An investigation of segregation and mixing in dense phase pneumatic conveying

Jiansheng Xiang, Don McGlinchey, John-Paul Latham

Research output: Contribution to journalArticlepeer-review

14 Citations (Scopus)


Pneumatic conveying of bulk materials has become an important technology in many industries: from pharmaceuticals to petro-chemicals and power generation. Particulate segregation has been investigated in many solids handling processes. However, little work has been published on the segregation and mixing in pneumatic conveying pipelines, particularly in dense phase pneumatic conveying. Due to the character of dense phase flow, it is difficult to investigate the segregation in a flowing plug. A sampling device was designed and built to take samples from the pneumatic conveying pipeline after “catching a plug”. Several experiments were conducted over a range of gas–solids flow conditions with 3 mm nylon pellets and 3 mm ballotini as a segregating mixture.

Original languageEnglish
Pages (from-to)345-355
Number of pages11
JournalGranular Matter
Issue number4
Publication statusPublished - 1 Jan 2010


  • bulk materials
  • pneumatic conveying


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