A Helix Dumper is a rail transport and unloading solution, designed for continuous rolling discharge of bulk commodities. Originally developed for the iron ore industry, the Helix Dumper system can handle many types of fine-grained and potentially sticky commodities. When the Helix Dumper wagon enters the unloading area, a wheel at the top of the wagon makes contact with the spiral-shaped rigid guide that constitutes the unloading station. As the wheel travels along the path of the guide, the wagon chassis remains on the rails while the body of the wagon is rotated 148 degrees to dump its load. After the rotation, the direction of the guide changes and the wagon body is returned to its normal position. The Helix Dumper has a discharge rate of up to 25,000 tonnes per hour.[1] [2][3][4]

The discharge process is powered by the locomotive, which pulls the unbroken train set through the unloading station. The Helix Dumper unloading station has no moving or motorised parts and requires no additional power supply.[5][6]

Alternatives

The main alternatives to the Helix Dumper system are bottom dumping systems and rotary car dumper systems.[7][8]

See also

References

  1. ↑ Kiruna Wagon. "Helix Dumper". Retrieved 2016-12-21.
  2. ↑ Railway Gazette (5 June 2012). "'Basket turning' high capacity ore wagons ordered". Retrieved 2016-12-21.
  3. ↑ Entreprenad (23 April 2012). "Genomtänkt logistik i gruvprojekt". Retrieved 2016-12-24.
  4. ↑ Railway Gazette (14 October 2016). "Kiruna Wagon signs Australian licensing agreement". Retrieved 2016-12-24.
  5. ↑ Dan Templeton, International Railway Journal (7 September 2016). "Kiruna Wagon helix unloader heads for Australia". Retrieved 2016-12-24.
  6. ↑ Kiruna Wagon. "Helix Dumper". Retrieved 2016-12-21.
  7. ↑ David Phillips (June 2015). "Which Unloading System?" (PDF). Retrieved 2016-12-21.
  8. ↑ McGraw-Hill, Incorporated (1975-08-01). Decide between rotary and bottom-dump coal unloading. Power. Vol. 119. p. 47.
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