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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...

Roll Crushers, What Are These Machines

Roll crushers have a theoretical MAXIMUM reduction ratio of 4:1 If a 2 inch particle is fed to the roll crusher the absolute smallest size one could expect from the crusher is 1/2 inch Roll crushers will only crush material down to a minimum particle size of about 10 Mesh (2 mm)...

A Glossary of the most common mining terms

May 04, 2018· Strip ratio: The ratio of tonnes removed as waste relative to the number of tonnes of ore removed from an open-pit mine For example, a 3:1 stripping ratio means that mining one cubic metre of ore will require mining three cubic metres of waste rock...

Opencast Mine Coal Crushing and Screening Plant

Apr 16, 2013· https://cementcrusher China largest Coal Mine Crushing Plant, 3000t/h processing capacity, located in Xinjiang, China...

IFRS First Impressions

average life-of-mine stripping ratio approach, while others expense such costs as incurred, or follow the US GAAP approach of allocating all production stripping costs to inventory produced in the period For companies that currently expense these costs, the interpretation will mean not only a change in , for example coal...

What is Roller crusher?

Mar 07, 2019· Contact Person:MrZhao 0086-13523465141 The roller crusher is suitable for crushing medium-hard materials such as limestone, slag, coke, coal and other materials in the industrial sectors such as cement, chemical, electric power, metallurgy, build....

An approach towards ascertaining open

of OP mining is the Stripping Ratio (SR), by which is on the whole meant the volume of , In relation to the practice of surface mining of coal deposits, it is common to describe the SR in terms of m3 of waste per ton of the mineral, but in operating ore deposits the , An approach towards ascertaining open-pit to underground transition depth ....

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? 1st Jan, 2020 Helal Haseeb Al-Azhar University...

Surface Mining Methods and Equipment

Highwall mining is a coal mining method for recovery of outcropped coal by mechanical excavation without removal of overburden A continuous miner with single or multiple , Mining method, surface mining, open pit mining, open cast mining, placer mining, solution mining, leaching, stripping ratio, mining machinery, excavation, cutting, grading ....

CHAPTER 11 Mining Technology

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...

In coal mining what is a good strip ratio

Jul 29, 2010· It can be either one, depending on how the mining is conducted In past years, areas were strip mined, and waste materials from the mining were left to pile up- in many cases, unsafely...

What is break even stripping ratio

Apr 14, 2014· Yes, a 3:1 stripping ratio means that mining one cubic meter of ore will require mining three cubic meters of waste rock Asked in Business & Finance, Economics, Business Accounting and ,...

Curragh Coal Mine

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...

Revuboé Coal Mine, Tete

The initial operations will be performed at Chipanga seam with the aim to achieve higher coal recovery with a lower strip ratio The coal handling and processing plant at the mine will have a processing capacity of 24,000t per hour It is estimated to process approximately 17 million tonnes of coal ,...

What is stripping ratio in mining?

Jul 25, 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....

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