AEI Screens | Screening Gold Ore with BIVI-TEC® | Aggregates Equipment, Inc.
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Screening Gold Ore with BIVI-TEC®

  |   BIVI-TEC®, General, Mining   |   No comment

The BIVI-TEC® screen was designed to handle difficult separations of wet, sticky material.  Challenging contaminants such as heavy clays, which quickly cause a trommel or other convention vibrating screen using wire cloth, fingers, or punched plate to blind over, are easily handled by the BIVI-TEC® at openings much smaller than is possible with any other screen.

In 2013 AEI was challenged to screen high-silica gold ore at a green-field site located in a very wet, humid climate with plenty of clay.  Other screen manufacturers had already turned this project down.  The customer had been told that dry screening was not an option; that this would have to be a wash screen application using thousands of gallons per minute of water.  AEI was asked to present a solution that would prove the others wrong.

Oro Plant 2In the spring of 2014 the plant began operation with two KRL/DD(B) 2400×8 BIVI-TEC® screens (8’ x 27’). A jaw crusher feeds the primary BIVI-TEC® which separates the gold ore at 3/8”. The over-size is sent to a cone crusher which feeds a second BIVI-TEC®, also separating at 3/8”.  Finally, the over-size is recirculated through a finishing cone crusher and returned to the secondary BIVI-TEC®.

The system is handling 250-300 tons per hour of raw gold ore at moisture levels >10% with no blinding or carryover problems.  AEI hopes to help this customer increase production with an identical second plant in the near future.

Learn more about the BIVI-TEC® and its capabilities.

AUTHOR - Shawn Gibson

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