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SPONTANEOUS COMBUSTION IN COAL - COALspot

composition of coal, how it is stored, and how it is used. Given the right kind of coal, oxygen, and a certain temperature and moisture content, coal will burn by itself. Spontaneous combustion has long been recognized as a fire hazard in stored coal. Spontaneous combustion fires usually begin as "hot spots" deep within the reserve of coal.

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v115n7a1 Spontaneous combustion risk in South African ...

Spontaneous combustion risk in South African coalfields by B. Genc* and A. Cook† Synopsis The risk of spontaneous combustion is well known in the South African coal mining industry. In the coming years it is very possible that the incidence of spontaneous combustion will increase from current levels, due

  • Published in: Journal of The South African Institute of Mining and Metallurgy · 2015Authors: B Genc · A CookAffiliation: University of the WitwatersrandGet Price

(PDF) Investigation of Spontaneous Combustion of Coal in ...

Spontaneous combustion of coal is one of the major problems in the coal mine. The fire may occur due to exogenous and endogenous causes, by which coal liberated heat to the air or heat absorbed ...

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Spontaneous Combustion - Description - underground COAL

Strictly speaking, it is the oxidation process that is combustion and, to the extent that all coals oxidize, all coals are prone to spontaneous combustion. However in coal mines, coals spoken of as being liable to spontaneous combustion are those coals which will develop to .

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Storage of Coal: Problems and Precautions - EOLSS

STORAGE OF COAL: PROBLEMS AND PRECAUTIONS G. Ökten, O. Kural and E.Algurkaplan Department of Mining Engineering, Istanbul Technical University, TURKEY Keywords: Low Temperature Oxidation, Oxidation of Coal, Self Heating of Coal, Spontaneous Combustion, Coal Storage, Stacking, Blending. Contents 1. Introduction 2. Methods of Coal Stacking

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Research on complex air leakage method to prevent coal ...

the key factor triggering spontaneous combustion of coal in longwall goafs. In this study, a comprehensive method, which combined pressure balance, grouting injection, and filling fis-sures, was proposed to prevent spontaneous combustion of coal in longwall goafs with com-plex air leakage.

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Spontaneous Coal Combustion Part 1: A Burning Mystery ...

India has the largest concentration of coal fires, and it is estimated that 80% of those fires started due to spontaneous combustion. Indian coal fires were first documented in coal fields located in Raniganj back in 1865. In addition, mines in Jharia, Jharkhand are famous for their rich coal resources, but records show nearly 70 fires have been burning for over 100 years dating back to 1916.

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Detection and Control of Spontaneous Heating in Coal .

Spontaneous heating in underground coal mines involves the When coal is prone to spontaneous heating, a problem can oxidation of coal deposits. Factors affecting the likelihood of arise within pillars that remain after the mining cycle has been spontaneous heating include coal .

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Spontaneous Combustion in Open Cut Coal Mines - ACARP

Open-cut coal mining produces large quantities of waste material that must be disposed of around the mine site. Some of this material may be sufficiently reactive to begin to self-heat which can ultimately lead to spontaneous combustion in the spoil piles at some mines.

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The Green Book - Spontaneous Combustion in Australian Coal ...

The material included is not meant to pre-empt or influence any legislative initiatives or policy directions related to mine safety in Queensland and NSW. This text is offered as an ongoing contribution to increasing and disseminating knowledge about spontaneous combustion across the coal industry and to enhance mine safety.

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Developments in the Management of Spontaneous .

2014 Coal Operators' Conference The University of Wollongong 330 12 – 14 February 2014 DEVELOPMENTS IN THE MANAGEMENT OF SPONTANEOUS COMBUSTION IN AUSTRALIAN UNDERGROUND COAL MINES David Cliff1, Darren Brady2 and Martin Watkinson3 ABSTRACT: In 1996 the book Spontaneous Combustion in Australian Underground Coal Mines was first released .

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Spontaneous Combustion | MINING

Spontaneous Combustion As has been described above that causes the onset of spontaneous combustion is an oxidation reaction that occurs naturally in coal, resulting in heating by itself which then cause spontaneous combustion if not controlled.

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Early detection of spontaneous combustion of coal in ...

Early detection of spontaneous combustion of coal in underground coal mines with development of an ethylene enriching system Jun Xie 1,*, Sheng Xue 1, Weimin Cheng 2, Gang Wang 1,* CSIRO Earth Science and Resource Engineering, PO Box 883, Kenmore, QLD, Australia 4069 Tel: +61 7 33274119; Fax: +61 7 33274666, Email: [email protected]

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Coal's Spontaneous Combustion Problem - Sightline Institute

Apr 11, 2012 · A study of spontaneous combustion in coal fields in South Africa found that the coal fires emitted a range of gases, including toxic substances, carcinogens, and heavy metals. (This study focused on coal mining sites, which can have rather different characteristics than stockpiles.) Could you please tell me where I can get hold of this research.

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Spontaneous combustion - Wikipedia

Pyrite oxidation is often the cause of coal spontaneous ignition in old mine tailings. Pistachio nuts are highly flammable when stored in large quantities, and are prone to self-heating and spontaneous combustion. Large manure piles can spontaneously combust during conditions of .

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Investigation of Spontaneous Combustion of Coal in ...

The risk of spontaneous combustion of coal is highly serious especially for underground coal mines. Coals react with oxygen immediately after producing in coal mines and they are subject to spontaneous combustion. This reaction is an exothermic reaction and coals give heat to the surrounding air.

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Cost-effective spontaneous combustion hazard assessment of ...

Spontaneous combustion in coal mine overburden spoil piles is a hazard that requires managing using a risk management approach, which combines appropriate hazard assessment and controls to mitigate the risk of creating an event. Recent site investigations of coal mine overburden have led to the ...

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CONTROL OF - Mining and Blasting

references. These give a wide-ranging insight into the causes and control of spontaneous combustion in coal mining and coal storage. In order to assist individuals who wish to obtain a deeper understanding of spontaneous combustion, the literature survey of Project 3.4.1 is reproduced at the end of this report as Appendix 5.

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Spontaneous combustion - Wikipedia

Pyrite oxidation is often the cause of coal spontaneous ignition in old mine tailings. Pistachio nuts are highly flammable when stored in large quantities, and are prone to self-heating and spontaneous combustion. Large manure piles can spontaneously combust during conditions of .

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Spontaneous combustion of coal - SlideShare

Nov 03, 2014 · Fires occurring due to spontaneous combustion is a function of: •quality of the coal and •circumstances which it is subjected. In coal mines, for spontaneous combustion to occur, three conditions must be satisfied: •Coal must be present in a form .

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Predicting Spontaneous Combustion in Spoil Piles from Open ...

horizons. Coal and carbonaceous materials react with oxygen in the atmosphere, producing heat. If the rate at which heat is generated is greater than the rate at which heat can be dissipated, the temperature of the spoil pile rises. If the heating remains unchecked, spontaneous combustion can occur. Spontaneous combustion poses significant ...

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