An examination of pulp viscosity in tubes at higher shear rates

Whiten W., Steffens P. and Hitchins J. (1993) An examination of pulp viscosity in tubes at higher shear rates. Minerals Engineering, 6 4: 397-404. doi:10.1016/0892-6875(93)90018-I


Author Whiten W.
Steffens P.
Hitchins J.
Title An examination of pulp viscosity in tubes at higher shear rates
Journal name Minerals Engineering   Check publisher's open access policy
ISSN 0892-6875
Publication date 1993-01-01
Sub-type Article (original research)
DOI 10.1016/0892-6875(93)90018-I
Open Access Status
Volume 6
Issue 4
Start page 397
End page 404
Total pages 8
Subject 1900 Earth and Planetary Sciences
1906 Geochemistry and Petrology
1909 Geotechnical Engineering and Engineering Geology
Abstract Deficiencies in the description of pulp properties is a major factor limiting improvements in modelling of the flow within mineral processing separation devices such as jigs and cyclones. Two factors severely hamper the development of accurate descriptions of pulp rheology - the large number of variables which influence pulp behaviour and the difficulty of making accurate measurements of pulp viscosity. Many factors make measurements of pulp viscosity difficult, including wall effects, turbulence, setting and the physical size of particles, particularly at high shear rates. This paper examines the measurement of pulp viscosity using capillary viscometers, and in particular the high shear rate regions for which turbulent flow (or the transition to turbulent flow) occurs. The results show a marked difference in the behaviour of the pulps in this regime compared to Newtonian fluids. This is significant for hydrodynamic simulations of pulps at high shear rates.
Keyword Pulp viscosity
slurry viscometer
tube viscometer
turbulence
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status Unknown

Document type: Journal Article
Sub-type: Article (original research)
Collection: Scopus Import - Archived
 
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Created: Tue, 23 Aug 2016, 13:43:00 EST by System User