What is Highwall Mining? Highwall mining is a proven primary method for mining coal from outcropping horizontal seams. In this method of mining, an unmanned continuous miner is driven underground and operated in front of the highwall. The highwall mining machine stands on the pit floor or on a bench, directly in front of the exposed seam and makes
Highwall Miners Information. ... Highwall miners extract coal from exposed seams by driving a cutter module into a coal seam under a highwall. The highwall mining machine is positioned on the pit floor or on a bench beside the highwall in front of the coal seam. A cutterhead attached to a string of push beams is thrust into the seam.
Mar 14, 2016· MSHA Rules To Live By – High Wall Safety In Surface Mining . There are also several applicable points from the MSHA Rules To Live By initiative. Never place yourself between a high-wall or stockpile and machinery. If a wall fails you will have a lesser chance of survival because if a machine is blocking your escape.
On Tuesday, October 7, 2014, a 31-year-old utility worker, with 13 years of mining experience, was killed after he crawled 37 feet into an entry mined with a highwall mining machine to retrieve a broken cutter-head-chain from the mining machine. A rock, 8 feet wide, 6 feet long, and 16 inches thick fell on him.
The Cat highwall mining system is a strong, self-propelled machine that operates on contour benches as narrow as 18 m (59 ft). It trams easily from entry to entry and discharges coal in tight spaces. An optional right-angle conveyor system discharges coal on the right or left side on narrow benches.
Highwall mining is another form of mining sometimes conducted to recover additional coal adjacent to a surface mined area. The method evolved from auger mining but does not meet the definition of surface mining since it does not involve the removal of overburden to expose the coal seam.
Commonwealth Mining LLC is a Highwall Mining Services Co. that has Operated Highwall Miners in Ohio, West Virginia, Kentucky, Alabama and Virginia. We have provided consulting for Highwall Mining Operations in Australia and India as well as currently providing consulting services to Highwall Mining Companies throughout the United States.
production method, analysis shows that auger and highwall mining appears to be as safe as surface coal mining (6). However, there are geotechnical considerations with highwall mining that require careful engineering to realize the full economic and safe potential of highwall mining. Highwall stability is the overriding concern in highwall mining.
ply a new Jeffrey model 102HP mining machine to be extensively modified by the Bureau for teleoperation. Later, it was agreed to use the Bureau's multiple-unit continuous haulage (MUCH) system as part of this new teleoperated highwall mining system (THMS). Highwall mining involves the recovery of coal reserves
Apr 29, 2016· In its basic application, highwall mining is a technique utilized after the open cut portion of a reserve has been mined, sometimes prior to the introduction of underground mining (Seib 1993). In these mining systems, a continuous miner or an auger machine is …
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Professional Highwall. located in Beckley, WV is your one stop WorldWide Highwall Mining Experts! Over the last 2 years we have successfully brokered 4 used Highwall Miners. With less than 100 machines built my staff knows where every machine is located.
highwall mining in the last 20 years were caused by highwall collapse, and the only fatality that occurred in the last five years at highwall mining operations was again due to highwall collapse. Thus insuring highwall stability through proper ground control engineering is of paramount importance to safe highwall mining operations.
Highwall mining is a proven primary method for mining coal from exposed seams. In this method of mining, an unmanned cutter module is driven underground and operated in front of the highwall. The highwall mining machine stands on the pit loor or on a bench, directly in front of the exposed seam and makes long parallel rectangular drives into
2016 Coal Operators' Conference The University of Wollongong 522 10 – 12 February 2016 A REVIEW OF HIGHWALL MINING EXPERIENCE AND PRACTICE Sungsoon Mo 1, Chengguo Zhang, Ismet Canbulat and Paul Hagan Abstract: The highwall mining method originated in the USA in the 1940s. The aim of the method was to recover coal from a surface mine that has reached its economic limit.
• The Cat highwall mining system is a strong, self-propelled machine that operates on contour benches as narrow as 18 m (59 ft). • It trams easily from entry to entry and discharges coal in tight spaces. An optional right-angle conveyor system discharges coal on the right or left side on narrow benches.
No portable auger or highwall miner operator should relocate and commence mining until the MSHA District in which the auger or highwall mining machine is to operate has received and acknowledged that an appropriate highwall plan conforms to the requirements of 30 C.F.R. § 77.1000.
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VENTILATION OF HIGHWALL MINING TO CONTROL METHANE CONCENTRATION AT THE MOURA MINE | PAGE i Abstract Methane is a highly explosive gas released during coal mining that presents an imminent problem when mixed with oxygen in regard to maintaining safe working conditions in underground and highwall mines.
Jun 08, 2014· Eventually, the continuous miners used in the underground mining of coal were developed and outfitted to also recover coal from surface high walls. This spurned the development of new highwall mining machine systems such as the Terex SHM, the Highwall Hog, and the Addcar System developed in 1990.