Three hydraulic hoisting rigs are described in some detail: At the iron ore mine Lengede Broistedt, the entire conventional cage-winding equipment has been superseded by hydraulic transport. Up to 5,000 tons of ore per day with a size fraction up to 30 mm is pumped using centrifugal pumps from a depth of 120 m. In a trial installation for hydraulic winning of coal in the Carl Funke mine in Essen, the size fraction less than 1 mm has been pumped over a distance of 5,500 m from a 750 m depth to the surface washery using reciprocating pumps. The capacity was 800 tons fine coal per day. In a second large-scale trial at the Gneisenau coal mine in Dortmund, the entire hydraulically won coal is broken to less than 60 mm and transported by a pipe-feeder from 700 m depth to the surface. The capacity is 2,500 tons run-off-mine coal per day. This paper describes the most important stages in the development, the experimental programmes, and the essential technical and economic results for the three plants.

  • 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:
    • Harzer, H
  • Publication Date: 1974-5

Media Info

  • Pagination: 6 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00056449
  • Record Type: Publication
  • Source Agency: British Hydrodynamics Research Association
  • Report/Paper Numbers: Paper A2
  • Files: TRIS
  • Created Date: Jul 15 1974 12:00AM