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overburden in opencast mines

Accounting for Overburden Removal (OBR) in Opencast Coal Mines. ACCOUNTING 70 THE CHARTERED ACCOUNTANT AUGUST 2010 shown as rectangular. However, the actual layout of an opencast mine, the nature of coal seam and the volume of.

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A REVIEW ON EXISTING OPENCAST COAL MINING

Overburden removal plays a key part in surface mines, accounting for up to half the total cost involved in coal exposure, extraction, washing and transportation [4].

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Ministry of Coal, GOI

The removal of this overburden is known as “Over burden Removal” (OBR) and involves heavy cost. OBR is an important performance parameter as it exposes the coal seam for future production at short notice. Stripping activity – It is the activity of overburden removal that benefits the identified component of an ore to be mined by the entity.

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NCL's Highest ever Overburden Removal - PSU Connect

Singrauli: Northern Coalfields Limited's New Year New Record, the highest ever Overburden Removal (OBR) by NCL on December 31, 2020. It removed 12,54,000 Cubic Meter of OB. OB Removal implies removing topsoil in opencast mines to expose the coal seams and make them ready for coal extraction.

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कोयला मंत्रालय, भारत सरकार

OBR (Overburden removal) In mining, overburden (also called waste or spoil) is the material that lies above an area that lends itself to economical exploitation, such as the rock, soil, and ecosystem that lies above a coal seam or ore body.

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Prospects for coal and clean coal technologies in Vietnam

2019-12-11  bcm billion cubic metres (of natural gas) or bank cubic metres (of overburden removal for opencast coal mining) boe barrel of oil equivalent BFG blast furnace gas billion thousand million, 109 Btu/kWh British thermal units per kilowatt hour BWE bucket wheel Crusher °C degrees Celsius (multiply by 1.8 and add 32 to convert to Fahrenheit)

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Coal India may miss output target - The Hindu BusinessLine

2019-6-6  Overburden removal, which refers to the removal of topsoil to expose the coal seams and extract minerals, is an important process, particularly in coal mining in India, which is essentially opencast.

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Central Coalfields

2017-7-5  Coal stock in all mines of Coal India was deemed essential and accordingly a Committee was appointed for reviewing the existing practice and procedures tor firm measurement of OBR and coal stock as per earlier recommendations of Balram Committee. Coal India Board in

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Ministry of Coal, GOI

Coal/Lignite PSUs have been making constant and sincere efforts to minimize the footprints of coal mining through sustained reclamation and afforestation of areas in and around its operating mines.The reclamation activities are being carried out in various mines as per well-designed and approved mine closure plans, which carrydetailed ...

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(PDF) A review on utilisation of coal mine overburden

Gupta [3] reviewed the application of coal mine overburden (OB) dump material for backfilling in underground mine voids created due to coal mining in deep seams/horizons. Gibert [4] assessed the ...

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CAS 23 Overburden Removal Cost - icmai

2020-7-28  •OBR Cost – it is the cost of removing overburden (overlying material)for extraction of coal •Standard stripping ratio - the ratio of “overbudern (OB)to be removed” to “the mineral to be produced” during the whole project life. Suppose in an opencast mine, 20 lakh CuM OB will be removed during the life

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CHAPTER III COMPLIANCE AUDIT OBSERVATIONS

2020-8-16  coal production comes from OC mines. Fifteen opencast mines were in operation as on 01 April 2014. In opencast mining, Overburden (OB) is the soil which lies above the coal bands and has to be removed and dumped in the earmarked place. Overburden Removal (OBR) is one of the most important activities without which coal cannot be exposed and ...

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कोयला मंत्रालय, भारत सरकार

OBR (Overburden removal) In mining, overburden (also called waste or spoil) is the material that lies above an area that lends itself to economical exploitation, such as the rock, soil, and ecosystem that lies above a coal seam or ore body.

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IN THE INCOME TAX APPELLATE TRIBUNAL RAIPUR

2018-3-25  below the surface level. Such large opencast mines can cover an area of many square kilometres, as indeed in the case of this assessee. 18. What is very crucial, however, is to appreciate the fact that overburden removal process is not a onetime process in one coal mining site because

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Equipments Of Opencast Coal Mining Methods

2021-3-29  A Review On Existing Opencast Coal Mining Methods Within. Aug 24 2010 abstract currently almost 65 of the coal in australia is being produced by opencast mining methods mining equipments such as draglines dredgers or bucket wheel Crushers trucks and shovels and dozers are the main equipments employed for overburden removal and coal extraction the choice of equipment for a particular mine ...

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introduction about overburden removal in coal mining in

2016-10-20  - Introduction Coal mining in the United States is a major industry. In 2012, the coal mining industry employed nearly 90,000 people . The two types of surface mining are strip mining and mountaintop removal. In strip mining, the overburden, several layers of dirt and/or rock are removed to reach the ore, mostly coal that is to be mined . Get Price

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Prospects for coal and clean coal technologies in Vietnam

2019-12-11  bcm billion cubic metres (of natural gas) or bank cubic metres (of overburden removal for opencast coal mining) boe barrel of oil equivalent BFG blast furnace gas billion thousand million, 109 Btu/kWh British thermal units per kilowatt hour BWE bucket wheel Crusher °C degrees Celsius (multiply by 1.8 and add 32 to convert to Fahrenheit)

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(PDF) A review on utilisation of coal mine overburden

Gupta [3] reviewed the application of coal mine overburden (OB) dump material for backfilling in underground mine voids created due to coal mining in deep seams/horizons. Gibert [4] assessed the ...

Get Price

Cil Logs 17% Jump In Composite Opencast Production In

2020-8-3  This is sum total of OBR and the amount of coal produced through opencast mines. "For CIL which relies on opencast mines for 95 per cent of its entire annual coal output, OBR is a crucial performance indicator which exposes the coal seam for future production at short notice," said a senior executive of the company.

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NCL Coal Production in FY21: NCL at the pinnacle of 35 ...

2021-4-5  In the same line, the company has also surpassed its Annual Overburden Removal (OBR) targets of 370 Million Cubic Meter, and removed a whopping 374.17 Million Cubic metres of Overburden with a y-o-y growth of 15.76% in this fiscal. Overburden is material above the coal seam, required to be removed above coal layer for ready exposure.

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CHAPTER III COMPLIANCE AUDIT OBSERVATIONS

2020-8-16  coal production comes from OC mines. Fifteen opencast mines were in operation as on 01 April 2014. In opencast mining, Overburden (OB) is the soil which lies above the coal bands and has to be removed and dumped in the earmarked place. Overburden Removal (OBR) is one of the most important activities without which coal cannot be exposed and ...

Get Price

IN THE INCOME TAX APPELLATE TRIBUNAL RAIPUR

2018-3-25  below the surface level. Such large opencast mines can cover an area of many square kilometres, as indeed in the case of this assessee. 18. What is very crucial, however, is to appreciate the fact that overburden removal process is not a onetime process in one coal mining site because

Get Price

(PDF) A review on utilisation of coal mine overburden

Gupta [3] reviewed the application of coal mine overburden (OB) dump material for backfilling in underground mine voids created due to coal mining in deep seams/horizons. Gibert [4] assessed the ...

Get Price

Central Coalfields

2017-7-5  Coal stock in all mines of Coal India was deemed essential and accordingly a Committee was appointed for reviewing the existing practice and procedures tor firm measurement of OBR and coal stock as per earlier recommendations of Balram Committee. Coal India Board in

Get Price

MADANPUR SOUTH COAL MINE - forestsclearance.nic

2019-1-3  operated by mechanized opencast method deploying deep hole drilling blasting and shovel dumper combination for overburden removal and surface miner for coal extraction. Proposed annual rated production capacity of opencast mines is 5.4 Mt. The block boundary co-ordinates of Madanpur South Coal Mine is given in table 1.

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Slope stability of deep surface coal mines in the presence ...

2021-6-11  Coal and lignite mining are geo-resources that have significantly contributed to the global energy needs during several decades, accounting for 25% of the global energy production in 2000, 30% in 2010 and 27% in 2019 (BP 2020).When the coal deposits are located relatively near the surface, their cost-efficient extraction is usually achieved by surface (also called open-pit or opencast) mining ...

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Study of efficiency and productivity growth in opencast ...

2002-9-1  The comparatively low productivity growth of opencast mining as found in the present analysis can be explained by the observation made by the Committee of Public Undertakings that there has been indiscriminate hiring of heavy earth moving machineries (HEMM) for overburden removal apart from extraction of coal, without thorough investigation of ...

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Coal India closes ₹2,900 crore deal for procurement of 96 ...

Coal India closes. ₹. 2,900 crore deal for procurement of 96 dumpers. For CIL, whose 95% of the entire coal output is through opencast mines, dumpers of such high capacity are pivotal in ...

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Equipments Of Opencast Coal Mining Methods

2021-3-29  A Review On Existing Opencast Coal Mining Methods Within. Aug 24 2010 abstract currently almost 65 of the coal in australia is being produced by opencast mining methods mining equipments such as draglines dredgers or bucket wheel Crushers trucks and shovels and dozers are the main equipments employed for overburden removal and coal extraction the choice of equipment for a particular mine ...

Get Price

Cil Logs 17% Jump In Composite Opencast Production In

2020-8-3  This is sum total of OBR and the amount of coal produced through opencast mines. "For CIL which relies on opencast mines for 95 per cent of its entire annual coal output, OBR is a crucial performance indicator which exposes the coal seam for future production at short notice," said a senior executive of the company.

Get Price