PERFORMANCE OF THE HOFFMAN CYCLONE

Technical Report · Mon Mar 31 04:00:00 EST 1958

DOI:https://doi.org/10.2172/4352431· OSTI ID:4352431

Dennis, R; Kristal, E; Silverman, L

Performance tests were conducted on a cyclone collector developed and manufactured by the U S. Hoffman Company to determine whether it had any special advantages for precleaning feed materials gas streams prior to bag filtration. Weight collection efficiency and resistance were determined at flow rates ranging from 50 to 185 cu. ft per min. for atmospheric dust copper sulfate microspheres talc and resuspended fly ash. Dust concentrations varied from 0.05 grain per 1000 cu. ft (atmospheric dust) to 31 grains per cu ft (fly ash). Fly ash collection was investigated as a function of gas temperature 70 to 700 deg , and inlet loading 0.1 to 31 grains per cu. ft. Test results indicated that special design features of this unit did not materially increase the collection efficiency above that of simple cyclones. Furthermore, the resistance at rated flow was considerably higher than that for other collectors

• Research Organization: Harvard Univ., Boston. Air Cleaning Lab.
• NSA Number: NSA-12-007788
• OSTI ID: 4352431
• Report Number(s): NYO-4613
• Country of Publication: United States
• Language: English

Related Subjects

AEROSOLS
ATMOSPHERE
CLEANING
COPPER SULFATES
CYCLONE SEPARATORS
DECONTAMINATION
DUSTS
ENGINEERING
FILTERS
FRICTION
GAS FLOW
GRAIN SIZE
SAMPLING
SPHERES
TEMPERATURE
VELOCITY
WEIGHT