Coal Mining Methods Ppt

Coal mining methods - SlideShare

03/04/2017· Coal Mining is the term that encompasses the physical extraction or removal of coal from the Earth’s Surface. When coal is used as fuel in power generation, it is referred to as Steaming or Thermal coal while those which are used to create coke for steel manufacturing is referred to as Coking or Metallurgical Coal. Coal can be mined by both Surface and Underground Mining methods. Surface mining is a form of mining …

Coal Mining Method.ppt - Methods of Mining Mining …

Coal Mining Method.ppt - Methods of Mining Mining Methods 1... • COAL RESERVES COMPUTATION • Coal reserve classification prescribed by Dept. of Energy: • POSITIVE RESERVES - The point... • COAL RESERVES COMPUTATION • MINEABLE RESERVES - It is computed by multiplying the proven in-situ reserve with ...

Mining Methods - SlideShare

05/12/2008· Mining Methods. 1. PlotMaker Mining Methods Blackout day presentation - 5 th December 2008 VENKAT M. Team Lead – Minex, INDIA. 3. Mining Methods <ul><li>Coal is mined by two main methods - surface or ‘ opencast ’ mining and ‘ underground ’ mining. </li></ul><ul><li>The choice of method is largely determined by the depth, geology of the coal …

COAL MINING.ppt - Scribd

Coal Mining-Methods. Mining Methods Coal is mined by two main methods surface or opencast mining and underground mining. The choice of method is largely determined by the geology of the coal deposit; the majority of the world's coal reserves are recoverable by underground mining.

PPT – Coal Mining PowerPoint presentation | free to ...

Coal Mining The goal of coal mining is to economically remove coal from the ground. Coal is valued for its energy content, and since the 1880s is widely used to ... – A free PowerPoint PPT presentation (displayed as a Flash slide show) on PowerShow.com - id: 42d752-ZTVjY

PPT – The History of Coal Mining PowerPoint presentation ...

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Surface mining - SlideShare

16/10/2015· • Mountaintop removal: Commonly associated with coal mining, which involves taking the top of a mountain off to reach ore deposits at depth. 8. DIFFERENT TYPE OF MACHINERY AND TRANSPORT SYSTEM USED IN SURFACE MINES • Drill Machine • Shovel + Dumper • Dragline • Surface Miner • Bucket Wheel Excavator • In-pit Crusher + Spreader • Belt Conveyors System • Rail …

Coal presentation - SlideShare

23/01/2012· Coal presentation. 1. Current Options, Future Problems: New York City’s Current Fuel Options, the Energy Situation, and Their Effects on the Ecological Footprint Presented by: …

Mineral resources and types of mining - SlideShare

25/07/2014· Hydro-mining - involves using high pressure water to blast against the face of seams to remove coal and carry it to a dewatering plant or to the surface. This technique improves the efficiency of coal extraction, but also increases the potential for impacts to the environment from mine drainage into surrounding soils and streams. 6.

Coal mining methodsCoal mining methods

Mining methodsMining methods. Surface/open cut mines: Strippg;g mining; dragline. open pit mining; truck & shovel, BWEBWE etcetcBWE etc. Underground mines: manual, semiUnderground mines: manual, semi-- mechidfllhanized, fullyy--mecmechihiddhanized. Bord/RoomBord/Room--andand--pillar mining pillar mining.

An overview of coal and its uses PowerPoint - Oresome ...

Can be downloaded as a PPT file. Key learning objectives . Students identify coal as an important resource and describe how it is used; Students describe how coal is formed and explain why it is regarded as a non-renewable resource. Students describe the methods of mining coal…

Mine Planning Design | Coal Mining | Mining

COAL MINE PLANNING & DESIGN-A.V.REDDY, ADDL.MANAGER The Singareni Collieries Company Limited Mining Methods Generally Coal is being mined by two main methods 1. Surface or Opencast mining 2. Underground mining. The choice of method is largely determined by the depth, thickness and no. of coal seams, geology of the coal deposit and other factors. ...

Pennsylvania Bureau of Deep Mine Safety

Miners cut into an adjacent abandon coal mine. 60 Million gallons of water inundated their mine. 18 miners were working in the mine when the water rushed in. 9 miners made it to the surface 9 other miners were trapped The Rescue For 78 hours the trapped miners waited for rescuers to free them. Drillers drilled a 6 inch borehole in to the area that the miners were in 11 hours after they were ...

Mining_Methods_IV_pix - | Course Hero

View Mining_Methods_IV_pix.ppt from GEO 001 at MSU - Iligan Inst of Tech.

Coal Mining and Production - MIGA

Underground mining methods vary according to the site conditions, but all involve the removal of seams followed by more or less controlled subsidence of the overlying strata. Raw coal may be sold as mined or may be processed in a beneficiation/washing plant to remove noncombustible materials (up to 45% reduction in ash content) and inorganic sulfur (up to 25% reduction). Coal beneficiation is ...

CHAPTER 11 Mining Technology - Princeton

Underground mining methods usually leave a significant portion of the coal reserve in the ground, Some under-ground mines recover only30 to 50 percent of the minable resource, although, averaged over all underground mines in the United States, the recovery ratio is63 percent. Sur- face mines, on the other hand, typically re-cover from70 to 90 percent of the minable resource. Introduction and ...

www.pwc.com 2012 Americas School of Mines

Mining Methods 14 Coal and tar sands operations typically involve moving large amounts of waste (often called overburden)to gain access to the economic mineral. Eagle Mountain is part of the Fording River operations in southeastern British Columbia. Fording River produces both metallurgical (coking) coal for the steel industry and thermal coal for power plants in Alberta. Fording River's ...

4 Coal Mining and Processing | Coal: Research and ...

The cost per ton of mining coal by surface methods is generally lower than that by underground methods. In the United States, in addition to a continuous growth in coal production since the 1960s, there has been a dramatic shift in production from underground mining to surface mining . In the Powder River Basin (PRB), where deposits of coal more than 100 feet thick occur close to the surface ...

Coal mining - Choosing a mining method | Britannica

Mining methods Contour strip mining. Contour mining is commonly practiced where a coal seam outcrops in rolling or hilly terrain. Area strip mining. Area mining, applied where the terrain is flat, commences with a trench or “ box cut” made through... Open-pit mining. In open-pit mining of the coal ...

Coal Types, Formation and Methods of Mining - …

Contour mining, occurring in mountainous terrain, follows a coal seam along the side of the hill. When contour mining becomes too expensive, additional coal can often be produced from the mine’s highwall by the use of augers or highwall miners. Open pit mining is usually found where coal seams are thick and can reach depths of hundreds of feet.

An overview of coal and its uses PowerPoint - Oresome ...

Can be downloaded as a PPT file. Key learning objectives . Students identify coal as an important resource and describe how it is used; Students describe how coal is formed and explain why it is regarded as a non-renewable resource. Students describe the methods of mining coal…

coal mining and processing ppt - klauninkowo.pl

PPT – Coal Mining PowerPoint presentation | free to. Coal Mining The goal of coal mining is to economically remove coal from the ground Coal is valued for its energy content, and since the 1880s is widely used to– PowerPoint PPT presentation Number of Views:5335 . Mining Methods SlideShare. 05122008· PlotMaker Mining Methods Blackout day presentation 5 th December 2008 VENKAT M …

Pennsylvania Bureau of Deep Mine Safety

Miners cut into an adjacent abandon coal mine. 60 Million gallons of water inundated their mine. 18 miners were working in the mine when the water rushed in. 9 miners made it to the surface 9 other miners were trapped The Rescue For 78 hours the trapped miners waited for rescuers to free them. Drillers drilled a 6 inch borehole in to the area that the miners were in 11 hours after they were ...

Coal Mining and Production - MIGA

Underground mining methods vary according to the site conditions, but all involve the removal of seams followed by more or less controlled subsidence of the overlying strata. Raw coal may be sold as mined or may be processed in a beneficiation/washing plant to remove noncombustible materials (up to 45% reduction in ash content) and inorganic sulfur (up to 25% reduction). Coal beneficiation is ...

CHAPTER 11 Mining Technology - Princeton

Underground mining methods usually leave a significant portion of the coal reserve in the ground, Some under-ground mines recover only30 to 50 percent of the minable resource, although, averaged over all underground mines in the United States, the recovery ratio is63 percent. Sur- face mines, on the other hand, typically re-cover from70 to 90 percent of the minable resource. Introduction and ...

Coal Types, Formation and Methods of Mining - …

Contour mining, occurring in mountainous terrain, follows a coal seam along the side of the hill. When contour mining becomes too expensive, additional coal can often be produced from the mine’s highwall by the use of augers or highwall miners. Open pit mining is usually found where coal seams are thick and can reach depths of hundreds of feet.

1.1 PHASES OF A MINING PROJECT - ELAW

ores that are extracted using strip mining methods, including aluminum (bauxite), phosphate, and uranium. The Guidebook also does not discuss mining involving extraction of coal or aggregates, such as sand, gravel, and limestone. 4 Guidebook for Evaluating Mining Project EIAs sensitive areas or are near previously isolated communities. If a proposed mining project involves the construction of ...

Coal Sampling and Analysis Standards

Coal Centre – Coal sampling and analysis standards 4 Abstract Each year, billions of tonnes of coal are traded in regional and international market for use in power generation, steel and cement making, and many other purposes. In commercial operations, the price of coal

10 Different Types of Mining Operations and Mines – …

There are different methods of mountaintop removal coal mining, including the box-cut method, steep-slope method, cross-ridge method, and a few others. Mountaintop removal involves several steps, as described below. The vegetation and topsoil of the mountaintop are removed first. The trees are then destroyed, usually by burning or some other method. In this step, blasting is used to blow up ...

Types of Underground Mining Method Comparison

16/03/2017· Methods of mining include stoping, caving, and various methods of working large deposits which, in addition to the method of actually breaking the ore, require elaborate and definite plans of, development of the orebody. The ordinary methods of stoping are too familiar to all for any elaborate discussion, but it has seemed advisable to review the subject and give the principal advantages and ...

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