

The Riffle/Trap System - Gold Prospectors Association of ...

07-01-2016  All most all sluice boxes use a carpet or some form of ribbed matting or miners moss as the first trap in the sluice box. The second trap may be expanded metal or a riffle system that goes over the top of the first trap and some might go expanded metal over the first trap with a riffle system over the expanded metal giving the sluice box 3 traps to stop and hold the gold.

» Setting the Proper Water Velocity Through a Sluice Box

As a general rule, the optimum slope-setting of a sluice is around one inch of drop per linear foot of box. This can change, depending upon the volume and velocity of water being used, and/or the average shape, size, volume or weight (specific gravity) of

Dredge Adjustments - Gold Prospectors Association of

The optimum adjustment of a properly working sluice box is evident by only a. portion of the riffle is visible while operating. A loss of values can also occur if the solid content of the suction discharge is. too heavy in solid content. Remember, the solid content should not exceed 10 %. A normal sluice box tilt is approximately. 3/4” inch to the running foot. Afour foot sluice box should have an approximate tilt of 3"

Best matting riffle combination for fine gold - Sluicing ...

13-04-2013  If you have a long enough sluice system, you should consider exposing your slurry / gold to various surfaces, velocities, capture zones, etc. Many of the larger industrial operations now do this, or have done this for years. Varying the exposure throughout the run, and treating it to several processes.

Question about a keene stage 3 sluice box. Gold

30-08-2013  The 3 stage can be a little harder to set rite compared to a straight sluice because there a couple of things you could do to solve the problem other then just putting more or less angle on the sluice i would advise to really play around with it for a day to get it just rite...what i would do is open the choke as wide as it can go and have the sluice so the very back is just touching the water (thats wile its running !) and go from there ....if you have the sluice

dredgenz.co.nz

allow maximum flow into the 3rd. stage riffle area. If the Third Stage Riffle appears to be running too clean you can move the separator plate Inward decreasing the water flow allowing more material to accumulate into the riffle section. Side view of 3 stage sluice box 1st punch Sluice Box Tilt Adjustment Move the sluice Box forward to ncrease or backward to decrease the angle. The sluice box

Dredging for Gold - Introduction

Lower speed or velocity is required to recover fine gold in the lower or separate sluices. When the speed is high enough to carry off the larger non-value cobbles through a single sluice box, a loss of fine gold can occur if the material and flow is not separated. The latest

Keene 4" Jet Flare Dredge 3 Stage Sluice with P180 AB ...

Keene 4" Jet Flare Dredge 3 Stage Sluice Keene’s “3 Stage Sluice Box” provides excellent gold recovery and easy, convenient clean up. Note below that in Stage 1 the primary riffles can be removed separately from the other riffles and a new plate covered with deep V rubber matting that is also easily removable is placed at the end of the flare for fine gold recovery.

undercurrent type of sluices design - mayukhportfolio.co

Homemade 3 Stage Under Current Sluice Box catching Gold ... Build a home made Sluice Box, make your own design plans and then build it yourself; Prospecting for ... This is a standard type of undercurrent type of design.

» Setting the Proper Water Velocity Through a Sluice Box

As a general rule, the optimum slope-setting of a sluice is around one inch of drop per linear foot of box. This can change, depending upon the volume and velocity of water being used, and/or the average shape, size, volume or weight (specific gravity) of material that you are processing. There is no exact formula for setting the proper water ...

Keene 4" Dredge 3 Stage Sluice Honda KAC Dive

20-04-2021  Keene 4" Dredge 3 Stage Sluice Honda KAC Dive Compressor - $3800 (Ontario) Keene 4" Dredge W / 3 Stage Sluice Box Swivel Nozzle also Included is the KAC Hookah Compressor with Hookah hose and reserve tank. Powered by the Reliable Honda motor with an hour meter. Hours on the meter read 29 hours.

Dredge Operating instructions - Gold Fever Prospecting

Remember, the solid content should not exceed 10 %. A normal sluice box tilt is approximately 3/4” inch to the running foot. Afour foot sluice box should have an approximate tilt of 3" CLEANING THE SLUICE BOX. Before attempting to clean the sluice box, it should be allowed to run with only water for a few minutes in order to washout any excess gravels that have accumulated.

Gold mining - Wikipedia

The exact date that humans first began to mine gold is unknown, but some of the oldest known gold artifacts were found in the Varna Necropolis in Bulgaria.The graves of the necropolis were built between 4700 and 4200 BC, indicating that gold mining could be at least 7000 years old. A group of German and Georgian archaeologists claims the Sakdrisi site in southern Georgia, dating to the 3rd or ...

Picked up a 3″ dredge w/ over under sluice – HELP With ...

09-06-2017  3" dredge. Keene P180 pump (rated 250gpm and I will try to get better information this weekend if I can get out) Briggs and Stratton 5hp motor. 14"x48" sluice with crash box. Punch plate in crash box for the lower sluice. Lower sluice has carpet with expanded metal and riffles. Upper sluice has carpet with riffles

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