Of Stripping Ratio In Coal Mining

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.

Get Price

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. It represents the amount of waste material, also known as overburden, that must be moved in

Get Price

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

Get Price

What Is a Stripping Ratio? (with picture)

26/10/2019· 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

Get Price

How to calculate stripping ratio?

The common strip ratio for coal mining is BCM per ton of coal. Is this coal in situ or run of mine? Any answers? Can you help by adding an answer? Answer. Add your answer. Related Publications. A

Get Price

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

Get Price

Basic Mining Techniques : Stripping ratio and pit limit

26/07/2017· The units for stripping ratios can vary and usually depends on the geological properties of the deposit and the commodity mined. It can be expressed in tonnes (t), or cubic meters (m 3).Usually for coal, cubic meters (m 3) or tonnes (t) are used.However, for hard rock mines where the geology is usually complex with the presence of various rock types, tonnage (t) is usually preferred.

Get Price

what is stripping ratio coal mining Mine Equipments

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?? *

Get Price

Surface Coal Mining Methods in Australia InTech

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

Get Price

Cline Mining Mining Company

The Cononish Gold and Silver Mining Project at Loch Lomond. The approval for the mining site was received by SGZ Cononish Ltd, a subsidiary incorporated by Scotgold Resources Ltd in June 2017. The subsidiary company undertook to complete the commitments and planning obligations stipulated as conditions to the approval of the 5-option contract

Get Price

Whats the average stripping ratio of open pit mines around

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.

Get Price

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. They were used on the first

Get Price

Coal mining Wikipedia

When coal seams are near the surface, it may be economical to extract the coal using open cut (also referred to as open cast, open pit, mountaintop removal or strip) mining methods. Opencast coal mining recovers a greater proportion of the coal deposit than underground methods, as more of the coal seams in the strata may be exploited. This equipment can include the following: Draglines which

Get Price

What is stripping ratio in mining? Quora

25/07/2018· 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 wil...

Get Price

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.

Get Price

Lecture 4 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 SMEs Surface Mining were specifically referenced Stripping Ratio as a Fundamental

Get Price

U Optimal production rates in opencast coal mining: A

The mining rate can refer to coal extracted per annum or to the waste stripped per annum. A mining practice in which the higher quality coal is mined first in the mine life. This generally creates higher revenue streams early in the operation but can have limiting consequences later on. The product coal produced according to a customer’s

Get Price

mining engineering: STRIPPING RATIO (S)

6/06/2010· * Thus in coal SR is the number of BCM of waste that needs to be removed to uncover 1 t of coal * Some applies in other bedded deposits. b. Ore miners measure both waste and ore in tons or tonnes. Definition of ore/waste changes! * Thus in ore SR is the number of tonnes of waste that need to be removed to uncover one tonne of ore. More Complications. a. Units in use differ between

Get Price

Curragh Mine, Queensland Mining Technology Mining News

Curragh is an open-pit coal mine located 14km north-west of the town of Blackwater in the bowel basin of Central Queensland, Australia. The mine is operated by Wesfarmers Curragh, which bought the property from Stanwell in June 2000. The mine covers an area of 12,600ha and has an annual production capacity of 7Mt. In November 2009, Wesfarmers

Get Price

India Coal: Stripping Ratio

India’s Coal: Stripping Ratio data was reported at 2.330 % in Mar 2015. This records an increase from the previous number of 2.230 % for Mar 2014.

Get Price

(PPT) Calculating Stripping Ratios for Area Strip Mines

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 Your Turn • Use What You Have Learned About Calculating

Get Price

Can Indonesia's coal mines maximise strip ratios and boost

16/12/2016· The declining trend in strip ratios for Indonesia's coal mines have allowed producers to survive in periods of lower coal prices through reduction in production costs and margins. However, producers are likely to have sterilised coal and jeopardised future coal reserves with continuous mining in lower strip areas. Our analysis suggests that the top 16 producers in Indonesia has been able to

Get Price

Dragline Digging Methods in Australian Strip Mines A Survey

Coal Operators' Conference Faculty of Engineering and Information Sciences 1998 Dragline Digging Methods in Australian Strip Mines A Survey H. Mirabediny University of Wollongong E. Baafi University of Wollongong, [email protected] Research Online is the open access institutional repository for the University of Wollongong. For further

Get Price

COAL Trollope Mining Services

HCI KHUSELA PALESA MINE Gauteng. The Palesa Coal Mine, located 37 km North of the town Bronkhorstspruit, is the largest of the two HCI Coal Mines. Operations will ultimately comprise of opencast mining of coal 380 000 T/MTH @ strip ratio of 2.3 M3/T. The opencast mining scope of work includes ongoing rehabilitation. This operation is unique

Get Price

South African Coal XMP Consulting

• Detailed location (coordinates) and farms comprising each coal mine; • Main shareholders of each coal mine; • Status of each coal mine (in production/ greenfield or exploration stage); • Mining method (opencast/underground), average stripping ratio for opencast mines;

Get Price

CHAPTER 11 Mining Technology Princeton University

remove the overburden in strip mining, varies in size from 10 to over 200 cubic yards. Many Eastern mines use stripping shovels instead of draglines; and stripping shovels currently are being used successfully at several strip mines in the West such as the Rosebud Mine in the Montana portion of the Powder River basin which produces Federal coal.

Get Price

Stripping Ratio Calculation In Mining

what is stripping ratio 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 in order to extract some volume of . Get Price And Support Online; stripping ratio in coal mining crusherasia

Get Price

Overburden Removal Surface Mining SlideShare

21/07/2017· However, in hard rock mining to define the stripping ratio in the example of Fig. 1, consider mining of the ore ABC at depth h. Having defined the slope angle at this mine section, the waste (overburden) section AICD must be re- moved. The ratio of this overburden stripped to mine the ore is known as the average stripping ratio (SR). Volume

Get Price

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

Get Price

formular for calculating strip ratio in mining

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 Read More. Lecture 4 Calculating Stripping Ratios for Area Strip Mines.ppt . Calculating Stripping Ratios for Area Strip Mines “Elements of Practical Coal Mining” and SME's “Surface Mining” were The Coal Area

Get Price
New Holland Granite Grinder Screens Limestone Crusher Device

Related Articles