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The coal mining life cycle - Mining for schools

Open-pit mining. Some 53% of South Africa's coal is produced from surface mining, via open-cast or open-pit mines. This is because the coal is less than 60 metres below the surface. Open-pit mines use draglines, as well as truck and shovel operations to extract coal. A dragline excavator uses a dragline to pull a bucket by a wire cable.

Glossary of Mining Terms - Coal Education

A. Abutment - In coal mining, (1) the weight of the rocks above a narrow roadway is transferred to the solid coal along the sides, which act as abutments of the arch of strata spanning the roadway; and (2) the weight of the rocks over a longwall face is transferred to the front abutment, that is, the solid coal ahead of the face and the back abutment, that is, the settled packs behind the face.

Glossary, Abbreviations and Units

Caval Ridge Coal Mine Project – Environmental Impact Statement Page 1 Glossary, Abbreviations and Units Glossary Term Definition Airlift yield volume of water per unit of time blown from the borehole during drilling (l/s) Alluvial sediments deposited by flowing water

CoalSpeak: Dictionary of the Coal Region

Comes from the mining days when ham for lunch was a treat. hard coal : the Anthracite Coal that the coal region of Eastern Pennsylvania is famous for. Bituminous, or "soft coal" is mined in Western Pennsylvania. To be "from da hard coal" is to be from the Coal Region of Eastern PA.

4 Coal Mining and Processing | Coal: Research and ...

The term coal quality is used to distinguish the range of different commercial steam coals that are produced directly by mining or are produced by coal cleaning. 3 Generally, coal quality for steam coals (i.e., coal used for electricity generation) refers to differences in heating value and sulfur content, although other characteristics such ...

Coal Terminology: Resource & Reserve

Resource terminology. "Measured" – The amount of coal based on closely spaced, direct measurements such as visual confirmation on the surface, boreholes, or actual mines. Often includes information on coal rank and quality of coal as well. The specifications for this spacing and quality of measurements vary by country and between US states.

Glossary of Scotch Mining Terms

A Glossary of Scotch Mining Terms. Compiled by James Barrowman, Mining Engineer, Secretary to the Mining Institute of Scotland, 1886 ... Coal sold for delivery in horse carts is usually sold by the cart of 12 cwts., or waggon of 24 cwts. CARTRIDGE, A quantity of powder or other explosive packed in suitable form for use in blasting.

What does coal mining mean? - definitions

Definition of coal mining in the Definitions.net dictionary. Meaning of coal mining. What does coal mining mean? Information and translations of coal mining in the most comprehensive dictionary definitions resource on the web.

coal mining - Underground mining | Britannica

coal mining - coal mining - Underground mining: In underground coal mining, the working environment is completely enclosed by the geologic medium, which consists of the coal seam and the overlying and underlying strata. Access to the coal seam is gained by suitable openings from the surface, and a network of roadways driven in the seam then facilitates the installation of service facilities ...

Glossary of coal mining terms and coal miners' jargon ...

Glossary of coal mining terms and coal miners' jargon by, 1985, The Association edition, in English - [2nd ed.].

Mining Glossary - Energy Glossary | Australian Shares

A. Abutment - A coal mining term to describe the weight of the rocks above a narrow roadway transfering to the solid coal along the sides, which act as abutments of the arch of strata spanning the roadway.; Angle of dip - The angle at which strata or mineral deposits are inclined to the horizontal plane.; Anorthosite - A plutonic rock composed almost entirely of plagioclase, which is usually ...

Longwall Mining - an overview | ScienceDirect Topics

Stanley R. Michalski, in Coal and Peat Fires: A Global Perspective, 2011 Longwall Coal Mining. The longwall-mining method is a continuous mining system that was developed for mining coal deposits uniform in thickness and slope or where the overburden pressures may crush support pillars or for improving productivity. This method relies on the complete extraction of the coal in a designated area ...

Glossary of Mining Terms - Mineral

Glossary of Mining Terminology. A. Abutment - In coal mining, (1) the weight of the rocks above a narrow roadway is transferred to the solid coal along the sides, which act as abutments of the arch of strata spanning the roadway; and (2) the weight of the rocks over a longwall face is transferred to the front abutment, that is, the solid coal ...

Coal mining terms | Engole

T his is a partial glossary of common coal mining terms used in the United Kingdom. Some words were in use throughout the coalfields, some are historic and others are local to the different British coalfields. A. Adit: an underground level or tunnel to the surface for access or drainage. [1] [2] Afterdamp Damps is the collective name given to all gases other than air found in coal mines in ...

Glossary of Coal Mining Terms - DOL

of Coal Mining Terms Abandoned areas - section, panels and other areas that are not ventilated and examined in the manner required for work places. Active workings - any place in any mine where miners are normally required to work or travel.

Longwall Mining Overview | Introduction | underground COAL

Longwall mining systems are capable of producing significant outputs from a single longwall face – 8 million tones per annum or more. When operating correctly the coal is mined in a systematic, relatively continuous and repetitive process which is ideal for strata control and for associated mining operations. There is a high capital cost for ...

GLOSSARY OF MINING TERMS(B) - Apedale Heritage Centre

GLOSSARY OF MINING TERMS(B) Back, the plane of cleavage in coal having a smooth parting, an easy parting in the coal at a high angle to the roof and floor. To work with the cleavage is said to work the 'back of the slip' or 'on the back'. When working against the cleavage it is said to be working 'on end'; or a term describing coal projecting from the line of the face after cutting; or a ...

Coal Mining Terminology

Illinois Coal & Coal Mining History & Genealogy; Terminology Some of the terms used in the Coal Mining Industry Adit: A horizontal passage-way, open on both ends ~ usually called a tunnel Adze: A curved tool for dressing timber Afterdamp: Gas formed from the products of an explosion of fire-damp,

Glossary of Mining and Geordie words.

A. Adit:-Entrance to a mine, usually a drift which sloped from the surface down to a coal seam.Advanced Head : -A roadway heading which is in front of the coal face line. Advance Face: -A face where the coal is extracted as the face and roadways advance inbye.Opposite to retreat mining. AFC:-An armoured flexible conveyor, used to transport coal off a face, coal cutting machines were often ...

Common Coal Mining and Processing Terms

Common Coal Mining and Processing Terms The following is a list of some common terms used in coal mining and processing. This list has been compiled from posts written in the former glossary section – removed late 2012.

Mining Terms - kau

Examples for Underground Mining Important Terms of Underground Mining . Some. Examples for Surface Mining Important Terms of Surface Mining . Mining Terms . Types of Mining ... A horizontal opening in a bedded mineral deposit (ex. coal). Face: The rock surface which excavation techniques are being preformed apon to advance a horizontal ...

Glossary of mining terms, terminology, abbreviations, symbols

A glossary of terms and meanings along with the terminolgy used in mining and exploration. Mining Talk & Terminology. Symbols & Meanings. ADIT. A nearly horizontal passage driven from the surface to the mine workings. ... BITUMINOUS COAL. A middle rank coal formed by pressure and heat on lignite. Usually has a high Btu value (british thermal ...

Basic Mining Terminology - groundtruthtrekking.org

Basic Mining Terminology. An overview of basic mining terms and where various components of a mineral deposit end up. When metal is mined, the rock is separated into three categories. The first to be excavated is overburden, which includes plants, topsoil, and …

Glossary of Mining Terms – Legends of America

Glossary of terms used in the American Mining Industry. Dry Diggings – Earth excavated in the summer and held to be washed in winter when water was more plentiful.. Dry Washing – Fine soil blown away, leaving the gold.. Drywasher – A common desert mining tool similar to a highbanker but doesn't need water.It operates by the use of wind. The light junk material is blown off the top of ...

coal mining | Definition, History, Types, & Facts | Britannica

coal mining, extraction of coal deposits from the surface of Earth and from underground.. Coal is the most abundant fossil fuel on Earth. Its predominant use has always been for producing heat energy. It was the basic energy source that fueled the Industrial Revolution of the 18th and 19th centuries, and the industrial growth of that era in turn supported the large-scale exploitation of coal ...

A Glossary of the most common mining terms

Here's a comprehensive A-Z guide of mining terms you need to know if you are considering investing in the mining industry or are just curious about how mining works. AC drilling: Air core drilling; Air blast drilling technique with limited coring capability. Alluvial deposit: Clay or silt or gravel carried by rushing streams and deposited ...

A glossary of terms used in coal mining : Gresley, William ...

A glossary of terms used in coal mining by Gresley, William Stukeley. Publication date 1883 Topics Coal mines and mining Publisher London, New York, E. & F.N. Spon Collection cdl; americana Digitizing sponsor MSN Contributor University of California Libraries Language English. Addeddate 18:34:47 Call number

Circular 891 - Glossary of Coal Classification System and ...

GLOSSARY OF COAL CLASSIFICATION SYSTEM AND SUPPLEMENTARY TERMS. ... lost-in-mining.--Coal remaining in the ground after all extraction is completed. Lost-in-mining includes coal that is (1) left to support mine roofs, (2) too thin to mine, (3) unmined around oil, gas, water, and disposal wells, (4) unmined around shafts and electrical and water ...

Appendix Y - Glossary of Mining Terms as used in this ...

as a mainway; a coal heading; a working place where the coal is extracted from the seam in the initial mining; same as "gate" and "roadway," both British terms. Extraction - The process of mining and removal of cal or ore from a mine. Face – The exposed area of a coal bed from which coal …

Mining Terms Explained: A to Z | Anglo American

A glossary of mining terms. Mining explained. Bulk ore sorting and coarse particle recovery – leading the way in mineral processing innovation. Mining explained. Digging deeper: Mining methods explained. The four concepts underpinning a new way of mining.