Stripping Ratio In Coal Mining

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.

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 order to extract a given amount of ore.

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 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.

In coal mining what is a good strip ratio - Wiki Answers What Is Stripping Ratio?a. Measures relative deposit depth. Q: How important is depth in surface mining? ...

Apr 22, 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.

contents 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

what is stripping ratio coal mining ppt. ... Calculating Stripping Ratios for Area Strip Mines Mnge 315 … you mine over the time Simple Stripping Ratios The 2D ...

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.

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 …

An automated form of underground coal mining ... Current Western Canadian open-pit coking coal mines typically operate with clean coal stripping ratios of ...

what is stripping ratio coal mining ppt. ... Calculating Stripping Ratios for Area Strip Mines Mnge 315 … you mine over the time Simple Stripping Ratios The 2D ...

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. 2. 3. 4. 5. 6. 7.

what is stripping ratio coal mining - Mining Solution . STRIPPING RATIO (S) - Coal Trading Blog. Jun 07, 2010 · Front Iron Ore Mine Demolition of Iron Ore with Breaker Dismantling of the Iron Ore Carrier Rocks And …

Productivity Changes in US Coal Mining-Resources for the Future. Labor productivity in U.S. coal mining increased at an average annual rate of slightly .. 3-1: Ratio of Longwall to Room-and-Pillar Labor Productivity Levels, .

SACMA Surface Strip Coal Mining Handbook_rev1.pdf - sacea This handbook on surface strip coal mining serves as a general introduction ..... company. Usually the first analysis is the calculation of a stripping ratio at which.

Apr 22, 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 …

Chapter 2: The Environmental Effects of Strip Mining – The Strip … EFFECTS OF. STRIP MINING A ll mining operations have a disruptive effect on the … so long as the ratio between the overburden and the coal seam, called the stripping ratio, …

Strip Ratio Coal ,Coal Surface. strip ratio indonesia Description : Mine closures in Indonesia''s Jambi highlight crunch 29 Nov 2012 By comparison, leading Indonesia producer PT Bumi Resource''s coal mi.....

Stripping Ratio(s) - Surface Mining | COAL MINING AND …. Types and definitions; What does a SR measure? What to use the SR for? On Terminology Terminology : Definition Coal Quality.

Stripping Ratio Considerations - Download as PDF File (.pdf), Text File (.txt) or view presentation slides online.

ABSTRACT: The economic stripping ratio used to define an economic mining block in an open pit coal mining situation is rationalised by considering the time value of money, and defining run of mine recovery and mining cost as dynamic variables dictated by the thicknesses, depths and number of seams within a mining block.

* Consider Capital Quarries , Rolla, at 25 m depth, SR = 0.5 b. To surface mine we need to remove some waste in addition to ore / coal c. SR measures how much waste needs to be removed so that a unit of ore/coal can be mined ...

Availability of Coal Resources for Mining ... 5 Availability of coal resources for mining ... The technological restrictions on surface mining are stripping ratio ...

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 order to extract some volume of ...

* Consider Capital Quarries , Rolla, at 25 m depth, SR = 0.5 b. To surface mine we need to remove some waste in addition to ore / coal c. SR measures how much waste needs to be removed so that a unit of ore/coal can be mined ...

stripping ratio coal mining comp. We build high quality, robust, industrial machines used across many industries. Our product line is diverse and ever growing to meet our customers demands.

Usually the first analysis is the calculation of a stripping ratio at which. Coal Mining Terms-Cline Mining Corporation. The volume of waste rock above and between coal seams in an open-pit mine is The clean coal stripping ratio is more indicative of a mine's performance as it. Technical | Oil Sands Mining | Surface Mining Techniques | Oil . …

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.

Coal Mining Terms - Cline Mining Corporation. Raw coal mined in open pits is often tumbled in large rotary screens where . The clean coal stripping ratio is more indicative of a mine's performance as it.

Chapter 2: The Environmental Effects of Strip Mining – The Strip … EFFECTS OF. STRIP MINING A ll mining operations have a disruptive effect on the … so long as the ratio between the overburden and the coal seam, called the stripping ratio, …

What is the maximum stripping ratio of open pit Diamond mines before considering going underground? ... The cost is purely driven by the cost of the mining fleet ...

Cline Mining Corporation • Projects • Mining Terms. Strip Ratio The stripping ratio is the most influential economic factor in the evaluation and planning of open-pit coal mines.

Mining 101 August 30, 2012 ... the mining ratio, is highly mine and coal reserve ... considered in the development of stripping ratios for a particular mine site and ...

CHAPTER 11 Mining Technology The Federal Coal Leasing Amendments Act of 1976 charged OTA to assess the feasibility of the use of deep-mining technology on

Effect Of Stripping Ratio In Coal Mining,Stripping ratio , - strip ratio in coal mining ,Stripping ratio - , the free encyclopedia , In mining, stripping ratio or strip ratio refers to the ratio of the volume of overburden (or waste material) required to , Powder River Basin: "200 year supply" of Coal Reserves Harder , When Powder River Basin ...

Surface/underground mine cost models - a variety of sizes/types: theoretical mining operations, flotation milling, carbon-in-pulp, heap leach & placer models.

So, the ratio of overburden: coal is 3300:150, or 22:1. This stripping ratio is higher than the 20:1 limit, so surface mining of the coal seam to this depth would not be economic.

calculate various stripping ratios for given situations (C, Ap) 3. explain the influence of stripping ratios on planning decisions (A, S) 4. assess the most economic method of mineability of a deposit by surface mining or underground mining from the limiting stripping ratio (A, S, E) 1.4 Stripping Ratio Stripping ratio is defined as the ratio of the …