Design, development, and verfication of a Lovat 7.6-metre full-face tunnel-boring machine

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Mots clés : Coal Mining;Tunnel boring machines;Underground mining;Donkin-Morien Project;Ventilation
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Publication: CIM Bulletin
Auteur(s): WILLIAM M. BRYDEN, DONALD E. WAKEFIELD, SCOTT L. EWART
Mots clés: Mining Act, Ontario, Mineral development
Numéro: 865
Volume: 77
Année: 1984
Texte
Sommaire: Planning for coal beneficiation in the electric utility industry is relatively complex, involving the coordination of experts and specialists in a broad range of fields, as well as compliance with a wide variety of government regulations.
This paper examines the role of the planner, reviews possible benefits of coal beneficiation, identifies potential problems and illustrates a typical planning schedule.
The steps involved in the planning process are:
Step 1—Bench- and pilot-washability...
Publication: CIM Bulletin
Auteur(s): DENNIS NIKOLS
Mots clés: Coal preparation, Coal beneficiation, Electric utility, Tailings, Environmental control, Geotechnical engineering
Numéro: 865
Volume: 77
Année: 1984
Texte
Sommaire: The coals of the Sydney and Pictou coalfields are generally classed as high volatile "A " and medium volatile bituminous coals but there are significant differences within and even beyond this rank. These are related to the observation that the coalification in eastern Canada is essentially post-defor-mational, resulting in a general increase of rank with depth in individual seams.
Exploration drilling in the Sydney coalfield has shown that the rank increases offshore to M. V....
Publication: CIM Bulletin
Auteur(s): PETER A. HACQUEBARD
Mots clés: Coal mining, Coal rank, Sydney coalfield, Pictou coalfield, Coalification, Geology, Coking
Numéro: 865
Volume: 77
Année: 1984
Texte
Sommaire: Funding has been made available through the National Energy Program to build a mobile fine coal treatment plant. The plant is intended for field application and also to upgrade the existing pilot plant facilities.
Western Canadian coals with high proportions of fines (due to their friability) cause high losses of fine coal to the reject and in turn reduce the over-all recovery of saleable coal. Eastern Canadian coals with high amounts of sulphur often require crushing to fine sizes to...
Publication: CIM Bulletin
Auteur(s): M.W. MIKHAIL, R.J. MIKULA
Mots clés: Coal preparation, Mobile plant, Coal treatment, Beneficiation, Fine coal
Numéro: 865
Volume: 77
Année: 1984
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