Longwall mining system
Patent
·
OSTI ID:5971609
A longwall mining system includes a bidirectional shearer and a roof supporting structure. The shearer includes a pair of angled floor drums, a pivotable roof drum and a loading conveyor. Each drum has a plurality of picks disposed about the drum surface for cutting a material to be mined and a plurality of vanes disposed on the drum surface for carrying the cut material to the loading conveyor. The roof supporting structure includes a load carrying shield which is braced by a pair of supports. The supports are located under the shield in a position between the shearer and a face conveyor. The face conveyor, which is fed by the loading conveyor, carries the mined material to main conveyor for haulage to the outside.
- Assignee:
- Foster-Miller Associates Inc
- Patent Number(s):
- US 4382633
- OSTI ID:
- 5971609
- Country of Publication:
- United States
- Language:
- English
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