ENPNewswire-August 23, 2019--Mechel Reports Launch of New
Longwall at Southern Kuzbass
"While some mine operators own some pieces of
longwall relocation equipment, it doesn't make commercial sense for most mine operators to own a full suite of
longwall relocation equipment.
Arch Coal announced that it has commenced development of a
longwall mine in Barbour County, West Virginia, that will produce an estimated 3M tons of premium, High-Vol A coking coal annually for sale into an undersupplied global marketplace.
During the U type ventilation of
longwalls (with exploitation being carried out under conditions of high methane hazard), the highest methane concentration levels are present in the intersection area between the
longwall and the tailgate (the called upper corner of the
longwall).
It is common to see roadways laid ahead of workface in
longwall mining field practice [1].
Therefore, quantitatively relating the fracturing of the main roof to the change in strain energy in the rock around the
longwall not only helps to predict the development of stress-induced dynamic disasters, but also helps to improve future design proposals for pre-reinforcement of the mine roadway.
International Resource News-August 16, 2013--Cumberland Coal resumes operations at
longwall mine(C)1994-2013 ENPublishing - http://www.enpublishing.co.uk
Denver, CO, May 31, 2013 --(PR.com)-- Gates Corporation, a global diversified manufacturer of industrial and automotive aftermarket parts, will introduce its patent-pending iLok[TM] coupling for underground coal mines at the 2013
Longwall USA Exhibition & Conference in Pittsburgh, Pa., from June 11-13.
The 29 papers in this collection cover plow technology and its perspectives, and constructing and maintaining opening-out headings for plowing
longwall. The emphasis is on technologies in which the miner manipulates the plow to dig out the coal at the seam, and watches the operation on a screen from elsewhere.