Influence Of Striping Ratio On Open Cast Coal Mining

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OPEN CAST MINE PLANNING - Mining and Blasting

OPENCAST MINE PLANNING, DEPLOYMENT OF HEMM FOR OPTIMUM UTILISATION, TOTAL TECHNICAL PARAMETERS OF HEMM INCLUDING LIMITATIONS, & HAUL ROAD & ITS MAINTENANCE. P.D. RATHI Sr. Mining Engineer OPEN CAST MINE PLANNING Factors that influence planning: 1) Demand of coal. a. Countrywide demand b. Regional demand 2) Distribution of coal …

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.

Dragline Digging Methods in Australian Strip Mines - A …

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.

examples of simple open cast coal mining

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. Open cast 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. Get price

CHAPTER 11 Mining Technology - Princeton University

characteristics of the coal. The three surface mining techniques most widely used in the West are area strip, open pit, and terrace pit. Area Strip Area strip is the principal surface mining technique used in the United States. The tech-nique was perfected in the coalfields of …

What is stripping ratio in mining? - Quora

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...

Open Cast Mining Terminology - YouTube

Mar 22, 2018· open-cast mining is a surface mining technique of extracting minerals from the earth by their removal from an open pit.

Rock fragmentation control in opencast blasting ...

The dip of the coal seam is 1°–4° in northerly direction. The block has 491.8 Mt of coal reserves. In Turra and Purewa (bottom, top and combined) seams, the average stripping ratio is 1:3.76, i.e. 3.76 m 3 of overburden is to be removed for extraction of 1 t of coal. The mine is currently producing 14 Mt of coal …

What Is a Stripping Ratio? (with picture)

Dec 04, 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 ore.

What Is a Stripping Ratio? (with picture)

Oct 26, 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 ore.

factors affecting stripping ratio.in open cast mining

Reclamation of Areas Affected by Open-cast Mining in the North ... this century. The ratio of stripping to coal production is expected to reach 4.5 .... Open-cast mining causes significant changes in classical climatic factors and. More details » Get Price

of stripping ratio in coal mining

coal mining stripping ratio . Stripping Ratio as a Fundamental Ability to surface mine depends on the value of the ore being high enough to offset the cost of Overburden Removal Stripping Ratio determines relative amounts of each to be moved If coal generates a $5/ton earning and overburden costs 45 cents per cubic yard to …

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 …

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 …

Surface Coal Mining Methods in Australia

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 operating at higher stripping ratios ...

what is stripping ratio coal mining ppt

Influence Of Striping Ratio On Open Cast Coal Mining. what is stripping ratio coal miningGrinding Mill . formular for calculating strip ratio in mining Home» what is stripping ratio coal mining ppt » buyers of coal shearer rocker arm for coal mining » coal mining. Get Price And Support Online A geotechnical rationale for the design of South .

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.

ESTIMATION OF CAPITAL COSTS FOR ESTABLISHING COAL …

Open pit mining 8 1.4. Underground coal mining 9 1.4.1. Room and pillar 9 1.4.2. Longwall 12 ... Typical operating cost breakdown for strip coal mining in South ... influence of different mining methods on capital and operating costs,

Opencast Mining - an overview | ScienceDirect Topics

The open pit or open cast mining method is the obvious choice for a property with a wide area of mineralization exposed or existing close to the surface and continuing to greater depths. The open pit exposes the orebody from the surface by separate removal of ore and associated waste rocks.

Lecture 4 Calculating Stripping Ratios for Area Strip ...

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

effect of stripping ratio in coal mining | Solution for ...

Aug 31, 2012· 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, … In coal mining what is a good strip ratio – The Q&A wiki. 1. Overburden O/B 2. Coal / ore 3.

Surface Mining Animation - YouTube

Jan 20, 2014· See what Vermeer surface mining equipment can do for you. - Patented tilting capability - Vertical wall capability - Mine in layers - Selective piling - Sele...

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 …

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$.

v117n3a2 Factors and challenges affecting coal recovery by ...

rates of coal, relatively low stripping ratio, safety of the operation, and general environmental requirements. The geological model of an opencast pillar mining operation within the Witbank coalfield has indicated that some 30% of the coal in the no. 2 seam remains in pillars. The no. 4 and no. 1 seams are yet to be mined. Opencast pillar ...

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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.

Mining Terms - kau

Open Cast Mining . Open Pit Mining . Strip Mining . Quarry Mining . Placer Mining . Some Examples for Underground Mining . ... Stripping Ratio: is the ratio of a unit of waste material removed per similar unit of ore material removed. Toe: is the base of a bank bench or a slope.

COAL MINING MIDTERMS Flashcards | Quizlet

Open cast (strip) mining is a surface exploitation method, used mainly for coal and other bedded deposits; The removal of soil and rock (overburden) above a layer or seam (particularly coal), followed by the removal of the exposed mineral.

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…

Stripping Ratios: What are They and Why are They Important ...

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 ...