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Document IIF

Le transport de glace dans des tuyauteries de refroidissement dans les mines de grande profondeur.

The transportation of ice through pipelines within cooling systems for deep mines.

Auteurs : SHEER T. J., MCGARRY R., CHAN C. Y., et al.

Résumé

Ice is used in three deep Southern African mines as a secondary refrigerant to transport refrigeration to underground working areas. Two main types of ice are used: 'hard' ice in the form of dry fragments and 'slush' ice that resembles wet snow, obtained by dewatering an ice slurry. The ice transportation systems are based on long pipelines connecting the ice plants at ground level to underground melting dams, from where chilled water is circulated to air coolers. The flow of ice is maintained by gravity-driven pneumatic conveying through successive vertical and horizontal pipeline sections. The engineering of these installations is discussed and guidelines are presented, based on experimentally-derived pressure drop models, which can be used in the design of ice conveying pipelines for either 'hard' ice or 'slush' ice.

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Détails

  • Titre original : The transportation of ice through pipelines within cooling systems for deep mines.
  • Identifiant de la fiche : 2004-2388
  • Langues : Anglais
  • Source : 21st IIR International Congress of Refrigeration: Serving the Needs of Mankind.
  • Date d'édition : 17/08/2003

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