Cutter drum assembly for longwall mining machines
A cutter drum assembly for longwall mining machines incorporating means for spraying trickle water onto the face area being mined as the cutter drum rotates. This requires valving for supplying high-pressure liquid to only those nozzles adjacent the face area as the drum rotates. In accordance with the invention, the valving takes the form of individual valves spaced around the drum, the valves being actuated by a relatively low-pressure control medium (i.e., a liquid) which obviates the necessity for the close tolerances and rigid sealing requirements of prior art devices where high-pressure liquid valve assemblies were built into the rotary connection between a support shaft and the drum which rotates about it.
- Assignee:
- Eisengiesserei m.b.H. (Germany, Federal Republic of); Gebr. Eickhoff Maschinenfabrik (Germany, Federal Republic of)
- Patent Number(s):
- US 4471998
- OSTI ID:
- 5878433
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
420206* -- Engineering-- Mining & Drilling Equipment & Facilities-- (1980-1989)
CONTAINERS
CONTROL EQUIPMENT
CUTTER LOADERS
CUTTING MACHINES
DESIGN
EQUIPMENT
FLOW REGULATORS
FLUID FLOW
HAULAGE EQUIPMENT
LIQUID FLOW
LOADERS
LONGWALL MINING
MATERIALS HANDLING EQUIPMENT
MECHANICAL STRUCTURES
MINE ROADWAYS
MINING
MINING EQUIPMENT
MOTION
NOZZLES
ROTATION
SPRAYS
SUPPORTS
TUNNELS
UNDERGROUND FACILITIES
UNDERGROUND MINING
VALVES
WORKING FACES