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  • Pneumatic Conveying Solutions for your application

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    Conveying Technologies
    Conveying Technologies
    Conveying Technologies
    Conveying Technologies

    Comparison of conveying modes

    Dilute Phase Conveying

    High gas velocities: v = 25-40 m/s
    v = 5.000-8.000ft/min
    Low product to air ratio: range 1-5 to 1
    Low to medium pressure drop: p = 0.1-1.0 bar
    p = 1.5 - 15 psig
    Special pipe support requirements: No

    Dilute phase characteristics:

    • High dust volume
    • Mostly coarse dust long and short streamers, depending on the product
    • Dust surges at the end of the unloading process
    • Low investment costs
    • Difficult dust removal because of high dust volume and streamers
    • High product losses in form of dust

    Typical conveying layouts for polyolefine plants

    Dilute Phase Conveying – Traditional layout with elutriators for dust separation

    1 Compressed Air Supply 2 Blender 3 Elutriator (dedusting) 4 Storage Silos

    These systems can be upgraded easily with mobile or stationary DeDusters® located under the silos.

    Traditional solution with elutriator Modern solution with stationary or mobile DeDuster®

    Dense Phase Conveying

    Low gas velocities: v = 2-10 m/s
    v = 400-2.000ft/min
    High product to air ratio: range 15-50 to 1
    High pressure drop: p = 0.5-3.5 bar
    p = 7 - 50 psig
    Special pipe support requirements: Yes


    Dense phase characteristics:

    • Low dust volume
    • Very fine dust, but high electrostatic charged dust, sticks to the pellet surface
    • No streamers through conveying
    • Streamer formation caused by purging
    • High investment costs
    • Very difficult to remove the electrostatically charged micro dust
    • Low product losses in form of dust

    Typical conveying layouts for polyolefine plants

    Dense Phase system without dust separation

    1 Compressed Air Supply 2 Blender 3 Silo

    These systems can be upgraded easily with mobile or stationary DeDusters® located under the silos.

    Modern dense phase system with stationary or mobile DeDuster®

    STRANDPHASE® Conveying

    Optimized gas velocities: v = 15-25 m/s
    v = 3.000-5.000ft/min
    Medium product to air ratio: range 5-18 to 1
    Medium to high pressure drop: p = 0.5-2.0 bar
    p = 7 - 50 psig
    Special pipe support requirements: No

    STRANDPHASE® characteristics:

    • Low to Moderate dust volume
    • Mostly coarse dust and some short streamers, depending on the product
    • Low to moderate investment costs
    • Easy dust removal with DeDuster®
    • Low to moderate product losses in form of dust

     


    Typical conveying layouts for polyolefine plants

    Strandphase Conveying with Pellbows and dedusting under the silos

    1 Compressed Air Supply  2 Blender  3 Silo  4 DeDuster® (mobile or  stationary)  5 Pellbow®

    For new installations, Pelletron recommends the pellcon3® system, utilizing STRANDPHASE® conveying, Pellbows® and DeDusters®.

    pellcon3

    Discover pellcon3®:
    the gentle conveying process

    See how the combination of STRANDPHASE®, the Pellbow® and our DeDuster® can save you money.

    The New Thinking In Pneumatic Conveying: pellcon3®

    An overview of pneumatic conveying technologies and a review of how Pelletron products and services can improve your process.

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