## stripping ratio calculation in mining

### (PPT) Calculating Stripping Ratios for Area Strip Mines

Calculating Stripping Ratios for Area Strip Mines Mnge 315 169;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 Stripping Ratio as a

Live Chat### IFRIC 20 Stripping Costs in the Production Phase of a

Aug 26, 20100183;32;Summary of IFRIC 20. Background. In surface mining operations, entities may find it necessary to remove mine waste materials ('overburden') to gain access to mineral ore deposits. This waste removal activity is known as 'stripping'.

Live Chat### Stripping ratio

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 31 stripping ratio means that mining one tonne of ore will require mining three tonnes of waste rock.

Live Chat### Surface mining planning and design of open pit mining

vii) Stripping Ratio The ratio is most commonly expressed as Strip Ratio (SR) is the mass of waste to be mined to obtain one unit mass of ore. Waste (tons) SR = Ore (tons) For example, a 31 stripping ratio means that mining one cubic meter of ore will

Live Chat### stripping ratio coal mining comp Mine Equipments

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

Live Chat### Stripping Ratio Calculation In Mining

Stripping ratio , 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

Live Chat### How to calculate stripping ratio?

The stripping ratio (SR) refers to the amount of waste that must be removed for a given quantity of ore in open pit mining. It is commonly expressed as It is commonly expressed as SR=Waste (tons

Live Chat### Break Even Analysis How to Calculate the Cut Off Grade

Before I can calculate the cut off grade, I first need to show a basic equation which converts a troy ounce into grams per ton 1 troy ounce = 31.1034768 grams per ton = 28.349523125 grams per tonne As you can see, the difference between a ton and a tonne is approximately 10% .

Live Chat### Stripping/Snubbing Calculations Engineering360

Stripping/Snubbing Calculations. Determine the weight, lb, of the drill collars Wt, lb = 83 lb/ft 276 ft 0.8092.

Live Chat### What is STRIPPING RATIO? What does STRIPPING RATIO mean

Aug 24, 20170183;32;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 31

Live Chat### What is stripping ratio in mining? Quora

Jul 25, 20180183;32;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 31 stripping ratio means that mining one tonne of ore wil

Live Chat### How do you calculate stripping ratio for Open Pit Mines

How do you calculate stripping ratio for Open Pit Mines? Answer. Wiki User 04/30/2013. as by product of phosphates fertilizers production, as by product from other metals mining and processing

Live Chat### Whats the average stripping ratio of open pit mines around

A high grade orebody can support a high stripping ratio. A low grade ore body cannot support a high stripping ratio. Thus you may have a range of stripping ratios from 11 to 115 or even more.

Live Chat### How do you calculate the stripping ratio Answers

Yes, a 31 stripping ratio means that mining one cubic meter of ore will require mining three cubic meters of waste rock.

Live Chat### Cost Models of Theoretical Mining Operations CostMine

Each of the models is developed from first principles based on typical mining criteria for rock densities, swell factors, drill penetration rates, etc. Industry standard estimating methods are used for equipment selection, personnel allocation, and cost estimation.

Live Chat### What Is a Stripping Ratio? (with picture)

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.

Live Chat### Analysis of Highwall Mining Stability The Effect of

HWM has become a widely applied method in surface mining, commonly used alone or in conjunction with contour or slot mining. It provides 800 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.

Live Chat### TVBIP Ratio Explained The Economics of Oil Sands Mining

The strip ratio (SR) is the simplest measure of mining efficiency. Defined as the weight of overburden (or waste ore) divided by the weight of oil sands ore, a strip ratio of 2 is considered high but feasible if the ore grade is high enough.

Live Chat### stripping ratio calculation in mining

stripping ratio calculation in mining; Stripping ratio . 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.

Live Chat### What is STRIPPING RATIO? What does STRIPPING RATIO mean

Aug 24, 20170183;32;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.

Live Chat### formular for calculating strip ratio in mining

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 31 stripping ratio means that mining one tonne of ore will require mining three tonnes of waste rock.

Live Chat### formular for calculating strip ratio in mining

calculate various stripping ratios for given situations (C, Ap) 3. explain the by surface mining or underground mining from the limiting stripping ratio (A, S, E). Read More Group note 1 Accounting policies Reporting suite 2015

Live Chat### mining engineering STRIPPING RATIO (S)

Jun 06, 20100183;32;* We calculate the amount of waste that needs to be removed to get an amount of ore/coal . Miners Only Stripping ratio allows definition of this breakeven point. Switch to underground mining if your stripping ratio is more than BESR.

Live Chat### Stripping ratio and pit limit

Jul 26, 20170183;32;Stripping ratio is expressed broadly as the ratio of waste to ore. Its simply calculating how much waste has to be removed to expose how much of ore to be mined. Stripping ratio determines where the pit limit will be.

Live Chat### Lecture 4 Calculating Stripping Ratios for Area Strip

Strip Ratio = OB Thickness (in ft) * 11.11/ Coal thickness in inches Assumes coal is 80 lbs/ft^3 (good for bituminous) Area Strip Mine Geometry Geologic Stripping Ratio no accounting for rehandle or less than 100% coal recovery

Live Chat### ECONOMIC ASSESSMENT AND MINE PRODUCTION

In the economic evaluation, variables as the breakeven cutoff grade (BCOG), stripping ratio. and optimal cutoff grade (OCOG) will be considered in order to determine the Net Present. Value (NPV), Internal Rate of Return (IRR) and mine life.

Live Chat### Stripping Ratios What are They and Why are They Important

Calculating stripping ratios. At their most basic, strip ratios can be calculated by dividing overburden thickness by ore thickness. For example, an overburden thickness of 100 meters and an ore thickness of 50 meters would yield a strip ratio of 21. That means mining 1 cubic meter of ore would require mining 3 cubic meters of overburden.

Live Chat### 24th clip Surface Mining (Stripping Ratio) YouTube

Nov 22, 20160183;32;Mining Engineering and Basic Knowledeg. Mining Engineering and Basic Knowledeg. Skip navigation Sign in. Search. 24th clip Surface Mining (Stripping Ratio) Viriyah Miner. Loading

Live Chat### what is stripping ratio coal mining Mine Equipments

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

Live Chat### Determining Stripping Ratio

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.

Live Chat### CHAPTER 11 Mining Technology Princeton University

CHAPTER 11 Mining Technology The Federal Coal Leasing Amendments Act of 1976 charged OTA to assess the feasibility of the use of deep mining technology on leased areas. With the passage of the Sur face Mining Control and Reclamation Act of 1977 congressional interest in the study of deep underground mining technology shifted

Live Chat### How do you calculate stripping ratio for Open Pit Mines

How do you calculate stripping ratio for Open Pit Mines? Answer. Wiki User 04/30/2013. as by product of phosphates fertilizers production, as by product from other metals mining and processing

Live Chat### IFRIC 20 Stripping Costs in the Production Phase of a

Aug 26, 20100183;32;In surface mining operations, entities may find it necessary to remove mine waste materials ('overburden') to gain access to mineral ore deposits. This waste removal activity is known as 'stripping'. There can be two benefits accruing to the entity from the stripping activity usable ore that can be used to produce inventory and improved access to further quantities of material that will be mined

Live Chat### Stripping ratio mining Britannica

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. open pit mining. In mining Pit geometry removed is called the overall stripping ratio.

Live Chat### (PDF) Stripping Ratios, Pit Limits amp; Cutoff Grade

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Live Chat### Break even stripping ratio Britannica

Other articles where Break even stripping ratio is discussed mining Pit geometry The break even stripping ratio is a function of ore value and the costs involved.

Live Chat### formular for calculating strip ratio in mining

Forest Coverage Rate refers to the ratio of formula for calculating forest coverage rate is asstrip= ped or dug out in mining (gangue and Chat Online Apple It's

Live Chat### Stripping Ratio Calculation In Mining

Stripping ratio , 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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