AI
Friday, June 03, 2011 10:30:42 PM
iCON SB 150 Enhanced Gravity Concentrator (Part 1)
http://www.iconcentrator.com/images/stories/pdf/centrifuges-modified-iCON-2-opt.pdf
Double-wall centrifuges - FalconTM iCON
History and general description
The iCON evolved from the Falcon SB to give artisanal gold miners an affordable robust device able to recover very fine gold without mercury. Guidance and encouragement was given to Falcon Inc by Professor Marcello Veiga adviser to the Global Mercury Project.
The result was the iCON concentrator in US patent application #12/446,812, publication #US 2010/0240513 A1 filed 23rd October 2007 by inventors Steve McAlister and Mark Vinchoff.
Falcon is now a brand owned by Sepro Mineral Systems Corp.
The innovative iCON differs from the Falcon SB in having a common shaft that links the drive motor to the concentrator bowl. The cost of bearing assemblies is reduced, and
the motor is now above the bowl and clear of the slurry,, so simplifying the design. The common shaft also serves as the conduit for introducing the fluidising fluid to the bowl.
Drum Version - in the patent application, the unit is encased in a 45-gallon metal Drum for transport, and the Drum supports the unit in operation. The Drum is raised on blocks
to give clearance for a Concentrate Collector. The Drum Version is discontinued.
Current Version - the Drum is dispensed with, and the unit is supported by 4 metal legs, giving room for the Concentrator Collector, and lowering the overall height of the unit. Due to its popularity, iCON is now a line of products and iCON Gold Recovery Corporation operates independently of its parent Sepro.
Operation
The maximum feed size is 2mm and the iCON line includes an optional 2mm screen.
Accordingly the unit requires a simple coarse recovery system put in front, or else is used for processing fine tailings, upgrading concentrate or processing fine sands.
The unit stands on legs above a collection vessel to accept about 1-kilo of concentrateper rinse cycle. The unit is hooked to a 220-volt single phase electricity source, and connected to a water supply of at least 17 litres per minute under 1 bar pressure. The watersupply is switched on, and next the centrifuge switched on in accordance with the manufacturer's instructions. Only then can feeding commence via the Feed Pipe supplied via
a 2mm screen and feed hopper affixed above the top of the unit in a manner to allow gravity feed into the spinning centrifuge bowl. It is important to maintain feeding in as even a manner as possible. Water pressure is monitored to find the optimal pressure for best gold recovery.
In the Drum Version, the first tailings accumulated inside the 45-gallon Drum to enhance stability, the later tailings overflowing via the Tailings Discharge Pipe. In the
Current Version, all tailings report directly to the Discharge Pipe.
After the run cycle is finished, the feed is stopped while the centrifuge continues to pin under power. Once no feed material is entering the unit, the water pressure is turned
down low sufficient only to provide positive pressure to the collection riffles. Only then is the bowl allowed to either stop or slow down to the rinse speed. Now the concentrate can
be flushed out of the bowl's collection riffles by increasing the fluidisation water pressure.
The Rinse Hose is used to flush the bowl clean. The concentrate is flushed out of the
bottom of the unit via the Concentrate Pipe into a suitable Concentrate Collector under the unit. The 'Run time' is 30-60 minutes before gold recovery falls. Like the Falcon SB, the
iCON achieves a concentration ratio of 1,000 or more, but the concentrate requires further upgrading (‘cleaning’), for instance by a Blue Bowl or by a second pass through the unit.
Adoption by placer gold miners
Uses of iCON include: a) initial processing of hard rock ores, b) scavenging of hard rock tails, c) processing fine gold placers, and d) upgrading concentrates. This unit is also
proving popular for prospecting and drilling because it is easily cleaned between samples.
Several hundred units have been sold to artisanal miners in Africa and elsewhere. The unit has potential for recreational miners, and industrial models are now being marketed.
Gold recovery by iCON (made in Canada)
http://www.iconcentrator.com/images/stories/pdf/centrifuges-modified-iCON-2-opt.pdf
Double-wall centrifuges - FalconTM iCON
History and general description
The iCON evolved from the Falcon SB to give artisanal gold miners an affordable robust device able to recover very fine gold without mercury. Guidance and encouragement was given to Falcon Inc by Professor Marcello Veiga adviser to the Global Mercury Project.
The result was the iCON concentrator in US patent application #12/446,812, publication #US 2010/0240513 A1 filed 23rd October 2007 by inventors Steve McAlister and Mark Vinchoff.
Falcon is now a brand owned by Sepro Mineral Systems Corp.
The innovative iCON differs from the Falcon SB in having a common shaft that links the drive motor to the concentrator bowl. The cost of bearing assemblies is reduced, and
the motor is now above the bowl and clear of the slurry,, so simplifying the design. The common shaft also serves as the conduit for introducing the fluidising fluid to the bowl.
Drum Version - in the patent application, the unit is encased in a 45-gallon metal Drum for transport, and the Drum supports the unit in operation. The Drum is raised on blocks
to give clearance for a Concentrate Collector. The Drum Version is discontinued.
Current Version - the Drum is dispensed with, and the unit is supported by 4 metal legs, giving room for the Concentrator Collector, and lowering the overall height of the unit. Due to its popularity, iCON is now a line of products and iCON Gold Recovery Corporation operates independently of its parent Sepro.
Operation
The maximum feed size is 2mm and the iCON line includes an optional 2mm screen.
Accordingly the unit requires a simple coarse recovery system put in front, or else is used for processing fine tailings, upgrading concentrate or processing fine sands.
The unit stands on legs above a collection vessel to accept about 1-kilo of concentrateper rinse cycle. The unit is hooked to a 220-volt single phase electricity source, and connected to a water supply of at least 17 litres per minute under 1 bar pressure. The watersupply is switched on, and next the centrifuge switched on in accordance with the manufacturer's instructions. Only then can feeding commence via the Feed Pipe supplied via
a 2mm screen and feed hopper affixed above the top of the unit in a manner to allow gravity feed into the spinning centrifuge bowl. It is important to maintain feeding in as even a manner as possible. Water pressure is monitored to find the optimal pressure for best gold recovery.
In the Drum Version, the first tailings accumulated inside the 45-gallon Drum to enhance stability, the later tailings overflowing via the Tailings Discharge Pipe. In the
Current Version, all tailings report directly to the Discharge Pipe.
After the run cycle is finished, the feed is stopped while the centrifuge continues to pin under power. Once no feed material is entering the unit, the water pressure is turned
down low sufficient only to provide positive pressure to the collection riffles. Only then is the bowl allowed to either stop or slow down to the rinse speed. Now the concentrate can
be flushed out of the bowl's collection riffles by increasing the fluidisation water pressure.
The Rinse Hose is used to flush the bowl clean. The concentrate is flushed out of the
bottom of the unit via the Concentrate Pipe into a suitable Concentrate Collector under the unit. The 'Run time' is 30-60 minutes before gold recovery falls. Like the Falcon SB, the
iCON achieves a concentration ratio of 1,000 or more, but the concentrate requires further upgrading (‘cleaning’), for instance by a Blue Bowl or by a second pass through the unit.
Adoption by placer gold miners
Uses of iCON include: a) initial processing of hard rock ores, b) scavenging of hard rock tails, c) processing fine gold placers, and d) upgrading concentrates. This unit is also
proving popular for prospecting and drilling because it is easily cleaned between samples.
Several hundred units have been sold to artisanal miners in Africa and elsewhere. The unit has potential for recreational miners, and industrial models are now being marketed.
Gold recovery by iCON (made in Canada)
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