04/04/2016 · 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.
fThe Coal Area Strip Mine Formula. Strip Ratio = OB Thickness (in ft) * /. 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. fYour Turn.
For Lakhanpur coal mine area, MCL the financial ratios were calculated for 200809 to 201011. Working capital, current ratio, quick ratio and cash ratio, debt ratio, debtequity ratio and capitalization ratio were not satisfactory. So the mine may face shortage of cash due .
Discover some of the most important financial ratios used by investors and analysts to evaluate companies in the metals and mining industry.
25/02/2015 · The Pros of Strip Mining. 1. High Recovery Rate. Other forms of mining do not guarantee the same rate of return as strip mining does. Materials are recovered at a rate of up to 90 percent during strip mining, which is a much higher recovery rate than most forms of mining can promise. Tunnel mining, for instance, only offers users a potential ...
The underlying features that make Sebuku mine such a jewel for Sakari also include its very low strip ratio, averaging about 5:1, short haul and barging distances to reach the atsea load out point. These give Sebuku one of the lowest cash costs of mining in the industry.
01/11/2019 · In its Q1 2019 report, the company said that, generally speaking, "higher strip ratio" at its mines drove up cost per ton for the period. Western Fuels Association reported in its annual report that by 2023, the strip ratio at its flagship Dry Fork mine "will have increased by over 40%."
Lifeofmine planning risk assessments on geological structure and risks to your sites coal mine. Resource optimization, strip ratio models, ROM models through to final product using proven assumptions. Development in Standards for Our Industry ... We owe you so much for development and learnings of how to be a good coal miner.