break even stripping ratio example for coal mining

Break Even Stripping Ratio Example For Coal Mining

break even striping ratio - crusher equipment. break even stripping ratio example for coal mining CachedMining definition of Mining in the Free Online Encyclopedia.

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Break-even stripping ratio | Britannica

2 天前 · In coal mining: Contour strip mining. If the break-even stripping ratio remains favourable, further cuts into the hillside will be made. Otherwise, if there are sufficient reserves under the knob of the hill, the coal may be recovered by underground mining or by augering.

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Lecture 4 Calculating Stripping Ratios for Area Strip ...

2013-9-18 · Some mining costs are fixed (many administrative features for example) Others are variable direct materials handling cost What goes into Break Even Stripping Ratio Direct materials costs go into Break Even Fixed Costs are charged to the average stripping ratio you mine over the time Simple Stripping

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Stripping Ratios: What are They and Why

2018-10-31 · A strip ratio, or stripping ratio, is an important measurement related to the open-pit mining process. It represents the amount of waste material, also known as overburden, that must be moved in ...

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Determining Stripping Ratio - Basic Mining Techniques

2020-12-7 · The maximum allowable Stripping Ratio (SR max) defines break even stripping ratio (BESR).This represents the highest possible units of waste that can be handled. If the SR exceeds the BESR then the operation will be uneconomical as the income generated by the ore is insufficient to offset the costs incurred in mining.

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What Is a Stripping Ratio? (with picture)

2021-2-21 · Esther Ejim Date: February 21, 2021 The stripping ratio is commonly used in the ore and coal mining processes.. Stripping 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.

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How to calculate stripping ratio? -

For instance: If the thickness waste rock (overburden) is 100m and the thickness of coal is 50m then stripping ratio would be 2:1. That means one m3 (cubic meter) of coal would need mining two m3 ...

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(PDF) Stripping Ratios, Pit Limits & Cutoff Grade ...

Break-even stripping ratio Overall stripping ratioThe overall stripping ratio (OSR) for the last section is calculated as:This is compared to the instantaneous stripping ratio at the pit boundary:ISR (pit limit) = 1.9The OSR must always be less than the ISR (pit limit).8 . 0 62 50 B A Area Ore Area Waste OSR 3 3 1 = = = = u u Overall stripping ...

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Whats the average stripping ratio of open

Even if there was an average of ALL open pit mines that would not offer any knowledge regarding open pit mining. The stripping ratio in a mine is chosen based on economics. A high grade orebody ...

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chap 4.2.docx - 4.1.7 CUT-OFF STRIPPING RATIO OR

4.1.7 CUT-OFF STRIPPING RATIO OR BREAK-EVEN STRIPPING RATIO The stripping ratio at which the cost of mining the ore and waste is equal to the revenue from that ore. The cut-off stripping ratio is the same as the break-even stripping ratio. This is the stripping ratio at which the net value of the last increment of ore is just sufficient to pay for the cost of removing the waste to release the ore.

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Break Even Stripping Ratio Example For Coal Mining

break even striping ratio - crusher equipment. break even stripping ratio example for coal mining CachedMining definition of Mining in the Free Online Encyclopedia.

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Stripping ratio and break even stripping ratio - Docsity

The Break Even stripping ratio is that S.R at which the costs of mining the ore (coal) and waste (w1+w2) are same as the revenue for that block of ore/coal. B.E.S.R refers only to the last increment mined along the pit wall. It is calculated for the point at which break even occurs and the necessary stripping is paid for by the net value of the ...

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1 4 Stripping Ratio | Surface Mining | Mining

2020-9-26 · Break even stripping ratio (BESR) In case of coal deposits, In case of other deposits, BESR helps in determining the pit limit. Example: Selling cost of coal per te : Rs 2500/Mining and preparation cost per te: Rs 500/Overburden Handling cost per cubic meter: Rs 100/- Calculate the BESR. Limiting stripping ratio (LSR) In case of Coal deposits,

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strip ratio mining - Auto Gyro Africa

Break-even stripping ratio | Britannica In coal mining: Contour strip mining. If the break-even stripping ratio remains favourable, further cuts into the hillside will be made. Otherwise, if there are sufficient reserves under the knob of the hill, the coal may be recovered by underground mining or

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3.2.6: Maximum Allowable Stripping Ratio (SRmax) |

3.2.6: Maximum Allowable Stripping Ratio (SRmax) Earlier in this lesson, we looked at the maximum stripping ratio, and we did it for coal seam. You will recall that the maximum allowable stripping ratio, SR max , also called break-even stripping ratio , is the maximum amount of overburden/waste that can be extracted per unit of ore at the ...

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Break Even Analysis - How to Calculate the Cut Off

For conducting a mining project’s break even analysis, you first need to know about the operational expenses (OPEX).When the OPEX is known, you can calculate the mineral’s cut off grade, which is the break even grade, below which it is not economically viable to mine the ore.To find out how I come up with the cost price per tonne (OPEX) if a feasibility study isn’t available, I refer you ...

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Stripping_Ratios__Pit_Limits ...

View Stripping_Ratios__Pit_Limits_a3d855f12fb720e78bc02a3ba3cd61d7.pdf from MINE 312 at University of Liberia - Monrovia. The stripping ratio (SR) refers to the ...

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(PDF) Development of Underground Coal Mine from

However, the conditions of their surface mines are worsening each year: The stripping ratio is approaching to the value of break even stripping ratio, the regulations of environmental protection ...

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Modeling for the Steady State Production of Large Open ...

2013-12-17 · 1.3 BREAKEVEN STRIPPING RATIO The point beyond which the mineral/ coal cannot be economically extracted out is called the break even stripping ratio. Factors which play a great role in the stripping ratio calculation are: - Cost of stripping - Extracting cost of mineral/coal - Percentage of rejects - Cleaning cost of coal or ore dressing cost

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In case of simultaneous back filling thickness ratio

In case of simultaneous back filling thickness ratio helps in knowing whether the backfilled surface will be lower than, equal to or above the pre-mined land surface level. Break even stripping ratio (BESR) In case of coal deposits, In case of other deposits, BESR helps in determining the pit limit. Example: Selling cost of coal per te : Rs 2500/- Mining and preparation cost per te: Rs 500 ...

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Stripping ratio and break even stripping ratio - Docsity

The Break Even stripping ratio is that S.R at which the costs of mining the ore (coal) and waste (w1+w2) are same as the revenue for that block of ore/coal. B.E.S.R refers only to the last increment mined along the pit wall. It is calculated for the point at which break even occurs and the necessary stripping is paid for by the net value of the ...

Read More+

1 4 Stripping Ratio | Surface Mining | Mining

2020-9-26 · Break even stripping ratio (BESR) In case of coal deposits, In case of other deposits, BESR helps in determining the pit limit. Example: Selling cost of coal per te : Rs 2500/Mining and preparation cost per te: Rs 500/Overburden Handling cost per cubic meter: Rs 100/- Calculate the BESR. Limiting stripping ratio (LSR) In case of Coal deposits,

Read More+

strip ratio mining - Auto Gyro Africa

Break-even stripping ratio | Britannica In coal mining: Contour strip mining. If the break-even stripping ratio remains favourable, further cuts into the hillside will be made. Otherwise, if there are sufficient reserves under the knob of the hill, the coal may be recovered by underground mining or

Read More+

Ratio For Concrete From Crusher Dust - Bryan D.

Hammer Crusher Crushing Ratio Limestone Microns; Break Even Stripping Ratio Example For Coal Mining; Copper Ore High Crushing Ratio Crusher; Perhitungan Ratio Reduction Pada Jaw Crusher; Ratio Of Cement Sand Granite Mix In 1 2 4; Reduction Ratio Of Double Roll Crushers; Ratio For Concrete From Crusher Dust

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Lecture 4 Calculating Stripping Ratios for Area Strip ...

2013-9-18 · Lecture 4 Calculating Stripping Ratios for Area Strip Mines - Free download as Powerpoint Presentation (.ppt), PDF File (.pdf), Text File (.txt) or view presentation slides online. bREAK EVEN STRIPPING RATIO

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Break Even Analysis - How to Calculate the Cut Off

For conducting a mining project’s break even analysis, you first need to know about the operational expenses (OPEX).When the OPEX is known, you can calculate the mineral’s cut off grade, which is the break even grade, below which it is not economically viable to mine the ore.To find out how I come up with the cost price per tonne (OPEX) if a feasibility study isn’t available, I refer you ...

Read More+

Stripping_Ratios__Pit_Limits ...

View Stripping_Ratios__Pit_Limits_a3d855f12fb720e78bc02a3ba3cd61d7.pdf from MINE 312 at University of Liberia - Monrovia. The stripping ratio (SR) refers to the ...

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1,Introduction Coal Mining | Fossil Fuels | Coal | Free

2016-5-16 · Break even stripping Ratio or Cut-off stripping ratio. The Cut-off stripping ratio is that S.R at which the costs of mining the ore and waste are matched by the revenue for that block of ore. Refers only to the last increment mined along the pit wall. It is calculated for the point at which break even occurs and the necessary stripping is paid ...

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Modeling for the Steady State Production of Large Open ...

2013-12-17 · 1.3 BREAKEVEN STRIPPING RATIO The point beyond which the mineral/ coal cannot be economically extracted out is called the break even stripping ratio. Factors which play a great role in the stripping ratio calculation are: - Cost of stripping - Extracting cost of mineral/coal - Percentage of rejects - Cleaning cost of coal or ore dressing cost

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Productivity in mining operations: Reversing the

Our productivity measure is composed of four elements: physical mining output, employment at the mine site, the value of assets at the site, and nonlabor costs. Physical mining output is measured as total material moved, so that the MPI performance is not affected by changes in ore grade, stripping ratio, or the price of the commodity.

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