# Coal Mining Stripping Ratio

## Stripping Ratios: What are They and Why are They Important?

A strip ratio, or stripping ratio, is an important measurement related to the open-pit mining process.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 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.

## What Is a Stripping Ratio? (with picture) - wisegeek

Nov 05, 2018 · 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.what is stripping ratio coal mining - Mine Equipments,stripping ratio (mining) -- Encyclopedia Britannica stripping ratio (mining),The topic stripping ratio is discussed in the following articles: determination of mining methods. TITLE: coal mining .Surface Strip Coal Mining Handbook - sacea.org.za,1 introduction to surface strip coal mining 1.1 fundamental concepts and definitions 2 1.2 surface coal mining 5 1.3 production cost and stripping ratio analysis 8 1.3.1 stripping ratio for multiple seams 11 1.4 basic profit function analysis 13 2 geology and exploration 2.1 geology of south african coal

## Stripping Ratios, Pit Limits & Cutoff Grade Optimization,

In strip coal mining operations, the following are sometimes seen: Overbuden Thickness (ft) Overburden (yd 3 ) SR = SR = Coal Thickness (ft) Coal (tons) Stripping Ratios Instantaneous stripping ratio: The stripping ratio for a given push back Overall stripping ratio: The stripping ratio for the total amount of material removed.Lecture 4 Calculating Stripping Ratios for Area Strip,,The Coal Area Strip Mine Formula • Strip Ratio = OB Thickness (in ft) * 11.11/ 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 .1 4 Stripping Ratio | Ratio | Surface Mining - Scribd,1.4 Stripping Ratio Stripping ratio is defined as the ratio of the Overburden/Cover Rock / Waste Rock to the ore body. The various stripping ratios that are used in surface mining are the following: 1.

## Cline Mining Corporation • Projects • Mining Terms

The clean coal stripping ratio is more indicative of a mine’s performance as it includes the expected performance of the mine’s processing plant. Current Western Canadian open-pit coking coal mines typically operate with clean coal stripping ratios of between 7 and 8 to 1.In coal mining what is a good strip ratio - answers,Coal mining is good because it is used to get a very important natural resource, coal. Coal is used in many things and without coal mining we could not do those things.stripping ratio in coal mining - crusherasia,coal mining stripping ratio, stripping ratio encyclopedia. moolarben coal mine yancoal. the low life of mine strip ratio of 3.3 and modern 13.5mtpa capacity What is the Difference between Strip mining

## strip ratio in coal mining - Mine Equipments

Stripping ratio - Wikipedia, the free encyclopedia In mining, stripping ratio or strip ratio refers to the ratio of the volume of overburden (or waste material) required to be handled inStripping Ratios, Pit Limits & Cutoff Grade Optimization,,In strip coal mining operations, the following are sometimes seen: Overbuden Thickness (ft) Overburden (yd 3 ) SR = SR = Coal Thickness (ft) Coal (tons) Stripping Ratios Instantaneous stripping ratio: The stripping ratio for a given push back Overall stripping ratio: The stripping ratio for the total amount of material removed.stripping ratio in coal mining - minemining,Stripping ratio - Wikipedia, the free encyclopedia In mining, stripping ratio or strip ratio refers to the ratio of the volume of overburden (or waste material) required to be handled in

## Cline Mining Corporation • Projects • Mining Terms

The clean coal stripping ratio is more indicative of a mine’s performance as it includes the expected performance of the mine’s processing plant. Current Western Canadian open-pit coking coal mines typically operate with clean coal stripping ratios of between 7 and 8 to 1.formular for calculating strip ratio in mining,Optimal production rates in opencast coal mining - University of . Nov 15, 2011 The adjustment factor can be calculated as per equation 1, .. in the saleable strip ratio calculation dictating the preliminary mine1 4 Stripping Ratio | Ratio | Surface Mining - Scribd,BESR helps in determining the pit limit. Example: Selling cost of coal per te : Rs 2500/Mining and preparation cost per te: Rs 500/Overburden Handling cost per cubic meter: Rs 100/- Where.Calculate the BESR. Instantaneous stripping ratio (ISR) In case of coal deposits. Limiting stripping ratio (LSR) In case of Coal deposits. 2. . ISR helps in: 1.

## Break-even stripping ratio | Britannica

In coal mining: Contour strip mining If the break-even stripping ratio remains favourable, further cuts into the hillside will be made. Otherwise, if there are sufficient reserves under the knob of the hill, the coal may be recovered by underground mining or by augering.Stripping Ratio Calculation In Mining - cz-eu,Stripping ratio - Wikipedia, the free encyclopedia In mining, stripping ratio or strip ratio refers to the ratio of the volume of overburden (or waste material) required to be handled inAvailability of Coal Resources for Mining in Illinois,9 Availability of coal resources in the Shawneetown Quadrangle 15 10 Thickness of the Herrin Coal, Shawneetown Quadrangle 16 11 Depth of the Herrin Coal, Shawneetown Quadrangle 17 12 Stripping ratio of the Herrin Coal, Shawneetown Quadrangle 18 13 Availability of the Herrin Coal for surface mining, Shawneetown Quadrangle 20

## Mining 101 | West Virginia Coal Association

The typical method of assessing surface mining economics for a coal seam is a calculation of overburden (native rock and soil above a coal seam) moved per clean ton of coal produced, commonly referred to as “mining ratio”. The higher the mining ratio (or more overburden moved per clean coal ton), the higher the cost of producing coal.what is stripping ratio coal mining crusher - educationcare,Stripping ratio . 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 volume of...Strip Mining for Coal - YouTube,Sep 11, 2015 · Almost 20 years since the strip mine began and it is still going strong here in Stellarton, Nova Scotia. In another five or six years time the mining should be complete and will mark the end of,

## Stripping Ratio – Defined Term

Stripping Ratio. as defined in Glossary of Mining Terms. by Illinois Department of Commerce and Economic Opportunity. The unit amount of overburden that must be removed to gain access to a similar unit amount of coal or mineral material. 35 0. Share. Similar or Related Terms. Statistics. 100. Characters. 22. Words. 57.61.Stripping Ratio Calculation In Mining,Stripping ratio coal mining comp – Customized services Stripping ratio coal mining comp.,Usually the first analysis is the calculation of a stripping ratio atCHAPTER 11 Mining Technology - Princeton University,tion rate of the mine. After the coal has been mined from the bottom of the box cut, the overburden covering the next strip of coal is removed and placed in the void left by the mining of the preceding strip of coal. Mining Federal mines, and

## Coal Mining Stripping Ratio - nnguniclub

strip ratio in coal mining. strip ratio in coal mining – Grinding Mill China. Revuboè Coal Mine, Tete - Mining Technology. The initial operations will be performed at Chipanga seam with the aim to achieve higher coal recovery with a lower .iron ore mining stripping ratio - acherishedbirth,Apr 28, 2018 · Nickel Ore, South Africa Nickel Ore Suppliers Directory on iron ore mining stripping ratio Fresh Fruits and Vegetables,Rare Earth Mineral,Ferro Alloys,Food Products,Nut and Seeds Supplying Chromium Nickel Iron sheet/plate /strip inconel 625.break even ratio for australia coal mining - habitart,coal mining stripping ratio - The break-even stripping ratio is a function of ore value and the costs involved. most popular topics.,australia coal mining stripping ratio Information & Research . Free Quote. pitopen pit mining of coal and break even point - .za.

## In coal mining what is a good strip ratio - Inbum.Net

b. To surface area mine we have to remove some waste materials furthermore to ore / coal c. SR measures just how much waste must be removed to ensure that a device of ore/coal could be mined * This implies “relative depth” source : coal-mining-details.co.cc See also: In coal mining exactly what is a good strip ratio External links: Youtube,what is stripping ratio coal mining ppt - Grinding Mill China,After coal comes out of the ground, it typically goes on a conveyor belt to a preparation plant that is located at the mining site. The plant cleans and processes coal to remove dirt, rock, ash, sulfur, increasing the heating value of the coal.What is the maximum stripping ratio of open pit Diamond,,A high grade orebody can support a high stripping ratio. 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,

## Current State of the Coal Industry in Wyoming - wyogeo.org

WYOMING COAL MINE QUALITY Mine Names Moisture %(As received) 2013 state mine inspector production (tons) Employees (2013) Ash % (As received) Sulfur % (As received) Stripping Ratio (bank cubic yards/ton) 10. NARM (North Antelope Rochelle Complex Mines) 111,005,549 1,340 3.88-4.28 0.2 3:1 to 2:1 11. Rawhide Mine 14,246,329 203 0.37 1.6 12.Modern Coal Mining Methods - Alison,Modern Coal Mining Methods Text Version Once the geological data gathered during the exploration phase has been evaluated, geologists will estimate the quality and quantity of coal present.Chapter 2: The Environmental Effects of Strip Mining - The,,This process continues along parallel strips of land so long as the ratio between the overburden and the coal seam, called the stripping ratio, makes it economically feasible to recover coal. Mining may cease in a particular area, for example, where the coal seam becomes thinner or where the seam dips further below the surface.