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Thread: Sampling during pneumatic conveying

  1. #1
    Carl Hansen - Hamlet Protein, Denmark Guest

    Sampling during pneumatic conveying

    We are pneumatic conveying fine powders, and we want to take a representative sample during the conveying. The pipe inner bore is 125 mm.

    Can anyone help me?

    Regards

    Carl Hansen

  2. #2
    Join Date
    Feb 02
    Posts
    5
    We have developed an inline sampler which takes a slug of material from the conveying line so you get a 100% representative cross section.

    Please contact me for details.

    Alex Marshall, MID, UK
    0115 9382154
    www.mid.uk.com

  3. #3
    biplab K. Datta - POSTEC, Norway Guest
    I had developed an online sampler for getting representative sample on a 2inch bore pipeline. This sampler can take out a discreet length of conveyed air solid mixture.

    If you are interested we can develop this unit at our research laboratory for your purpose. Please also let us know the operating parameters of your conveying system.

  4. Sampling

    On-line sampling devices have been available in the market place for many years now. In a laboratory situation I generally fit a diverter valve into the pipeline and use this. With rapid opening and closing you should get a reasonably representative sample of the full bore flow, albeit rather large from a five inch pipeline.

    David Mills
    David Mills

  5. The sample device you need will depend on whether you are conveying in dense or dilute phase and also whether you want a trickle sample or a continuous sample. It is not easy to get a 100% representative sample unless the entire flow is diverted into a sample pot for a few seconds.

    Regards,

    Amrit Agarwal (Tim)

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