Mineral mining installation

Patent · Tue Apr 20 04:00:00 EST 1982

OSTI ID:5218081

Plevak, L; Weirich, W

A longwall mineral mining installation has a longwall conveyor and a plurality of roof support units positioned side-by-side at the goaf side of the conveyor. The hydraulic appliances of the roof support units, such as their hydraulic props, hydraulic advance rams and hydraulic control valves, are supplied with pressurized hydraulic fluid from hydraulic supply lines which run along the goaf side of the conveyor. A plurality of flat, platelike intermediate members are provided at the goaf side of the conveyor. These intermediate members are formed with internal ducts for feeding the hydraulic fluid from the supply lines to the hydraulic appliances of the roof support units.

• Assignee: Gewerkschaft Eisenhutte Westfalia (Germany, Federal Republic Of)
• Patent Number(s): US 4325659
• OSTI ID: 5218081
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
012000* -- Coal
Lignite
& Peat-- Mining
COAL MINES
CONTROL EQUIPMENT
CONVEYORS
EQUIPMENT
FLOW REGULATORS
HAULAGE EQUIPMENT
HYDRAULIC EQUIPMENT
LONGWALL MINING
MATERIALS HANDLING EQUIPMENT
MECHANICAL STRUCTURES
MINES
MINING
MINING EQUIPMENT
ROOFS
SUPPORTS
UNDERGROUND FACILITIES
UNDERGROUND MINING
VALVES