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Conference Proceedings

Hoist and Haul 2005

Conference Proceedings

Hoist and Haul 2005

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Are Synthetic Fibre Ropes Suitable for Mine Winding?

Mine hoisting is carried out from depths of up to 4 km. At extreme depths, the ropes are so heavy that a large part of their capacity is employed in lifting themselves. Consequently, deep mines have an intermediate winding station. Even at lesser depths, the weight of steel wire rope reduces the possible payload._x000D_
Of course, steel wire ropes have, over the years, demonstrated exceptional reliability and acceptable lifetimes. The use of steel is supported by well established operating rules and sound NDT methods._x000D_
However, lightweight ropes made from synthetic fibres could be of great benefit to the industry, with the prospect of eliminating two-stage winding and substantially increasing the payload. Initial tests, in cycling over sheaves, have demonstrated that an aramid co-polymer fibre, Technora is a potential candidate for this type of service._x000D_
This paper presents results of testing carried out on aramid co-polymer and other synthetic fibre ropes. These results hold out the prospect of exceptionally long lives. Possible NDT methods are explored including optical fibres with optical time domain reflectometry or with Brillouin scattering, plus a method based on carbon fibre continuity._x000D_
The introduction of aramid co-polymer ropes will require extensive testing and a program is proposed in the format of a Joint Industry Project.
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  • Published: 2005
  • PDF Size: 0.46 Mb.
  • Unique ID: P200507021

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