Mine recovery the percentage of mined ore that makes it to the processing plant. Mineral a chemical compound, such as copper or iron, formed into crystals by geological processes. Muck in open pit mining, muck is the ore that has been broken into pieces by explosives.
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 3:1 stripping ratio means that mining one tonne of ore will require mining three tonnes of waste rock.
Iron ore is the raw material used to make pig iron, which is one of the main raw materials to make steel—98% of the mined iron ore is used to make steel. Indeed, it has been argued that iron ore is "more integral to the global economy than any other commodity, except perhaps oil ".
Physical mining output is measured as total material moved, so that the MPI performance is not affected by changes in ore grade, stripping ratio, or the price of the commodity. We have developed an extensive data set to conduct analyses using the MPI.
The problem is to utilize millions of tons, and we may safely say billions of tons, of now worthless iron-bearing rock and to produce from it 10,000,000 to 20,000,000 tons per year of high-grade ore carrying 60 per cent, iron or higher; to take the lean material as found in nature, varying widely in iron content, and bring it up to a uniform standard of shipping ore. At present these ores are
5 iron furnaces will produce 5x4=20 iron in 12 seconds (3 sec per 1 iron), and 4 steel furnaces will consume 20 iron per 12 seconds (4x5 at 12 sec per 5 iron). Which means a ratio of 5 iron per 4 steel furnaces and that looks very similar to the results i saw when i powered up my smelting facility
The MOU provides that The Kami LP and Envest will enter into transactions whereby Envest will acquire and manage the equipment that The Kami LP intends to procure from Schneider Electric for use in the Kami Iron Ore Project (“Kami Project”), located in western Labrador (see
the characteristics of the mineral (such as the quality, size, hardness, iron ore grade, reducibility, mineral/waste rate, and type of deposit), mining processes (type of exploitation, ore processing, available technology), and transportation (distance to cover).
2015-04-03· Understanding Iron Ores and Mining of Iron Ore Iron (Fe) is an abundant and a widely distributed element in the in the crust of the earth, constituting on an average ranging from 2 % to 3 % in sedimentary rocks to 8.5 % in basalt and gabbro.
2014-03-14· Overburden and stripping ratios are important in determining whether a deposit is to be mined. The stripping ratio describes the unit of overburden that must be removed for each unit of crude ore mined. A typical open pit iron ore mine is shown in Fig 1 . Fig 1 A typical open pit iron ore mine. On the basis of mining methods, iron ore mining can be broadly divided into two categories namely
Calculation of Classifier Efficiency. The efficiency of a classifier, also determined by means of screen analyses, has been defined as the ratio, expressed as percentage, of the weight of classified material in the overflow to the weight of classifiable material in the feed.
Coal, with an average recovery ratio of 82%, requires the mining of 1.2 tons of material to recover 1 ton of coal. Industrial minerals have an average recovery ratio of 90%, while metals have an average recovery ratio of 4.5%. Thus, to recover 1 ton of metal, 22 tons of material will need to be mined.