alternative coal mining methods

7 Alternatives for Future Coal Waste Disposal | Coal Waste ...

The opportunities for reducing slurry volume include mining and coal processing alternatives. Modern methods of surface and underground coal mining offer only a limited possibility for quality control during mining. Mining operations can be planned to extract coal from the best quality seams and minimize dilution with noncombustible material.

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7/9/2021 Coal mining - Wikipedia 3/26 Ships have been used to haul coal since Roman times. techniques of underground coal mining from the late 18th century onward, with further progress being driven by 19th century and early 20th-century progress. [2] However, oil and gas were increasingly used as alternatives from the 1860s onward. By the late 20th century, coal was, for the most part ...

Green Mining

In situ mining (see mining solution page) can be more environmentally friendly than underground mining and is cheaper than many mining methods (Ulmer-Scholle, 2008). However, in situ mining cannot be implemented in all cases as the ore needs to be beneath the water table (the level at which the ground is saturated with water) and it needs to be ...

Backfill mining alternatives and strategies for mitigating ...

To mitigate these hazards, three alternative backfill mining methods are proposed, for three typical shallow coal mining conditions, using aeolian sand-based backfilling materials, which are readily available in this area. The main influencing factor is the backfill material compaction ratio.

Wind power as an alternative to coal

Wind power is the conversion of wind energy into a useful form of energy, such as using wind turbines to make electricity, wind mills for mechanical power, wind pumps for pumping water or drainage, or sails to propel ships. At the end of 2009, worldwide nameplate capacity of wind-powered generators was 159.2 gigawatts (GW) and energy production ...

Alternative Shortwall Mining Method

Alternative Shortwall Mining Method – Gretley Colliery. Another shortwall mining method was developed in the 1980''s as a means of realising the benefits of longwall mining in a shallow seam, partial extraction application where there were considerable subsidence constraints under a residential area.

Best Practices For Dust Control In Coal Mining

sampling methods. Chapters 3, 4, and 5 focus on dust control technologies for longwall mining, continuous mining, and surface mining, respectively. Finally, it must be stressed that after control technologies are implemented, the ultimate success of ongoing protection for workers depends on continued maintenance of these controls.

Pro-Coal Mining And Anti-Coal Mining Methods

Pro-Coal Mining And Anti-Coal Mining Methods. 1182 Words5 Pages. 1. What is mountain top removal and what is its purpose? (.5 page) Mountain top removal is the practice for removing the peaks from mountains to expose coal seams for extraction, and dumping the excess rocks and earth is then dumped into holler fills.

4 Ways the Mining Industry Uses Renewable Energy | Anglo ...

Water is an important resource for mining natural gas, coal, oil, and uranium. Fuel extraction from mine sites produce toxic wastewater. However, reprocessing nuclear or old coal plants with more water treatment technologies helps to minimise the number of withdrawals–making it better for the environment.

CDC

 · Alternative mining methods were also investigated as a means of reducing stress concentrations and removing workers from hazardous areas. Collaborative research was conducted with four underground metal mines located in the western U.S., two universities, and multiple industry experts.

What is Strip Mining? Methods and Impact | Environment Buddy

 · The Strip Mining Method. All surface or strip mining initially eradicates the vegetation, rock sediment, and soil spread over the surface to uncover and remove coal from an underground mineral seam or coal deposit. I should also mention, phosphate mining operations are very similar to coal mining operations.

APPENDIX A VEGETATION SAMPLING METHODS AND …

VEGETATION SAMPLING METHODS AND RECLAMATION SUCCESS STANDARDS FOR SURFACE COAL MINING OPERATIONS Introduction Procedures specified in this document are required for surface coal mining operators per its reference in Chapter 2, Section 2(a)(vi)(C) of the WDEQ/LQD Rules and Regulations.

Is fracking really a better alternative to coal ...

 · The resulting so-called ''transitional fuel'' obtained via fracking is arguably cleaner than coal, emitting 45% less carbon dioxide per energy unit than coal production (Lomborg, 2012). For the United States, fracking provides an opportunity to achieve energy self-sufficiency and reduce carbon dioxide emissions.

How the global steel industry is cutting out coal | The ...

 · The end of an era: how the global steel industry is cutting out coal. As backlash erupted last year in response to the Alberta government''s plans to open up large swaths of the Rocky Mountain region to metallurgical coal mines, alternative plans were already afoot in the global steel-making industry. Companies have introduced technologies that ...

Going for gold: Alternative processing methods ...

 · Importantly, unlike coal processing, gold processing currently involves the use of environmentally hazardous cyanide, adding a raft of legal and regulatory burdens to operating.

Surface Coal Mining Methods in Australia

Mining Methods 6 Fig. 3. Overall mining sequence of a typical surface coal mine in Australia (after Westcott et al., 2009). 2.1 Dragline method Dragline is the predominant mach ine which is used to remove the overburden and expose the coal when the deposit s characteristics match the draglines physical capabilities. Once

Room-and-pillar mining | coal mining | Britannica

In coal mining: Development of continuous mining …loading, developed in association with room-and-pillar mining. The oldest of the basic underground methods, room-and-pillar mining grew naturally out of the need to recover more coal as mining …

A Life Cycle Analysis of Electricity Generation ...

historical overview of the research studies. Finally, we review and critique the alternative methods used for life cycle analysis. Our focus is the recent studies of the health and environmental implications of each technology. The studies agree that coal mining, transport, and combustion pose the greatest health and environmental costs.

MINING METHOD SELECTION METODOLOGY BY MULTIPLE …

A mining company wants to choose the most suitable alternative for extracting coal deposit located on the western side of Cerro Tasajero, Norte de Santander, Colombia. This site was carefully studied by an interdisciplinary group of Geologists and Engineers

An alternative to propping up coal power plants: Retrain ...

 · An alternative to propping up coal power plants: Retrain workers for solar. The Trump administration announced new pollution rules for coal-fired power plants designed to keep existing coal …

Alternatives to coal plants

According to 2009 estimates, coal is used to generate approximately 41% of the world''s electricity, with an additional 13% (717 million tonnes) used for iron and steel production, and a smaller percentage for cement production. This article discusses some of the proposed alternatives to coal plants, including various forms of renewable energy, conservation and efficiency, natural gas, biomass ...

Mining Method

 · Mining Method. The methods are (1) room and pillar and (2) high extraction. The method used gives some indication of the amount and pattern of coal extraction within each mined area, and has some influence on the timing and type of subsidence that can occur over a mine. The following discussion and illustrations of mining methods are based on ...

Activity Based Costing: Challenging the way we cost ...

coal mining industry costs their operations using PC, a costing alternative (in the form of Activity Based Costing) is suggested, which could be of benefit to the underground coal mining industry as a whole. A costing alternative It was mentioned earlier in this paper that no one best cost benefit analysis exists, but rather that the best ...

Surface Coal Mining Methods in Australia

Surface Coal Mining Methods in Australia 7 Fig. 4. Dragline Working Section (Gianazza, 2010). Fig. 5. Box cut, strip cuts and spoil piles (Humphrey, 1984). mining access are either taken through the over burden dump as a valley, dozed through the spoil pile parallel to the strip, created in the highwall either parallel or at right angles to the

Alternative excavation methods in undeground coal mining ...

Alternative excavation methods in undeground coal mining . By C. Donnelly, ... Recently work commenced on a project that is challenging the norm and implementing an alternative excavation method into the Australian coal mining industry by the use of a tunnel boring machine. The tunnel boring machine will mechanically excavate both the Conveyor ...

Alternative excavation methods in undeground coal mining

Coal Operators'' Conference Faculty of Engineering and Information Sciences 2014 Alternative excavation methods in undeground coal mining C. Donnelly Redpath Australia G. Rammage Redpath Australia M. Donghi Redpath Australia Research Online is the open access institutional repository for the University of Wollongong. For further information ...

Cutting Methods | Longwall | underground COAL

CUTTING METHODS. Most aspects of alternative cutting methods and cutting procedures have been referred to in the Longwall section of the Fundamentals of Coal Mining module of this web site and little can be added here. The basic cutting methods are Bi-di and Uni-di. "Half Web" methods have been introduced to provide several benefits, mainly in ...

Commonly used mining techniques to extract coal | ICSC

 · As mining of coal depends on the depth and quality of the coal seams, different techniques are used to dig the deposits. Surface mining and deep underground mining are the two main methods of mining coal. Depth, density, and thickness of the coal seam are the factors that are taken into account while selecting the mining method for coal extraction.

Digging deeper: Mining methods explained | Anglo American

The underground mining methods we use include room and pillar, narrow vein stoping and large-scale mechanised mining. Room and pillar mining is a style of mining where tunnels are driven in a chess board pattern with massive square pillars between them which are gradually cut away as the work proceeds. We use this for mining coal.

30 U.S. Code § 1328

the development and application of coal mining technologies which provide alternatives to surface disturbance and which maximize the recovery of available coal resources, including the improvement of present underground mining methods, methods for the return of underground mining wastes to the mine void, methods for the underground mining of thick coal seams and very deep seams; and

3 Methods Of Coal Mining

 · Deep underground mining methods include Continuous, Longwall, Blast, Retreat Mining and Shortwall Mining. o Continuous Mining: A machine that has a large rotating steel drum with tungsten carbide teeth scrapes coal from the seam. Conveyors are used to transport the removed coal. About 5 tons of coal can be mined per minute.