• stripping ratio in coal mining

    Feb 21, 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 of ore

  • What Is a Stripping Ratio? (with picture)

    21/02/2021· Esther Ejim Date: February 21, 2021 The stripping ratio is commonly used in the ore and coal mining processes Stripping ratio is a term that is derived from the mining industry and is used in reference to the openpit mining process The stripping ratio method of calculating the profitability of the mining procedure is commonly used in the ore or coal mining process

  • Stripping ratio Wikipedia

    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

  • Breakeven stripping ratio | Britannica

    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 by augering

  • stripping ratio in coal mining

    Feb 21, 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 of ore

  • stripping ratio calculation in mining

    Determining Stripping Ratio Basic Mining Techniques = 029 = 03 is the maximum allowable stripping ratio for break even This mean the income generated by one unit of 06% graded copper is able to offset the cost of 3 units waste at no profit (Income = Cost) Feel free to comment so that i can improve on the materials on this blog Follow, like and share if you find this information useful 5

  • (PPT) Calculating Stripping Ratios for Area Strip Mines

    The Coal Area Strip Mine Formula • Strip Ratio = OB Thickness (in ft) * 1111/ 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 Your Turn • Use What You Have Learned About Calculating Stripping Ratios for Strip Mines and Break Even Limits to

  • Coal Ratio an overview | ScienceDirect Topics

    To develop a mine, the break even stripping ratio (at the surface of the final pit) must be established It is found from the formula: B = R − P / S Where B = breakeven stripping ratio (overburden per ton of coal) in meter 3, R = market price of coal per ton, P = production cost, including cost of mining and preparation but excludes stripping cost per ton of coal, and S = stripping cost per

  • Lecture 4 Calculating Stripping Ratios for Area Strip

    overburden costs 45 cents per cubic yard to move what is the maximum economic stripping ratio $500/ 045 = just over 11 cubic yards per ton Called a Break Even Stripping Ratio Complexities Warning Units of Stripping Ratio depend on convenience of the industry Coal overburden is normally light and machines are limited by volume in cubic yards Coal is sold by the ton Cubic Yards/ton makes sense

  • Basic Mining Techniques

    Basic Mining Techniques

  • Whats the average stripping ratio of open pit mines

    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

  • (PDF) Surface Mine Design ResearchGate

    Auger mining is a surface mining techniq ue used to recover additional coal from a seam located behind a highwall produced either by stripping or openpit mining

  • stripping ratio in coal mining

    Feb 21, 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 of ore

  • stripping ratio calculation in mining

    Breakeven stripping ratio Britannica 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

  • strip ratio mining Auto Gyro Africa

    Breakeven stripping ratio | Britannica 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 by augering Get Price

  • How to calculate stripping ratio? ResearchGate

    For instance: If the thickness waste rock (overburden) is 100m and the thickness of coal is 50m then stripping ratio would be 2:1 That means one m3 (cubic meter) of coal would need mining two m3

  • Coal mining Choosing a mining method | Britannica

    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 by augering Area strip mining

  • Can Indonesia's coal mines maximise strip ratios and

    16/12/2016· Regional breakdown of breakeven strip ratio and total cash costs at US$73/t price scenario; Top 16 mines on Q4 LoM strip ratio and cumulative marketable production curve ; Top 16 mines on breakeven LoM strip ratio and cumulative marketable production curve; Percentage of change in strip ratio to break even relative to coal quality 4,200GAR at US73/t; Potential reserve increase

  • 12Stripping Ratios & Pit Limits Introduction to

    12Stripping Ratios & Pit Limits Introduction to Mining Lecture UnitStripping Ratios Pit Limits Colorado School of Mines Mining Engineering 12Stripping Ratios & Pit Limits Introduction to MiningSchool Colorado School of Mines; Course Title MNGN 210; Type Homework Help Uploaded By mohamedbeiba Pages 36 Ratings 100% (4) 4 out of 4 people found this document helpful; This

  • OPEN CAST MINE PLANNING Mining and Blasting

    Factors affecting planning & designing of a surface mine 1) Geological factors a Dip b Size of the deposits c Form of the deposits d Depth of the deposits from surface e Surface topography f Geotechnical parameters of the rock 2) Availability of funds/capital 3) Break even Stripping ratio/cost economic analysis 4) Production targets

  • influence of striping ratio on open cast coal mining

    break even stripping ratio example for coal mining Oct 26, 2020 Stripping ratio is a term that is derived from the mining industry and is used in reference to the openpit mining process 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

  • PRA STUDI KELAYAKAN POTENSI SUMBERDAYA

    For recommendations coal transport line going through the village roads and across provinces After doing a breakeven stripping ratio analysis Block1 is not feasible to use the system as a system of open pit mining, while Block25 feasible using openpit mining system as penambanganya system Based on the analysis of sensitivity to changes in selling prices ( recoverable value/tons ) Block

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