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Pneumatic conveying of coal

Conference Paper


Abstract


  • This paper presents experimental results obtained from recent investigations into the dense-phase and long-distance pneumatic transportation of pulverised coal and the dilute-phase conveying of sub 35 mm and sub 50 mm crushed coal. Using these results together with a recently developed test-design procedure (based on an accurate correlation analysis) and an improved mathematical model, the limits and future potential of pneumatically conveying coal is explored by predicting operating conditions for two applications: 24 t h-1 of pulverised coal over 1.8 km; 300 t h-1 of sub 50 mm coal over 150 m. The advantages of selecting stepped-diameter pipelines for long-distance and/or large-throughput applications (e.g. to minimise pressure loss, transport velocity, system erosion and air consumption) and the importance of selecting a suitable method of air injection (e.g. to achieve high values of m* in the dense-phase transport of pulverised coal) also are demonstrated.

Publication Date


  • 1990

Citation


  • Wypych, P. W., Kennedy, O. C., Stebbins, K., & Arnold, P. C. (1990). Pneumatic conveying of coal. In National Conference Publication - Institution of Engineers, Australia (pp. 73-78).

Scopus Eid


  • 2-s2.0-0025436654

Web Of Science Accession Number


Start Page


  • 73

End Page


  • 78

Issue


  • 90 pt 3

Abstract


  • This paper presents experimental results obtained from recent investigations into the dense-phase and long-distance pneumatic transportation of pulverised coal and the dilute-phase conveying of sub 35 mm and sub 50 mm crushed coal. Using these results together with a recently developed test-design procedure (based on an accurate correlation analysis) and an improved mathematical model, the limits and future potential of pneumatically conveying coal is explored by predicting operating conditions for two applications: 24 t h-1 of pulverised coal over 1.8 km; 300 t h-1 of sub 50 mm coal over 150 m. The advantages of selecting stepped-diameter pipelines for long-distance and/or large-throughput applications (e.g. to minimise pressure loss, transport velocity, system erosion and air consumption) and the importance of selecting a suitable method of air injection (e.g. to achieve high values of m* in the dense-phase transport of pulverised coal) also are demonstrated.

Publication Date


  • 1990

Citation


  • Wypych, P. W., Kennedy, O. C., Stebbins, K., & Arnold, P. C. (1990). Pneumatic conveying of coal. In National Conference Publication - Institution of Engineers, Australia (pp. 73-78).

Scopus Eid


  • 2-s2.0-0025436654

Web Of Science Accession Number


Start Page


  • 73

End Page


  • 78

Issue


  • 90 pt 3