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Stripping Ratio In Ore Mining

Stripping Ratio In Ore Mining

Mar 02 2010 3.2.5 Instantaneous Stripping Ratio. The stripping ratio SR refers to the amount of waste material that must be removed for a given amount of ore. The Instantaneous Stripping Ratio ISR is the stripping ratio for a given push back where a tiny slice of material i.e. ore andor waste is removed from a pit wall.

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  • Surface mining planning and design of open pit mining

    Surface mining planning and design of open pit mining

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

  • Endeavour Reports Strong Q12021 Results Endeavour Mining

    Endeavour Reports Strong Q12021 Results Endeavour Mining

    May 13 2021 Tonnes ore mined decreased due to the expected increase in strip ratio following the ramp up of mining activities and the commencement of pre-stripping activities at the East Pit. Tonnes milled decreased due to lower mill availability as continued enhancements were made to the SAG mill pebble crusher and vertical tower mill which started in Q4 .

  • 2 surface mine planning SlideShare

    2 surface mine planning SlideShare

    Oct 09 2016 Pit Planning amp Design Long-range mine planning Maximum allowable stripping ratio break-even ratio establishes pit limits Ratio of overburden to ore at the ultimate boundary of the pit where the profit margin is zero Value of ore in ton is the recoverable value production cost is the overall cost through refining or final processing.

  • Fortuna reports production of 55 953 gold equivalent

    Fortuna reports production of 55 953 gold equivalent

    Mining. A total of 1817000 tonnes of ore were mined in the second quarter of 2021 at a strip ratio of 0.91 20 percent below plan. Mine waste movement increased 34 percent compared to the first quarter of 2021 in line with expectation. Mine reconciliation and metallurgical performance

  • mining engineering STRIPPING RATIO S

    mining engineering STRIPPING RATIO S

    a. SR measures the amount of waste that needs to be removed to get an amount of ore just as we mine it. Note the amount b. This will differ depending on time span under consideration. Initial studies feasibility overall stripping ratio. Current month incremental stripping ratio.

  • Stripping ratio Wikipedia Republished WIKI 2

    Stripping ratio Wikipedia Republished WIKI 2

    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. Stripping ratios are typically reduced to show the volume of waste removal required to extract one unit .

  • Major Mines amp Projects Montepuez Project

    Major Mines amp Projects Montepuez Project

    After mining the shallow ore from Buffalo the mining fleet will move to Elephant to mine the shallow ore in year 5. Over the first 7 years of production the strip ratio will be extremely low approximately 0.2 waste to ore ratio and the mining rate will be approximately 1.7Mtpa including ore and waste.

  • TVBIP Ratio Explained The Economics of Oil Sands Mining

    TVBIP Ratio Explained The Economics of Oil Sands Mining

    Apr 30 2016 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. A better measure of mining economics is the TVBIP ratio.

  • 324 Step 2 How Much of the Resource is a Reserve

    324 Step 2 How Much of the Resource is a Reserve

    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.

  • Lecture 4 Calculating Stripping Ratios For Area Strip Mines

    Lecture 4 Calculating Stripping Ratios For Area Strip Mines

    Stripping Ratio determines relative amounts of each to be moved. These notes contain information considered common knowledge to those familiar with Strip Mining. Strip Mining 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.

  • Karara Iron Ore Mine Mining Technology Mining News

    Karara Iron Ore Mine Mining Technology Mining News

    To optimise the development of the pit and ensure that ores of consistent grade are sent to the processing plant mining will take place at several levels and in assorted ore grades. The mine will have a 0.381 waste to ore stripping ratio. A trial mining project was carried out in December 2010 based on the Karara South and Karara East DSO .

  • 2012 Americas School of Mines

    2012 Americas School of Mines

    Strip Ratio Applies to an open pit mine SR is the mass of waste to be mined to obtain one unit mass of ore. ore that goes to concentrator Examples Oil sands deposits in Alberta SR 1.01.5 Highland Valley SR 0.45 2007 Teck annual report

  • Victoria Gold Reports 2021 First Quarter Results

    Victoria Gold Reports 2021 First Quarter Results

    Mar 31 2021 Mining During the three months ended March 31 2021 a total of 1.6 million tonnes of ore were mined at a strip ratio of 31 with a total of 6.2 million tonnes of material mined. In comparison 0.9 million tonnes of ore were mined at a strip ratio of 1.71 with a total of 2.5 million tonnes of material mined for the prior comparable period .

  • Stripping Ratio Mineral Production Activities

    Stripping Ratio Mineral Production Activities

    Stripping ratio is defined as the tonnage of waste rock to be mined divided by the tonnage of ore to be mined from the pit. Stripping ratio is influenced by the shape of the orebody and may vary considerably during the life of the mine. Except in rare cases it increases with depth of the orebody below surface. The unit cost of mining may increase over the life of a pit due to increased stripping ratio and

  • 324 Step 2 How Much of the Resource is a Reserve

    324 Step 2 How Much of the Resource is a Reserve

    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.

  • PDF Stripping Ratios Pit Limits amp Cutoff Grade

    PDF Stripping Ratios Pit Limits amp Cutoff Grade

    The amount of ore uncovered is A4 A4 100 25 100 25 5000 ft2 2A3 125 125 -100 100 5625 ft2 The instantaneous stripping ratio is 5625 SR instantaneous 1.125 5000 The overall stripping ratio with bench 7 removed is 15625 SR overall 0.48 32500 Bench 8 With mining of bench 8 another 5000 ft2 of ore A6 is removed.

  • Economic Surface Mining of Multiple Seams

    Economic Surface Mining of Multiple Seams

    of conventional stripping multiple-seam slrip-miuing is classified either as area or contour mining .. Area strip-mining is practiced on relatively flat terrain. A box cut is made through the overburden to expose the top coal seam. Successive parallel cuts ore then made and

  • Stripping ratio mining Britannica

    Stripping ratio mining Britannica

    Other articles where Stripping ratio is discussed 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. Stripping ratios can also consider the selling price of coal and a certain minimum profit can be added to the total cost of producing and

  • IFRIC 20 Stripping Costs in the Production Phase of a

    IFRIC 20 Stripping Costs in the Production Phase of a

    Aug 26 2010 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 .

  • PPT Calculating Stripping Ratios for Area Strip Mines

    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 SMEs Surface Mining were specifically referenced fStripping Ratio as a .

  • Major Mines amp Projects Mining Intelligence and News

    Major Mines amp Projects Mining Intelligence and News

    Average life of mine material moved is expected to be approximately 108 million tonnes per year with ore feed of 40 million tonnes per year and average life of mine strip ratio of 1.66. Ore extracted from the mine will be transported from the open pit by truck to the primary crusher area and then transported via a conventional conveyor to the .