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SCIENTIFIC PAPER |
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cerig.efpg.inpg.fr |
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Last update : January, 17th 2006 |
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Modelling of agitation in the disintegration process of pulp suspensions |
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Benjamin Fabry**, Maurice Renaud*, Jean-Claude Roux* |
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*École Française de Papeterie et des Industries Graphiques - EFPG **Centre Technique du Papier - CTP Revue ATIP vol.57, n°5, Décembre 2003-Janvier 2004 |
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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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Full text available (pdf, 548 Ko)
