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Showing posts from October, 2016

Coal India output won’t keep imports low

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Coal India output won’t keep imports low:- Despite Coal India reporting the sharpest production growth in two decades in FY15 and the momentum expected to remain in the current fiscal... Despite Coal India reporting the sharpest production growth in two decades in FY15 and the momentum expected to remain in the current fiscal, the country’s coal imports are set to accelerate. Power companies, one of the major consumers of coal, have firmed up plans to import 73 million tonne of coal this fiscal, up more than a third from last year. Higher imports have been scheduled because of the fuel’s declining prices in global markets and the transportation bottlenecks that made domestic coal relatively unattractive for coastal power stations. With the planned hike in coal imports by power plants, the consensus estimate of the overall coal imports for the fiscal—up 10% at 220 million tonne—could go awry. The relentless rise in coal imports in recent years has put pressure on ...

Trappers, Hurriers, and Hewers: Working in a Coal Mine

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Trappers, Hurriers , and Hewers: Working in a Coal Mine:-                                       The Industrial Revolution really got its start in Great Britain during the second half of the  eighteenth century. A great many workers were needed in the burgeoning factories and in coal mines to provide the fuel for the factory machinery. Our ancestor came of age in the late 1700s, and would have been accustomed to working to help provide for his family – with a widowed mother and several siblings, there was no other option. Many jobs were available, although working conditions were appalling. Thomas Thomas’ early life, his employment – first as a shepherd, later as a coal miner – is mentioned in family held sources, but we have no details of how old he was when he took each of these jobs. Clearly, working in a coal mine would have been chosen out of necessity – it must have paid a ...

Coal mining in india

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Coal mining in india  Coal mining in India   has a long history of commercial exploitation covering nearly 220 years starting in 1774 with John Sumner and Suetonius Grant Heatly of the East India Company in the Raniganj Coalfield along the Western bank of Damodar river. However, for about a century the growth of Indian coal mining remained sluggish for want of demand but the introduction of steam locomotives in 1853 gave a fillip to it. Within a short span, production rose to an annual average of 1 million metric tons (1.1 million short tons). India could produce 6.12 million metric tons (6.75 million short tons) per year by 1900 and 18 million metric tons (20 million short tons) per year by 1920. The production got a sudden boost from the First World War but went through a slump in the early thirties. The production reached a level of 29 million metric tons (32 million short tons)...

Mining machinery engineering

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Mining machinery engineering:- Mining Machinery Engineering  is an interdisciplinary branch of  engineering  that applies the principles of  mechanical engineering ,  electrical engineering  and  mining engineering  for analysis, design, manufacturing and maintenance of  mining equipment . It includes study of various aspects of equipment used in  earthworks ,  mineral processing ,  bulk material handling ,  drilling  and  construction . History Surface mining equipment evolved at a high pace in the 20th century as the scale of mining grew up. In the first twenty years of the 1900s, steam power was largely replaced by  internal combustion engines  and  electric motors . Till the 1970s such equipment mainly used mechanical system and cables for power transmission after which they started to be replaced by  hydraulic drive system  for small machines. However, mechanical and c...

MINING ENGINEERING

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MINING ENGINEERING:- MINING ENGINEERING is an engineering discipline that applies science and technology to the extraction of minerals from the earth. Mining engineering is associated with many other disciplines, such as geology, mineral processing and metallurgy, Geo-technical engineering and surveying. A mining engineer may manage any phase of mining operations – from exploration and discovery of the mineral resource, through feasibility study, mine design, development of plans, production and operations to mine closure. With the process of Mineral extraction, some amount of waste and uneconomic material are generated which are the primary source of pollution in the vicinity of mines. Mining activities by their nature cause a disturbance of the natural environment in and around which the minerals are located. Mining engineers must therefore be concerned not only with the production and processing of mineral commodities, but also with the mitigation of damage to the environment bot...

ABOUT MINING

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ABOUT MINING :- Mining has been a part of the Earth’s history since prehistoric times. Mining has played a role throughout the millennia – from Neanderthals’ use of stone, to ancient Egyptians’, Greeks’, Romans’ and Incans’ more sophisticated mining processes and uses of mined materials. From the Industrial Age and the ability of mass production, societies’ progress has led to our Modern times’ demand for bigger, faster, and stronger products. The future is limitless as humans reach into the expanse of the Universe! What would our lives be like without mining?  Imagine a world without transportation such as jet planes or railroads, without communications such as cell phones or radar, without decorative items such as art or jewelry, without buildings such as skyscrapers or parking garages, without defense systems items such as missiles or submarines, without medical care items such as X-rays or surgical tools. We wouldn’t have any of these things without mining and mine...