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Power Station
In Victoria, most electricity is generated by brown coal-fired power stations. Electricity is a major ingredient in the making of Alcoa’s aluminium at the Point Henry Smelter.
At Alcoa Anglesea, once the brown coal is taken out of the mine, it is delivered firstly to the primary crusher where it gets crushed and broken down to around the size of a soccer ball and smaller.
A conveyor then transports the crushed coal to two live stockpiles that hold equal to 1.5 days supply for the power station.
The coal is then fed into the secondary crusher that breaks it down further, to a size less than a tennis ball.
From this point, the coal travels along the main conveyer system and is stored into six hoppers, ready to be pulverised into a fine powder.
This powder is dried and fed into the power station’s boiler, which is unique to Australia, as it stands at 57 metres from ground level.
Hot gases heat the water in the tubes lining the boiler walls to make high pressure steam that drives the turbine blades to spin at high speed and interact with the rotor to create electricity.
This electricity is then transported to the Point Henry aluminium smelter through a 45km high-voltage line.
Click here to view the Anglesea Process Flow Chart.
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