Spiral Concentrator In Mineral Processing Information

Spiral concentrators are capable of sustained recoveries of heavy minerals in the size range of 3 mm down to 75 microns (6 to 200 mesh). They are suitable for use as roughers, cleaners, or scavengers.
Each of these mineral spiral concentrators, part of Multotec’s gravity concentration equipment within its range of mineral processing equipment, have feed tonnage capacities ranging from 4 – 9 tons per hour per start. Click here to read the full story.
Some spiral concentrators, especially those used in coal cleaning, have the capability of removing the high density material at multiple positions in the vertical spiral. Coal can consist of as much as 50% high density material, compared to a typical heavy mineral with only 5% to 10% high density content.
spiral concentrator in mineral processing information. Humphreys Spiral Concentrator Mineral Processing & Extractive Jul 13, 2016 The Humphreys Spiral Concentrator, which was invented by I. B. Humphreys and first used in 1943 for 174 roughing, and 12 finishing spirals have replaced an installation of
Multotec's heavy mineral spiral test units are supplied by pumps driven by variable speed drives, operating between 380 V or 525 V and processing up to 20 tons per hour. English 483
Apr 01, 2013 · Latest design improvements increase spiral concentrator efficiency Spiral concentrators have, over numerous years, found many varied applications in mineral processing . Until relatively recently, all spirals were very similar, based upon the original Humphreys design, which is now obsolete.
A spiral separator may process a couple tons per hour of ore, per flight, and multiple flights may be stacked in the same space as one, to improve capacity. Dry Spiral Separators. Dry spiral separators, capable of distinguishing round particles from nonrounds, are used to sort the feed by shape.
The fine mineral spiral series is used for fine feed with particles in the range of 30-150 microns WW Series Utilises wash water addition for enhanced grade control in specific applications (i.e. iron ore, mineral sand)
In general, single G process are only capable of processing particles that are greater than approximately 80 micron in diameter. Of the gravity separation processes, the spiral concentrators and circular jigs are two of the most economical due to their simplicity and use of space.

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