Gas Solid Separation with Cyclones

Gas Solid Separation with Cyclones, .4 CEUs,
Ken Rubow , instructor

March 22, 2010
1 PM - 5 PM
Grand Hyatt
San Antonio, TX

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1-1 Types of reverse flow cyclones and special features

i) Conventional reverse flow cyclone
ii) Vantongeren cyclone
iii) Cardiff cyclone
iv) High efficiency cyclone

1-2 Performance characteristics

i) Cut particle size
ii) Grade efficiency
iii) Total efficiency
iv) Pressure drop

1-3 Effect of the following design variables on the performance of the cyclone

i) Type of entry

a) Tangential entry
b) Spiral entry
c) Helical entry
d) Axial entry

ii) Inlet dimension
iii) Gas outlet diameter
iv) Ratio of outlet area to the inlet area
v) Length of vortex tube
vi) Shape of vortex tube
vii) Conical height

1-4 Effect of the following operating variables on the performance of the cyclone

i) Inlet velocity
ii) Dust concentration

1-5 Design of cyclone procedure
1-6 Effect of inlet duct shape on cyclone performance
1-7 Case studies for retrofitting cyclone
1-8 Calculation for estimation of efficiency and pressure drop
1-9 Checklist for evaluation of existing cyclone system
1-10 Importance of auxiliaries

i) Air lock valve
ii) Flapper valve
iii) Inlet duct

1-11 Importance of Vortex breaker
1-12 Uniflow cyclone performance

i) Effect of tangential velocity
ii) Effect of vane angle
iii) Effect of purge rate
iv) Effect of length of cyclone

1-13 Uniflow cyclone application

i) Air cleaning for clean room
ii) Air in take system for I.C. engines
iii) Gas power stations
iv) Air intake for compressors
v) Air intake system for gas power station

1-14 Applications of reverse flow cyclone

i) On line particle size analyzer in two phase flow system
ii) Application as classifier for size separation
iii) Cyclone heat exchangers for heat transfer from hot gas to particles

1-15 Case studies

i) Pharmaceutical industry
ii) Cement industry
iii) Coal thermal station
iv) Mineral industry
v) Dairy industry
vi) Polymer industry.

About the instructor:

KENNETH L. RUBOW
Mott Corporation
84 Spring Lane
Farmington , CT
e-mail: krubow@mottcorp.com

Dr. Rubow is Vice President - Engineering, Research and Development at Mott Corporation. He is responsible for directing value-added product development, design and application testing of sintered porous metal devices used in a variety of industrial applications involving both gases and liquids. These devices, which are used worldwide, include filters, filter systems, restrictors, spargers, diffusers, fluidizers, and metering frits. Industries served include semiconductor, chemical, textile, instrumentation, energy and environmental.

He received his BS, MS and Ph.D. in mechanical engineering from the University of Minnesota. His specialization was particle technology and particulate filtration. Prior to joining Mott in 1995, Dr. Rubow worked at the University of Minnesota in increasing responsible positions during a 22-year timespan. He was Manager of the Particle Technology Laboratory, Associate Director of the Center for Filtration Research, and Adjunct Associate Professor of Mechanical Engineering. Prior to joining Mott he also was a consultant and expert witness for more than 30 companies and government agencies in areas of particle technology and particulate filtration.

Dr. Rubow is an international expert in the field of particle filtration and aerosol science. He has conducted extensive research for more than 25 years in the areas of particle technology, aerosol science, air quality and human exposure monitoring. Specific research topics include aerosol filtration, instrumentation for particle generation and measurement, measurement of airborne particulate matter to assess human exposure, measurement of air quality in workplace and ambient atmosphere, research on fugitive dust emissions, air quality measurement in microgravity environments and aboard Space Shuttles, and measurement of particle size distributions and elemental composition. Dr. Rubow has more than 145 technical publications and has edited three books, all dealing with particle technology and filtration. He has two patents dealing with gas filtration products.

He actively participates in nine technical societies, numerous test standard committees and education activities. He recently served on the Board of Directors of two societies and has served on more than 25 society committees. In particular Dr. Rubow served on the Board of Directors of the Am. Filtration and Separations Society (1991-2002) where he served as Chair (1998-99) and is past Chair of the 1991 and Co-Chair of the 1998 annual technical conferences. He also served on the Board of Directors of the Am. Assoc. for Aerosol Research (1997-1999) where he served on the Finance Committee and chaired the Awards Committee.

He is a member of numerous SEMI committees and taskforces, which are responsible for developing test standards for the semiconductor industry: he chairs the Filter Task Force and is a member of the Facilities Committee, Gases Committee, Particles in Distribution Task Force and Gas Purification Task Force. He continues to teach short courses and tutorials at the University of Minnesota and numerous technical conferences covering the topics of filtration and particle technology.

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