Coal companies invest in more longwall capacity

Journal Article · Wed Feb 15 04:00:00 EST 2006 · Coal Age

OSTI ID:20727724

Fiscor, S

This year's annual survey shows not much has changed since last year. The overall population stands at 47 mines operating 53 longwalls. CONSOL Energy remains the leading US longwall operator with 13 installations, followed by Arch Coal (5), Robert E. Murray (5) and Massey Energy (4). West Virginia remains the leading longwall mining state with 14 faces in 2005, followed by Pennsylvania (8), Alabama (7), Utah (7) and Colorado (5). A detailed table gives for each longwall installation, the ownership, seam height, cutting height, panel width and length, overburden, number of gate entries, depth of cut, model of equipment used (shearer, haulage system, roof support, face conveyor, stage loader, crusher, electrical controls and voltage to face). 1 photos., 2 tabs.

• OSTI ID: 20727724
• Journal Information: Coal Age, Journal Name: Coal Age Journal Issue: 2 Vol. 111; ISSN 0009-9910; ISSN COLAA7
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
COAL MINES
COAL SEAMS
CONTINUOUS MINERS
DEPTH
HAULAGE EQUIPMENT
HEIGHT
LENGTH
LONGWALL MINING
OVERBURDEN
SHEARER LOADERS
SUPPORTS
US ORGANIZATIONS
USA
WORKING FACES