Masters Theses
Abstract
"The purpose of this study is to review the various causes of coal dust explosions and to summarize the preventive measures through which it may be possible to minimize the hazards of coal dust explosions. The properties of coal dust which have an important influence on its explosibility are: fineness, purity, percentage of volatile matter, dryness, age and degree of oxidation, lifting velocities and dispersability, and its static electrification.
Explosibility of coal dust has been studied in laboratories, in explosion galleries and in an experimental coal mine. The data and results obtained from the tests showed that finely pulverized coal dust has a lower explosive limit of 0.035 to 0.08 ounces per cubic foot.
Although formation of coal dust is not possible to prevent, its dispersion can, however, be considerably reduced if proper preventive measures are adopted.
Application of water during the various phases of mining is an effective means in many instances for reducing the quantity of fine coal dust dispersed during mining operations.
One of the most practical measures is a generous application of rock dust in the mine workings. The requirement of 65 percent of incombustible material in coal mine dust provides a comfortable factor of safety against coal dust explosions.
Other major preventive measures which can be adopted include rock dust barriers, concrete stoppings, and pressure relief vents in their various forms and modifications"--Abstract, page 1.
Advisor(s)
Bruzewski, Robert F., 1918-1978
Committee Member(s)
Morgan, Ray E., 1908-1997
Legsdin, Adolph, 1899-1969
Christiansen, Carl R., 1921-1997
Department(s)
Mining Engineering
Degree Name
M.S. in Mining Engineering
Publisher
Missouri School of Mines and Metallurgy
Publication Date
1960
Pagination
vii, 168 pages
Note about bibliography
Includes bibliographical references (pages 162-167).
Rights
© 1960 Surya Narayan Roychowdhury, All rights reserved.
Document Type
Thesis - Open Access
File Type
text
Language
English
Subject Headings
Dust explosions -- Safety measures
Coal mines and mining -- Dust control
Coal dust -- Measurement
Thesis Number
T 1292
Print OCLC #
5932129
Electronic OCLC #
955308768
Link to Catalog Record
Recommended Citation
Roychowdhury, Surya Narayan, "Coal dust explosions and their prevention" (1960). Masters Theses. 2797.
https://scholarsmine.mst.edu/masters_theses/2797
Comments
Manuscript has no page 163.