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Pmx gold wheel for gold mining claim, mining equipment
PMX Rotary Concentration Table
Up For Sale Is A Slightly Used PMX Rotary Concentration Table
An interesting variation of the spiral concentrator is the rotary table. This device is available from a variety of manufacturers under many trade names. Basically, the rotary table consists of a flat, circular plate in which a spiral pattern has been molded or cut. It is usually mounted on a frame with a wash water bar running laterally from the one side to the center. When operating, the unit is tilted upward and the table is rotated clockwise. Material is fed in on the left side. Tailings are washed over the bottom lip, while concentrates are carried towards the middle and flow through the discharge hole (Photo 7). The rotary table concentrates material through a combination of gravity separation and fluid forces. As the table rotates, wash water forces light material downward. over the spirals. The centrifugal force generated by rotation forces heavier material into the troughs of the spirals where the washing action of the water is minimal. In some machines, the spiral pattern varies in height much like the tapered riffles on shaking tables. The higher initial spirals allow the heavy material to settle. The shortening of the spirals towards the center of the table allows wash water to clean the concentrate before discharge. The wash water flow determines the density of the final concentrate. A strong flow will wash away most of the lighter material, producing a heavier concentrate, while a milder flow will remove less light material, reducing the density of the final concentrate. For more control in concentration, Precious Metals Extraction (PMX) puts individual controls for each jet of water on the wash water bar. These controls allow the operator to adjust individual wash water jets for maximum effect.
In a test of a PMX table, an independent laboratory (Golden State Minerals, Inc., Auburn, California) separately processed 3 pounds of black sands screened to minus 20 mesh (.85 mm) and 200 pounds of gravel screened to -1/4 inch. These samples were amalgamated and were observed to contain mercury droplets smaller than 500 mesh (30 microns). Results show the PMX rotary table recovered 99.91% of the mercury contained in the black sands and 99.95% of the mercury contained in the gravel. Microscopic examination of the tailings revealed a trace of - 500 mesh (30 microns) mercury (Cassell, 1981). Rotary tables are very efficient cleaners. Their low capacity limits their use as roughers.
A PMX rotary concentration table. Note the wash water bar with individual jet controls and the concentrate discharge hole in the center.
Feel free to come and inspect this nice PMX Rotary Table anytime, please call (***)-816-0451 or email us to make an appointment today.
Finance Options: No Finance Options For This Item, Sorry
Eureka Mining Inc is a full service mining company based in Nevada City, Califronia. We specialize in mining and selling quality mining properties, both patented and unpatented and can provide you mining equipment for both recreational and commercial prospectors. We have over 20 years of combined experience in California's colorfull Placer Mining Industry and are currently setting up commercial operations in Nevada County in the Red Dog Mining District. The material is derived from the Tertiary Yuba Channel and is also known as the Blue Lead Channel that extends into Sierra County. We will be mining and estimated 3 million yards of bulk material from the Ancient Channel using chemical free gravity seperation to extract precious mineral values. The scope of the project is 50 years with reclamation running concurrent to the mining activities. We are an enviromentally safe mining company practicing enviromentally friendly mining strategies. During our mining activities we will be ridding the land of harmfull waste left behind by earlier miners, such as Mercury, Lead, Iron, and other contaminents from the ground and groundwaters of California.
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