The benefits of Reatrol are immediate and reduce costs by using less electrical power, dramatically reducing anode scrap
and decreasing the need for manpower to identify and eliminate short circuits.
Charges corresponding to 130 mt new copper and 40 mt recycled anode scrap
are refined in 12-hr cycles.
Other new equipment includes an anode scrap washing machine, an anode milling preparation line, an automated transfer system for delivering anodes to the tankhouse, two cathode stripping machines and two new overhead travelling cranes for the tankhouse.
Also at the end of the 21-day anode life cycle, the scrap anodes are removed from the cells to the new anode scrap washing machine.
Raw material, such as blister copper slabs, anode scrap, copper scrap and used anode molds, is melted continuously and the molten copper refined as it flows through the furnace.
Specially designed machines process cathodes, anodes, and anode scrap automatically.
Anode scrap averages 12% at NA compared with 15-20% at many other refineries.
Labor saving and efficiency comes from the smooth crane operation and automatic handling of anodes, cathodes, and anode scrap. The crane action is uncanny.
The cathode stripping machine has a capacity of 500 cathodes/hr, the anode preparation machine a capacity 450 anodes/hr, and the anode scrap machine a capacity 500 scrap anodes/hr.
The converters will produce blister copper, including remelted anode scrap
. The blister will be refined in two anode furnaces and cast as 348 kg anodes on a 28 mould rotary casting wheel.