Putting Together A Small Free Gold Mill
May 2018 by Chris Ralph
Most small-scale miners want to know how they can set up a system much more cheaply. The difficulty is in the balance of putting together a decent small-scale system at a reasonable cost.
I researched the Internet and found a number of table makers, but technology has changed in the last 25 years. No one could sell me a kit for a new deck with wooden riffles...
I thought it might be worthwhile to take a look at the basics of this important mineral separation technique and how a miner can use it to recover the values out of an ore.
In part one of this two-part series on gold in Guyana, I describe artisanal mining efforts currently winning alluvial gold from small-scale placer operations located along the lower Puruni River and its tributaries.
For this article, I am focusing on industrial production plants that can handle 10 cubic yards per hour or more and would be fed by a loader or other heavy equipment...
Choosing the right method to move your ore and waste is all about making the right choices. Sometimes more than one method may be used during the life of a mine as an operation expands and grows.
Sampling gold placers can be rewarding, but remember to treat the samples so you are not high grading or low grading your results. Learn the rules and apply them so your samples are accurate.
This explains the large difference in particle sizes between placers and hydrothermal lode deposits, but also means that while the mining may be similar in some cases, the sampling and recovery techniques are usually quite different.
The Bawl Mill • Ask The Experts - Is this a significant cobalt find? • Ask The Experts - Is this ICOG deposit commercially feasible to mine? • Ask The Experts - How to sell gold specimens • Our Readers Say • Feds Sue California over Sales of Public Lands • Legislative and Regulatory Update • What To Do When Gold Recovery and Assay Values Differ • Metal Detecting Old Hard Rock Mine Dumps • Because I Said So • Hecla Fights Bad Actor Label in Montana • The Miner’s Switchback • Prepping For A New Season of Gold Hunting • Melman on Gold & Silver • Mining Stock Quotes and Mineral & Metal Prices
PLP and MMAC Update