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
3.2.6: Maximum Allowable Stripping Ratio (SRmax) Earlier in this lesson, we looked at the maximum stripping ratio, and we did it for coal seam. You will recall that the maximum allowable stripping ratio, SR max, also called break-even stripping ratio, is the maximum amount of overburden/waste that can be extracted per unit of ore at the
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
Examples of stripping ratios. Ioannou gave some examples of mines with good strip ratios, including Lundin Mining’s (TSX:LUN) Candelaria copper-gold-silver mine in Chile at 2.8:1, and Copper
4.1.7 CUT-OFF STRIPPING RATIO OR BREAK-EVEN STRIPPING RATIO The stripping ratio at which the cost of mining the ore and waste is equal to the revenue from that ore. The cut-off stripping ratio is the same as the break-even stripping ratio. This is the stripping ratio at which the net value of the last increment of ore is just sufficient to pay for the cost of removing the waste to release the ore
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 fStripping Ratio as a
Break-Even Analysis of mining projects 23 5.1 Break Even analysis of Bolani Ores Mines 23 5.1.1 General Description of the mine 23 5.1.1.1 Quality of lumps 25 5.1.1.2 Quality of fines 25 5.1.1.3 Equipments used 26 5.1.2 Break Even Calculation 27 5.1.2.1 Variable costs 27 5.1.2.2 Fixed costs 27
Stripping Ratios, Pit Limits & Cutoff Grade Optimization. F. Barcelonistas. Download PDF. Download Full PDF Package. This paper. ... A review of cut-off grade policy models for open pit mining operations. By Iv n C rcamo. Optimum cut-off grade’s calculation in open pit mines with regard to reducing the undesirable environmental impacts
4.1.7 CUT-OFF STRIPPING RATIO OR BREAK-EVEN STRIPPING RATIO The stripping ratio at which the cost of mining the ore and waste is equal to the revenue from that ore. The cut-off stripping ratio is the same as the break-even stripping ratio. This is the stripping ratio at which the net value of the last increment of ore is just sufficient to pay for the cost of removing the waste to release the ore
Break Even Stripping Ratio(BESR)/Maximum Stripping Ratio(SR max)/Cut off Stripping Ratio : This is defined as that stripping ratio at which cost of mining one tonne of ore & corresponding volume of waste material equals the revenue received by sale of one tonne of orebody OR when cost of mining ore & waste matches with revenue generated by sale
For example, a 3:1 stripping ratio means t hat mining one c ubic meter of ore will require mining three cubic meters of waste rock. • Syncrude T ar Sands: SR = 1.2
1.1 opencast mining 1.2 stripping ratio 1.3 breakeven stripping ratio 1.4 quarriable limit as per stripping ratio ... example, if random number occurs between 0001 – 9909 indicates the shovel breakdown and if it ... Break even stripping ratio = (mining cost per tonne of
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
break even striping ratio - crusher equipment. break even stripping ratio example for coal mining CachedMining definition of Mining in the Free Online Encyclopedia
The mining method used to mine iron ore depends on the placement of the ore body and surrounding environment mining engineering STRIPPING RATIO (S)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 * Consider value of ore b
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