Screening upgrade at Edie Creek

A LARGER vibrating feeder has been installed and modification works to the feed hoppers at Niuminco Group’s Edie Creek gold-silver mine in Morobe Province have been completed.

Screening upgrade at Edie Creek

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Commissioning and testing is taking place with the feeder and mill running for five hours a day over the past two days, processing about 20t of wet ore on each of those days.
 
Mining and screening feed material is continuing with material being sourced from the Alpha West vein system at Edie Creek and will also be sourced from the Surmans area in coming weeks.
 
The larger vibrating feeder was ordered to help improve ore processing throughput.
 
In the March quarter only 94.6 wet tonnes of ore were processed at an average grade of 10.5 grams per tonne of processed ore.
 
A variety of ore materials from different sources within the leases prior to the vibrating feeder order decision.
 
The screen arrived on site just before the end of the quarter.
 
With the vibrating feeder arriving on site, the mine is ramping up the quantity of ore mined and processed to the targeted 40t to 60t per day as installation and test running of the feeder and ore fed set up was carried out.
 
Besides the vibrating feeder, a second hand 440 kilovolt Amp Cummins generator was bought and installed to provide increased and more reliable power supply going forward.
The existing 270kVA generator is being used as a back-up power supply.
 
A new programmable logic circuit was installed in the Gekko Inline Spinner concentrator plant and following the failure of a variable speed drive.
 
A replacement VSD has been purchased, installed and successfully tested to quarter-end.
 
"The installation of the new vibrating feeder and the upgrades to the mill feed plant will provide significantly increased processing capacity going forward," Niuminco managing director Tracey Lake said.

 

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