Longwall dust control by water infusion

Journal Article · Fri Feb 01 04:00:00 EST 1985 · Min. Eng. (Littleton, Colo.); (United States)

OSTI ID:5578671

Cervik, J

Water infusion to reduce the generation of respirable dust during mining is limited in the USA to a few retreating longwall plough faces in the deeper parts of the Pocahontas No. 3 Coalbed. USBM tests in the Lower Sunnyside Coalbed have shown dust reductions of between 47 and 64%. Because water infusion increases the moisture content of the seam, face air velocities in excess of 2.5 m/s are possible before dust entrainment occurs. An economic analysis shows a 23% reduction in operating costs when coal production is increased by changing from unidirectional to bidirectional mining with water infusion.

• OSTI ID: 5578671
• Journal Information: Min. Eng. (Littleton, Colo.); (United States), Journal Name: Min. Eng. (Littleton, Colo.); (United States) Vol. 37:2; ISSN MIENA
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
012000* -- Coal
Lignite
& Peat-- Mining
COAL DEPOSITS
COAL MINING
COAL SEAMS
CONTROL
COST
DUSTS
ECONOMIC ANALYSIS
ECONOMICS
FLUID INJECTION
GEOLOGIC DEPOSITS
HYDROGEN COMPOUNDS
LONGWALL MINING
MINERAL RESOURCES
MINING
OPERATING COST
OXYGEN COMPOUNDS
PRODUCTION
RESOURCES
UNDERGROUND MINING
WATER