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1 edition of Inhibition of spontaneous combustion of coal. By Alex C. Smith [and others] found in the catalog.

Inhibition of spontaneous combustion of coal. By Alex C. Smith [and others]

Inhibition of spontaneous combustion of coal. By Alex C. Smith [and others]

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  • 22 Currently reading

Published by U.S. Dept. of the Interior in Washington .
Written in English

    Subjects:
  • Coal - Combustion

  • Edition Notes

    11

    The Physical Object
    Pagination16 p.
    Number of Pages16
    ID Numbers
    Open LibraryOL22055664M

    onnumerous coal samples inspeciallY designed apparatus. Sincethecompletion qf theprqject,attempts SMITH,A.C.,and LAzZARA.C.P. Spontaneous combustion studiesifUScoals. Report ifInvestigations No Washington, USBureau ofMines, spontaneous combustion wasidentified asbeing themajor causeoffires inSouth African. Yes, the book is disjointed, but in that sense it's an accurate picture of life in the midst of chaos and tragedy. The ultimate effect of the book, though, isn't a big disorganized mess, but rather the possibility for survival and even happiness. I highly recommend this book! Read more.5/5(1).

    R 70 testing. The R 70 test provides a quick and accurate measure of the intrinsic reactivity of coal to oxygen and is backed by an extensive database of results from locations around the world that can enable a direct comparison to be made between coals of similar spontaneous combustion propensity. The R 70 values obtained are strongly coal rank dependent and are affected by the intrinsic. Inhibition of spontaneous combustion of coal. Published Date: Series: Report of investigations (United States. Bureau of Mines) ; Language: English Smith, Alex C. Corporate Authors: United States. Bureau of Mines. Published Date: Series: Report of investigations (United States.

    Smith, Alex C. Large-scale studies of spontaneous combustion of coal. Pgh. [i.e. Pittsburgh] PA: United States Dept. of the Interior, Bureau of Mines, (OCoLC) Material Type: Government publication, National government publication: Document Type: Book: All Authors / Contributors: Alex C Smith; Yael Miron; Charles P Lazzara.   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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Inhibition of spontaneous combustion of coal. By Alex C. Smith [and others] Download PDF EPUB FB2

INHIBITION OF SPONTANEOUS COMBUSTION OF COAL By Alex C. Smith,1 Yael Miron,2 and Charles P. Lazzara3 ABSTRACT This report describes laboratory studies conducted by the Bureau of Mines to evaluate the effectiveness of 10 additives to inhibit the self~heating of coal.

Aqueous additive solutions were appliedCited by: Additional Physical Format: Online version: Smith, Alex C. Inhibition of spontaneous combustion of coal. [Washington, D.C.]: United States Dept. of the Interior.

This report describes laboratory studies conducted by the Bureau of Mines to evaluate the effectiveness of 10 additives to inhibit the self-heating of coal.

Aqueous additive solutions were applied to a bituminous coal with a high spontaneous combustion potential, and the minimum self-heating temperatures (sht's) of the dried coal- additive.

Large-scale studies of spontaneous combustion of coal [microform] / by Alex C. Smith, Yael Miron, and Charles P. Lazzara U.S.

Dept. of the Interior, Bureau of Mines Washington, D.C. ( E St., N.W., MS #, Washington ) Spontaneous combustion initiates as a result of low-temperature oxidation of organic coal components. The upper limit of the temperature range cited for oxidation is 70°C and the primary requirement is that combustion initiates without the use of external triggers.

The self-heating of coal-shale has been reported to be the likely source of spontaneous combustion in selected bands of a coal seam, highwalls and spoil heaps in Witbank, South Africa (as shown in Fig. 1, Fig. 2, Fig. 3).Spontaneous combustion of coal has been extensively studied in underground and opencast mines of South African mines using small-scale test.Cited by: Assessing and managing spontaneous combustion of coal 4 Abstract This report summarises the most common, practical methods used to determine the propensity of coal to self-heat and considers the external factors which can combine to result in a spontaneous combustion event.

Coal spontaneous combustion needs to have enough oxygen and heat, on the one hand, water salts inhibitor can isolate from coal exposure to air; on the other hand, water salts inhibitor interact with active groups in coal to form complex, increase the stability of coal and boost the heat of spontaneous combustion of coal.

This paper has made use of quantum chemical calculation’s software Author: Feng Wei Dai. •Majority of tests measures ‘reactivity’ of coal to oxidation • Term ‘reactivity’ of coal used in other contexts too -for example • Propensity of coal to react with carbon dioxide to form carbon monoxide • During use as a reductantin pyro metallurgical processes Reactivity of coal • In terms of spontaneous combustion testing the termFile Size: KB.

• Spontaneous combustion can result and make mining difficult • Research conducted by Coaltech/ mining companies • Guidelines compiled for use by coal mines • Recent mining operations report successful control of spontaneous combustion through application of buffer blasting, use of sand to cover high-walls etc.

Re-mining of remnant File Size: 1MB. Spontaneous combustion studies of U.S. coals [microform] / by Alex C. Smith and Charles P. Lazzara U.S. Dept. of the Interior, Bureau of Mines Pittsburgh, Pa Wikipedia Citation Please see Wikipedia's template documentation for further citation fields that may be required.

Spontaneous heating and fire in coal mines is a major problem worldwide and has been a great concern both for the industry and researchers in this : Ran Vijay Kumar Singh. 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 File Size: 4MB. Spontaneous heating and fire in coal mines is a major problem worldwide and has been a great concern both for the industry and researchers in this field.

Majority of fires existing today in different coalfields are mainly due to spontaneous combustion of by: Topic of work: A critical investigation into spontaneous combustion in coal storage bunkers.

Declaration. I understand what plagiarism is and am aware of the University’s policy in this regard. I declare that this dissertation is my own original work. Where other people’s work has been used (either.

Bleederless Ventilation Systems As a Spontaneous Combustion Control Measure in U.S. Coal Mines (Information Circular) [Alex C. Smith] on *FREE* shipping on qualifying offers.

@article{osti_, title = {Spontaneous combustion studies of U. coals}, author = {Smith, A.C. and Lazzara, C.P.}, abstractNote = {This report describes laboratory studies conducted by the Bureau of Mines on the spontaneous combustion of U.S.

coals. Approximately 11 pct of U.S. underground coal mine fires are attributed to spontaneous combustion. Underground coal mines are required to manage the risk of spontaneous combustion and the initial part of this process is to obtain an assessment of the spontaneous combustion propensity of the coal.

In order to prevent spontaneous combustion of coal from the source, based on the study on the mechanism of spontaneous combustion of coal, especially the process of coal to self-ignite and different activate structures have different activation for oxidization, the new theory and mechanism with chemical inhibition that can change the tendency of spontaneous combustion of coal Cited by: 4.

5 Spontaneous combustion of coal The first stage is the adsorption and chemisorption of oxygen. During this stage, the coal increases in weight as the oxygen is adsorbed and heat is Size: KB. Alex C Smith and Michael J Sapko, Prevention of Spontaneous Combustion fires in US coal mines.

Chumak A.S, Pashkovsky P.S, Yaremchuk, Prevention of spontaneous fires by directed nitrogen supply. Kurt Smoker and Rob Albinger, Mitigation of fires in coal-handling facilities: continuous monitoring of carbon monoxide.Spontaneous combustion of coal (sponcom) is a major hazard in underground coal mining operation in terms of both safety and productivity (Qin et al., ).

Although most studies point to oxidation of organic matter as the main cause of sponcom (Stracher and Taylor, ; Querol et al., ).ultimately lead to a spontaneous ignition event. Smith et al. () studied the effects of a range of inhibitors on coal spontaneous combustion, with varying degrees of success.

The index parameter used to quantify the effectiveness of each inhibitor was .