Coal Load
Coal Load
Coal Mining Industry
The coal mining industry segment produces coal, a fossil fuel that is used primarily for electric power generation and in the production of steel. Like oil, coal is formed over millions of years from plant and animal matter, but unlike oil, coal is a solid, and therefore miners must go into the earth to recover it. Many coal seams are located close to the surface, however, which makes the extraction of this resource easier.
Surface mining of coal typically uses the method known as strip mining, which is usually more cost-effective than underground mining and requires fewer workers to produce the same quantity of coal. In strip mining, workers use huge earthmoving equipment, such as power shovels or draglines, to scoop off the layers of soil and rock covering the coal seam. Once the coal is exposed, it is broken up by using explosives, and then smaller shovels lift it from the ground and load it into trucks. Mining companies are required by Federal, State, and local laws to restore the mined land after surface mining is completed; as a result, the overburden and topsoil are stored after removal so that they can be replaced and native vegetation replanted.
Underground mining is used when the coal deposit lies deep below the surface of the earth. When developing an underground mine, miners first must dig tunnels deep into the earth near the place where the coal is located. Depending on where the coal seam is in relation to the surface, tunnels may be vertical, horizontal, or sloping. Entries are constructed so that miners can get themselves and their equipment to the ore and carry it out, while allowing fresh air to enter the mine. Once dug to the proper depth, a mine’s tunnels interconnect with a network of passageways going in many directions. Using the room-and-pillar method, miners remove sections of the coal as they work the coal seam from the tunnel entrance to the edge of the mine property, leaving columns of coal in place to help support the ceiling together with long steel bolts. This process is then reversed, and the remainder of the ore is extracted, as the miners work their way back out. In the case of longwall mining of coal, self-advancing roof supports, made of hydraulic jacks and metal plates, cover the area being mined. As coal is removed, the entire apparatus advances, allowing the ceiling in the mined area to cave in as the miners work back towards the tunnel entrance. Underground mining does not require as extensive a reclamation process as surface mining; however, mine operators and environmental engineers still must ensure that ground water remains uncontaminated and that abandoned mines do not collapse.
About the Author
Bryan Peter is a Copywriter of Coal Mining We provide latest updates in the mining industry, the rich information in this site gives valuable inputs with regards to types of metals, minerals & precious stones and their properties. For more information visit: Underground Mining contact him at brayan.peter@gmail.com
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TENDER TOP COVER OIL IHC PART P522 075 HO SCALE NEW |  |
0 Bid | US $9.99 | 22m |
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4 HO Gauge Freight Cars in Excellent Condition | |
1 Bid | US $9.99 | 2h |
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HO SCALE CUSTOM BUILT SMALL TRACKSIDE WRECKED ABANDONED 40 GONDOLA SCENE SP | |
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US $17.95 | 2h 15m |
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MODEL POWER N SCALE 45’ STEEL GONDOLA W COAL LOAD ATSF | |
1 Bid | US $1.99 | 2h 36m |
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Marx HO Scale Lehigh Valley Coal Hopper Car with Load | |
0 Bid | US $4.99 | 2h 43m |
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Bachmann HO Scale Cotton Belt Coal Hopper Car with Load | |
0 Bid | US $3.99 | 2h 45m |
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3 GEORGIA RAILROAD HOPPER CARS W O COAL LOAD 21908 HO SCALE BNIB | |
8 Bids | US $14.50 | 2h 53m |
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SOUTHERN O 27 Coal Hopper Set by RMT Trains Very Nice New | |
0 Bid | US $69.00 | 3h 7m |
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CSX O 27 Coal Hopper Set by RMT Trains Very Nice New | |
0 Bid | US $69.00 | 3h 8m |
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UNION PACIFIC 100 TON HOPPERS 2 CAR LOT MTL N Scale | |
0 Bid | US $28.00 | 3h 32m |
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MINI CHEFS EXPRESSwith a real 4 6 4 SMOKING LOCOMOTIVE | |
0 Bid | US $119.99 | 3h 33m |
![O Gauge 1 48 scale] 3 Weaver Plastic Chesapeake Ohio 2 Bay Hoppers](http://www.leavintrain.com/images/e/260950371422_0.jpg) |
O Gauge 1 48 scale] 3 Weaver Plastic Chesapeake Ohio 2 Bay Hoppers | |
5 Bids | US $29.92 | 3h 43m |
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3 Oldtimer Gondola Loads of GRAVEL fits Bachmann | |
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US $6.00 | 3h 45m |
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3 Oldtimer Gondola Loads of COAL fits Bachmann | |
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US $6.00 | 3h 46m |
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40 Hopper Car Used Great Northern with gravel load | |
1 Bid | US $4.00 | 3h 57m |
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40 4 bay Hopper Car Used Southern RR has coal load | |
1 Bid | US $4.00 | 3h 58m |
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40 4 bay Hopper Car Used Rock Island RR has coal load | |
0 Bid | US $3.00 | 3h 59m |
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40 3 bay Hopper Car Used MKT with Coal load | |
1 Bid | US $4.00 | 4h 1m |
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MTH O O 27 Rail King 30 79014 READING Hopper Car With Operating Coal Load | |
0 Bid | US $39.95 | 4h 53m |
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Stewart NYC coal hopper | |
0 Bid | US $8.00 | 5h 24m |
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Tyco Burlington coal hopper | |
0 Bid | US $6.00 | 5h 24m |
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MTH Premier 20 3311 1 Western Maryland 2 10 0 Decapod Steam Engine PS 20 LN C 8 | |
0 Bid | US $775.00 | 5h 25m |
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Spectrum On30 Scale Train Steam Locomotive Analog North Pole Southern | |
10 Bids | US $32.74 | 5h 38m |
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3 loads of COAL for N SCALE Gondolas | |
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US $6.00 | 6h 3m |
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Vintage LIFE LIKE Model RR HO Scale BOBS DUMPING STATION w Train New in Box | |
0 Bid | US $19.99 | 6h 28m |
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NWSL Milwaukee Road 2 6 2 Prairie Class K 1 Custom painted weathered loco 912 | |
0 Bid | US $295.00 | 6h 49m |
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Norfolk and Western NW coal hoppers | |
9 Bids | US $143.50 | 6h 54m |
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Scale Model Simulated Coal Material FREE SHIP | |
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US $8.99 | 7h 9m |
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Scale Model Simulated Coal Material HO FREE SHIP | |
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US $8.99 | 7h 11m |
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Scale Model Simulated Coal Material N FREE SHIP | |
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US $8.99 | 7h 12m |
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Scale Model Simulated Coal Material O FREE SHIP | |
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US $8.99 | 7h 14m |
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Scale Model Simulated Coal Material S FREE SHIP | |
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US $8.99 | 7h 14m |
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ART 21407 NYC Pacific Steam Locomotive with TenderMintCondition G Scale | |
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US $425.00 | 7h 30m |
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N Scale N Gauge simulated coal material Z scale 5 ounces free shipping | |
1 Bid | US $4.99 | 7h 45m |
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Reading Lines Model Railroad Gondola With Coal Load | |
0 Bid | US $4.99 | 8h 18m |
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SCL Model Railroad Gondola 163159 | |
0 Bid | US $9.99 | 8h 18m |
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K line coal hopper with load SOUTHERN PACIFIC | |
0 Bid | US $5.99 | 8h 23m |
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HO Scale PROTO 2000 Drop End Gondola Pittsburgh Lake Erie w DuctworkPLE KIT | |
0 Bid | US $20.00 | 8h 28m |
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HO Scale PROTO 2000 526 Drop End Gondola Western Pacific w Ductwork WP KIT | |
0 Bid | US $20.00 | 8h 28m |
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MTH CSX 4 Bay Hopper w Coal 20 90019B NIB Lionel K Line | |
1 Bid | US $29.99 | 8h 29m |
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Bachmann MStL Hopper with Coal Load Road Number 541085HO Scale Train 5 3 4 | |
1 Bid | US $2.95 | 8h 40m |
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LionelDIECASTDuluth Missabe Iron Range Coal Dump Car 6 29807 | |
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US $59.99 | 8h 46m |
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K Line Classic Union Pacific Caboose with Smoke Unit MTH Union Pacific Hopper | |
1 Bid | US $45.95 | 9h 5m |
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Lot of 5 Coal Hoppers including 2 MTL | |
9 Bids | US $15.55 | 9h 14m |
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PPRJ1A2 10 4by 3rd RailAWSOME Lionel MTH Weaver K Line | |
0 Bid | US $499.99 | 9h 16m |
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N Scale New Haven 33 USRA Panel Side Twin Bay Hopper w Coal Load ByMicroTrains | |
7 Bids | US $8.00 | 9h 32m |
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Z WDW Full Throttle Chesapeake Ohio for Progress Rd79301 3 Bay Hopper w Load | |
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US $19.99 | 9h 35m |
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G Scale Undecorated Gondola RED OR BLACK | |
0 Bid | US $29.99 | 9h 43m |
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Vintage Lot HO Hoppers CO 1143 DRGW 18350 UP 82100 CBO 188000 Coal Loads | |
0 Bid | US $9.99 | 10h 1m |
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Complete NYC Dreyfuss Engine and 4 car Streamlined Passenger Set Protosound 2 | |
0 Bid | US $380.00 | 10h 32m |
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Rail King 4 6 2 Pennsylvania K 4 Tender | |
0 Bid | US $176.50 | 10h 35m |
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LIONEL SOUTHERN PACIFIC OPERATING COAL DUMP sp train car o gauge 6 30128 CD | |
9 Bids | US $26.50 | 11h 16m |
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Northern Pacific NP Ore Jenny Ore Hopper with load Custom Painted 2 | |
1 Bid | US $7.00 | 11h 24m |
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Ho Scale Souther Pacific Coal Car | |
1 Bid | US $5.99 | 11h 26m |
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LIONEL UNION PACIFIC COAL HOPPER up train 6 30128 H | |
5 Bids | US $12.50 | 11h 30m |
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O Scale Harry Roberts Brass Beams Lot of 10 PRICE REDUCED | |
0 Bid | US $50.00 | 11h 36m |
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Life Like VM Pennsylvania 40 Gondola car w coal load MWKD | |
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US $9.74 | 11h 43m |
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1956 57 LIONEL SMOKE WHISTLE TRAIN SET Set number 1583WS Original Box | |
7 Bids | US $113.61 | 13h 43m |
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HO Scale KADEE 7037 N C StL 50 Ton AAR 2 Bay Open Hopper with Coal Load | |
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US $37.98 | 21h 12m |
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LOTS LIONEL 2005 VIRGINIAN COAL HOPPER 6 52380 WITH ETD COAL LOAD NEW IN BOX | |
0 Bid | US $85.00 | 21h 15m |
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ROLLER BEARING MODELS 627 302 PRR 100 TON TRIPLE HOPPER HO SCALE NEW IN BOX | |
0 Bid | US $14.99 | 21h 49m |
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KADEE CARS 7010 HO READING ROAD 86008 50 TON AAR STANDARD 2 BAY OFFSET HOPPER | |
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US $32.99 | 21h 49m |
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KADEE CARS 7025 HO READING ROAD 86502 50 TON AAR STANDARD 2 BAY OFFSET HOPPER | |
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US $32.99 | 21h 49m |
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HO Scale lot English Passenger Cars Athearn Varney Gondolas Hoppers | |
0 Bid | US $19.95 | 22h 12m |
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a southern pacific car with a load | |
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US $9.99 | 22h 55m |
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3 Atlas N scale freight cars Boston Maine coal hoppers 7507 7510 7564 | |
4 Bids | US $9.65 | 23h 44m |
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