The use of stepped pipelines is generally recommended if the material being conveyed is either friable or abrasive, since the problems of particle degradation and erosive wear both tend to increase exponentially with increase in conveying air velocity. In many cases it is possible that the material could be conveyed with a lower air supply pressure and air flow rate. A review of the use of stepped pipelines in pneumatic conveying systems is presented in the paper. A number of different situations exist in pneumatic conveying that are appropriate to the application of stepped pipelines and many of these are discussed and illustrated. It is often considered that stepped pipelines are only suitable for high pressure and long distance conveying but this is not necessarily the case. Stepped pipelines can be used for vacuum conveying and over short distances, and multiple steps may be required in certain situations. Stepped pipelines are appropriate for both dilute and dense phase conveying and illustrations are provided with respect to both positive pressure and vacuum conveying systems.


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    Title :

    Application of stepped pipelines in pneumatic conveying systems


    Additional title:

    Anwendung gestufter Rohrleitungen in pneumatischen Fördersystemen


    Contributors:
    Mills, D. (author)


    Publication date :

    2002


    Size :

    16 Seiten, 18 Bilder, 10 Quellen



    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English