what is stripping ratio coal mining ppt

Stripping Ratios: What are They and Why are They

Stripping ratios aren’t often discussed, but they can be an early and important indicator for mining projects. Here’s what investors should know about them. A strip ratio, or stripping ratio

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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

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Lecture 4 Calculating Stripping Ratios for Area Strip

Lecture 4 Calculating Stripping Ratios for Area Strip Mines Free download as Powerpoint Presentation (.ppt), PDF File (.pdf), Text File (.txt) or view presentation slides online. bREAK EVEN STRIPPING RATIO

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what is stripping ratio coal mining crusher

Surface mining methods835 Кб. Typical examples of this type of mining are the larger tonnage coal mining operations inmine using an in-pit crusher and conveyor and waste is tipped directly as envisaged in a terrace mining operation).processing plant on surface, at a rate of 1,22mt per month (ore) at a stripping ratio of 3:1.

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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.

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What Is a Stripping Ratio? (with picture)

2019-10-26· 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 waste material that must be moved in order to reach a certain ratio of

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strip ratio in coal mining Mine Equipments

Mining Roy Hill The Roy Hill Mine will have a mine life of more than 20 years and adopt an drill and blast, truck and excavator bulk mining method with an average strip ratio of 4 The quasi strip mining approach is similar to that used in coal mines, where

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In coal mining what is a good strip ratio Answers

2010-07-29· 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. They were used on the first

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what is stripping ratio coal mining ppt Grinding Mill

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. During this coal processing, the used industrial equipment can be called coal processing equipments.

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Stripping Ratio Coal Mining Comp greenrevolution.org.in

stripping ratio coal mining comp. Member Directory Nevada Mining Association. 3M Company A recognized leader in research and development, 3M produces thousands of

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Stripping Ratio Coal Mining Comp greenrevolution.org.in

stripping ratio coal mining comp. Member Directory Nevada Mining Association. 3M Company A recognized leader in research and development, 3M produces thousands of

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Lecture 4 Calculating Stripping Ratios for Area Strip

Lecture 4 Calculating Stripping Ratios for Area Strip Mines Free download as Powerpoint Presentation (.ppt), PDF File (.pdf), Text File (.txt) or view presentation slides online. bREAK EVEN STRIPPING RATIO

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In coal mining what is a good strip ratio Answers

2010-07-29· 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. They were used on the first

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Mining Terms kau

Strip Mining . Quarry Mining . Placer Mining . Some Examples for Underground Mining . Important Terms for Surface Mining . Open Pit Mine (metals) Bench: is a ledge which forms a single level of operation where ore and waste are excavated. Berm: is a horizontal shelf or ledge built in to a sloping wall of an open pit or quarry for protection under level. High Wall: is an unexcavated face or

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what is stripping ratio coal mining ppt Grinding Mill

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. During this coal processing, the used industrial equipment can be called coal processing equipments.

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Surface mining Wikipedia

"Strip mining" is the practice of mining a seam of mineral, by first removing a long strip of overlying soil and rock (the overburden). It is most commonly used to mine coal and lignite (brown coal). Strip mining is only practical when the ore body to be excavated is relatively near the surface.

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CHAPTER 11 Mining Technology Princeton University

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 leased areas. With the passage of the Sur-face Mining Control and Reclamation Act of 1977 congressional interest in the study of deep underground mining technology shifted

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Basics of openpit mining SlideShare

2012-03-13· What is Opencast Mining• Opencast mining is also known as Open pit mining, Open cut Mining, Surface or Strip Mining.• The coal upto economical depth will be excavated by OC Method.• The current operating depth of OC mines in SCCL is about 200m and SCCL proposed to operate OC mines upto a depth of 420m. Ex: MNG OC II Extension Project

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Coal mining Choosing a mining method Britannica

Coal mining Coal mining Choosing a mining method: The various methods of mining a coal seam can be classified under two headings, surface mining and underground mining. Surface and underground coal mining are broad activities that incorporate numerous variations in equipment and methods, and the choice of which method to use in extracting a coal seam depends on many

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Surface Coal Mining Methods in Australia

Surface Coal Mining Methods in Australia 5 2. Open cut mining methods strip mining Large-scale open cut coal mining operations commenced in Australia in mid 1960s and since then there has been significan t developments in this method of mining. The mines are now operating at significantly higher annual tonnages, growing deeper, more complex and

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Surface Coal Mining Methods in Australia

Surface Coal Mining Methods in Australia 5 2. Open cut mining methods strip mining Large-scale open cut coal mining operations commenced in Australia in mid 1960s and since then there has been significan t developments in this method of mining. The mines are now operating at significantly higher annual tonnages, growing deeper, more complex and

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what is stripping ratio coal mining ppt Grinding Mill

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. During this coal processing, the used industrial equipment can be called coal processing equipments.

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stripping ratio coal mining comp Mine Equipments

Frequently Asked Questions Semirara Mining Corporation ROM or Run of Mine Coal is the raw coal that is mined out of the mine pit. moved in cubic meters for every metric ton of coal produced, such that a 10:1 strip ratio...Our present permit grants the company the exclusive right to explore them .

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Whats the average stripping ratio of open pit mines

Even if there was an average of ALL open pit mines that would not offer any knowledge regarding open pit mining. The stripping ratio in a mine is chosen based on economics.

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Coal Mining: From the Ground to powering Your Home

Strip Mining. Removal of large strips of overlying rock and soil to reveal coal. Open-Pit Mining. Removal of rock and soil creating a vast pit where coal can be extracted. Mountaintop Removal Mining. Removal of mountain tops with explosives. Land made flat after reclamation. Highwall Mining. A continuous miner cuts holes horizontally into the

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1.1 PHASES OF A MINING PROJECT elaw.org

of overburden generated by mining is enormous. The ratio of the quantity of overburden to the quantity of mineral ore (called the ‘strip ratio’) is usually greater than one, and can be much higher. For example, if a proposed mining project involves the extraction of 100 million metric tons of mineral ore, then the proposed mining project

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pwc 2012 Americas School of Mines

Notes: Strip Ratio Mining Methods 27 Mistakes are often made when computing the strip ratio. It’s all in the words and you have to watch the flow of material and how it is classified. For example, according to liming McMoran’s 2007 10K filing, the concentrator is capable of processing 75,000 metric tons per day of primary sulfide ore and

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Strip Mining an overview ScienceDirect Topics

Auger mining can be used for coal outcrops on a hillside or in strip mines where the stripping ratio has become too high to be economical for strip mining (Schobert, 1987). In auger mining, an auger drills it way into the face of the coal seam, and the coal is removed via conveyor and loaded directly onto a

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Room and pillar mining Wikipedia

Room and pillar mining was one of the earliest methods used, although with significantly more man-power. The room and pillar system is used in mining coal, gypsum, iron, and uranium ores, particularly when found as manto or blanket deposits, stone and aggregates, talc, soda ash and potash.

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Cost Models of Theoretical Mining Operations CostMine

This mine is an open pit mine producing 5,000 tonnes ore and 5,000 tonnes waste per day. Rock characteristics for both ore and waste are typical of those of granite or porphyritic material. Operating conditions, wage scales, and unit prices are typical for western U.S. mining operations. All costs listed are in 2012 US$. The key design criteria

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