Boiler tube fallure mechanism recognition — an expert system

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Mots clés : Expert systems;Computer applications;Boiler tube
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Sommaire: In October 1984, Rocanville Division began using a stacking system to handle potash mill tailings. Previous to this date, mill tailings were slurried to the top of the tailings pile and allowed to debrine while flowing down the pile. With the new stacking system, slurried tailings are fed to mobile stackers. The stackers consist of cyclone packs to debrine the tailings and drag conveyors with screw discharges to deposit the tailings onto the existing pile. This paper deals with the various...
Publication: CIM Bulletin
Auteur(s): G.A. Maki, R.G. Roden
Mots clés: Surface engineering, Tailings disposal systems, Stacking, Mobile stackers, Potash, Brine ponds, Settling ponds.
Numéro: 939
Volume: 83
Année: 1990
Texte
Sommaire: This paper explores the history of AC static variable frequency control drive systems on open cast mining machinery, in particular electric mining shovels and electric walking draglines, over the past ten years. It critiques the peformance of these drive systems from a productivity and operating cost standpoint and evaluates the over-all success of the original design concepts as they were envisaged in the 1970s. The paper details the state-of-the-art as it exists today as well as design...
Publication: CIM Bulletin
Auteur(s): T.W.Sullivan
Mots clés: AC static drive systems, Equipment, Excavators, Technology.
Numéro: 939
Volume: 83
Année: 1990
Texte
Sommaire: Tailings Engineering has the responsibility for planning and coordinating tailings disposal and for ensuring the stability of the tailings dyke. The inclusion of both the planning and geo-technical functions in one team has resulted in greater efficiency in the design and planning process. Major challenges in tailings disposal facing Syncrude are in the areas of: (1) sludge disposal; (2) instrumentation and monitoring; and (3) liquefaction. Meeting these challenges will have a significant...
Publication: CIM Bulletin
Auteur(s): Larry T. Yano, Gerald T. Handford
Mots clés: Tailings Engineering, Syncrude, Sludge disposal, Instrumentation and monitoring, Liquefaction.
Numéro: 939
Volume: 83
Année: 1990
Texte
Sommaire: Installation of a 3.6 km long raw coal conveyor in the Balmer open pit was undertaken to improve over-all haulage efficiency. This paper covers the rationale behind this project, system design and construction aspects and initial operating experiences. The majority of the construction work was performed by our own personnel. Where feasible, used equipment was installed to reduce capital cost and facilitate a tight construction schedule.
Publication: CIM Bulletin
Auteur(s): C.H. van Eendenburg
Mots clés: Equipment, Coal mining, Conveyors, Open pit mining, Balmer open pit.
Numéro: 939
Volume: 83
Année: 1990
Texte
Sommaire: Exploration drilling ofevaporite sequences in eastern Canada has undergone significant changes in equipment, techniques and philosophy since the early 1970s. The result has been the recovery of full-size cores from properly conditioned and stabilized holes, high quality open hole geophysical logs, and high quality metallurgical samples. The majority of modifications have resulted from the necessity to preserve the integrity of the evaporite deposit, and thus ensure the potential development,...
Publication: CIM Bulletin
Auteur(s): B.C. Carter, J.P. Anderle
Mots clés: Exploration, Geology, Drilling methods.
Numéro: 939
Volume: 83
Année: 1990
Texte
Sommaire: The Granisle and Bell Copper mines were offidallyput into production in 1966 and 1972, respectively. The Granisle Mine was purchased in late 1979 by Noranda and the two operations were amalgamated as one division. Both mines were closed in 1982 after sustaining heavy financial losses during a period of low copper prices beginning in 1981.
This paper describes the resumption of operations at the Bell Mine in 1985 after its shutdown period of three years and the dramatic and sustained improveme...
Publication: CIM Bulletin
Auteur(s): M.C. Ethier, A.L. Laramie
Mots clés: Maintenance, Mine management, Human resources, Employee relations.
Numéro: 939
Volume: 83
Année: 1990
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