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Last update :
January 17, 2006 |
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Abstract
In the paper industry, the pulp disintegration process occurs
in the first stages in the case of a non-integrated mill. A physical description
of the phenomena encountered in a disintegrator is given and applied for a
laboratory-helical disintegrator with a mixture of water and glycerol.
Then, this description is extended to the pulp suspensions in
the low consistency range of mass solid fraction (0% to 8%). The differences
between the volumetric powers consumed to rotate a pulp and just water are
studied as a function of the rotation speed and the mass solid fraction.
A global relation is given for the power ratio and a critical
volumetric power is determined.
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