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strip ratio in coal mining

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

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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 are typically reduced to show the volume of waste removal required to extract one unit ton of ore, for example, 1.5:1 as opposed to 3:2.

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Stripping ratio mining Britannica

Other articles where Stripping ratio is discussed: 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. Stripping ratios can also consider the selling price of coal, and a certain minimum profit can be added to the total cost of producing and

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How to calculate stripping ratio?

The common strip ratio for coal mining is BCM per ton of coal. Is this coal in situ or run of mine? Any answers? Can you help by adding an answer? Answer. Add your answer. Related Publications.

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Whats the average stripping ratio of open pit mines around

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.

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Can Indonesia's coal mines maximise strip ratios and boost

Dec 16, 2016· The declining trend in strip ratios for Indonesia's coal mines have allowed producers to survive in periods of lower coal prices through reduction in production costs and margins. However, producers are likely to have sterilised coal and jeopardised future coal reserves with continuous mining in lower strip areas.

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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 to be handled in order to extract some volume of

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What Is a Stripping Ratio? (with picture)

Mar 31, 2020· The stripping ratio method of calculating the profitability of the mining procedure is commonly used in the ore or coal mining process. In relation to its application in the mining of ore, the utility of the stripping ratio is the determination of the approximate ratio of waste material that must be moved in order to reach a certain ratio of ore.

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Coal mining Choosing a mining method Britannica

Coal mining Coal mining Choosing a mining method: The various methods of mining a coal seam can be classified under two headings, surface mining and underground mining. Surface and underground coal mining are broad activities that incorporate numerous variations in equipment and methods, and the choice of which method to use in extracting a coal seam

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Surface Coal Mining Methods in Australia InTech

Surface Coal Mining Methods in Australia 5 2. Open cut mining methods strip mining Large-scale open cut coal mining operations commenced in Australia in mid 1960s and since then there has been significan t developments in this method of mining. The mines are now operating at significantly higher annual tonnages, growing deeper, more complex and

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Coal mining Wikipedia

When coal seams are near the surface, it may be economical to extract the coal using open cut (also referred to as open cast, open pit, mountaintop removal or strip) mining methods. Opencast coal mining recovers a greater proportion of the coal deposit than underground methods, as more of the coal seams in the strata may be exploited. This

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Can Indonesia's coal mines maximise strip ratios and boost

Dec 16, 2016· The declining trend in strip ratios for Indonesia's coal mines have allowed producers to survive in periods of lower coal prices through reduction in production costs and margins. However, producers are likely to have sterilised coal and jeopardised future coal reserves with continuous mining in lower strip areas.

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In coal mining what is a good strip ratio Answers

In coal mining what is a good strip ratio? Unanswered Questions. Why does Patrick Wymark have scar on bottom lip. What is the hidden meaning of knee lights. PR 101 Introduction to Personnel Recovery.

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what is stripping ratio coal mining crusher

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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(PPT) Calculating Stripping Ratios for Area Strip Mines

Calculating Stripping Ratios for Area Strip Mines

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COAL Trollope Mining Services

HCI KHUSELA PALESA MINE Gauteng. The Palesa Coal Mine, located 37 km North of the town Bronkhorstspruit, is the largest of the two HCI Coal Mines. Operations will ultimately comprise of opencast mining of coal 380 000 T/MTH @ strip ratio of 2.3 M3/T. The opencast mining scope of work includes ongoing rehabilitation.

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Strip Mining an overview ScienceDirect Topics

Auger mining can be used for coal outcrops on a hillside or in strip mines where the stripping ratio has become too high to be economical for strip mining (Schobert, 1987). In auger mining, an auger drills it way into the face of the coal seam, and the coal is removed via conveyor and loaded directly onto a truck.

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24th clip Surface Mining (Stripping Ratio) YouTube

Nov 22, 2016· 24th clip Surface Mining (Stripping Ratio) Viriyah Miner. Loading Unsubscribe from Viriyah Miner? Open Cut Coal Mine Planning & Scheduling Software Duration: 4:38.

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Coal Mining Stripping Ratio- EQUFIX Mining machine

Coal Mining Stripping Ratio. In coal mining contour strip mining if the breakeven 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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Lecture 4 Calculating Stripping Ratios for Area Strip Mines

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 SMEs Surface Mining were specifically referenced

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