Simulation as a tool for quantifying design parameters for material handling systems.

The lifetime cost of a material handling system, or any mine system, can be reduced through the application of quality engineering. Dynamic simulation is a powerful tool that can be used to enhance the experience and ingenuity of the design team. It cannot only de-bottleneck the system to improve system productivity, but also define critical design criteria to eliminate over-design and reduce capital cost. Eliminating over-design also reduces operating costs by lowering component replacement costs and by ensuring all parts of the system operate at a higher utilization and efficiency.
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Summary: A brief history of the development of the Kivcet flash smelting process is presented. The broad scope of the process with an ability to treat high grade lead sulphide concentrates, as well as oxidized lead-zinc residues, is emphasized. Fine coal in the charge serves two purposes, one as auxiliary fuel and the other as a pre-reductant for ferric iron in residues. Current Kivcet operations incorporate a layer of coke or Òcoke checkerÓ at the surface of the slag in the reaction shaft that acts...
Publication: CIM Bulletin
Author(s): Y.I. Sannikov, M.A. Liamina, V.A. Shumskij, Y.A. Grinin, M.V. Radashin
Issue: 1022
Volume: 91
Year: 1998
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Summary: In open pit mining, each small mining unit (SMU) is selected for mill processing based on an estimate of its true grade. The estimation is usually done using analyses of cuttings from blast holes within that SMU. One common estimator used for selection is the arithmetic average of within-SMU samples. This estimator is conditionally biased. The effect of a conditional bias is to overestimate the profit really recovered from the deposit. For this reason, a conditionally unbiased estimator is...
Publication: CIM Bulletin
Author(s): D. Marcotte, P. Groleau, O. Tavchandjian
Issue: 1022
Volume: 91
Year: 1998
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Summary: Acquired by Teck Corporation in 1990, the White Earth project, located in southwestern Colorado is the largest titanium resource in the U.S. Teck Corporation has conducted geologic, reserve, mineral processing, pre-marketing, and environmental baseline studies directed toward the economic feasibility of producing titanium pigment. The White Earth project is situated in a 31 km2 alkalic-carbonatite complex intruded into Precambrian granite and metamorphic rocks about 570 million years ago....
Publication: CIM Bulletin
Author(s): K.C. Shaver, KR.A. Lunceford
Issue: 1022
Volume: 91
Year: 1998
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