Overview
Stage | Production |
Mine Type | Underground |
Commodities |
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Mining Method |
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Production Start | ... |
Oak Grove Mine Complex consist of Oak Grove Mine and Oak Grove Preparation Plant. |
Source:
p. 1
Contractors
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Summary:
The primary coal seam mined is the Blue Creek seam which is approximately seven feet thick.
Summary:
This is an underground bituminous coal mine, which uses both longwall and continuous mining methods.
Description Longwall:
- Seam – Blue Creek;
- Seam height - 55 inches;
- Cutting height - 80 inches;
- Panel width - 1,215 ft;
- Panel length – 6,000 ft;
- Overburden – 680 ft;
- No. of gate entries - 4;
- Depth of cut - 36 inches;
- Shearer - Joy 7LS-1D, double-drum ranging arm shearer with 1,840 hp installed;
- Haulage system - Ultratrac 2,000 ;
- Roof support yield (tons) – ZMJ 1,020;
- Roof support controls (type) – N/A;
- Face conveyor type (strand, motors) - CEMI, 48 TIB 3x1,900;
- Face conveyor drives – N/A;
- Face conveyor width/speed - 1,000 mm/384 fpm;
- Stageloader type, width, speed - CEMI, 1,200 mm, 378 fpm;
- Crusher - CEMI;
- Electrical controls – Service Machine;
- Voltage to face - 4,160.
Source:
Summary:
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Production:
Commodity | Units | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 |
Coal (metallurgical)
|
tons
| ...... | ...... | ...... | ...... | ...... | 1,497,321 | 1,403,123 |
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Operational Metrics:
Metrics | 2023 |
Hourly processing capacity
| ...... |
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Financials:
| Units | 2022 | 2021 |
Book Value
|
M USD
| ...... | ...... |
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