Prolific Mining Mill has been designed and constructed to be a “proof of concept” operation. As opposed to conventional mining and Milling operations the sub-economical mine material waste or low-grade is spoiled or stocked in waste dumps for future economical use. The host rock while mineralized is also of potential value.
The primary SAG mill will be of the grate discharge type with a diameter of 6.4 m inside shell and an effective grinding length of 4.23 m. The mill will operate with a nominal ball load of 6% by volume and an operating critical speed ranging from 60% to 78%. The SAG mill will be powered by a 3000 kW motor with variable speed capability.
Run-of-mine ROM feed will be dumped directly into a 62-75 560 kW primary gyratory crusher by the mine haul trucks. An apron feeder will carry crushed ore from the crusher discharge pocket to a sacrificial conveyor. The sacrificial conveyor will transfer material onto another conveyor that will feed the secondary crushing circuit.
SAG mill discharge classifi ion. There are two primary mechanisms for classifying SAG mill discharge: screens and trommels. Due to a reduction in the required capital costs and space required for screens trommels enjoyed a period of popularity but the most favourable method of preparing SAG circuit oversize for pebble crushing is screening.
TAMRA MINING LLC COPPER BENEFICATION FACILITIES . Ground Water Discharge Permit No. UGW010014. I. Description of Facilities . Tamra Mining Company LLC operates copper mining and beneficiation facilities in Beaver County Utah. These facilities are supported by process water ponds and tailings impoundments. The primary tailings
Each SAG mill two total is a 40 ft diameter by 24 ft long grate discharge semi-autogenous grinding mill. Slurry and pebbles exit the mill after passing through the mill discharge grate and pebble ports onto a trommel screen fixed to the mill discharge trunnion.
The other two chute systems to be installed in the primary crushing circuit are a primary crusher sacrificial conveyor discharge chute and an ore reclaim sacrificial conveyor discharge chute. The former is designed for a material throughput rate of 1598 t/h and the latter 1197 t/h; both transferring minus 300 mm material loading onto belts