• Stripping Ratios: What are They and Why are They Important

    Oct 31, 2018· For example, an overburden thickness of 100 meters and an ore thickness of 50 meters would yield a strip ratio of 2:1. That means mining 1 cubic meter of ore would require mining

  • best strip ratio in iron ore mining Freducare

    HOME>>Product>>best strip ratio in iron ore mining. How do you calculate the stripping ratio Answers. We divide the overburden thickness by ore thickness to get the stripping ratio For example if we have an overburden thickness of 80m and ore thickness of 50 m, then the stripping ratio will be >Get Price; Strip Mining an overview ScienceDirect

  • Stripping ratio Wikipedia

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

  • Understanding Iron Ores and Mining of Iron Ore IspatGuru

    Apr 03, 2015· Understanding Iron Ores and Mining of Iron Ore. satyendra; April 3, 2015; 1 Comment ; blasting, crushing, Hematite, Iron ore, magnetite, open pit mining, screening, underground mining,; 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

  • What Is a Stripping Ratio? (with picture)

    May 09, 2020· Stripping ratio is a term that is derived from the mining industry and is used in reference to the open-pit mining process. 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

  • Whats the average stripping ratio of open pit mines around

    The lower the SR the better but an inverse relationship might result where a high grade ore deposit is associated with a high stripping ratio e.g. 15:1. Cite Can you help by adding an answer?

  • What is the maximum stripping ratio of open pit Diamond

    A low grade ore body cannot support a high stripping ratio. The cost is purely driven by the cost of the mining fleet (capital and operating costs) to move the waste ore.

  • Whats the average stripping ratio of open pit mines around

    The lower the SR the better but an inverse relationship might result where a high grade ore deposit is associated with a high stripping ratio e.g. 15:1. Cite Can you help by adding an answer?

  • A Glossary of the most common mining terms

    May 04, 2018· Strip ratio: The ratio of tonnes removed as waste relative to the number of tonnes of ore removed from an open-pit mine. For example, a 3:1 stripping ratio means that mining one cubic metre of ore will require mining three cubic metres of waste rock.

  • 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

  • "Factorio": How to Build a Furnace/Smelting Setup

    Aug 06, 2020· Luckily the ratio of ore to plates is 1:1 for iron and copper, so we can plan around one belt in to one belt out. Looking at the "Factorio Cheat Sheet" web site, we can see that there is a commonality in numbers of furnaces. Because red belts are twice as fast as yellow and steel furnaces are twice as fast as stone, with this array, we can use

  • strip ratio of iron ore mines in Cayman Islands

    strip ratio of iron ore mines in Cayman Islands. The company operates four iron ore mines including the Tilden mine in Michigan and the Northshore United Taconite and Hibbing mines in Minnesota It serves integrated steel companies and steel producers The company was formerly known as Cliffs Natural Resources Inc and changed its name to Cleveland-Cliffs Inc in August 2017 The social and

  • Mining iron ore The Old School RuneScape Wiki

    Iron ore is an ore always in demand, due to its use in producing iron and steel bars via Smithing.There are many locations to mine iron ore, but one of the best members' places to mine iron for banking is Ardougne Monastery.It has six iron rocks total that are all very close to each other. Players can teleport there quickly with an Ardougne cloak, which offers infinite teleports, and then

  • Karara Iron Ore Mine Mining Technology Mining News and

    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 0.38:1 waste to ore stripping ratio. A trial mining project was carried out in December 2010 based on the Karara South and Karara East DSO

  • What level is iron most plentiful on? Discussion

    Apr 28, 2011· Iron is fairly evenly spread out from about ten blocks below sea level all the way to bedrock. I just dig all the way down to bedrock, then go back up about ten blocks and start digging. Might as well look for iron, diamond, coal, gold, and lapis at the same time. Also check out deep caves. You can usually just find it on the walls.

  • The world’s top 10 highest-grade copper mines MINING.COM

    While the copper market is gaining momentum, it is a good time to look at the copper mining champions in terms of copper grade in ore reserves. The world’s top 10 highest-grade copper mines

  • What layer is iron ore most common at? Survival Mode

    Apr 28, 2018· If you really only need iron I would just recommend caving since you can find tons of exposed iron ore in caves along with other goodies. If you want other resources aswell strip mining might be an option but the people who posted before me gave much advice in that direction.

  • Project Details Black Iron Inc.

    The life of mine strip ratio is estimated at 1:1 and average operating costs over the 17 years of operation are estimated at US$33/dmt FOB to produce the ultra high-grade 68% iron ore concentrate. The total capital expenditure to develop the mine, concentrator, infrastructure and tie-ins is estimated at US$452 million to produce an initial

  • Key Financial Ratios to Analyze the Mining Industry

    May 08, 2020· Average ROEs in the mining industry range between 5% and 9%, with the best-performing companies producing ROEs closer to 15% or more. The ratio is calculated by dividing net income by stockholders

  • Iron ore Wikipedia

    Iron ores are rocks and minerals from which metallic iron can be economically extracted. The ores are usually rich in iron oxides and vary in color from dark grey, bright yellow, or deep purple to rusty red. The iron is usually found in the form of magnetite (Fe 3 O 4, 72.4% Fe), hematite (Fe 2 O 3, 69.9% Fe), goethite (FeO(OH), 62.9% Fe), limonite (FeO(OH)·n(H 2 O), 55% Fe) or siderite (FeCO

  • Razorback Iron Project Magnetite Mines

    3.9 billion tonnes (JORC 2012) of iron ore Over 110 kilometres of unexplored strike 1,722 km 2 of surrounding tenements 100% owned by Magnetite Mines Limited. The Razorback High Grade Iron Ore Concentrate Project is an iron ore project in the western portion of the Braemar and is wholly owned and operated by Magnetite Mines Limited.

  • Key Financial Ratios to Analyze the Mining Industry

    May 08, 2020· Average ROEs in the mining industry range between 5% and 9%, with the best-performing companies producing ROEs closer to 15% or more. The ratio is calculated by dividing net income by stockholders

  • Project Details Black Iron Inc.

    The life of mine strip ratio is estimated at 1:1 and average operating costs over the 17 years of operation are estimated at US$33/dmt FOB to produce the ultra high-grade 68% iron ore concentrate. The total capital expenditure to develop the mine, concentrator, infrastructure and tie-ins is estimated at US$452 million to produce an initial

  • Karara Iron Ore Mine Mining Technology Mining News and

    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 0.38:1 waste to ore stripping ratio. A trial mining project was carried out in December 2010 based on the Karara South and Karara East DSO

  • 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 3:1 stripping ratio means that mining one cubic meter of ore will require mining three cubic meters of waste rock.

  • Iron Ore HowStuffWorks

    The majority of Earth's iron, however, exists in iron ore. Mined right out of the ground, raw ore is mix of ore proper and loose earth called gangue. The ore proper can usually be separated by crushing the raw ore and simply washing away the lighter soil.

  • Razorback Iron Project Magnetite Mines

    3.9 billion tonnes (JORC 2012) of iron ore Over 110 kilometres of unexplored strike 1,722 km 2 of surrounding tenements 100% owned by Magnetite Mines Limited. The Razorback High Grade Iron Ore Concentrate Project is an iron ore project in the western portion of the Braemar and is wholly owned and operated by Magnetite Mines Limited.

  • Minas-Rio Iron Ore Project, Rio de Mining Technology

    Nov 20, 2020· During its first phase of operation, the mine is expected to produce 26.5 million tonnes of ore per annum (mtpa). The initial ROM ore will be 56mtpa with a strip ratio of 0.4. Transporting iron ore to Açú Port. The iron ore is extracted and processed in the state of Minas Gerais and transported as slurry to Açú Port in the state of Rio de

  • What level is iron most plentiful on? Discussion

    Apr 28, 2011· Iron is fairly evenly spread out from about ten blocks below sea level all the way to bedrock. I just dig all the way down to bedrock, then go back up about ten blocks and start digging. Might as well look for iron, diamond, coal, gold, and lapis at the same time. Also check out deep caves. You can usually just find it on the walls.

  • The world’s top 10 highest-grade copper mines MINING.COM

    While the copper market is gaining momentum, it is a good time to look at the copper mining champions in terms of copper grade in ore reserves. The world’s top 10 highest-grade copper mines

  • What layer is iron ore most common at? Survival Mode

    Apr 28, 2018· If you really only need iron I would just recommend caving since you can find tons of exposed iron ore in caves along with other goodies. If you want other resources aswell strip mining might be an option but the people who posted before me gave much advice in that direction.

  • Iron processing Iron making Britannica

    Iron processing Iron processing Iron making: The primary objective of iron making is to release iron from chemical combination with oxygen, and, since the blast furnace is much the most efficient process, it receives the most attention here. Alternative methods known as direct reduction are used in over a score of countries, but less than 5 percent of iron is made this way.

  • Metal Mining Industry Valuation, Price to Earnings PE

    Metal Mining Industry Price to Earning ratio is at 54.47 in the 3. Quarter 2020 for Metal Mining Industry, Price to Sales ratio is at 3.85, Price to Cash flow ratio is at 9.94, and Price to Book ratio is 2.85 More on Metal Mining Industry Valuation

  • Iron ore tailings dry stacking in Pau Branco mine, Brazil

    Oct 01, 2016· The mining industry has seen several significant dam failures in recent years. Dam failures are associated with errors in design, implementation, operation, and monitoring (Azam, 2014, ).Dewatered stockpiling (dry stacking) is a safer alternative to tailings dams (Rico et al., 2008, ) for tailings disposal; however, this method has not yet been used in iron ore mines in Brazil, where

  • Dharmendra Pradhan hints at short-term ban on iron ore

    Nov 20, 2020· Domestic iron ore prices across grades has doubled from Rs 4,000 per tonne to Rs 8,000 per tonne on an average, causing a spike in the cost of