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Handbook for methane control in mining
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June 2006
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[PDF-4.39 MB]
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Alternative Title:Facts about methane that are important to mine safety;Sampling for methane in mines and tunnels;Methane control at continuous miner sections;Preventing methane ignitions at longwall faces;Bleeder systems in underground coal mines;Coal seam degasification;Managing excess gas emissions associated with coal mine geologic features;Forecasting gas emissions for coal mine safety applications;Control of methane during coal mine shaft excavation and filling;Methane control in highwall mining;Control of methane in coal silos;Explosion hazards of coal dust in the presence of methane;Methane control in metal/nonmetal mines;Preventing methane gas explosions during tunnel construction;
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Description:"This handbook describes effective methods for the control of methane gas in mines and tunnels. It assumes the reader is familiar with mining. The first chapter covers facts about methane important to mine safety, such as the explosibility of gas mixtures. The second chapter covers methane sampling, which is crucial because many methane explosions have been attributed to sampling deficiencies. Subsequent chapters describe methane control methods for different kinds of mines and mining equipment, primarily for U.S. coal mines. These coal mine chapters include continuous miners and longwalls, including bleeders. Coal seam degasification is covered extensively. Other coal mine chapters deal with methane emission forecasting and predicting the excess gas from troublesome geologic features like faults. Additional coal chapters contain methane controls for shaft sinking and shaft filling, for surface highwall mines, and for coal storage silos. Major coal mine explosion disasters have always involved the combustion of coal dust, originally triggered by methane. Thus, a chapter is included on making coal dust inert so it cannot explode. Methane is surprisingly common in metal and nonmetal mines around the world, as well as in many tunnels as they are excavated. Accordingly, a chapter is included on metal and nonmetal mines and another on tunnels. Proper ventilation plays the major role in keeping mines free of hazardous methane accumulations. The ventilation discussed in this handbook, except for the chapter on bleeder systems, deals only with so-called face ventilation, i.e., ventilation of the immediate working face area, not ventilation of the mine as a whole. The omission of whole-mine ventilation was necessary to keep this handbook to a reasonable size and because a huge amount of excellent information is available on the subject." - NIOSHTIC-2
NIOSHTIC NO 20030254
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Content Notes:by Fred N. Kissell.
Includes bibliographical references and index.
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