Underflow Configurations and Considerations

  • Alex C. Hoffmann
  • Louis E. Stein


The design, operation and mechanical condition of the underflow configuration can, and usually does, strongly impact the separation performance of a cyclone. In reality, the cyclone’s performance is just as good as its underflow design. It is the writers’ observation that about 90% of all cyclone related problems are due to problems associated with the inability of the ‘collected’ solids to properly discharge out the underflow. This can be due to a blockage or bridge of some sort or, more often, gas leakage into the cyclone via the underflow piping because of a poor underflow seal.


Pressure Loss Separation Performance Erosive Wear Total Pressure Loss Submergence Depth 
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Copyright information

© Springer-Verlag Berlin Heidelberg 2002

Authors and Affiliations

  • Alex C. Hoffmann
    • 1
  • Louis E. Stein
    • 2
  1. 1.Programme for Process Technology, Department of PhysicsUniversity of BergenBergenNorway
  2. 2.Mechanical SeparationsHoustonUSA

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