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

Calculate the B.E.S.R in the mining and processing a 0.60% copper ore deposit given the following information. Selling price in concentrate $1.63/kg. Surface mining costs $ 6.80/ton. Surface stripping costs $ 7.50/ton. Overall (milling and Smelting) 92%. BESR - Break Even Strip Ratio

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1 4 Stripping Ratio | Surface Mining | Mining

coal (stripping ratio) etc The growing needs have been pushing the limits, to which the mining industry has to reach to lift itself to fulfill the demand. The effect can be seen from the methods of mining that have evolved over the years. One of the oldest methods of mining is the Bord and Pillar. It is a method in

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IAS 16 — Accounting for stripping costs in the production ...

For conducting a mining project's break even analysis, you first need to know about the operational expenses (OPEX).When the OPEX is known, you can calculate the mineral's cut off grade, which is the break even grade, below which it is not economically viable to mine the ore.To find out how I come up with the cost price per tonne (OPEX) if a feasibility study isn't available, …

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Solved: Calculate The B.E.S.R In The Mining And Processing ...

The Allowable Stripping Ratio (ASR) characterizes the maximum scope of stripping which is practicable in OP operation. The ratio stated in terms of m3 of waste per ton of the mineral can be determined in accordance with the relation 3. w ug op C C C ASR − = (3) Where, Cug: full prime cost of 1 ton of the mined mineral via underground (Dollars);

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How do you calculate the stripping ratio?

In surface mining, stripping ratio or strip ratio refers to the amount of waste (or overburden) that must be removed to release a given ore quantity. It is a number or ratio that express how much waste is mined per unit of ore. The units of a stripping ratio can vary between mine types. For example, in coal mining the stripping ratio is commonly referred to as volume/weight.

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What is stripping ratio in mining?

Jan 12, 2021· 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 …

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Stripping ratio

Jun 06, 2010· * 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. a. May or may not be economically feasible

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IFRIC 20 — Stripping Costs in the Production Phase of a ...

coal (stripping ratio) etc The growing needs have been pushing the limits, to which the mining industry has to reach to lift itself to fulfill the demand. The effect can be seen from the methods of mining that have evolved over the years. One of the oldest methods of mining is the Bord and Pillar. It is a method in

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Topic 5: Mining Methods

Stripping RatiosThe 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 most commonly expressed as: Stripping RatiosInstantaneous 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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How to calculate stripping ratio?

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 Stripping Ratio as a ...

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24th clip Surface Mining (Stripping Ratio)

Thus, given the stripping cost and the value of the exposed ore, we can calculate the breakeven or maximum stripping ratio. Stripping costs can be estimated reasonably well, based on the method of overburden removal and the region in which the mining is being conducted. We can find tables of data in handbooks to help us with this estimation.

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Stripping ratio

Oct 31, 2018· 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 | Mineral Production Activities ...

Basic Mining Techniques

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Topic 5: Mining Methods

pit gold mining project named "Coriorcco Gold", including a project description, an explanation of the main operational parameters, and an economic evaluation of the project. In the economic evaluation, variables as the breakeven cutoff grade (BCOG), stripping ratio

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What Is a Stripping Ratio? (with picture)

Yes, a 3:1 stripping ratio means that mining one cubic meter of ore will require mining three cubic meters of waste rock. ... You need two numbers to calculate a ratio. A ratio …

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stripping ratio.pdf

Striping Ratio (SR) was 1.47 : 1 smaller than Stripping Ratio ( SR ) were set of 1.60 : 1. 1. Introduction 1.1 Background Exploration activities and calculation of mineral deposits reserves constitute an important step in the mining operation plan, so that the quantity and quality of mineral deposits must be known by value of

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3.2.4: Step 2

Jun 06, 2010· * 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 …

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Mining Terms

Jan 09, 2016· 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 3:1 stripping ratio means that mining one cubic meter of ore will require mining three cubic meters of waste rock.

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Surface mining planning and design of open pit mining

Problem 6.2 (from page 178, Introductory Mining Engineering) Calculate the maximum stripping ratio (SR.max = ?) and the overall stripping ratio (SRo = ?) for the open pit shown in Figure 2. given the following conditions: • Stripping Allowance: $1.50/ton • Stripping Cost: $0.25/ton • Pit Slope: B = 65° • Berm at top of ore: a = 30 ft • Surface inclination: 25° • Dip of bed: a = 0 ...

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strip ratio mining

May 08, 2020· The mining industry is one of the oldest established industrial operations. Mining has been critical to the development of major countries, such as the U.S., Canada, and Australia. The entire ...

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