Determining Stripping Ratio - Basic Mining Techniques
04/04/2016· Stripping ratio simply refers to the amount of waste handled in order to recover certain amount of ore. It is mathematically expressed as the ratio of waste to ore. However a wide variety of units are used as well as indicated below:
Stripping Ratios: What are They and Why are They Important,
31/10/2018· A strip ratio, or stripping ratio, is an important measurement related to the open-pit mining process. It represents the amount of waste material, also known as overburden, that must be moved in...
Stripping ratio and pit limit - Basic Mining Techniques
26/07/2017· Extraction of mineral commodity that involves the removal of waste overburden prior to extraction of valuable ore involves determining the stripping ratio. Stripping ratio is expressed broadly as the ratio of waste to ore. It’s simply calculating how much waste has to be removed to expose how much of ore to be mined. Stripping ratio determines where the pit limit will be.
what is stripping ratio for mine - mon-plaisir-gourmand.fr
Stripping Method Of Mining. For example, a 3:1 stripping ratio means that mining one tonne of ore will require mining three tonnes of waste rock.Strip Mining for Coal YouTube,Sep 11, 2015· Almost 20 years since the strip mine began and it is still
(PDF) Stripping Ratios, Pit Limits & Cutoff Grade,
The stripping ratio (SR) refers to the amount of waste that must be removed for a given quantity of ore in open pit mining. It is most commonly expressed as: Waste (tons) SR = Ore (tons) A wide variety of other units are used as well. In strip coal mining
Understanding Iron Ores and Mining of Iron Ore – IspatGuru
03/04/2015· The stripping ratio is the amount of overburden and waste that has to be handled for each unit of ore mined. It is described as the unit of the overburden that must be removed for each unit of crude ore mined. Stripping ratios increase with the quality of the ore being mined and cost factors related to beneficiation and transportation.
Surface mining planning and design of open pit mining
09/01/2016· 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. • Syncrude Tar Sands: SR = 1.2 - 1.4 • Highland Valley: SR
Understanding When Costs Associated with Overburden and,
08/10/2020· Where the stripping cost to provide “future ore” and “current ore” cannot clearly be separated, the stripping cost may be allocated by applying a (relevant) production measure and an average strip ratio over the component’s life. A relevant production measure might be the amount of ore mined or “units of production” – based on the expected recoverable metal in the
(PDF) Surface Mine Design - ResearchGate
It should be noted here that a stripping ratio of 2 to1 means t hat there is twice as much waste rock mined as mineral (ore, coal, etc.). Two types of methods may be used in surface mining,
(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 SME’s “Surface Mining” were specifically referenced Stripping Ratio as a Fundamental • Ability to
3.2.5: Instantaneous Stripping Ratio | ABC 123: Testing,
02/03/2010· 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 and/or waste, is removed from a pit wall. This section presents the ISR calculation for
what is stripping ratio for mine - mon-plaisir-gourmand.fr
Stripping Method Of Mining. For example, a 3:1 stripping ratio means that mining one tonne of ore will require mining three tonnes of waste rock.Strip Mining for Coal YouTube,Sep 11, 2015· Almost 20 years since the strip mine began and it is still
Understanding Iron Ores and Mining of Iron Ore – IspatGuru
03/04/2015· Stripping ratios increase with the quality of the ore being mined and cost factors related to beneficiation and transportation. The economic stripping ratio varies widely from mine to mine, depending upon a number of factors. In the case of direct shipping ores, it may be as high as 6:1 or 7:1. In the case of low grade ore , a stripping ratio,
Surface mining planning and design of open pit mining
09/01/2016· 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. • Syncrude Tar Sands: SR = 1.2 - 1,
(PDF) Surface Mine Design - ResearchGate
It should be noted here that a stripping ratio of 2 to1 means t hat there is twice as much waste rock mined as mineral (ore, coal, etc.). Two types of methods may be used in surface mining,
Underground Mining Methods and Equipment
employed when the depth of the deposit and/or the waste to ore ratio (stripping ratio) are too great to commence a surface operation. Once the economic feasibility has been verified, the most appropriate mining methods must be selected according to the natural/geological conditions and spatial/geometric characteristics of mineral deposits. Considerations include: 1.
Understanding When Costs Associated with Overburden and,
08/10/2020· Where the stripping cost to provide “future ore” and “current ore” cannot clearly be separated, the stripping cost may be allocated by applying a (relevant) production measure and an average strip ratio over the component’s life. A relevant production measure might be the amount of ore mined or “units of production” – based on the expected recoverable metal in the
What Is Open-Pit Mining? (with picture) - Info Bloom
The stripping ratio in open-pit mining is important because the profitability of that particular mining venture hinges on the ability of the company to gain more from the extraction process than what it expends in order to obtain access to the material. Usually, the open pit-mining system is one that is based on simplicity due to the fact that it merely requires the shifting of
LAND DEGRADATION DUE TO MINING AND ITS REMEDIAL
Keywords- mining; land; stripping ratio; reclamation 1. INTRODUCTION Mining activity exerts a long lasting impact on landscape, eco-system and socio-cultural-economic considerations. It is noteworthy to mention that the actual land mass available to man kind is just 30% of total global surface area. India’s land area is about 2-3% of the global land area, where as it supports
what is stripping ratio for mine - mon-plaisir-gourmand.fr
Stripping Method Of Mining. For example, a 3:1 stripping ratio means that mining one tonne of ore will require mining three tonnes of waste rock.Strip Mining for Coal YouTube,Sep 11, 2015· Almost 20 years since the strip mine began and it is still
strip ratio in coal mining
Stripping Ratios: What are They and Why are They . 31/10/2018 A strip ratio, or stripping ratio, is an important measurement related to the openpit mining process It represents the amount of waste material, also known as overburden, that must be moved in Stripping ratio Wikipedia,In surface mining, stripping ratio or strip ratio refers to the amount of waste (or overburden)
Effect Of Stripping Ratio In Coal Mining
04/07/2007· How Is Stripping Ratio Calculated Answerstoall. Jan 30, 2021 What is stripping ratio in coal mining 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. Get Price
what is stripping ratio for mine - razoriteolivedale
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
Strip Mining - an overview | ScienceDirect Topics
In case of a deep-seated bedded deposit within permissible stripping ratio the overburden is removed by opening successive and progressive benches. It continues till sufficient area over the ore is exposed. The multiple seam mining is done by operating first pair of overburden and coal bed at a time and followed by second and third pairs in sequence. Finally, the total overburden
What Is Open-Pit Mining? (with picture) - Info Bloom
The stripping ratio in open-pit mining is important because the profitability of that particular mining venture hinges on the ability of the company to gain more from the extraction process than what it expends in order to obtain access to the material. Usually, the open pit-mining system is one that is based on simplicity due to the fact that it merely requires the shifting of
LAND DEGRADATION DUE TO MINING AND ITS REMEDIAL
Keywords- mining; land; stripping ratio; reclamation 1. INTRODUCTION Mining activity exerts a long lasting impact on landscape, eco-system and socio-cultural-economic considerations. It is noteworthy to mention that the actual land mass available to man kind is just 30% of total global surface area. India’s land area is about 2-3% of the global land area, where as it supports
7.3.2: Contour Mining | ABC 123: Testing Site / Course
03/07/2010· Mining will proceed by advancing into the hillside until reaching the break-even stripping ratio. At this point, the highwall will remain. Under certain conditions, we may choose to take advantage of the exposed coal seam, and develop an underground mine or practice highwall mining, which will be discussed later in this lesson. Now, let’s take a look at a schematic view
A Glossary of the most common mining terms - Finfeed
04/05/2018· For example, a 3:1 stripping ratio means that mining one cubic metre of ore will require mining three cubic metres of waste rock. Sulphide ore: Sulphide ores are generally found hundreds of metres below surface, and generally require underground mining infrastructure. The main benefit to sulphide ores is that they can be concentrated using a simple physical
Karara Iron Ore Mine - Mining Technology | Mining News and,
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 deposits. The Karara East was bought into production in the same month. First shipment of hematite from the mine occurred in March 2011. The first commercial shipment of 58t of hematite direct shipping ore occurred in
