dealing with waste material in open cast coal mines

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HANDLING OF MISFIRES IN MINES – Mining and Blasting

nbsp 0183 32 HANDLING OF MISFIRES IN MINES Dealing with it is potentially most dangerous activity 1 INTRODUCTION Misfire means the complete or partial failure of a blasting charge to explode as planned The explosive or pyrotechnical products that remain in the

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Surface mining planning and design of open pit mining

Surface mining planning and design of open pit mining 1 This material is intended for use in lectures presentations and as handouts to students and is provided in Power point format so as to allow customization for the individual needs of course instructors

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journals sagepub com home adt coagulant for dust suppression in open cast coal mines

control during the processes of stockpiling and transporting coal in open cast mines Dixon Hardy et al 2008 used the waste from refineries to prepare a specific product for dust prevention however although they achieved some very good results the product

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Open pit mining

Open pit mining Open pit mining is the process of mining a near surface deposit by means of a surface pit excavated using horizontal benches 5 The shape of the excavation or mine vary depending upon the size and shape mineral matter 6

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Top 10 Ways to Make Mines More Environmentally

1 Closing illegal and unregulated mines In context with enforcing regulations and maintaining steadfast legislation regarding a mine s behavior and processes the strict and swift closing of illegal or unregulated mining activity will set an environmental precedent within

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ab0cd Sub sectoral Environmental and Social Guidelines Mining

ab0cd Sub sectoral Environmental and Social Guidelines Mining Open Cast Mining Underground Sub Sector Environmental amp Social Guidelines Page 1 PROCESS DESCRIPTION This guideline covers the open cast mining of ore bearing rock including coal It

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Item 5

13 The following is an assessment of the current site conditions of the Ponesk open cast site against the Policies of the East Ayrshire Opencast Coal subject Plan 14 Policy MIN 4 The current unrestored site fails to accord with this policy as the

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Basics of an open pit mine

Open pit mines can be used in coal mining and they are used extensively in quot hard rock quot mining for ores such as metal ores copper gold iron aluminum and many minerals In a open pit coal mine the pit bottom would be the bottom mined coal seam elevation since it is usually feasible to extract multiple seams when surface mining coal

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Mining Waste

Of that hard coal mining waste comprised 53 3 and metal ore copper mining and processing 46 7 The area of each dump ranges from about 10 to gt 200 ha for large central dumping sites where waste from several mines has been disposed

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Characterization of Mine Waste and Acid Mine Drainage

to the classification of waste rocks for cover systems preventing AMD is reviewed in the context of sustainable mining 2 Experimental Methods Six types of waste rocks were collected from three open cast coal mines in Indonesia in addition to a crystalline

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Opencast Mining

The open pit or open cast mining method is the obvious choice for a property with wide area of mineralization exposed or exists close to the surface and continues to greater depth The open pit is opening the orebody from the surface by separate removal of ore and associated waste rocks

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Reading Open Pit Mining Geology

Open cast mines are dug on benches which describe vertical levels of the hole These benches are usually on four to sixty meter intervals depending on the size of the machinery that is being used Many quarries do not use benches as they are usually shallow

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Durham 1970 s

nbsp 0183 32 County Durham Dealing with environmental and pollution problems Illustrates problems of slag heaps from coal pits and method of disposal Opening shot of

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Mining Waste Products

Mining Waste Products The types of waste materials generated are dependant upon the type of mining activity Around the Fal Estuary there have been effectively three main types of mining activity 1 the recovery of cassiterite from the river sediments so called tin streaming or placer mining 2 the underground and opencast mining for metal hard rock mining and 3 opencast mining for

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Safety in Open Pit Mining

Welcome back to the surface mining model In the previous topic we learned about different types of surface mining operations about equipment about different methods that are commonly used to extract coal or different ore deposits It s not difficult to understand

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GEOTECHNICAL CONSIDERATIONS IN OPEN PIT MINES

Guideline August 1999 Geotechnical Considerations in Open Pit Mines Version 1 0 Department of Minerals and Energy Page 7 of 49 3 1 Planning for total mine life 13 8 1 The principal employer at and manager of a mine must ensure that geotechnical aspects

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A toxic crisis in America s coal country

In the shadow of some of America s most controversial coal mines where companies use huge amounts of explosives to blow the tops off mountains isolated communities say their water has been poisoned

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Environmental impact of manganese due to its leaching

In India so far not much efforts have been made to use coal ash as backfill material in underground open cast mines and to predict its subsequent effect on ground water quality One of the main problems in disposing of big quantities of coal ash is the possible

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blast pattern – Mining and Blasting

Blast Design This is meant to be a toolbox for blast design in conventional rock quarrying and open pit mines This write up is not meant to give straight answers to the blast design parameters as every single quarry is unique However the general relations between

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Case Study Cast Blasting

production rate is 2 3 million tonnes of thermal coal The open cut operation utilises excavators loaders dozers and trucks to mine the coal Product coal is then railed 250 kilometres to the Port of Brisbane to be exported to Japan Taiwan and Korea for use in

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Mine wastes management

Mine wastes management Mining wastes is generated during the process of extraction beneficiation and processing of minerals Open pit mines produce 8 to 10 times as much waste as underground mines 1 Once the ore is brought to the surface it is

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PDF COAL MINING METHODS

also referred to as open cast open pit mountaintop re moval or strip mining methods Open cast coal mining recovers a greater proportion of the coal deposit than underg round methods

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Coal mining

nbsp 0183 32 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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PDF Slope stability risk management in open pit mines

Slope stability risk management in open pit mines Conference Paper PDF Available 183 December 2015 with 6 753 Reads How we measure reads A read is counted each time someone views a

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Legacy of coal mining in Flanders Belgium

The mines produced some 400 million tons of coal creating a similar amount of waste material covering about 20 km of land Less visible is the vast area affected by subsidence where in certain areas permanent pumping will be necessary to prevent flooding

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Open pit mining

Open pit open cast or open cut mining is a surface mining technique of extracting rock or minerals from the earth by their removal from an open pit or borrow This form of mining differs from extractive methods that require tunnelling into the earth such as long wall mining Open pit mines are used when deposits of commercially useful ore or

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Environment Impact Assessment of Coal Mining

Environment Impact Assessment of Coal Mining 247 problems and lung cancer Dust allergy and asthma Noise hazard such as temporary or permanent hearing loss headache and high blood pressure 7 Mine fires an issue for not only the workers but also the people living in

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Spontaneous Combustion

Dealing with an Event There are a number of ways of dealing with a spontaneous combustion event depending on the size and accessibility If at the heating stage increasing the ventilation sufficiently to cool the site is an option This can be a risky process as there

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