MADE IN THE USA! The new generation of fluid bed sluices is here - the Grizzly Gold Trap Sluice
The Explorer Gold Trap sluice is the perfect combination of size, and fluid bed chamber capacity. This 35.5-inch model weighs in at only 7lbs. The Explorer's capture chamber hold more than twice the capacity older model sluices like the Bazooka Sniper. Better yet, there is no need to classify, just shovel pay dirt directly from the stream bed onto the material transport deck. Clean-outs are easy and fast, taking less than a minute. Simply place the fluid bed end of the sluice in a 5-gallon bucket of water, plunge the chamber end up and down a few times to empty it, and you are ready to put the Gold Trap back into the water to capture more gold.
self-cleaning fluid bed trap
Operates in as little as 5 inches of water
DEVELOPMENT OF GRIZZLY GOLD TRAP SLUICES
The Grizzly Gold Trap features numerous design improvements over previous fluid bed sluices including:
Angled transport deck section
Higher capacity gold capture chamber: fewer cleanouts
Improved transport of material over grizzlies: fewer jam-ups
More efficient fluid bed/capture chamber: captures and holds gold
Increased capture and retention of fine gold: capture with confidence
Sampling riffles: Quickly assesses gold in material
Key Features (compared to older fluid bed sluices)
Processes unclassified material: greater volume of material* Higher capacity gold capture chamber: fewer clean outs Improved transport of material over grizzlies: fewer jam-ups More efficient fluid bed/capture chamber: captures and holds gold Increased capture and retention of fine gold: capture with confidence Sampling riffles: Assesses gold in material *NOTE: Low flow situations may require classifying material with ½ to ¼ mesh, depending on conditions.
ENGINEERED TO IMPROVE FLUID DYNAMICS AND FINE GOLD RETENTION
Design concepts for the Grizzly Gold Trap originated from performance analysis of earlier models of fluid bed sluices, like the Bazooka sluice, and determining what design features could be improved, as well as determining which features performed well. Working with an engineering expert — more than 40-years experience in fluid dynamics — we developed various computer models of the Grizzly Gold Trap, which went through numerous changes designed to improve ease of set-up, retention of gold (especially fine gold smaller than -100), and running of unclassified material.
SIMULATED STREAM TEST SYSTEM
Based on our fluid bed design models, prototypes of the Grizzly Gold Trap were fabricated, including a transparent model tested in our recirculating water system. The recirculating system was developed specifically to study how material typically associated with gold (various sizes of gravel, light sands, black sands, etc.) moved and stratified on the transport deck, passed through and over the grizzly, entered the fluid bed chamber, stratified within the chamber, and was either held in the chamber or was exchanged out. Through these tests and observations, we gained a more in-depth understanding of how gold (from +20 sizes to -200 sizes) and other heavies stratify within different sections of the sluice, what design features help fine gold settle out of the laminar flow regimes, and how our fluid bed design (turbulent flow regime) continued to stratify and exchange material. In addition, we discovered design concepts that helps capture and retain a higher percentage of fine gold as small as -200. Based on the results of our testing and redesigns, the Grizzly Gold Trap was ready for field testing.
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