Anode production
The Point Henry smelter produces anodes for use during the aluminium smelting process. 
 
Anodes are large carbon blocks which act as electrical conductors, heating and allowing electricity to enter the smelting pots. The Point Henry smelter produces around 150,000 anodes per year that weigh approximately 700kgs each.
 
Anode production begins in an area of the smelter called the Green Mill. Here, an anode mix is produced from blended petroleum cokes, pitch and recycled anode butts that have been returned from the smelting process. These materials are mixed together in heated mixer boxes. Once the mixture is fully blended, the material is conveyed to a series of mechanically vibrated moulds. The formed anodes, known as "green anodes" are then conveyed to the Carbon Bake.
 
In the Carbon Bake, anodes are placed in an underground furnace and ‘baked’ to a temperature of 1120oC. The total baking process, including handling, baking and cooling, takes around two weeks. The baking process converts the "green”, soft anodes into hard, electrically conducting anodes that will withstand the high temperatures and electrical currents inside the smelting pots. The Point Henry smelter bake has 384 individual baking pits which can each hold 18 anodes.
 
The last stage of the anode production process takes place in the Rodding Mill.  This is where the anodes are fitted to a copper/steel rod using molten cast iron. The anodes are then transported via fork trucks to the potrooms for use in the smelting pots.
 


Anodes are baked to a temp. of 1120 degrees C

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Anodes being removed from the Point Henry carbon b

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Copper/Steel rods are fitted with molten cast iron

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