Water-jet-assist cutting evaluation and cutting trials. Research report (Final)

Technical Report · Tue Oct 29 04:00:00 EST 1991

OSTI ID:7205301

Neumann, U

Mining coal using the longwall method is becoming increasingly popular in the United States. Unfortunately, the dust levels liberated by various longwall equipment can exceed the permissible limits and therefore reduce the productivity. In 1984, the Eickhoff Corporation was awarded Contract no. J0145039 to build and demonstrate a water-jet-assisted shearer for the multiple purpose of reducing the dust levels, increasing the material size, and improving the bit service life. Two shearers were built, of which one was operated for two panels in a United States mine. Dust measurements and bit wear measurements were conducted and included in the report. The levels of the respirable dust were reduced by up to 52% and the service life of the bits was increased due to the cooling and lubricating effect of the water jets.

• Research Organization: Eickhoff Corp., Pittsburgh, PA (United States)
• OSTI ID: 7205301
• Report Number(s): PB-92-191709/XAB; CNN: J0145039
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
012030* -- Coal
Lignite
& Peat-- Underground Mining-- (1987-)
AIR POLLUTION
AIR POLLUTION CONTROL
AIR POLLUTION MONITORING
CARBONACEOUS MATERIALS
COAL
COAL FINES
COAL MINING
CONTROL
CUTTER LOADERS
CUTTING MACHINES
CUTTING TOOLS
DESIGN
DRILL BITS
DRILLING EQUIPMENT
DUSTS
ENERGY SOURCES
EQUIPMENT
FIELD TESTS
FOSSIL FUELS
FUELS
HAULAGE EQUIPMENT
HYDRAULIC MINING
INDOOR AIR POLLUTION
JETS
LIFETIME
LOADERS
LONGWALL MINING
LUBRICATION
MATERIALS
MATERIALS HANDLING EQUIPMENT
MINING
MINING EQUIPMENT
MONITORING
PARTICLE SIZE
PERFORMANCE
POLLUTION
POLLUTION CONTROL
SERVICE LIFE
SHEARER LOADERS
SIZE
TESTING
TOOLS
UNDERGROUND MINING