In coal mining what is a good strip ratio - answers.com

* Consider Capital Quarries, Rolla, at 25 m depth, SR = 0.5 b. To surface mine we need to remove some waste in addition to ore / coal c. SR measures how much waste needs to be removed so that a ...

mining engineering: STRIPPING RATIO (S)

Jun 06, 2010· * Thus in coal SR is the number of BCM of waste that needs to be removed to uncover 1 t of coal * Some applies in other bedded deposits. b. Ore miners measure both waste and ore in tons or tonnes. ... Switch to underground mining if your stripping ratio is more than BESR. a. May or may not be economically feasible * Consider value of ...

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". The higher the mining ratio (or more overburden moved per clean coal ton), the higher the cost of producing coal. In ...

Availability of Coal Resources for Mining in Illinois

9 Availability of coal resources in the Shawneetown Quadrangle 15 10 Thickness of the Herrin Coal, Shawneetown Quadrangle 16 11 Depth of the Herrin Coal, Shawneetown Quadrangle 17 12 Stripping ratio of the Herrin Coal, Shawneetown Quadrangle 18 13 Availability of the Herrin Coal for surface mining, Shawneetown Quadrangle 20

CHAPTER 11 Mining Technology - Princeton University

tion rate of the mine. After the coal has been mined from the bottom of the box cut, the overburden covering the next strip of coal is removed and placed in the void left by the mining of the preceding strip of coal. Mining Federal mines, and

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 ...

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 …

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 …

iron ore mining stripping ratio - acherishedbirth.com

Apr 28, 2018· Nickel Ore, South Africa Nickel Ore Suppliers Directory on iron ore mining stripping ratio Fresh Fruits and Vegetables,Rare Earth Mineral,Ferro Alloys,Food Products,Nut and Seeds Supplying Chromium Nickel Iron sheet/plate /strip inconel 625.

coal mining stripping ratio - Newest Crusher, Grinding ...

australia coal mining stripping ratio Information & Research . Bringing you the latest news, research, information and search results on australia coal mining stripping ratio & the global mining industry

what are the factor affecting striping ratio

Chapter 3. Mining Extraction - zenithia Center for Coal & Energy ... and recommendations for addressing these factors. 2. ... important development affecting the coal mining .... affecting the break-even stripping ratio nega- tively.

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.

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 …

Stripping Ratio Calculation In Mining - cz-eu.eu

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 to be handled in order to extract some volume of . Get Price And Support Online; stripping ratio in coal mining - crusherasia

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Nov 22, 2016· Mining Engineering and Basic Knowledeg. Navratri 2018 Special!!!!Jai Maa Vaishnodevi I Hindi Movie Songs I Full HD Video Songs Juke Box - Duration: 1:00:19. …

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 ...

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.

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.

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Calculating Stripping Ratios for Area Strip Mines | Fayçal ...

Calculating Stripping Ratios for Area Strip Mines Mnge 315 ©Dr. B. C. Paul spring 2003 revised 2010 Note – These notes contain information considered common knowledge to those familiar with Strip Mining. Books such as "Elements of Practical Coal Mining" and SME's "Surface Mining" were ...

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 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. ...

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.

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 …

effect of stripping ratio in ore mining

Jul 25, 2018· Strip mining handbook Natural Resources Law Center/Red Lodge Clearinghouse. . ratio between the overburden and the coal seam, called the stripping ratio, both mineral and organic, that has been moved from its place of origin by air,.

influence of striping ratio on open cast gold mining

Economic Stripping Ratio of the Open Pit Coal Mining under the . The calculating method of economic stripping ratio for open-pit coal mien is present that the economic stripping ratio of mine A without influence from the frigid China National Gold Group Corporation Inner Mongolia Minerals Co.,Ltd.

1 4 Stripping Ratio | Ratio | Surface Mining - Scribd

1.4 Stripping Ratio Stripping ratio is defined as the ratio of the Overburden/Cover Rock / Waste Rock to the ore body. The various stripping ratios that are used in surface mining are the following: 1.

Rational economic stripping ratios - Taylor & Francis

stripping and extraction and the effect of variations s in run-of-mine recovery and mining cost per to ton change dues in the number, thicknesses and depth of seams s withi an mining block. Appropriately, the determinatio onf an economic stripping ratio for a coal reserve …

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