A mobile plant for fine coal cleaning

Abstract 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 liberate pyrite and therefore need effective and efficient separation of these fine sulphur particles. The difficulties involved in solving these problems are two-fold. One is the reluctance to experiment in an operating wash plant and the other is that laboratory scale testing often cannot be extrapolated to the plant environment. The mobile fine cleaning plant with its ability to operate at existing coal preparation plants across Canada and with its flexibility in implementing flowsheet options and close monitoring of fine coal circuit variables, is ideally suited to solve these fine coal cleaning problems. The mobile plant objectives are to design and optimize flowsheets, evaluate and improve fine cleaning circuit operations and to test new process monitoring and control equipment.
The schedule for construction and the required resources will be outlined along with flowsheet options and the general R&D philosophy of the mobile plant.
Keywords: Coal preparation, Mobile plant, Coal treatment, Beneficiation, Fine coal
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Publication: CIM Bulletin
Author(s): WILLIAM M. BRYDEN, DONALD E. WAKEFIELD, SCOTT L. EWART
Keywords: Mining Act, Ontario, Mineral development
Issue: 865
Volume: 77
Year: 1984
Text
Summary: 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
Author(s): DENNIS NIKOLS
Keywords: Coal preparation, Coal beneficiation, Electric utility, Tailings, Environmental control, Geotechnical engineering
Issue: 865
Volume: 77
Year: 1984
Text
Summary: The design, development, and verification of the Lovat 7.6-metre diameter full-face tunnel-boring machine is reviewed. Programmatic and technical challenges are outlined with a review of the specifications and the design to meet these requirements. Subsystem designs are presented for the waste material removal, ventilation, cutter head, structural support, advance technique, water removal, and interfaces with the Donkin-Morien Mine. The techniques used to verify that the design meets the...
Publication: CIM Bulletin
Author(s): J.A. HUNTER, R. LOVAT
Keywords: Coal mining, Tunnel boring machines, Underground mining, Donkin-Morien project, Ventilation
Issue: 865
Volume: 77
Year: 1984
Text
Summary: 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
Author(s): PETER A. HACQUEBARD
Keywords: Coal mining, Coal rank, Sydney coalfield, Pictou coalfield, Coalification, Geology, Coking
Issue: 865
Volume: 77
Year: 1984
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