160 likes | 624 Vues
Bituminous Coal Mining. Source: http://www.drexel.edu/coe/enggeo/rocks2/bituminous_coal800.jpg. Overview of Bituminous Coal. Often called “soft coal” Easier to mine than Anthracite Cheaper to mine than Anthracite Dirtier when burned Found all over the world
E N D
Bituminous Coal Mining Source: http://www.drexel.edu/coe/enggeo/rocks2/bituminous_coal800.jpg
Overview of Bituminous Coal • Often called “soft coal” • Easier to mine than Anthracite • Cheaper to mine than Anthracite • Dirtier when burned • Found all over the world • Southwest PA history was shaped by it Source: Class discussions
Southwest PA (exceptions include Broad Top Field and Snowshoe Field) West Virginia Virginia Ohio Kentucky Powder River Basin Colorado Wyoming Montana North Dakota Illinois Where Bituminous Coal is Mainly Mined Source: http://www.eia.doe.gov/cneaf/coal/page/acr/table14.html
Types of Bituminous Coal • Bituminous: 45-86% carbon, heat value of 10,500 to 15,500 BTU’s per pound • Sub-Bituminous: 35-45% carbon, heat value between 8,300 and 13,000 BTU’s per pound • Lignite: 25-35% carbon, heat value ranging between 4,000 and 8,300 BTU’s per pound Source: http://www.ket.org/Trips/Coal/AGSMM/agsmmtypes.html
How Bituminous Coal is Mined • Deep Mines • Room and Pillar • Long Wall • Surface Mines • Open Pit • Mountain Top Removal • Strip Mines Source: Class discussions
Equipment Used in Mining Bituminous Coal • Hand Tools • Picks and Shovels • Dynamite • Hand and Air Drills • Long Wall Machine • Continuous Miner • Mine Cars • Roof Supports and Roof Bolters Source: Class discussions
Modern Equipment Source: http://www.joy.com/jmm/photo_gallery/photo-display.html?10SC-Shuttle-Car
Source: http://www.joy.com/jmm/photo_gallery/photo-display.html?12CM27-Underground
Source: http://www.joy.com/jmm/photo_gallery/photo-display.html?Longwall-Face
Source: http://www.joy.com/jmm/photo_gallery/photo-display.html?Support-and-AFC
Bituminous Coal Reserves • Total US Reserve • 18,944 million short tons (includes anthracite) • Total Pennsylvania Reserves • 616 million short tons • Pennsylvania Bituminous Reserves • 596 million short tons Source: http://www.eia.doe.gov/cneaf/coal/page/acr/table14.html
Coal Prices in PA • Price of Pennsylvania Bituminous Coal (2005). • Surface • $36.76 per ton • Underground • $36.18 per ton Price Per Ton Year Source: http://www.eia.doe.gov/cneaf/coal/page/acr/table28.html
Coal Production In the US 1890-2005 Source: http://www.eia.doe.gov/cneaf/coal/page/coal_production_review.pdf
References • Energy Information Administration. US Government. Accessed April 2007 http://www.eia.doe.gov/cneaf/coal/page/acr/table14.html • http://www.drexel.edu/coe/enggeo/rocks2/bituminous_coal800.jpg • “Types of Coal.” American Coal Foundation accessed April 2007 http://www.ket.org/Trips/Coal/AGSMM/agsmmtypes.html • Mining Equipment Photo Gallery. Joy Mining Machinery. http://www.joy.com/jmm/photo_gallery/index.html accessed April 2007 • Class Discussions. EGEE 210, 211. Spring Semester 2007, Penn State University.University Park PA, 2007. Instructors, Dr. Eser, Dr. Mathews.