FLOW PROPERTIES OF COAL-WATER SLURRIES

Properties of coal-water slurries were studied in two separate phases: a rheological phase and a pipeline phase. The primary purpose of the study was to investigate the rheology of fine coal slurries. The secondary purpose was to determine if the energy requirements to pipeline the coal-water slurries could be predicted from the rheology data. The slurries consisted of 6 x 10, 100 x 200, and 200 x 0 mesh coal in water. A fourth slurry consisted of a mixture of the 6 x 10 and 200 x 0 mesh coal. Brookfield and stormer rotational viscometers were used to obtain or simulate rheograms for a range of fine coal concentrations, temperatures, and particle sizes. All the slurries were pumped through a 1-inch diameter acrylic pipe. The fine coal slurries were found to encompass four distinct rheological models. A scale-up method applicable to Bingham plastics was found satisfactory for predicting pipeline headlosses of fine coal slurries from rheology data.

  • 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  USA  80401
  • Authors:
    • Faddick, R R
  • Publication Date: 1974-5

Media Info

  • Pagination: 10 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00056479
  • Record Type: Publication
  • Source Agency: British Hydrodynamics Research Association
  • Report/Paper Numbers: Paper H1
  • Files: TRIS
  • Created Date: Jul 15 1974 12:00AM