Hydrohoists are often called lock-hopper feeders and are used for slurry transport, with minimum erosion in the equipment. However, contamination due to direct contact between mixture and clear liquid (such as clear water) had been a shortcoming of the hydrohoist. The author studied the performance of contamination of the hydrohoist, developed by new types of hydrohoists and came to the following conclusion: 1) The hydrohoists using gravity feed cannot prevent contamination. 2) In the horizontal hydrohoist adopting forced flow and special devices, the contamination of clear liquid by slurry is negligible. This type is fit for transport of coarse material. 3) In the vertical hydrohoist adopting separator and special devices, contaminations both of clear liquid and of mixture are negligible. This type is fit for transport of fine slurry.

  • Supplemental Notes:
    • Presented at HYDROTRANSPORT 3--Third International Conference on the Hydraulic Transport of Solids in Pipes, Colorado School of Mines, Golden, Colo., May 15-17, 1974. Sponsored by BHRA Fluid Engineering. Complete set of Conference papers available for $45.00.
  • Corporate Authors:

    Colorado School of Mines

    1500 Illinois Street
    Golden, CO  United States  80401
  • Authors:
  • Publication Date: 1974-5

Media Info

  • Pagination: 16 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00056448
  • Record Type: Publication
  • Source Agency: British Hydrodynamics Research Association
  • Report/Paper Numbers: Paper A1
  • Files: TRIS
  • Created Date: Jul 15 1974 12:00AM