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Coal Geology Flashcards

Start studying Coal Geology Learn vocabulary terms and more with flashcards games and other study tools Search What is the stripping ratio? Why is it important? Strip mining capturing the gas while mining the coal can migrate into aquifers and contaminate wells Get price

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What is STRIPPING RATIO? What does STRIPPING RATIO mean

Aug 24 2017In mining stripping ratio or strip ratio refers to the ratio of the volume of overburden (or waste material) required to be handled in order to extract some tonnage of ore Get price

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What Is a Stripping Ratio? (with picture)

Aug 08 2019Stripping ratio is a term that is derived from the mining industry and is used in reference to the open-pit mining process The stripping ratio method of calculating the profitability of the mining procedure is commonly used in the ore or coal mining process Get price

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Whats the average stripping ratio of open pit mines around

The stripping ratio in a mine is chosen based on economics A high grade orebody can support a high stripping ratio A low grade ore body cannot support a high stripping ratio Get price

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Optimal Design of Mining Panels for Truck Shovel

Panel dimensions and their relative orientations affect in-pit waste haulage distance stripping ratio production efficiency and facility layout Generally for the same production rate of coal reduction of panel width will reduce in-pit waste haulage distance Get price

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What Is Coal Mining

Slope mine – For a shallow underground coal seam miners dig a slanted or 'sloped' shaft and remove the coal via long convey orbelts Surface mine – In a surface mine (or strip mine) miners remove a horizontal layer of soil and rock called the overburdento expose a coal seam Top 5 Get price

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effect of stripping ratio in coal mining

Aug 31 2012effect of stripping ratio in coal mining As a leading global manufacturer of crushing and milling equipment we offer advanced rational solutions for any size-reduction requirements including quarry aggregate grinding production and complete plant We also supply individual crushers and mills as well as spare parts of them Get price

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SURFACE MINING METHODS

2 2 Strip Mining Strip mining is ideally applied where the surface of the ground and the ore body itself are relatively horizontal and not too deep under the surface and a wide area is available to be mined in a series of strips Typical examples of this type of mining are the larger tonnage coal mining operations in Get price

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strip ratio in coal mining

stripping ratio in coal mining Stripping ratio the free encyclopedia In mining stripping ratio or strip ratio refers to the ratio of the volume of overburden (or waste material) required to be handled in order to extract some volume of Get price

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Open

Open-pit mining methods are applicable to mining ore deposits that apex at or near the surface If the deposit apexes below the surface the overburden and barren capping overlying the ore must be removed in advance of open-pit mining The removal of this material is known as stripping Get price

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what is stripping ratio coal mining

what is stripping ratio coal mining Stripping ratio the free encyclopedia In mining stripping ratio or strip ratio refers to the ratio of the volume of overburden (or waste material) required to be handled in order to extract some volume of Get price

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What is Strip Mining? (with pictures)

Jul 12 2019This type of mining is only effective in areas where mineral deposits are very close to the surface making it feasible to quickly and easily remove the overburden to get to them Classically strip mining is used to mine tar sand and coal This technique is also referred to as open cast open cut or stripping Get price

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chidliak: Strip Ratio

Strip itself is easily understood in coal mining where you may have 20 metres of overburden before you expose a 2 metre coal seam In this case it is a simple to just divide the length of the overburden by the length of the coal seam (20/2 = 10:1 strip ratio) That is coal mining or strip mining at its core Get price

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Overburden Removal

Jul 21 2017However in hard rock mining to define the stripping ratio in the example of Fig 1 consider mining of the ore ABC at depth h Having defined the slope angle at this mine section the waste (overburden) section AICD must be re- moved The ratio of this overburden stripped to mine the ore is known as the average stripping ratio (SR) Get price

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Stripping ratio

In mining stripping ratio or strip ratio refers to the ratio of the volume of overburden (or waste material) required to be handled in order to extract some tonnage of ore For example a 3:1 stripping ratio means that mining one tonne of ore will require mining three tonnes of waste rock Get price

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Mining Terms

Important Terms of Surface Mining Mining Terms Types of Mining Types of Mining Stripping Ratio: is the ratio of a unit of waste material removed per similar unit of ore material removed Entry: A horizontal opening in a bedded mineral deposit (ex coal) Face: Get price

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Surface Coal Mining Methods in Australia

Surface Coal Mining Methods in Australia 13 The draglines operate in the lower portion of the seams where the interburden are the greatest and the pre-strip shovels and excavators are used on the upper portion of the deposit where the interburden average is around 15-20m Get price

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What is the Amount of waste for coal mining

Coal mining can do alot to the enviroment Coal mining can pollute the air and destroy habitats like forests and wetlands Coal mining can do alot to the enviroment Get price

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Opencast Mining

Opencast mining is the most common method used throughout the world for extracting minerals (Ha et al 2011) and commonly produces much waste due to the removal of large volumes of materials (Anawar et al 2013 Bini 2012) From: Assessment Restoration and Reclamation of Mining Influenced Soils 2017 Related terms: Coal Mine Coal ProductionGet price

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Stripping ratio

With the stripping ratio at Wolverine reaching a high water mark of 19 in the second quarter against the life-of-mine ratio of 10 I am confident that we will get through the waste rock to lower the stripping ratio get at the coal that is there and lower our costs in the second half of this fiscal year Get price

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break even stripping ratio example for coal mining

coal mining stripping ratio - govtvacancyin break even stripping ratio example for coal mining contribution margin ratio These are then used to calculate the break-even point for sales The calculation procedure and the formulas are discussed via following example: Examp Chat Online stripping ratio in coal mining - essentialgapcozaGet price

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Industrial History: Mining Draglines and Shovels

The shovel began moving 115 yd bites at Peabody Coal's Sinclair Mine in late 1962 and was the largest in the world at the time The Mine was located east of Drakesboro KY Get price

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stripping ratio iron ore

Apr 27 2013stripping ratio iron ore Posted at:April 27 2013[ 4 7 - 3300 Ratings] For example a 3:1 stripping ratio means that mining one cubic meter of ore will Get price

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what is stripping ratio coal mining

stripping ratio coal mining p indiciain strip ratio in coal miningMine Equipments Stripping ratioWikipedia the free encyclopedia In mining stripping ratio or strip ratio refers to the ratio of the volume of overburden (or waste material Get price

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(PPT) Calculating Stripping Ratios for Area Strip Mines

The Coal Area Strip Mine Formula • Strip Ratio = OB Thickness (in ft) * 11 11/ Coal thickness in inches – Assumes coal is 80 lbs/ft^3 (good for bituminous) – Area Strip Mine Geometry – Geologic Stripping Ratio – no accounting for rehandle or less than coal recovery Your Turn • Use What You Have Learned About Calculating Stripping Ratios for Strip Mines and Break Even Limits to Determine the Size of a Get price

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Negative Effects of Coal Mining

We know it but coal is such a cheap energy source that we don't want to let go of it The negative effects of coal mining cannot be disputed: Destruction of Landscapes and Habitats: Strip mining also known as surface mining involves the stripping away of earth and rocks to reach the coal underneath If a mountain happens to be standing in Get price

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Dragline Digging Methods in Australian Strip Mines

overburden most Australian strip mines have wider pits typically 60-80m versus 40-50m pit width overseas to reduce overall rehandle dragline walking time and avoid both spoil and highwall failures A study was conducted to highlight the current status of the use of dragline in Australian coal mining Get price

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OSR

What does OSR stand for? OSR stands for Overall Stripping Ratio (mining) Suggest new definition This definition appears somewhat frequently and is found in the following Acronym Finder categories: Science medicine engineering etc Business finance etc Get price

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stripping ratio in coal mining

what is stripping ratio coal mining - Mine Equipments Stripping ratio the free encyclopedia In mining stripping ratio or strip ratio refers to the ratio of the volume of overburden (or waste material) required to be handled in order to extract some volume of Get price

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Effect Of Stripping Ratio In Coal Mining

In mining stripping ratio or strip ratio refers to the ratio of the volume of overburden (or waste material) required to be handled in order to extract some volume effect of stripping ratio in coal mining | Solution for ore mining Get Price what is stripping ratio coal mining – Grinding Mill ChinaGet price

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Coal Mining Stripping Ratio

Stripping ratio coal mining comp Customized services Stripping ratio coal mining comp The volume of waste rock above and between coal seams in an openpit mine is The clean coal stripping ratio is more indiive Calculating Stripping Ratios for Area Strip Mines Get price

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IFRS First Impressions

stripping costs A recent KPMG survey revealed that many companies capitalise costs often using an average life-of-mine stripping ratio approach while others expense such costs as incurred or follow the US GAAP approach of allocating all production stripping costs to inventory produced in the period Get price

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ESTIMATION OF CAPITAL COSTS FOR ESTABLISHING COAL

ESTIMATION OF CAPITAL COSTS FOR ESTABLISHING COAL MINES IN SOUTH AFRICA Moshe Mohutsiwa A research report submitted to the Faculty of Engineering and the Built Environment University of the Witwatersrand in partial fulfilment of the mining (stripping deeper hard overburden) methods and associatedGet price

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