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break even ratio for australia coal mining

break even ratio for australia coal mining

Mining drills produce .5 units of 4 MJ coal per second, or 2 MW, and steam engines use up 900 KW, so you need .45 miners per steam engine. Miners take 90 KW to run, so each steam engine really only provides 900 - 90(.45) = 859.5 KW net power after fueling itself.

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  • Break even stripping ratio Britannica

    Break even stripping ratio Britannica

    The break-even stripping ratio is a function of ore value and the costs involved. If the break-even 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 …

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  • Break Even Analysis How to Calculate the Cut Off Grade

    Break Even Analysis How to Calculate the Cut Off Grade

    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, I refer you ...

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  • Determining Stripping Ratio Basic Mining Techniques

    Determining Stripping Ratio Basic Mining Techniques

    Apr 04, 2016 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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  • Peabody Losses Even Selling Coal Australian Mines Wouldn

    Peabody Losses Even Selling Coal Australian Mines Wouldn

    Feb 06, 2020 LISTEN TO ARTICLE. 4:21. There was a time when Australia was the promised land for America’s coal giants. Faced with the decline of coal-fired …

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  • mining engineering STRIPPING RATIO S

    mining engineering STRIPPING RATIO S

    Jun 06, 2010 * Thus in coal SR is the number of BCM of waste that needs to be removed to uncover 1 t of coal ... Switch to underground mining if your stripping ratio is more than BESR. a. May or may not be economically feasible ... Break Even Point: Discussion. a. Cost of mining – you control it!

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  • PDF Stripping Ratios Pit Limits amp Cutoff Grade

    PDF Stripping Ratios Pit Limits amp 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.

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  • Stripping Ratios What are They and Why are They Important

    Stripping Ratios What are They and Why are They Important

    Oct 30, 2018 As a result, mining companies calculate strip ratios for open-pit projects well before they enter development and production, and seek out projects with relatively low strip ratios. Even so, given ...

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  • Stripping ratio Wikipedia

    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.

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  • Definisi Pertambangan Pertambangan

    Definisi Pertambangan Pertambangan

    SR = 1 = Bisa Tamka/Tamda. 2. Break Even Stripping Ratio (BESR) Yaitu perbandingan antara keuntungan kotor dengan ongkos pembuangan O/B. BESR = Cost Penggalian Bijih / Cost Penggalian OB. Untuk memilih system penambangan digunakan istilah BESR-1 bagi open pit yaitu overall stripping ratio. BESR-1 1 = Tamka.

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  • FINANCIAL ANALYSIS OF MINING PROJECTS

    FINANCIAL ANALYSIS OF MINING PROJECTS

    For Lakhanpur coal mine area, MCL the financial ratios were calculated for 2008-09 to 2010-11. Working capital, current ratio, quick ratio and cash ratio, debt ratio, debt-equity ratio and capitalization ratio were not satisfactory. So the mine may face shortage of cash due huge debts. Gross profit margin, operating profit margin,

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  • What Is a Stripping Ratio with picture

    What Is a Stripping Ratio with picture

    The stripping ratio is commonly used in the ore and coal mining processes. ... if the mining company must extract one part of ore to three and a half parts of waste in order to break even, it stands to reason that the company will seek to look for mining sites where it can extract at least one part of ore to two and a half parts of waste in ...

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  • Mine Planning PDF Coal Mining Mining

    Mine Planning PDF Coal Mining Mining

    coal mining methods • underground • opencast • hybrid methods. information flow & processess in planning. ... break even strip ratios. stage 1 stage 2 stage 3 choice of mining method, technology and rated capacity. other key considerations: mine/block dimension & layout , surface constraints.

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  • break even ratio for australia coal mining

    break even ratio for australia coal mining

    Break-even stripping ratio | Britannica. In coal mining: Contour strip mining. If the break-even 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.

    read more
  • Break Even Stripping Ratio Example For Coal Mining

    Break Even Stripping Ratio Example For Coal Mining

    break even ratio for australia coal mining. break even ratio for australia coal mining. ... exploration in mining industry, ... is designed to achieve maximum productivity and high reduction ratio. Read more

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