stripping ratio in coal mining

what is stripping ratio coal mining - Mine Equipments

Stripping ratio - Wikipedia, the free encyclopedia In mining, stripping ratio or strip ratio refers to the ratio of the volume of overburden (or waste material) required …

Accounting for waste - EY

of-mine average strip ratio approach used by many entities today, the key difference is the level at which the expected level of activity should initially be determined.

Cline Mining Corporation • Projects • Mining Terms

Strip Ratio The stripping ratio is the most influential economic factor in the evaluation and planning of open-pit coal mines. It represents the volume of rock both above and within (partings) coal seams expressed in Bank Cubic Metres (BCMs) which must be mined to obtain 1 tonne of raw or clean coal.

Surface Strip Coal Mining Handbook - sacea.org.za

surface strip coal mining, either from a production, project or planning perspective. A ... 1.3 PRODUCTION COST AND STRIPPING RATIO ANALYSIS 8 1.3.1 Stripping Ratio for Multiple Seams 11 1.4 BASIC PROFIT FUNCTION ANALYSIS 13 2 GEOLOGY AND EXPLORATION

Pertambangan Permukaan - Stripping Ratio (SR) - Isya ...

Pertambangan Permukaan - Stripping Ratio (s) Jenis dan definisi; Apa ukuran SR? Apa yang harus di gunakan untuk SR? Pada TerminologyTerminology : Definition Coal …

Stripping Ratios, Pit Limits & Cutoff Grade Optimization ...

In strip coal mining operations, the following are sometimes seen: Overbuden Thickness (ft) Overburden (yd 3 ) SR = SR = Coal Thickness (ft) Coal (tons) Stripping Ratios Instantaneous stripping ratio: The stripping ratio for a given push back Overall stripping ratio: The stripping ratio for the total amount of material removed.

Coal mining - Wikipedia

Coal mining is the process of extracting coal from the ground. Coal is valued for its energy content, and, since the 1880s, has been widely used to generate electricity. Steel and cement industries use coal as a fuel for extraction of iron from iron ore and for cement production. In the United Kingdom and South Africa, a coal mine and its structures are a colliery, a coal mine a pit, and the ...

stripping ratio in coal mining - minemining.com

Stripping ratio - Wikipedia, the free encyclopedia In mining, stripping ratio or strip ratio refers to the ratio of the volume of overburden (or waste material) required …

CHAPTER 11 Mining Technology - Princeton University

CHAPTER 11 Mining Technology The Federal Coal Leasing Amendments Act ... States, the recovery ratio is63 percent. Sur- face mines, on the other hand, typically re-cover from70 to 90 percent of the minable resource. ... mining of the preceding strip of coal. Mining Federal

coal mining stripping ratio – Grinding Mill China

mining strip ratio sharesguru australian shares forum, the strip ratio is the number of cubic metres of dirt and rock you need to remove to obtain a every tonne of ore (usually coal …

stripping ratio coal mining p - vrwa.in

economic(al) stripping ratio [The ratio of overburden to ore or coal in the open-cast method of mining] Mineral/Abraum-Verhältnis n, Abraum/Mineral-Verhältnis Read More strip ratio in coal mining. what is stripping ratio coal mining crusher. what is stripping ratio coal mining what is stripping ratio coal mining What is the ...

what is stripping ratio coal mining ppt - Cutting Head

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 order to extract a given amount of ore.

Stripping ratio - Wikipedia

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.

Break-even stripping ratio | Britannica.com

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.

stripping ratio in coal mining - crusherasia.com

coal mining stripping ratio, stripping ratio encyclopedia. moolarben coal mine yancoal. the low life of mine strip ratio of 3.3 and modern 13.5mtpa capacity … What is the Difference between Strip mining …

What Is a Stripping Ratio? (with picture) - wisegeek.com

Sep 27, 2018· 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.

coal mining stripping ratio - restaurantsaveurs.be

stripping ratio in coal mining, The break-even stripping ratio is a, stripping ratio varies with the quality of the coal/ore making up the deposit for example, . read More .

Stripping ratio | mining | Britannica.com

In coal mining: Choosing a mining method …calculated with the aid of stripping ratios, which represent the amount of waste material that must be removed to extract a given amount of coal.

Strip Mining for Coal - YouTube

Sep 11, 2015· Almost 20 years since the strip mine began and it is still going strong here in Stellarton, Nova Scotia. In another five or six years time the mining should be complete and will mark the end of ...

strip ratio in coal mining - Mine Equipments

Stripping ratio - Wikipedia, the free encyclopedia In mining, stripping ratio or strip ratio refers to the ratio of the volume of overburden (or waste material) required …

Stripping Ratio Calculation In Mining

The stripping ratio method of calculating the profitability of the mining procedure is commonly used in the ore or coal mining process. Stripping ratio coal mining comp – Customized services … Stripping ratio coal mining comp. ...

Rational economic stripping ratios - Taylor & Francis

Rational economic stripping ratios Paul B.Appiah Coal Corporation of New Zealand, New Zealand JohnR.Sturgul University of Idaho, Idaho, USA ABSTRACT: The economic stripping ratio t useo definde an economic mining bloc ikn an open pit coal mining situatio isn

Analysis of Highwall Mining Stability - The Effect of ...

feet to 1,200-feet of additional recovery when the economic stripping ratio is reached in contour mining or in slot mining when surface access to a reserve is limited.

Stripping Ratios: What are They and Why are They Important?

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 ...

Availability of Coal Resources for Mining in Illinois

12 Stripping ratio of the Herrin Coal, Shawneetown Quadrangle 18 13 Availability of the Herrin Coal for surface mining, Shawneetown Quadrangle 20 14 Thickness of the Springfield Coal…

Mining 101 | West ia Coal Association

The typical method of assessing surface mining economics for a coal seam is a calculation of overburden (native rock and soil above a coal seam) moved per clean ton of coal produced, commonly referred to as "mining ratio".

IFRS First Impressions - KPMG

average life-of-mine stripping ratio approach, while others expense such costs as incurred, or follow the ... the asset based on an average stripping ratio. The interpretation specifies the costs that may be ... for example coal.

Determining Stripping Ratio _ Basic Mining Techniques ...

Leyte viewed "CLASSICAL Ads by Google Mineral Mining Mining Coal Mining Plant METHODS OF ORE RESERVE ESTIMATION ~ Basic A visitor Mining fromTechniques" United States2 hrs 18 mins"Determining viewed ago Stripping Related Posts: Ratio ~ Basic Mining

Energy resources: Coal: 2.5 Surface mining - OpenLearn ...

This stripping ratio is higher than the 20:1 limit, so surface mining of the coal seam to this depth would not be economic. Clearly, at greater depths, proportionately more overburden has to be removed per volume of coal, and this steadily increases the stripping ratio.

Agoldenmomentfor mining - PwC

IFRSnews Emergingissuesandpracticalguidance* Agoldenmomentfor mining Alfredo Ramirez of Accounting Consulting Services central team Mining ...