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  1. xiangqi

    Double wet-scrubber??

    Thank you.
  2. xiangqi

    Double wet-scrubber??

    Hi Siretb, The PSD is: D50 @ 50um, about 20% less than 20 um, and 5% less than 10 um. The Specific gravity of the material is about 2.5. Thanks!
  3. xiangqi

    Double wet-scrubber??

    Thanks for your input, siretb! Energy is not a problem. I already sent the request to meaure the pressure drop through Venturi. The emission gas has a very high tempperature (57-59 oC) which carries lots of vapor from the system. The problem is the limited fresh make-up water. I know the right...
  4. xiangqi

    Double wet-scrubber??

    Many thanks to the kindly reply. To mbritt: Yes, the clay is neutrally charged, but the temperature is at about 65 oC - coming from the spray dryer. You raised good point about the contact time in the Venturi, and I am not sure we have 0.5 sec contact time. The air flow is very high (maybe...
  5. xiangqi

    Double wet-scrubber??

    My plant has a spray dryer for clay product. The dust is intercepted by cyclones at moderate efficiency (around 85% - my estimation) due to small particle size distribution. The system has a Venturi type scrubber to reduce the PM (particulate matters) emissions (regulation: 100 mg/m3). From...

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