Falcon 'SB' Semi-Batch Gravity Concentrators
Up to 200 G's, coarse and fine gold recovery
The Falcon SB Concentrator is based on a combination of the original, smooth walled Falcon "B Bowl" and the fully fluidized MacNicol Bowl which originated in Australia in the 1930s.
These machines are known as "Semi Batch" because they continually accept feed during the run cycle, but only produce concentrate during periodic rinse cycles. Run times range anywhere from 5 minutes to several hours, depending on the application.
Rinse times are generally less than one minute as Falcon uses dynamic brakes to quickly slow the rotating bowl, rinse out the concentrate, and then return full to operating speed.
The Falcon SB Concentrators use variable frequency drives (VFD) and can operate anywhere from 50 to 200 G’s.
The typical application for a Falcon SB Concentrator is recovery of liberated precious metals (gold, silver, platinum, etc.) within a grinding circuit. When installed within a grinding circuit, Sepro often recommends that the gravity concentrator be placed on cyclone feed, rather than cyclone underflow to generate higher gold recovery.
Outside of grinding circuits, Falcon SB Concentrators are also used for gold separation from aggregate, placer or alluvial deposits. The target mineral will usually be in extremely low concentration (grams per tonne) and a very high upgrade is desired (up to 10,000x).
APPLICATIONS & INSTALLATIONS
- Recovery of coarse and fine gold, silver & platinum group metals
- Recovery of coarse and fine gold from cyclone feed, underflow or overflow in the grinding circuit
- Recovery of fine gold in alluvial gold operations
- Recovery of fine gold from aggregate plants
KEY ADVANTAGES
- High G-forces (highest in the mineral processing industry) allow for higher efficiency and the recovery of very fine metals and minerals
- Dynamic brakes, advanced wear materials and a modular design decreases downtime and reduces maintenance costs (lowest maintenance costs in the industry)
- Reduced water consumption as only the pertinent collection zone section of the bowl is fluidized
- Fully automated, "one touch" operation that provides the least amount of offline time and highest possible concentrate security
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