Overview
| Stage | Production |
| Mine Type | Open Pit |
| Commodities |
|
| Mining Method |
- Truck & Shovel / Loader
- Dragline
|
| Processing |
- Wash plant
- Dense media separation
|
| Mine Life | 19 years (as of Jan 1, 2017) |
Source:
p. 56
BHP Billiton Mitsui Coal (BMC) BMC owns and operates open-cut metallurgical coal mine in the Bowen Basin – South Walker Creek Mine. BMC is owned by BHP Billiton (80 per cent) and Mitsui and Co (20 per cent).
Summary:
Bituminous coal is mined from the Permian Rangal Coal measures. Produces a range of coking coal and
pulverised coal injection (PCI) coal.
Rangal Coal Measures of Late Permian age dipping west at 5–10°; the coal is a high-energy semi-anthracite which occurs in a 9–14m thick seam locally referred to as the Main seam.
Mining Methods
- Truck & Shovel / Loader
- Dragline
Summary:
Mining conditions over the area are favourable for open-pit extraction with soft overburden and relatively low stripping ratios. Overburden is removed using a dragline, hydraulic backhoes and rear dump trucks.
Processing
- Wash plant
- Dense media separation
Source:
Summary:
South Walker Creek coal beneficiated on-site. Nominal capacity: in excess of 5 Mtpa.
Raw coal is processed in dense medium cyclones and spirals, or bypassed directly for a raw product.
Production:
| Commodity | Units | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 | 2014 |
|
Coal (metallurgical)
|
kt
| ...... | ...... | 6,029 | 5,123 | 5,436 | 5,293 | 5,246 |
All production numbers are expressed as clean coal.
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Operational Metrics:
| Metrics | 2020 | 2019 | 2018 | 2017 | 2016 |
|
Coal washing plant annual capacity
| ...... | ...... | ...... | 5 Mt | 5 Mt |
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Reserves at June 30, 2020:
| Category | OreType | Tonnage | Commodity |
|
Proven
|
In-Situ (OP)
|
93 Mt
|
Coal (metallurgical)
|
|
Proven
|
In-Situ (UG)
|
93 Mt
|
Coal (metallurgical)
|
|
Probable
|
In-Situ (OP)
|
36 Mt
|
Coal (metallurgical)
|
|
Probable
|
In-Situ (UG)
|
36 Mt
|
Coal (metallurgical)
|
|
Proven & Probable
|
In-Situ (OP)
|
129 Mt
|
Coal (metallurgical)
|
|
Proven & Probable
|
In-Situ (UG)
|
129 Mt
|
Coal (metallurgical)
|
|
Measured
|
In-Situ (OP)
|
207 Mt
|
Coal (metallurgical)
|
|
Measured
|
In-Situ (UG)
|
36 Mt
|
Coal (metallurgical)
|
|
Indicated
|
In-Situ (OP)
|
119 Mt
|
Coal (metallurgical)
|
|
Indicated
|
In-Situ (UG)
|
154 Mt
|
Coal (metallurgical)
|
Corporate Filings & Presentations:
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Aerial view:
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