Learn about our.... Coal Dredgers,  Transport Conveyors,  Raw Coal Bunker,  Overburden Stackers,  Environmental

Mine Facts

Based on coal quantity surveys, GEAC estimates there is approximately 2.1 billion tonnes of available coal within Loy Yang Power’s existing Mining Licence with a further estimated 1 billion tonnes associated with the exploration licence.

Mine Statistics Mining technique - Open cut Open cut area - 800 hectares Coal output - 30+ million tonnes per annum Mine perimeter – 13km Mine depth - 180 metres Coal seam thickness - 180 metres Overburden thickness - 5-24 metres Age of coal seams - 15-30 million years Calorific value of coal - 8.15 Mj/kg Moisture content - around 62 per cent Ash content - 2 per cent Life of coal seams with current mining - 40 years. (Total reserves will last several hundred years.)

Life of coal seams with current mining - 50 years. (Total reserves will last several hundred years.)

Coal Dredgers Dredger 14 and 15 built by Krupp Australia Dredger 16 built by Mannesmann/Demag Dredger 27 built by Krupp Australia Motor size up to 440 kw Bucket wheel up to 13.2 metres diameter (10 buckets per wheel) Bucket capacity up to 2.3 cubic metres Machine size 190 metres long, 50 metres high and 5,000 tonnes in weight Output - up to 4000 tonnes of coal per hour and up to 2500 cubic metres of overburden per hour. Travel speed - 8 metres/minute (1/4 km/h)

Transport Conveyors

Belt width - 2 metres and a length of up to 2 kilometres Belt speed - 5.2 metres/second - 19 km/h Total Installed conveyor length 20 kilometres

Raw Coal Bunker Total design capacity for six power station units - 70,000 tonnes. This is sufficient to supply 6 x 500 MW units for approximately 19 hours.

Overburden Stackers Travelling stackers are used on the overburden dump to remove overburden from the conveyors and spread it, ready for land rehabilitation. Loy Yang Power has two travelling stackers - TS4 and TS5. TS4 built by MAN Machine size - 107.5 metres reach and weighs 2100 tonnes Output - 15,400 tonnes per hour TS5 built by Krupp Australia Machine size - 81.5 metres reach and weighs 1863 tonnes Output 8500 tonnes per hour

Environmental Loy Yang mine is actively pursuing environmental goals in many areas such as water management and treatment, land rehabilitation and land use planning. To maintain stability within the mine, high quality artesian water at 32°C is pumped from underlying aquifers at an average of 270 litres/second, and is used to supplement water supply to the power station.