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what is stripping ratio for mine

what is stripping ratio for mine

Determining Stripping Ratio - Basic Mining Techniques

2016-4-4 · 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.

Stripping Ratios: What are They and Why are They

2018-10-30 · 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 ...

What Is a Stripping Ratio? (with picture) - wiseGEEK

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

Stripping ratio and pit limit - Basic Mining Techniques

2017-7-26 · The units for stripping ratios can vary and usually depends on the geological properties of the deposit and the commodity mined. It can be expressed in tonnes (t), or cubic meters (m 3).Usually for coal, cubic meters (m 3) or tonnes (t) are used.However, for hard rock mines where the geology is usually complex with the presence of various rock types, tonnage (t) is usually preferred.

what is stripping ratio coal mining - Mine Equipments

High stripping ratio requires careful planning - Mining Weekly 6 Dec 2002 ... This is due to the high stripping ratio of 19:1 at the mine, meaning for every ton of reef, there is 19 t of overburden. Louw, who learnt the mining ...

Whats the average stripping ratio of open pit mines

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.

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

Stripping Ratios, Pit Limits & Cutoff Grade Optimization. Download. Related Papers. Optimum cut-off grade policy for open pit mining operations through net present value algorithm considering metal price and cost escalation. By Raul Cezar.

(PPT) 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 SME’s “Surface Mining” were specifically referenced fStripping Ratio as a ...

Mining Terms - kau

2008-11-12 · Stripping Ratio: is the ratio of a unit of waste material removed per similar unit of ore material removed. Toe: is the base of a bank bench or a slope. Waste Dump : is a place were waste materials are piled.

Strip Mining - an overview | ScienceDirect Topics

Andrew P. Schissler, in Encyclopedia of Energy, 2004 2.3 Strip Mining. Strip mining is employed in coal reserves where the overburden is removed in rectangular blocks in plan view called pits or strips. The pits are parallel and adjacent to each other. Strip mining is fundamentally different from contour or area mining on how the overburden is displaced, called spoil handling.

what is stripping ratio coal mining - Mine Equipments

High stripping ratio requires careful planning - Mining Weekly 6 Dec 2002 ... This is due to the high stripping ratio of 19:1 at the mine, meaning for every ton of reef, there is 19 t of overburden. Louw, who learnt the mining ...

What is stripping Ratio and how is it calculated? - Answers

2008-11-12 · It's a ratio of waste extracted at a mine and is expressed as: (Total extracted - Mineral for plant) / Mineral for plant -m0id. ... We divide the overburden thickness by ore thickness to get the stripping ratio For example if we have an overburden thickness of 80m and ore thickness of 50 m , then the stripping ratio will be: 80/50= 1.6.

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

Stripping Ratios, Pit Limits & Cutoff Grade Optimization. Download. Related Papers. Optimum cut-off grade policy for open pit mining operations through net present value algorithm considering metal price and cost escalation. By Raul Cezar.

Opencast Working And Stripping Ratio » MiningPathsala

2021-6-30 · stripping ratio :- It is generally expressed in the proportions of Overburden to coal or mineral removed. As the depth of Overburden increases more amount of money is spent for removal of the Overburden for exposing the mineral body / coal and the time

(PPT) 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 SME’s “Surface Mining” were specifically referenced fStripping Ratio as a ...

effect of stripping ratio in coal mining

effect of stripping ratio in coal mining Solution for. Aug 31, 2012 Switch to underground mining if your stripping ratio is more than BESR. Environmental impact of the coal industry Wikipedia, the free This process is known as acid rock drainage or acid mine drainage.

Mining Terms - kau

2008-11-12 · Stripping Ratio: is the ratio of a unit of waste material removed per similar unit of ore material removed. Toe: is the base of a bank bench or a slope. Waste Dump : is a place were waste materials are piled.

Chapter 4: Mining waste - SGU

The ratio of waste rock/ore is called stripping ratio. For example, a stripping ratio of 2:1 means that 2 tonnes of waste rock needs to be removed to mine 1 tonne of ore. Generally, an open pit mine has a higher stripping ratio than an underground mine. Waste rock is often deposited in piles or heaps close to the mine to minimize transports.

Strip Mining - an overview | ScienceDirect Topics

Andrew P. Schissler, in Encyclopedia of Energy, 2004 2.3 Strip Mining. Strip mining is employed in coal reserves where the overburden is removed in rectangular blocks in plan view called pits or strips. The pits are parallel and adjacent to each other. Strip mining is fundamentally different from contour or area mining on how the overburden is displaced, called spoil handling.

Stripping Costs in the Production Phase of a Surface Mine

2015-8-28 · 3 A mining entity may continue to remove overburden and to incur stripping costs during the production phase of the mine. 4 The material removed when stripping in the production phase will not necessarily be 100 per cent waste; often it will be a combination of ore and waste. The ratio of ore to waste can range from uneconomic low

What is stripping Ratio and how is it calculated? - Answers

2008-11-12 · It's a ratio of waste extracted at a mine and is expressed as: (Total extracted - Mineral for plant) / Mineral for plant -m0id. ... We divide the overburden thickness by ore thickness to get the stripping ratio For example if we have an overburden thickness of 80m and ore thickness of 50 m , then the stripping ratio will be: 80/50= 1.6.

strip ratio in coal mining Mine Equipments

2019-12-31 · 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 . what is stripping ratio coal mining Mine Equipments.

FASB Emerging Issues Task Force

mine stripping ratio," or a "stripping ratio," which is calculated as the estimated total number of units (for example, tons) of waste material mined during production divided by the estimated total proved and probable reserves contained within the mine (that is, recoverable ore in a unit of

effect of stripping ratio in coal mining

effect of stripping ratio in coal mining Solution for. Aug 31, 2012 Switch to underground mining if your stripping ratio is more than BESR. Environmental impact of the coal industry Wikipedia, the free This process is known as acid rock drainage or acid mine drainage.

Chapter 4: Mining waste - SGU

The ratio of waste rock/ore is called stripping ratio. For example, a stripping ratio of 2:1 means that 2 tonnes of waste rock needs to be removed to mine 1 tonne of ore. Generally, an open pit mine has a higher stripping ratio than an underground mine. Waste rock is often deposited in piles or heaps close to the mine to minimize transports.

Mining Terms - kau

2008-11-12 · Stripping Ratio: is the ratio of a unit of waste material removed per similar unit of ore material removed. Toe: is the base of a bank bench or a slope. Waste Dump : is a place were waste materials are piled.

Understanding Iron Ores and Mining of Iron Ore – IspatGuru

2015-4-3 · The economic stripping ratio varies widely from mine to mine, depending upon a number of factors. In the case of direct shipping ores, it may be as high as 6:1 or 7:1. In the case of low grade ore , a stripping ratio of less than 1.5:1 is often considered as an

Strip Mining - an overview | ScienceDirect Topics

Andrew P. Schissler, in Encyclopedia of Energy, 2004 2.3 Strip Mining. Strip mining is employed in coal reserves where the overburden is removed in rectangular blocks in plan view called pits or strips. The pits are parallel and adjacent to each other. Strip mining is fundamentally different from contour or area mining on how the overburden is displaced, called spoil handling.

Chapter 2: An introduction to mining - SGU

For example, a stripping ratio of 2:1 means that 2 tonnes of waste rock need to be mined to mine 1 tonne of ore. The stripping ratio depends on several things, such as the depth and geometry of the ore body, the mining method that is used and the composition and stability of the rock.

How do you calculate the stripping ratio? - Answers

2009-6-6 · Best Answer. Copy. We divide the overburden thickness by ore thickness to get the stripping ratio For example if we have an overburden thickness of 80m and ore thickness of 50 m , then the ...