Spraying characteristics of commercial black liquor nozzles

Black liquor at typical nozzle conditions has been sprayed through standard splashplate, V-jet, and swirl cone nozzles using an enclosed spray chamber. Flow rate/pressure drop characteristics were measured as a function of temperature and solids concentration. Videos of the resulting liquor sprays w...

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Bibliographic Details
Published in:Tappi journal 1995-01, Vol.78 (1), p.121-128
Main Authors: Empie, H.J. (Institute of Paper Science and Technology, Atlanta, GA.), Lien, S.J, Yang, W, Adams, T.N
Format: Article
Language:English
Subjects:
BUSE
DECHET INDUSTRIEL
DESECHOS INDUSTRIALES
Flow measurement
FURNACES
Image analysis
INDUSTRIAL WASTES
NOZZLES
Pressure drop
Pressure measurement
PULVERISATION
PULVERIZACION
Recovery
Spray guns
SPRAYING
SULFATE LIQUOR
Thermal effects
TOBERAS
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Summary:Black liquor at typical nozzle conditions has been sprayed through standard splashplate, V-jet, and swirl cone nozzles using an enclosed spray chamber. Flow rate/pressure drop characteristics were measured as a function of temperature and solids concentration. Videos of the resulting liquor sprays were subjected to image analysis, and droplet size distributions were determined. Mass fraction as a function of diameter follows a square root-normal distribution law. Median diameters have been correlated using statistically significant dimensionless groups. Implications for nozzle operating conditions on recovery furnace performance are discussed.
ISSN:0734-1415