Theory Of Operation
The In-line pressure Jig is unique in its design and use of jigging concepts. The unit is fully encapsulated and pressurised and combines a circular bed with a moveable sieve action. The encapsulation allows the STPL to be completely filled with slurry and water.
As a result, slurry velocity is slowed and water surface tension eliminated improving recovery potential. The screen is pulsed vertically by a hydraulically driven shaft. Length of stroke and speed of up and down stroke can be varied to suit the application. Screen aperture and ragging dimension and material can also be altered for the application.
STAR TRACE pressure Jig is a high yield, high recovery gravity separation device. It has been successfully installed in both alluvial and hard rock applications. Significant advantages have been achieved in grinding circuits where coarse heavy minerals or waste material have been recovered for preferential treatment prior to over grinding.
The mineral jig operated to recover free gold, sulphides, native copper, native silver, tin/tantalum, diamonds and garnet. Installations are also planned for coal, lead remediation, magnetite, mineral sands and iron ore recovery. Typically units are installed in the recirculating load with STPL feed consisting of up to 14mm mill discharge or cyclone underflow.