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Stripping Ratio Calculation In Mining

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Block Method of Strip Mining

The only shortcoming with this calculation is that overburden removal costs are not constant but vary with the size of the job and the equipment The calculated break-even strip ratios are Block Method = 16 7 yd/ton of coal Conventional = 15 2 yd/ton of coal The actual stripping ratio

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ESTIMATION OF CAPITAL COSTS FOR ESTABLISHING COAL

ESTIMATION OF CAPITAL COSTS FOR ESTABLISHING COAL MINES IN SOUTH AFRICA Moshe Mohutsiwa A research report submitted to the Faculty of Engineering and the Built Environment University of the Witwatersrand in partial fulfilment of the mining (stripping deeper hard overburden) methods and associated

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What is the maximum stripping ratio of open pit Diamond

Popular Answers ( 1) A high grade orebody can support a high stripping ratio A low grade ore body cannot support a high stripping ratio The cost is purely driven by the cost of the mining fleet (capital and operating costs) to move the waste ore Larger scale operations who can maximise the economies of scale can be profitable with low grade and higher strip ratios

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Stripping ratio

If over the life of an open-pit mine you have to move three tons of barren dirt or rock to extract one ton of ore you run through your plant your stripping ratio is 3 1 Obviously the higher the stripping ratio the more expensive the mining and the less profit there is in doing it

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stripping ratio in coal mining

Stripping ratio or strip ratio in mining refers to the ratio of the volume of overburden (waste material) required to be handled in order to extract some volume of ore A 31 strip ratio means that mining 1 m 3 of ore will require mining 3 m 3 of waste rock (Hartman 1992 )

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CHAPTER 11 Mining Technology

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

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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 2 1 That means mining 1 cubic meter of ore would require mining 3 cubic meters of overburden

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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 volume of More details Get Price Lecture 4 Calculating Stripping Ratios for Area Strip Mines ppt

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stripping ratio in coal mining

Stripping Ratio Calculation In Mining - cz-eu 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 be handled in order to extract some volume of

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Surface mining planning and design of open pit mining

Jan 09 2016vii) 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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stripping ratio calculation in mining

Stripping Ratio Gold Mining - ondawireless ru coal mining stripping ratio Ball Mill is one of the biggest manufacturers in Aggregate Processing Machinery for the coal mining stripping ratio sand gravel More stripping ratio calculation in mining - Calculating Stripping Ratios Mnge 315

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(PPT) Calculating Stripping Ratios for Area Strip Mines

Books such as "Elements of Practical Coal Mining" and SME's "Surface Mining" were specifically referenced Stripping Ratio as a Fundamental • Ability to surface mine depends on the value of the ore being high enough to offset the cost of Overburden Removal – Stripping Ratio determines relative amounts of each to be moved • If coal generates a $5/ton earning and overburden costs 45 cents per

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IFRIC 20 — Stripping Costs in the Production Phase of a

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'

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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

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(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 Stripping Ratio as a

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Mine wastes management

The ratio of overburden excavated to the amount of mineral removed is called the overburden ratio or stripping ratio For example a stripping ratio of 4 1 means that 4 tonnes of waste rock are removed to extract one tonne of ore Lower the ratio the more productive the mine

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strip ratio 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 3 1 stripping ratio means that mining one tonne of ore will require mining three tonnes of waste rock

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What Is a Stripping Ratio? (with picture)

Aug 08 2019Stripping 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

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Stripping Ratio Coal Mining Comp Coal Russian

Stripping Ratio Calculation In Mining 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

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IFRS First Impressions

stripping costs A recent KPMG survey revealed that many companies capitalise costs often using an average life-of-mine stripping ratio approach while others expense such costs as incurred or follow the US GAAP approach of allocating all production stripping costs to inventory produced in the period

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stripping ratio coal mining comp

stripping ratio in coal mining mining or underground mining depending on a limiting factor called stripping ratio or if th in the large sized operations shovel-truck system dragline stripping with crushing plant t Effect Of Stripping Ratio In Coal Mining Stripping ratio the free encyclopedia In mini stripping ratio coal mining comp

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4 Uranium Mining Processing and Reclamation

T his chapter outlines the basic steps involved in mining processing and reclamation that might be suitable for uranium ore deposits in the Commonwealth of ia For uranium ore deposits the choice of mining methods and processing options is very deposit-specific and dependent on many variables such as the quality and quantity of the ore the shape and depth of the ore deposit site

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Metal Recovery Rate

The metal recovery rate or also known as the mineral recovery percentage indicates what percentage of valuable metals are expected to be available for sale after the refining process has taken place The metal recovery rate can be found in a mining company's National Instrument 43-101 or in a similar applicable international reporting standard

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stripping ratio coal mining comp

stripping ratio in coal mining mining or underground mining depending on a limiting factor called stripping ratio or if th in the large sized operations shovel-truck system dragline stripping with crushing plant t Effect Of Stripping Ratio In Coal Mining Stripping ratio the free encyclopedia In mini stripping ratio coal mining comp

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stripping ratio calculation in mining

Oct 30 2018 As a result mining companies calculate strip ratios for openpit projects well before they enter development and production and seek out 1 4 Stripping Ratio Ratio Surface Mining Scribd After going through this lecture you will be able to 1 list and define stripping ratios (K C) 2 calculate various stripping ratios for given

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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

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Surface Mine Reserves

If mining were to start in the area of lowest stripping ratio and then move one grid node in the direction of least increasing stripping ratio the Accumulative stripping ratio would be based on all key and non-key strata between the start point and the next grid node location

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Economic Surface Mining of Multiple Seams

Economic Surface Mining of Multiple Seams By THOMAS V FALKIE' md WlLLIAM E PORTERt SYNOPSIS A Xeological and mining conditions become more complex and as overall mining economics become more marginal short-and long-range decision-making regarding muIliple-scam surface mining becomes more difficult

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mining stripping ratio

Muchos ejemplos de oraciones traducidas contienen "mining stripping ratio" – Diccionario espaol-ingls y buscador de traducciones en espaol in periods when the actual ratio was less than the life-of-mine stripping ratio we reduced the capitalized mine stri reserve calculations our mine engineers have calculated a life-of

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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 3 1 stripping ratio means that mining one tonne of ore will require mining three tonnes of waste rock

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