B - Operations – Transporting – 01 – F
Patent
B - Operations, Transporting
01
F
B01F 3/08 (2006.01) B01F 5/04 (2006.01) B01F 5/06 (2006.01) D21F 1/00 (2006.01) D21F 1/06 (2006.01) D21F 1/08 (2006.01)
Patent
CA 2438988
The invention relates to a method and a mixer for mixing flows of a papermaking process. In the invention, a first flow (V1) is conveyed through a tube (1), and turbulence is generated in it by means of form parts (4a to 4d) located on the inner periphery (3) of the tube. The mixing zone of the mixer comprises feed openings (8, 11, 30, 40) on the inner periphery of the tube for feeding a second flow (V2) from a feed channel (7) outside the tube (1) into the first flow (V1), whereby the flows are mixed as a result of the turbulence generated by the form parts. According to a preferred embodiment of the invention, at least one form part comprises a feed opening (8).
L'invention concerne un procédé et un mélangeur pour mélanger des courants dans un processus de fabrication de papier. Selon cette invention, un premier courant (V>1<) est conduit à travers un tube (1) et une turbulence est produite à l'intérieur de ce tube au moyen de parties profilées (4a à 4d) situées sur la périphérie intérieure (3) du tube. La zone de mélange du mélangeur comprend des ouvertures d'alimentation (8, 11, 30, 40) sur la périphérie intérieure du tube, lesquelles ouvertures servent à introduire dans le premier courant (V>1<) un second courant (V>2<) provenant d'un canal d'alimentation (7) situé à l'extérieur du tube (1), lesdits courants étant mélangés sous l'effet de la turbulence produite par les parties profilées. Selon un mode de réalisation préféré de cette invention, au moins une partie profilée comprend une ouverture d'alimentation (8)
Hietaniemi Matti
Lamminen Perttu
Lindroos Kati
Sams Juhani
Metso Paper Inc.
Ridout & Maybee Llp
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