The 1993 rebuild and upgrade of Kalgoorlie nickel smelter


In September 1993, the flash furnace at Kalgoorlie Nickel Smelter, KNS, was brought offline after almost 12 years of operation. This is a record campaign life for a flash furnace. The furnace was totally rebuilt and the capacity of the plant increased from 540 000 tpa to 750 000 tpa of concentrate throughput. The throughput increase was achieved through the construction of a 525 t/day oxygen plant and upgrading of various plant ancillaries. A number of significant design modifications were also built into the flash furnace and oxygen enrichment was implemented in the operation of the Peirce-Smith converters.
This paper discusses the rebuilding of the flash furnace and design modifications made to furnace equipment and ancillary plant. Some preliminary post-startup operating data are presented.
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Summary: New tax rules that can apply to the repayment, extinguishment, or other settlement of a company's debt are finally taking shape. These new rules are far-reaching in their application, and can affect mining companies in a serious, negative way.
Publication: CIM Bulletin
Author(s): Robert B. Parsons
Issue: 992
Volume: 88
Year: 1995
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Summary: At Smoky River Coal Limited (SRCL), economic occurrences of structurally thickened coal deposits form attractive surface mining targets. These steeply dipping, structurally complex deposits require that special attention be given to pit wall design and operational practices.
Where anchor support is feasible, there is potential for reducing footwall waste requirements and/or increasing coal recovery. SRCL has used rock anchors to support footwall slopes since 1985. This paper outlines design...
Publication: CIM Bulletin
Author(s): R.F. Dawson, A.S. Bagnall, K. Barren
Issue: 992
Volume: 88
Year: 1995
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Summary: At Smoky River Coal Limited (SRCL), economic occurrences of structurally thickened coal deposits form attractive surface mining targets. These steeply dipping, structurally complex deposits require that special attention be given to pit wall design and operational practices.
Where anchor support is feasible, there is potential for reducing footwall waste requirements and/or increasing coal recovery. SRCL has used rock anchors to support footwall slopes since 1985. This paper outlines design...
Publication: CIM Bulletin
Author(s): R.F. Dawson, A.S. Bagnall, K. Barren
Issue: 992
Volume: 88
Year: 1995
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Summary: In 1993, trials of two innovative applications of liner support involving the replacement of bolts in the ground support system were undertaken at Inco mines. The first trial involved an evaluation of the effect of dynamic loading on mesh-reinforced boltless shotcrete in a sub-level cave mining area on 2400 level at Stable Mine. The second trial involved an evaluation of the MIROC Mineguard spray-on liner as a replacement for bolts and screen support, or as a replacement for screen support...
Publication: CIM Bulletin
Author(s): Samantha Espley, Chris Langille
Issue: 992
Volume: 88
Year: 1995
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Summary: Since the Mathew's method for open stope design was first proposed by Colder Associates in 1980 it has been applied at a number of mine sites in Canada. The initial hypothesis was based on a relatively small amount of data and the intervening period has allowed the collection of a significant amount of new data to test the validity of the method.
This paper examines a brief history of the evolution of rock mass classification systems to provide background and emphasize their empirical and...
Publication: CIM Bulletin
Author(s): S.B.V. Stewart, W.W. Forsyth
Issue: 992
Volume: 88
Year: 1995
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Summary: The Garford bulb anchor is a modified cable geometry developed and patented by Garford Pty Ltd. of Australia, and which has recently become widely available in Canada. It is produced by deforming the seven wires (including the central kingwire) of a standard cable into a bulb* (Fig. 1). Laboratory cable pull tests indicate that the bond capacity of the 25 mm Garford bulb anchor is comparable to the nutcase cable, in excess of the birdcage cable, and significantly higher than standard 7-wire...
Publication: CIM Bulletin
Author(s): A.J. Hyett, W.F. Bawden, N. Hedrick, J. Blackall
Issue: 992
Volume: 88
Year: 1995
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