Air taken from the surrounding areas of a ship for ventilation or air conditioning is contaminated by dust during cargo handling operations. The dust has a harmful effect on both crew and ship machinery, particularly the engines which suffer from faster wear and tear. Single-state air dust separators have certain advantages: depending on their type, at high dust concentration they become easily choked and do not separate the smallest particles. The design which has been developed and tested is a two-stage system. The first stage consists of an axial cyclone with the inclination angle of the blades selected so that small flow resistance can be obtained at large separation capacity. It is used to separate larger dust grains. The second stage features gas-type dust separators with a self-cleaning device. At the test stand with the flow capacity of 1,300 m3/h the total dust separation efficiency amounted to 96-99%, depending on the type of dust. The advantage of the unit lies in a small number of moving elements. Only the separated dust discharging locks and the bag-shaking mechanism are in motion. This significantly decreases the failure frequency of the system. It is possible to select a bag fabric resistant to specific aggressive properties of the dust from cargoes carried onboard.

  • Supplemental Notes:
    • Marine Technology & Transportation: ODRA 95, 1st Intl Conf on Marine Technology; 20-22 Sept 1995; Szczecin, Poland & MARTRANS 95, 1st Intl Conf on Marine Transport in the 21st Century; 30 Aug-1 Sept 1995; Plymouth, UK. Procs. Publ by Computational Mechanics Publications, UK, ISBN 1 853123307. Section 7, p 417 [6 p, 3 ref, 4 tab, 2 fig]
  • Authors:
    • Kirkiewicz, J
    • Chrzanowski, J
  • Publication Date: 1995


  • English

Subject/Index Terms

Filing Info

  • Accession Number: 00718896
  • Record Type: Publication
  • Source Agency: British Maritime Technology
  • Files: TRIS
  • Created Date: Mar 27 1996 12:00AM